Org pitching register -- IBC 2019
Regular season -- as of 9/29/2019
| Primary |
| Name | Team | P | Age | ERA | W | L | S | G | GS | CG | SHO | INN | H | R | ER | BB | K | HR | GDP |
| Austin L. Adams | Cle | mr | 28 | 4.66 | 1 | 6 | 1 | 37 | 0 | 0 | 0 | 46.1 | 41 | 27 | 24 | 30 | 69 | 5 | 4 |
| Chance Adams | KC | sp | 24 | 5.40 | 0 | 1 | 1 | 6 | 0 | 0 | 0 | 8.1 | 15 | 5 | 5 | 2 | 7 | 2 | 2 |
| Dario Agrazal | LAA | sp | 24 | 3.55 | 3 | 1 | 0 | 8 | 8 | 0 | 0 | 45.2 | 51 | 20 | 18 | 14 | 19 | 2 | 4 |
| Jorge Alcala | Tor | sp | 23 | 6.14 | 0 | 1 | 0 | 7 | 0 | 0 | 0 | 7.1 | 6 | 5 | 5 | 2 | 8 | 2 | 0 |
| Sandy Alcantara | Bos | sp | 23 | 5.96 | 0 | 1 | 2 | 19 | 0 | 0 | 0 | 22.2 | 28 | 18 | 15 | 16 | 24 | 2 | 2 |
| Scott Alexander* | LAA | mr | 29 | 2.37 | 4 | 0 | 2 | 25 | 0 | 0 | 0 | 30.1 | 20 | 8 | 8 | 14 | 29 | 1 | 4 |
| Kolby Allard* | | sp | 21 | 4.63 | 5 | 16 | 0 | 35 | 31 | 0 | 0 | 169.0 | 157 | 94 | 87 | 64 | 149 | 19 | 12 |
| Cody Allen | Bal | cl | 30 | 3.19 | 3 | 8 | 13 | 85 | 0 | 0 | 0 | 93.0 | 74 | 35 | 33 | 31 | 99 | 11 | 9 |
| Dan Altavilla | LAN | mr | 26 | 3.23 | 1 | 0 | 2 | 22 | 0 | 0 | 0 | 30.2 | 28 | 15 | 11 | 19 | 26 | 1 | 6 |
| Jose Alvarado* | Ari | mr | 24 | 3.05 | 2 | 2 | 6 | 41 | 0 | 0 | 0 | 59.0 | 46 | 22 | 20 | 25 | 59 | 1 | 10 |
| Jose Alvarez* | Min | mr | 30 | 5.34 | 6 | 5 | 1 | 54 | 0 | 0 | 0 | 57.1 | 59 | 35 | 34 | 27 | 67 | 7 | 7 |
| Yadier Alvarez | Hou | sp | 23 | 2.25 | 1 | 0 | 0 | 5 | 0 | 0 | 0 | 4.0 | 1 | 1 | 1 | 2 | 5 | 1 | 0 |
| Adbert Alzolay | Oak | sp | 24 | 6.07 | 0 | 3 | 0 | 13 | 7 | 0 | 0 | 53.1 | 60 | 40 | 36 | 24 | 35 | 4 | 1 |
| Brett Anderson* | Sea | sp | 31 | 3.85 | 6 | 10 | 0 | 48 | 34 | 0 | 0 | 217.1 | 213 | 107 | 93 | 62 | 149 | 25 | 22 |
| Ian Anderson | Tam | sp | 21 | 4.69 | 6 | 16 | 0 | 32 | 32 | 0 | 0 | 165.0 | 146 | 96 | 86 | 94 | 156 | 28 | 16 |
| Justin Anderson | Tex | mr | 26 | 0.00 | 0 | 1 | 1 | 3 | 0 | 0 | 0 | 3.0 | 2 | 1 | 0 | 2 | 3 | 0 | 0 |
| Nick Anderson | Tex | mr | 28 | 5.19 | 7 | 3 | 8 | 76 | 0 | 0 | 0 | 85.0 | 92 | 54 | 49 | 40 | 90 | 14 | 11 |
| Shaun Anderson | SF | sp | 24 | 3.16 | 4 | 1 | 0 | 14 | 10 | 0 | 0 | 62.2 | 61 | 22 | 22 | 23 | 51 | 6 | 7 |
| Tanner Anderson | Mil | mr | 26 | 4.98 | 4 | 8 | 0 | 20 | 20 | 0 | 0 | 115.2 | 123 | 69 | 64 | 40 | 71 | 14 | 17 |
| Tyler Anderson* | Bos | sp | 29 | 2.43 | 3 | 0 | 0 | 6 | 6 | 0 | 0 | 37.0 | 27 | 11 | 10 | 9 | 39 | 6 | 5 |
| Victor Arano | Tex | mr | 24 | 0.00 | 0 | 0 | 1 | 11 | 0 | 0 | 0 | 13.0 | 9 | 1 | 0 | 3 | 11 | 0 | 1 |
| Chris Archer | SD | sp | 30 | 4.76 | 5 | 12 | 0 | 27 | 27 | 0 | 0 | 140.0 | 155 | 80 | 74 | 56 | 148 | 17 | 7 |
| Rogelio Armenteros | Sea | sp | 25 | 4.50 | 5 | 10 | 2 | 40 | 20 | 0 | 0 | 136.0 | 121 | 73 | 68 | 67 | 131 | 14 | 11 |
| Shawn Armstrong | | mr | 28 | 2.88 | 4 | 2 | 3 | 46 | 0 | 0 | 0 | 65.2 | 47 | 21 | 21 | 25 | 76 | 7 | 6 |
| Jake Arrieta | Min | sp | 33 | 4.22 | 7 | 8 | 0 | 25 | 25 | 0 | 0 | 136.1 | 116 | 69 | 64 | 56 | 127 | 16 | 7 |
| Luis Avilan* | | mr | 29 | 2.55 | 0 | 0 | 0 | 16 | 0 | 0 | 0 | 17.2 | 20 | 6 | 5 | 5 | 21 | 1 | 2 |
| Michel Baez | Tex | sp | 23 | 7.64 | 3 | 5 | 0 | 20 | 11 | 0 | 0 | 66.0 | 80 | 63 | 56 | 39 | 58 | 13 | 2 |
| Pedro Baez | Min | mr | 31 | 3.34 | 3 | 4 | 2 | 69 | 0 | 0 | 0 | 91.2 | 80 | 36 | 34 | 20 | 90 | 11 | 7 |
| Anthony Banda* | Det | sp | 25 | 0.64 | 5 | 0 | 1 | 7 | 4 | 0 | 0 | 28.1 | 15 | 3 | 2 | 3 | 29 | 1 | 1 |
| Manny Banuelos* | ChA | sp | 28 | 5.45 | 0 | 0 | 0 | 29 | 0 | 0 | 0 | 34.2 | 39 | 24 | 21 | 13 | 30 | 3 | 6 |
| Jacob Barnes | Tor | mr | 29 | 2.61 | 8 | 5 | 5 | 68 | 0 | 0 | 0 | 86.1 | 68 | 29 | 25 | 41 | 94 | 3 | 3 |
| Matt Barnes | Det | mr | 29 | 4.50 | 6 | 2 | 2 | 32 | 0 | 0 | 0 | 40.0 | 33 | 21 | 20 | 22 | 51 | 8 | 4 |
| Tony Barnette | Mil | mr | 35 | 2.15 | 4 | 0 | 0 | 28 | 0 | 0 | 0 | 37.2 | 30 | 11 | 9 | 11 | 34 | 2 | 6 |
| Kyle Barraclough | Was | mr | 29 | 0.00 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 2.0 | 1 | 0 | 0 | 2 | 1 | 0 | 0 |
| Jaime Barria | Cle | sp | 22 | 4.70 | 11 | 13 | 0 | 38 | 32 | 0 | 0 | 172.1 | 180 | 97 | 90 | 44 | 143 | 26 | 15 |
| Chris Bassitt | Mil | sp | 30 | 4.76 | 2 | 3 | 0 | 13 | 12 | 0 | 0 | 68.0 | 76 | 40 | 36 | 28 | 55 | 9 | 9 |
| Trevor Bauer | | sp | 28 | 2.93 | 15 | 6 | 0 | 35 | 34 | 3 | 0 | 233.2 | 181 | 81 | 76 | 69 | 254 | 20 | 9 |
| Gerson Bautista | Cin | mr | 24 | 3.06 | 2 | 3 | 7 | 41 | 0 | 0 | 0 | 50.0 | 44 | 17 | 17 | 19 | 48 | 4 | 3 |
| Cam Bedrosian | Tam | mr | 27 | 3.79 | 1 | 3 | 4 | 43 | 0 | 0 | 0 | 54.2 | 58 | 24 | 23 | 16 | 59 | 7 | 5 |
| Tyler Beede | NYA | sp | 26 | 2.84 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 6.1 | 7 | 2 | 2 | 0 | 5 | 0 | 1 |
| Jalen Beeks* | LAN | sp | 25 | 4.70 | 4 | 16 | 0 | 32 | 32 | 0 | 0 | 180.0 | 155 | 99 | 94 | 71 | 195 | 26 | 11 |
| Travis Bergen* | ChA | mr | 25 | 8.05 | 0 | 2 | 3 | 18 | 0 | 0 | 0 | 19.0 | 21 | 19 | 17 | 12 | 18 | 6 | 4 |
| Jose Berrios | Det | sp | 25 | 2.77 | 14 | 6 | 0 | 29 | 29 | 0 | 0 | 179.0 | 136 | 63 | 55 | 41 | 199 | 23 | 6 |
| Trevor Bettencourt | Mia | mr | 24 | 5.23 | 4 | 1 | 0 | 37 | 0 | 0 | 0 | 51.2 | 50 | 32 | 30 | 23 | 57 | 6 | 5 |
| Chad Bettis | LAA | sp | 30 | 4.22 | 0 | 0 | 0 | 2 | 2 | 0 | 0 | 10.2 | 5 | 6 | 5 | 8 | 5 | 2 | 1 |
| Jesse Biddle* | Col | mr | 27 | 4.55 | 0 | 1 | 2 | 30 | 0 | 0 | 0 | 31.2 | 28 | 16 | 16 | 9 | 33 | 3 | 5 |
| Shane Bieber | KC | sp | 24 | 2.32 | 15 | 5 | 0 | 33 | 33 | 0 | 0 | 221.0 | 185 | 67 | 57 | 39 | 168 | 16 | 16 |
| Brandon Bielak | Ari | sp | 23 | 4.76 | 0 | 1 | 1 | 22 | 0 | 0 | 0 | 22.2 | 22 | 14 | 12 | 13 | 20 | 2 | 2 |
| Ray Black | NYN | mr | 29 | 3.67 | 3 | 0 | 2 | 43 | 0 | 0 | 0 | 54.0 | 38 | 26 | 22 | 35 | 85 | 7 | 4 |
| Richard Bleier* | ChA | mr | 32 | 3.32 | 3 | 1 | 1 | 32 | 0 | 0 | 0 | 43.1 | 44 | 16 | 16 | 8 | 26 | 4 | 4 |
| Jerry Blevins* | Sea | mr | 35 | 5.32 | 5 | 5 | 3 | 71 | 0 | 0 | 0 | 71.0 | 77 | 51 | 42 | 39 | 71 | 9 | 4 |
| Ben Bowden* | Oak | mr | 24 | 5.16 | 2 | 4 | 3 | 57 | 0 | 0 | 0 | 59.1 | 63 | 40 | 34 | 47 | 56 | 11 | 9 |
| Matthew Bowman | ChN | mr | 28 | 3.71 | 9 | 6 | 3 | 55 | 0 | 0 | 0 | 70.1 | 67 | 33 | 29 | 17 | 69 | 11 | 10 |
| Matt Boyd* | | sp | 28 | 3.01 | 8 | 11 | 1 | 35 | 30 | 0 | 0 | 179.1 | 150 | 71 | 60 | 42 | 182 | 14 | 8 |
| Brad Brach | SD | cl | 33 | 3.71 | 1 | 8 | 31 | 61 | 0 | 0 | 0 | 60.2 | 68 | 26 | 25 | 27 | 65 | 6 | 9 |
| Archie Bradley | | mr | 26 | 4.22 | 4 | 3 | 2 | 68 | 0 | 0 | 0 | 85.1 | 86 | 44 | 40 | 32 | 79 | 11 | 7 |
| Ryan Brasier | Mil | mr | 31 | 4.33 | 3 | 5 | 19 | 63 | 0 | 0 | 0 | 72.2 | 86 | 44 | 35 | 22 | 55 | 8 | 10 |
| Steven Brault* | Cle | mr | 27 | 5.50 | 0 | 3 | 0 | 9 | 6 | 0 | 0 | 36.0 | 37 | 24 | 22 | 15 | 34 | 2 | 3 |
| John Brebbia | Min | mr | 29 | 2.49 | 6 | 4 | 5 | 69 | 0 | 0 | 0 | 105.0 | 69 | 33 | 29 | 18 | 134 | 12 | 5 |
| Brandon Brennan | ChN | mr | 27 | 2.85 | 2 | 0 | 1 | 33 | 0 | 0 | 0 | 47.1 | 34 | 16 | 15 | 25 | 38 | 0 | 5 |
| Colten Brewer | Cle | mr | 26 | 1.53 | 0 | 0 | 1 | 15 | 0 | 0 | 0 | 17.2 | 17 | 3 | 3 | 9 | 17 | 0 | 6 |
| Zack Britton* | NYA | cl | 31 | 4.36 | 3 | 4 | 2 | 51 | 0 | 0 | 0 | 64.0 | 61 | 32 | 31 | 24 | 63 | 5 | 7 |
| Walker Buehler | Cle | sp | 24 | 5.46 | 3 | 14 | 0 | 28 | 28 | 0 | 0 | 143.1 | 144 | 96 | 87 | 48 | 166 | 25 | 7 |
| Madison Bumgarner* | Mia | sp | 29 | 3.24 | 8 | 8 | 0 | 35 | 35 | 0 | 0 | 202.2 | 163 | 82 | 73 | 63 | 211 | 22 | 10 |
| Aaron Bummer* | LAA | mr | 25 | 1.62 | 4 | 5 | 5 | 50 | 0 | 0 | 0 | 61.0 | 48 | 13 | 11 | 19 | 52 | 4 | 13 |
| Dylan Bundy | LAA | sp | 26 | 3.36 | 15 | 6 | 0 | 31 | 31 | 0 | 0 | 184.2 | 154 | 76 | 69 | 49 | 185 | 24 | 12 |
| Brock Burke* | ChN | sp | 22 | 5.93 | 0 | 1 | 0 | 5 | 2 | 0 | 0 | 13.2 | 16 | 10 | 9 | 3 | 15 | 5 | 0 |
| Corbin Burnes | Ari | mr | 24 | 6.02 | 1 | 6 | 8 | 61 | 0 | 0 | 0 | 64.1 | 80 | 47 | 43 | 20 | 56 | 16 | 10 |
| Matt Bush | SF | mr | 33 | 2.82 | 5 | 3 | 0 | 61 | 0 | 0 | 0 | 60.2 | 54 | 23 | 19 | 21 | 63 | 5 | 2 |
| Ty Buttrey | Ari | mr | 26 | 3.62 | 5 | 4 | 7 | 80 | 0 | 0 | 0 | 87.0 | 82 | 38 | 35 | 45 | 95 | 6 | 8 |
| Genesis Cabrera* | Ari | sp | 22 | 7.71 | 2 | 3 | 1 | 14 | 1 | 0 | 0 | 16.1 | 20 | 15 | 14 | 10 | 17 | 2 | 2 |
| Trevor Cahill | | sp | 31 | 4.77 | 3 | 6 | 2 | 26 | 9 | 0 | 0 | 71.2 | 73 | 43 | 38 | 28 | 58 | 8 | 9 |
| Griffin Canning | Tam | sp | 23 | 5.49 | 3 | 11 | 0 | 22 | 22 | 0 | 0 | 119.2 | 119 | 73 | 73 | 44 | 97 | 17 | 10 |
| Shane Carle | Pit | mr | 27 | 9.00 | 0 | 1 | 0 | 3 | 0 | 0 | 0 | 3.0 | 3 | 3 | 3 | 2 | 2 | 0 | 0 |
| Carlos Carrasco | Was | sp | 32 | 3.58 | 7 | 3 | 0 | 13 | 13 | 0 | 0 | 88.0 | 84 | 37 | 35 | 17 | 94 | 15 | 3 |
| Cody Carroll | NYN | mr | 26 | 3.32 | 1 | 2 | 2 | 17 | 0 | 0 | 0 | 21.2 | 20 | 8 | 8 | 11 | 23 | 2 | 2 |
| Diego Castillo | LAN | mr | 25 | 2.45 | 0 | 0 | 0 | 25 | 0 | 0 | 0 | 25.2 | 17 | 10 | 7 | 12 | 31 | 0 | 1 |
| Luis Castillo | | sp | 26 | 3.42 | 9 | 7 | 0 | 31 | 31 | 0 | 0 | 189.1 | 170 | 76 | 72 | 48 | 195 | 26 | 13 |
| Dylan Cease | Mil | sp | 23 | 3.51 | 7 | 6 | 0 | 23 | 23 | 0 | 0 | 123.0 | 94 | 61 | 48 | 59 | 119 | 18 | 11 |
| Xavier Cedeno* | Pit | mr | 32 | 2.02 | 3 | 0 | 0 | 18 | 0 | 0 | 0 | 13.1 | 11 | 3 | 3 | 11 | 14 | 0 | 2 |
| Luis Cessa | | sp | 27 | 4.42 | 1 | 1 | 0 | 26 | 0 | 0 | 0 | 36.2 | 36 | 22 | 18 | 9 | 27 | 5 | 6 |
| Jhoulys Chacin | Det | sp | 31 | 3.02 | 11 | 3 | 0 | 23 | 23 | 0 | 0 | 134.0 | 103 | 51 | 45 | 55 | 119 | 16 | 13 |
| Andrew Chafin* | | mr | 29 | 4.54 | 3 | 2 | 2 | 31 | 0 | 0 | 0 | 33.2 | 30 | 18 | 17 | 12 | 42 | 5 | 2 |
| Aroldis Chapman* | | cl | 31 | 4.78 | 2 | 7 | 22 | 51 | 0 | 0 | 0 | 58.1 | 52 | 31 | 31 | 26 | 93 | 9 | 1 |
| JT Chargois | LAN | mr | 28 | 4.97 | 0 | 0 | 3 | 28 | 0 | 0 | 0 | 29.0 | 25 | 23 | 16 | 17 | 39 | 5 | 1 |
| Jesse Chavez | StL | mr | 35 | 2.92 | 7 | 8 | 8 | 102 | 0 | 0 | 0 | 132.2 | 101 | 45 | 43 | 35 | 121 | 13 | 18 |
| Yonny Chirinos | ChN | sp | 25 | 5.22 | 4 | 3 | 0 | 8 | 8 | 0 | 0 | 50.0 | 57 | 31 | 29 | 13 | 35 | 11 | 6 |
| Adam Cimber | LAA | mr | 28 | 2.82 | 0 | 0 | 5 | 47 | 0 | 0 | 0 | 70.1 | 62 | 25 | 22 | 10 | 49 | 9 | 10 |
| Tony Cingrani* | Hou | mr | 29 | 0.00 | 0 | 0 | 0 | 6 | 0 | 0 | 0 | 5.2 | 2 | 0 | 0 | 2 | 9 | 0 | 0 |
| Steve Cishek | Min | mr | 33 | 2.97 | 5 | 4 | 2 | 52 | 0 | 0 | 0 | 72.2 | 59 | 28 | 24 | 25 | 78 | 8 | 6 |
| Aaron Civale | Was | sp | 24 | 2.80 | 2 | 2 | 1 | 30 | 0 | 0 | 0 | 61.0 | 48 | 23 | 19 | 10 | 38 | 8 | 5 |
| Alex Claudio* | | mr | 27 | 4.62 | 4 | 2 | 4 | 60 | 0 | 0 | 0 | 74.0 | 95 | 42 | 38 | 23 | 63 | 3 | 6 |
| Michael Clevinger | Bos | sp | 28 | 4.36 | 6 | 6 | 0 | 19 | 19 | 0 | 0 | 107.1 | 94 | 54 | 52 | 49 | 118 | 16 | 3 |
| Tyler Clippard | Bal | mr | 34 | 3.57 | 5 | 3 | 3 | 76 | 0 | 0 | 0 | 80.2 | 71 | 35 | 32 | 26 | 89 | 15 | 2 |
| Corbin Clouse* | Cle | mr | 24 | 8.27 | 0 | 4 | 1 | 12 | 0 | 0 | 0 | 16.1 | 21 | 15 | 15 | 6 | 21 | 3 | 1 |
| Gerrit Cole | LAA | sp | 28 | 3.80 | 18 | 9 | 0 | 33 | 33 | 0 | 0 | 201.1 | 171 | 87 | 85 | 50 | 232 | 19 | 7 |
| Taylor Cole | ChN | mr | 29 | 3.88 | 2 | 3 | 2 | 46 | 0 | 0 | 0 | 62.2 | 57 | 28 | 27 | 21 | 78 | 10 | 8 |
| Alex Colome | | cl | 30 | 3.32 | 7 | 4 | 6 | 57 | 0 | 0 | 0 | 62.1 | 61 | 26 | 23 | 21 | 69 | 4 | 7 |
| Patrick Corbin* | Bal | sp | 29 | 3.67 | 8 | 11 | 0 | 33 | 33 | 0 | 0 | 198.2 | 158 | 85 | 81 | 56 | 226 | 28 | 12 |
| Nestor Cortes* | Tam | sp | 24 | 5.18 | 3 | 5 | 1 | 61 | 0 | 0 | 0 | 74.2 | 72 | 45 | 43 | 39 | 52 | 10 | 12 |
| Kyle Crick | | mr | 26 | 3.57 | 6 | 1 | 6 | 48 | 0 | 0 | 0 | 53.0 | 46 | 21 | 21 | 32 | 56 | 5 | 2 |
| Kyle Crockett* | Min | mr | 27 | 2.33 | 3 | 4 | 3 | 50 | 0 | 0 | 0 | 58.0 | 51 | 17 | 15 | 9 | 51 | 3 | 5 |
| Yu Darvish | NYA | sp | 32 | 4.23 | 10 | 12 | 0 | 32 | 32 | 0 | 0 | 183.0 | 169 | 93 | 86 | 67 | 203 | 23 | 7 |
| Zach Davies | ChA | sp | 26 | 5.20 | 4 | 7 | 0 | 17 | 17 | 0 | 0 | 97.0 | 97 | 59 | 56 | 33 | 71 | 16 | 11 |
| Austin Davis* | | mr | 26 | 2.70 | 5 | 4 | 3 | 62 | 0 | 0 | 0 | 73.1 | 61 | 29 | 22 | 27 | 88 | 7 | 9 |
| Wade Davis | Det | cl | 33 | 1.74 | 2 | 3 | 27 | 53 | 0 | 0 | 0 | 62.0 | 38 | 12 | 12 | 26 | 77 | 3 | 3 |
| Grant Dayton* | KC | mr | 31 | 3.89 | 1 | 3 | 0 | 21 | 0 | 0 | 0 | 34.2 | 31 | 16 | 15 | 16 | 46 | 7 | 2 |
| Enyel de los Santos | Oak | sp | 23 | 4.24 | 4 | 5 | 4 | 59 | 1 | 0 | 0 | 76.1 | 77 | 42 | 36 | 41 | 70 | 9 | 8 |
| Dean Deetz | StL | mr | 25 | 5.28 | 3 | 3 | 1 | 15 | 11 | 0 | 0 | 61.1 | 52 | 38 | 36 | 34 | 69 | 6 | 4 |
| Jacob deGrom | Tor | sp | 31 | 3.14 | 19 | 9 | 0 | 34 | 34 | 4 | 1 | 229.1 | 182 | 85 | 80 | 59 | 280 | 26 | 9 |
| Randall Delgado | Mil | mr | 29 | 8.44 | 0 | 3 | 0 | 26 | 0 | 0 | 0 | 32.0 | 40 | 31 | 30 | 25 | 24 | 4 | 3 |
| Anthony DeSclafani | Ari | sp | 29 | 4.34 | 9 | 11 | 0 | 32 | 30 | 0 | 0 | 174.0 | 155 | 99 | 84 | 43 | 162 | 25 | 13 |
| Chris Devenski | Det | mr | 28 | 3.59 | 1 | 7 | 12 | 39 | 3 | 0 | 0 | 57.2 | 51 | 24 | 23 | 14 | 59 | 8 | 6 |
| Edwin Diaz | Cle | cl | 25 | 4.03 | 2 | 5 | 18 | 56 | 0 | 0 | 0 | 60.1 | 49 | 31 | 27 | 27 | 95 | 10 | 2 |
| Jumbo Diaz | NYN | mr | 35 | 5.35 | 1 | 5 | 5 | 67 | 0 | 0 | 0 | 75.2 | 86 | 50 | 45 | 46 | 79 | 12 | 8 |
| Miguel Diaz | Tex | mr | 24 | 5.40 | 0 | 1 | 1 | 5 | 0 | 0 | 0 | 5.0 | 7 | 3 | 3 | 7 | 6 | 1 | 0 |
| Phillip Diehl* | Bos | mr | 24 | 3.29 | 7 | 3 | 1 | 75 | 0 | 0 | 0 | 126.0 | 109 | 54 | 46 | 58 | 143 | 7 | 8 |
| Jake Diekman* | | mr | 32 | 2.43 | 4 | 2 | 4 | 35 | 0 | 0 | 0 | 33.1 | 22 | 12 | 9 | 16 | 45 | 1 | 5 |
| Kyle Dohy* | Hou | mr | 22 | 5.99 | 4 | 2 | 5 | 108 | 0 | 0 | 0 | 85.2 | 58 | 61 | 57 | 96 | 132 | 13 | 8 |
| Seranthony Dominguez | StL | cl | 24 | 2.72 | 3 | 0 | 15 | 35 | 0 | 0 | 0 | 36.1 | 24 | 13 | 11 | 16 | 50 | 2 | 2 |
| Sean Doolittle* | | cl | 32 | 2.18 | 10 | 3 | 16 | 88 | 0 | 0 | 0 | 99.0 | 64 | 29 | 24 | 13 | 121 | 14 | 3 |
| Oliver Drake | Mia | mr | 32 | 3.18 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 5.2 | 3 | 2 | 2 | 1 | 8 | 0 | 1 |
| Tyler Duffey | | mr | 28 | 3.33 | 1 | 2 | 0 | 15 | 0 | 0 | 0 | 27.0 | 24 | 13 | 10 | 7 | 25 | 1 | 4 |
| Danny Duffy* | SF | sp | 30 | 3.48 | 4 | 5 | 0 | 18 | 15 | 0 | 0 | 95.2 | 93 | 44 | 37 | 37 | 77 | 6 | 19 |
| Robert Dugger | Tam | sp | 23 | 4.56 | 0 | 0 | 0 | 17 | 0 | 0 | 0 | 23.2 | 31 | 12 | 12 | 8 | 21 | 4 | 4 |
| Zach Duke* | KC | mr | 36 | 3.90 | 1 | 2 | 2 | 33 | 0 | 0 | 0 | 27.2 | 24 | 12 | 12 | 16 | 27 | 1 | 3 |
| Justin Dunn | Ari | sp | 23 | 7.50 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 6.0 | 8 | 5 | 5 | 1 | 3 | 2 | 2 |
| Jon Duplantier | Col | sp | 24 | 4.03 | 3 | 3 | 0 | 10 | 10 | 0 | 0 | 51.1 | 47 | 25 | 23 | 21 | 46 | 7 | 5 |
| Sam Dyson | Tam | mr | 31 | 6.28 | 0 | 5 | 10 | 26 | 0 | 0 | 0 | 28.2 | 40 | 21 | 20 | 12 | 22 | 8 | 2 |
| Carl Edwards Jr. | | mr | 27 | 4.41 | 0 | 4 | 4 | 30 | 0 | 0 | 0 | 34.2 | 22 | 18 | 17 | 23 | 48 | 2 | 2 |
| Zach Eflin | Cle | sp | 25 | 4.15 | 4 | 11 | 0 | 27 | 27 | 0 | 0 | 154.0 | 161 | 81 | 71 | 39 | 133 | 17 | 11 |
| Jerad Eickhoff | LAA | sp | 28 | 2.71 | 9 | 4 | 0 | 17 | 17 | 0 | 0 | 99.2 | 95 | 31 | 30 | 30 | 107 | 12 | 7 |
| Roenis Elias* | Cle | mr | 30 | 4.30 | 0 | 3 | 0 | 28 | 0 | 0 | 0 | 46.0 | 47 | 26 | 22 | 25 | 32 | 6 | 9 |
| Seth Elledge | LAA | mr | 23 | 9.82 | 0 | 1 | 0 | 3 | 0 | 0 | 0 | 3.2 | 8 | 4 | 4 | 1 | 4 | 3 | 0 |
| Nathan Eovaldi | LAA | sp | 29 | 4.32 | 4 | 8 | 0 | 17 | 17 | 0 | 0 | 108.1 | 119 | 56 | 52 | 22 | 82 | 22 | 16 |
| Robbie Erlin* | | mr | 28 | 2.88 | 13 | 7 | 0 | 34 | 32 | 2 | 0 | 215.2 | 177 | 79 | 69 | 38 | 174 | 17 | 24 |
| Luis Escobar | Tor | sp | 23 | 5.40 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1.2 | 3 | 1 | 1 | 0 | 1 | 1 | 1 |
| Raynel Espinal | NYN | mr | 25 | 3.88 | 0 | 9 | 0 | 19 | 19 | 0 | 0 | 116.0 | 93 | 56 | 50 | 31 | 127 | 15 | 11 |
| Carlos Estevez | Min | mr | 26 | 3.18 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 5.2 | 5 | 2 | 2 | 2 | 6 | 1 | 0 |
| Tommy Eveld | Cle | mr | 25 | 3.72 | 1 | 1 | 3 | 24 | 0 | 0 | 0 | 29.0 | 21 | 13 | 12 | 13 | 30 | 2 | 2 |
| Alex Faedo | Hou | sp | 23 | 4.92 | 4 | 8 | 3 | 36 | 14 | 0 | 0 | 108.0 | 116 | 68 | 59 | 46 | 66 | 11 | 11 |
| Jeurys Familia | | cl | 29 | 4.91 | 2 | 4 | 4 | 42 | 0 | 0 | 0 | 51.1 | 55 | 28 | 28 | 22 | 61 | 4 | 3 |
| Jacob Faria | Tam | sp | 25 | 7.80 | 2 | 8 | 0 | 11 | 10 | 0 | 0 | 47.1 | 52 | 44 | 41 | 34 | 50 | 7 | 3 |
| Erick Fedde | Cle | sp | 26 | 4.45 | 1 | 1 | 0 | 53 | 1 | 0 | 0 | 66.2 | 69 | 37 | 33 | 26 | 63 | 12 | 7 |
| Michael Feliz | Oak | mr | 26 | 9.00 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1.0 | 2 | 1 | 1 | 0 | 1 | 1 | 0 |
| Caleb Ferguson* | Col | mr | 22 | 4.20 | 16 | 4 | 0 | 47 | 26 | 0 | 0 | 163.0 | 149 | 85 | 76 | 70 | 184 | 22 | 15 |
| Junior Fernandez | StL | mr | 22 | 9.95 | 0 | 2 | 1 | 7 | 0 | 0 | 0 | 6.1 | 7 | 7 | 7 | 6 | 5 | 1 | 1 |
| J.P. Feyereisen | Was | mr | 26 | 6.11 | 0 | 3 | 2 | 25 | 0 | 0 | 0 | 28.0 | 29 | 22 | 19 | 12 | 37 | 4 | 2 |
| Josh Fields | Phi | mr | 33 | 1.80 | 3 | 2 | 2 | 42 | 0 | 0 | 0 | 60.0 | 49 | 19 | 12 | 15 | 64 | 6 | 4 |
| Mike Fiers | | sp | 34 | 4.36 | 12 | 10 | 0 | 33 | 32 | 0 | 0 | 183.2 | 166 | 92 | 89 | 46 | 146 | 26 | 7 |
| Jack Flaherty | Bal | sp | 23 | 2.98 | 10 | 10 | 0 | 32 | 32 | 1 | 1 | 187.1 | 135 | 68 | 62 | 50 | 211 | 29 | 11 |
| Chris Flexen | Hou | sp | 24 | 6.23 | 1 | 0 | 0 | 5 | 0 | 0 | 0 | 4.1 | 5 | 3 | 3 | 1 | 6 | 0 | 1 |
| Dylan Floro | Cle | mr | 28 | 6.04 | 1 | 2 | 0 | 10 | 0 | 0 | 0 | 22.1 | 28 | 18 | 15 | 13 | 15 | 6 | 4 |
| Mike Foltynewicz | | sp | 27 | 4.41 | 7 | 9 | 0 | 26 | 25 | 0 | 0 | 145.0 | 137 | 77 | 71 | 43 | 141 | 30 | 11 |
| Wilmer Font | SF | sp | 29 | 3.95 | 8 | 2 | 5 | 72 | 0 | 0 | 0 | 84.1 | 84 | 44 | 37 | 17 | 83 | 10 | 5 |
| Kyle Freeland* | ChA | sp | 26 | 3.65 | 12 | 18 | 0 | 33 | 33 | 2 | 1 | 209.1 | 198 | 111 | 85 | 77 | 176 | 27 | 23 |
| Max Fried* | Ari | sp | 25 | 3.59 | 3 | 2 | 2 | 40 | 0 | 0 | 0 | 47.2 | 35 | 23 | 19 | 26 | 51 | 5 | 6 |
| Jace Fry* | Bos | mr | 25 | 5.28 | 6 | 2 | 2 | 37 | 0 | 0 | 0 | 46.0 | 43 | 29 | 27 | 25 | 51 | 5 | 4 |
| Paul Fry* | ChA | mr | 26 | 2.26 | 6 | 1 | 5 | 66 | 0 | 0 | 0 | 83.2 | 67 | 28 | 21 | 37 | 88 | 5 | 9 |
| Carson Fulmer | Hou | sp | 25 | 4.93 | 3 | 3 | 1 | 39 | 0 | 0 | 0 | 34.2 | 33 | 22 | 19 | 21 | 35 | 3 | 3 |
| Kyle Funkhouser | KC | sp | 25 | 5.31 | 4 | 1 | 0 | 27 | 0 | 0 | 0 | 42.1 | 37 | 28 | 25 | 25 | 33 | 4 | 2 |
| Drew Gagnon | LAA | sp | 29 | 4.61 | 4 | 1 | 0 | 8 | 8 | 0 | 0 | 41.0 | 35 | 22 | 21 | 14 | 34 | 7 | 3 |
| Giovanny Gallegos | SF | mr | 27 | 2.83 | 4 | 3 | 10 | 122 | 0 | 0 | 0 | 140.0 | 113 | 56 | 44 | 57 | 159 | 19 | 12 |
| Zac Gallen | Cin | sp | 23 | 5.59 | 3 | 7 | 0 | 11 | 11 | 0 | 0 | 58.0 | 63 | 39 | 36 | 15 | 49 | 12 | 4 |
| John Gant | Hou | sp | 26 | 3.74 | 9 | 10 | 0 | 34 | 33 | 0 | 0 | 192.1 | 166 | 89 | 80 | 83 | 169 | 19 | 14 |
| Edgar Garcia | Phi | mr | 22 | 18.00 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1.0 | 1 | 2 | 2 | 2 | 1 | 0 | 0 |
| Jarlin Garcia* | Cle | mr | 26 | 7.50 | 0 | 0 | 0 | 7 | 0 | 0 | 0 | 12.0 | 16 | 10 | 10 | 6 | 6 | 5 | 0 |
| Yimi Garcia | SD | mr | 28 | 3.00 | 2 | 3 | 5 | 52 | 0 | 0 | 0 | 66.0 | 53 | 24 | 22 | 18 | 68 | 8 | 4 |
| Amir Garrett* | Tex | mr | 27 | 5.98 | 0 | 2 | 3 | 58 | 0 | 0 | 0 | 64.2 | 72 | 50 | 43 | 32 | 84 | 8 | 4 |
| Kevin Gausman | | sp | 28 | 4.17 | 12 | 11 | 0 | 29 | 29 | 0 | 0 | 168.1 | 165 | 84 | 78 | 46 | 147 | 19 | 9 |
| Cory Gearrin | Atl | mr | 33 | 5.11 | 3 | 1 | 4 | 38 | 0 | 0 | 0 | 37.0 | 37 | 23 | 21 | 18 | 32 | 2 | 4 |
| Domingo German | | sp | 26 | 4.86 | 3 | 5 | 0 | 12 | 11 | 1 | 1 | 63.0 | 62 | 38 | 34 | 31 | 60 | 10 | 8 |
| Ian Gibaut | ChN | mr | 25 | 4.15 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 4.1 | 4 | 2 | 2 | 2 | 7 | 0 | 0 |
| Kyle Gibson | Bos | sp | 31 | 2.57 | 14 | 10 | 0 | 33 | 32 | 1 | 1 | 213.2 | 163 | 69 | 61 | 79 | 184 | 24 | 21 |
| Ken Giles | Sea | cl | 28 | 3.69 | 2 | 3 | 19 | 78 | 0 | 0 | 0 | 90.1 | 81 | 42 | 37 | 30 | 116 | 4 | 6 |
| Kevin Ginkel | KC | mr | 25 | 2.35 | 4 | 3 | 2 | 63 | 0 | 0 | 0 | 76.2 | 55 | 20 | 20 | 31 | 73 | 8 | 9 |
| Lucas Giolito | Hou | sp | 24 | 3.94 | 3 | 0 | 0 | 6 | 4 | 1 | 0 | 29.2 | 23 | 15 | 13 | 15 | 24 | 3 | 4 |
| Mychal Givens | | mr | 29 | 4.24 | 2 | 1 | 3 | 36 | 0 | 0 | 0 | 51.0 | 43 | 25 | 24 | 22 | 56 | 5 | 9 |
| Tyler Glasnow | Oak | sp | 25 | 3.69 | 4 | 2 | 0 | 11 | 11 | 0 | 0 | 63.1 | 45 | 27 | 26 | 32 | 74 | 5 | 5 |
| Zack Godley | NYN | sp | 29 | 3.13 | 6 | 11 | 0 | 33 | 29 | 0 | 0 | 169.2 | 139 | 72 | 59 | 73 | 163 | 15 | 16 |
| Luiz Gohara* | Sea | sp | 22 | 8.13 | 1 | 4 | 0 | 13 | 5 | 0 | 0 | 31.0 | 38 | 32 | 28 | 19 | 31 | 8 | 3 |
| Austin Gomber* | StL | sp | 25 | 5.68 | 0 | 1 | 1 | 10 | 0 | 0 | 0 | 12.2 | 11 | 9 | 8 | 9 | 13 | 2 | 0 |
| Stephen Gonsalves* | KC | sp | 24 | 3.34 | 1 | 2 | 5 | 26 | 0 | 0 | 0 | 32.1 | 20 | 13 | 12 | 11 | 32 | 2 | 1 |
| Tony Gonsolin | Min | sp | 25 | 8.20 | 0 | 3 | 0 | 9 | 9 | 0 | 0 | 37.1 | 51 | 37 | 34 | 25 | 38 | 8 | 1 |
| Marco Gonzales* | StL | sp | 27 | 3.40 | 10 | 6 | 0 | 32 | 32 | 0 | 0 | 182.2 | 173 | 77 | 69 | 34 | 157 | 16 | 22 |
| Chi Chi Gonzalez | ChN | sp | 27 | 3.22 | 11 | 12 | 0 | 31 | 31 | 0 | 0 | 179.0 | 161 | 75 | 64 | 74 | 103 | 6 | 26 |
| Gio Gonzalez* | | sp | 33 | 3.86 | 7 | 6 | 0 | 22 | 22 | 0 | 0 | 121.1 | 103 | 56 | 52 | 51 | 122 | 18 | 8 |
| Nick Goody | | mr | 27 | 5.72 | 1 | 3 | 0 | 33 | 1 | 0 | 0 | 39.1 | 40 | 25 | 25 | 14 | 51 | 12 | 3 |
| Trevor Gott | Atl | mr | 26 | 1.86 | 6 | 1 | 11 | 51 | 0 | 0 | 0 | 63.0 | 43 | 14 | 13 | 31 | 58 | 2 | 4 |
| Matt Grace* | LAA | mr | 30 | 3.00 | 2 | 0 | 2 | 44 | 0 | 0 | 0 | 63.0 | 55 | 21 | 21 | 14 | 33 | 6 | 3 |
| Jon Gray | Phi | sp | 27 | 3.15 | 12 | 7 | 0 | 28 | 28 | 1 | 1 | 168.1 | 154 | 71 | 59 | 41 | 150 | 19 | 9 |
| Sonny Gray | SF | sp | 29 | 4.25 | 8 | 14 | 0 | 41 | 38 | 0 | 0 | 203.1 | 189 | 100 | 96 | 95 | 185 | 24 | 13 |
| Chad Green | ChN | mr | 28 | 2.31 | 5 | 1 | 33 | 62 | 0 | 0 | 0 | 74.0 | 48 | 19 | 19 | 23 | 82 | 8 | 6 |
| Shane Greene | Bal | cl | 30 | 3.14 | 1 | 1 | 5 | 12 | 0 | 0 | 0 | 14.1 | 13 | 5 | 5 | 5 | 12 | 3 | 0 |
| Luke Gregerson | Phi | mr | 35 | 1.77 | 1 | 0 | 0 | 12 | 0 | 0 | 0 | 20.1 | 13 | 4 | 4 | 4 | 24 | 1 | 2 |
| Zack Greinke | | sp | 35 | 2.91 | 16 | 9 | 0 | 33 | 32 | 3 | 0 | 219.2 | 165 | 74 | 71 | 48 | 206 | 34 | 8 |
| Robert Gsellman | Min | cl | 25 | 4.50 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 8.0 | 14 | 6 | 4 | 1 | 7 | 0 | 1 |
| Junior Guerra | Tam | sp | 34 | 4.39 | 2 | 0 | 1 | 66 | 0 | 0 | 0 | 82.0 | 74 | 44 | 40 | 33 | 71 | 8 | 5 |
| Tayron Guerrero | NYA | mr | 28 | 3.60 | 4 | 0 | 0 | 17 | 0 | 0 | 0 | 25.0 | 23 | 10 | 10 | 14 | 30 | 5 | 3 |
| Vladimir Gutierrez | Cin | sp | 23 | 3.16 | 2 | 1 | 0 | 6 | 5 | 0 | 0 | 31.1 | 29 | 14 | 11 | 16 | 29 | 0 | 1 |
| Jorge Guzman | NYA | sp | 23 | 9.00 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 5.0 | 6 | 5 | 5 | 6 | 2 | 1 | 0 |
| Josh Hader* | Oak | mr | 25 | 2.06 | 7 | 6 | 11 | 84 | 0 | 0 | 0 | 96.0 | 54 | 24 | 22 | 50 | 180 | 7 | 7 |
| Matt Hall* | ChN | mr | 25 | 8.36 | 1 | 0 | 0 | 8 | 0 | 0 | 0 | 14.0 | 19 | 14 | 13 | 7 | 15 | 3 | 2 |
| Cole Hamels* | | sp | 35 | 3.65 | 17 | 8 | 0 | 30 | 30 | 2 | 1 | 189.2 | 163 | 85 | 77 | 73 | 192 | 24 | 16 |
| Ian Hamilton | Tam | mr | 24 | 6.89 | 0 | 2 | 9 | 17 | 0 | 0 | 0 | 15.2 | 24 | 14 | 12 | 8 | 15 | 5 | 4 |
| Brad Hand* | SD | cl | 29 | 3.53 | 3 | 3 | 9 | 69 | 0 | 0 | 0 | 81.2 | 75 | 36 | 32 | 25 | 97 | 9 | 10 |
| Alec Hansen | KC | sp | 24 | 4.50 | 0 | 1 | 1 | 3 | 0 | 0 | 0 | 2.0 | 4 | 1 | 1 | 1 | 3 | 0 | 0 |
| J.A. Happ* | ChN | sp | 36 | 3.64 | 12 | 9 | 0 | 35 | 35 | 0 | 0 | 200.1 | 178 | 96 | 81 | 59 | 208 | 20 | 8 |
| Blaine Hardy* | Mil | mr | 32 | 3.30 | 8 | 12 | 0 | 33 | 33 | 0 | 0 | 199.1 | 160 | 79 | 73 | 54 | 171 | 15 | 10 |
| Ryne Harper | ChN | mr | 30 | 4.63 | 4 | 4 | 2 | 53 | 0 | 0 | 0 | 72.0 | 61 | 39 | 37 | 29 | 66 | 9 | 5 |
| Will Harris | Pit | mr | 34 | 3.19 | 5 | 2 | 2 | 84 | 0 | 0 | 0 | 84.2 | 81 | 31 | 30 | 19 | 78 | 5 | 8 |
| Donnie Hart* | Mil | mr | 28 | 5.35 | 2 | 10 | 3 | 64 | 0 | 0 | 0 | 79.0 | 82 | 50 | 47 | 36 | 50 | 5 | 4 |
| Hunter Harvey | | sp | 24 | 8.10 | 1 | 1 | 0 | 5 | 2 | 0 | 0 | 13.1 | 22 | 20 | 12 | 6 | 13 | 1 | 0 |
| Matt Harvey | Pit | sp | 30 | 5.23 | 4 | 4 | 0 | 16 | 12 | 0 | 0 | 65.1 | 81 | 46 | 38 | 17 | 43 | 5 | 6 |
| Andrew Heaney* | Phi | sp | 28 | 3.86 | 6 | 9 | 0 | 20 | 20 | 0 | 0 | 116.2 | 120 | 67 | 50 | 36 | 118 | 11 | 5 |
| Ben Heller | LAA | mr | 27 | 0.00 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 6.1 | 1 | 0 | 0 | 1 | 4 | 0 | 0 |
| Heath Hembree | SD | mr | 30 | 4.18 | 3 | 2 | 2 | 55 | 0 | 0 | 0 | 60.1 | 52 | 29 | 28 | 20 | 75 | 7 | 2 |
| Kyle Hendricks | | sp | 29 | 3.16 | 10 | 6 | 0 | 34 | 34 | 0 | 0 | 191.0 | 151 | 73 | 67 | 47 | 153 | 23 | 10 |
| Liam Hendriks | ChN | mr | 30 | 3.15 | 11 | 5 | 0 | 34 | 34 | 0 | 0 | 185.2 | 142 | 68 | 65 | 56 | 219 | 12 | 9 |
| Jimmy Herget | Col | mr | 25 | 4.29 | 1 | 0 | 5 | 30 | 0 | 0 | 0 | 35.2 | 33 | 19 | 17 | 12 | 42 | 3 | 3 |
| Darwinzon Hernandez* | Tor | sp | 22 | 5.06 | 0 | 0 | 0 | 6 | 2 | 0 | 0 | 10.2 | 7 | 6 | 6 | 8 | 9 | 3 | 0 |
| David Hernandez | Mil | mr | 34 | 3.81 | 8 | 2 | 3 | 60 | 0 | 0 | 0 | 82.2 | 86 | 41 | 35 | 32 | 73 | 5 | 9 |
| Elieser Hernandez | | mr | 24 | 5.27 | 1 | 1 | 2 | 22 | 0 | 0 | 0 | 27.1 | 33 | 19 | 16 | 12 | 11 | 7 | 1 |
| Felix Hernandez | Tor | sp | 33 | 1.80 | 1 | 0 | 0 | 4 | 4 | 1 | 0 | 30.0 | 20 | 8 | 6 | 3 | 25 | 1 | 3 |
| Jonathan Hernandez | Tor | sp | 22 | 2.45 | 1 | 0 | 0 | 2 | 1 | 0 | 0 | 7.1 | 7 | 2 | 2 | 4 | 11 | 1 | 0 |
| Kelvin Herrera | NYN | cl | 29 | 3.86 | 9 | 6 | 4 | 78 | 0 | 0 | 0 | 88.2 | 77 | 40 | 38 | 33 | 84 | 15 | 7 |
| Jordan Hicks | Min | mr | 22 | 1.81 | 3 | 3 | 1 | 34 | 0 | 0 | 0 | 44.2 | 30 | 14 | 9 | 24 | 43 | 1 | 5 |
| Rich Hill* | Pit | sp | 39 | 2.76 | 6 | 2 | 0 | 14 | 12 | 1 | 1 | 75.0 | 45 | 24 | 23 | 22 | 85 | 7 | 6 |
| Yoshihisa Hirano | LAN | mr | 35 | 3.80 | 3 | 2 | 2 | 59 | 0 | 0 | 0 | 71.0 | 72 | 31 | 30 | 18 | 73 | 11 | 8 |
| Jeff Hoffman | Sea | sp | 26 | 4.19 | 10 | 12 | 1 | 51 | 24 | 2 | 1 | 180.1 | 170 | 91 | 84 | 95 | 147 | 15 | 22 |
| Jonathan Holder | | mr | 26 | 2.48 | 4 | 2 | 2 | 42 | 0 | 0 | 0 | 61.2 | 62 | 19 | 17 | 17 | 56 | 4 | 5 |
| Greg Holland | ChA | cl | 33 | 2.04 | 1 | 0 | 0 | 13 | 0 | 0 | 0 | 17.2 | 12 | 4 | 4 | 11 | 16 | 1 | 3 |
| Grant Holmes | Cle | sp | 23 | 3.81 | 1 | 2 | 2 | 21 | 1 | 0 | 0 | 28.1 | 28 | 13 | 12 | 13 | 26 | 2 | 2 |
| J.J. Hoover | Bal | mr | 31 | 4.34 | 0 | 3 | 8 | 46 | 0 | 0 | 0 | 45.2 | 45 | 22 | 22 | 27 | 43 | 7 | 3 |
| Adrian Houser | Tex | sp | 26 | 7.09 | 2 | 3 | 0 | 13 | 6 | 0 | 0 | 39.1 | 51 | 35 | 31 | 17 | 32 | 8 | 6 |
| Brian Howard | | sp | 24 | 6.91 | 3 | 11 | 0 | 24 | 16 | 0 | 0 | 83.1 | 108 | 67 | 64 | 41 | 55 | 16 | 6 |
| James Hoyt | | mr | 32 | 4.42 | 3 | 3 | 12 | 35 | 0 | 0 | 0 | 38.2 | 43 | 20 | 19 | 11 | 46 | 7 | 6 |
| Dakota Hudson | | sp | 24 | 4.23 | 4 | 9 | 11 | 40 | 22 | 0 | 0 | 142.2 | 138 | 76 | 67 | 63 | 100 | 12 | 16 |
| Jared Hughes | Bos | mr | 33 | 2.09 | 4 | 3 | 33 | 60 | 0 | 0 | 0 | 69.0 | 52 | 24 | 16 | 22 | 48 | 5 | 9 |
| Danny Hultzen* | Tex | sp | 29 | 12.15 | 0 | 2 | 0 | 2 | 2 | 0 | 0 | 6.2 | 17 | 15 | 9 | 4 | 6 | 3 | 0 |
| Tommy Hunter | Phi | mr | 32 | 1.29 | 2 | 0 | 0 | 6 | 0 | 0 | 0 | 7.0 | 5 | 2 | 1 | 0 | 5 | 0 | 0 |
| Raisel Iglesias | Col | cl | 29 | 4.09 | 6 | 6 | 3 | 74 | 0 | 0 | 0 | 88.0 | 76 | 40 | 40 | 35 | 109 | 9 | 5 |
| Cole Irvin* | | sp | 25 | 3.70 | 0 | 4 | 0 | 27 | 5 | 0 | 0 | 58.1 | 58 | 30 | 24 | 16 | 33 | 5 | 3 |
| Luke Jackson | KC | mr | 27 | 2.84 | 3 | 3 | 7 | 62 | 0 | 0 | 0 | 79.1 | 57 | 30 | 25 | 34 | 80 | 4 | 4 |
| Josh James | ChN | sp | 26 | 2.70 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 3.1 | 3 | 1 | 1 | 0 | 6 | 1 | 0 |
| Kenley Jansen | | cl | 31 | 2.22 | 2 | 2 | 34 | 58 | 0 | 0 | 0 | 69.0 | 43 | 19 | 17 | 13 | 87 | 7 | 1 |
| Jeremy Jeffress | | cl | 31 | 2.52 | 3 | 2 | 18 | 41 | 0 | 0 | 0 | 50.0 | 46 | 19 | 14 | 14 | 57 | 6 | 10 |
| Dan Jennings* | | mr | 32 | 0.98 | 1 | 1 | 1 | 14 | 0 | 0 | 0 | 18.1 | 13 | 2 | 2 | 4 | 13 | 0 | 3 |
| Joe Jimenez | KC | mr | 24 | 2.61 | 4 | 8 | 31 | 66 | 0 | 0 | 0 | 72.1 | 49 | 22 | 21 | 23 | 89 | 4 | 3 |
| Brian Johnson* | Mil | sp | 28 | 9.00 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 3.0 | 7 | 5 | 3 | 4 | 1 | 1 | 0 |
| D.J. Johnson | ChA | mr | 29 | 3.31 | 0 | 2 | 2 | 22 | 0 | 0 | 0 | 32.2 | 25 | 15 | 12 | 12 | 37 | 7 | 3 |
| Tyler B. Johnson | ChA | mr | 23 | 2.55 | 0 | 1 | 1 | 11 | 0 | 0 | 0 | 17.2 | 14 | 6 | 5 | 7 | 21 | 1 | 2 |
| Jake Junis | LAN | sp | 26 | 3.40 | 11 | 14 | 0 | 33 | 33 | 0 | 0 | 211.2 | 216 | 95 | 80 | 29 | 190 | 28 | 12 |
| Tommy Kahnle | LAA | mr | 29 | 2.35 | 5 | 4 | 2 | 49 | 0 | 0 | 0 | 69.0 | 47 | 19 | 18 | 33 | 86 | 6 | 12 |
| Rob Kaminsky* | Bal | mr | 24 | 7.15 | 1 | 1 | 0 | 13 | 0 | 0 | 0 | 11.1 | 13 | 9 | 9 | 9 | 15 | 0 | 1 |
| James Karinchak | Tex | mr | 23 | 4.69 | 5 | 2 | 1 | 44 | 1 | 0 | 0 | 48.0 | 40 | 25 | 25 | 33 | 57 | 6 | 3 |
| Anthony Kay* | | sp | 24 | 6.26 | 4 | 5 | 1 | 18 | 13 | 0 | 0 | 73.1 | 84 | 55 | 51 | 38 | 67 | 7 | 7 |
| Keone Kela | | cl | 26 | 2.33 | 3 | 1 | 3 | 37 | 0 | 0 | 0 | 54.0 | 32 | 14 | 14 | 15 | 70 | 4 | 5 |
| Brad Keller | ChA | sp | 23 | 4.52 | 8 | 16 | 0 | 33 | 33 | 1 | 1 | 191.0 | 186 | 106 | 96 | 63 | 109 | 20 | 21 |
| Brian Keller | Tex | sp | 25 | 1.80 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 5.0 | 7 | 5 | 1 | 1 | 3 | 2 | 0 |
| Kyle Keller | NYN | mr | 26 | 5.15 | 0 | 4 | 4 | 69 | 0 | 0 | 0 | 80.1 | 73 | 51 | 46 | 42 | 90 | 8 | 11 |
| Mitch Keller | NYN | sp | 23 | 7.20 | 1 | 0 | 0 | 4 | 0 | 0 | 0 | 5.0 | 7 | 4 | 4 | 1 | 5 | 1 | 0 |
| Shawn Kelley | Pit | mr | 35 | 2.08 | 2 | 0 | 6 | 45 | 0 | 0 | 0 | 43.1 | 36 | 10 | 10 | 7 | 46 | 3 | 1 |
| Joe Kelly | Mil | mr | 31 | 3.24 | 9 | 4 | 2 | 66 | 0 | 0 | 0 | 72.1 | 64 | 26 | 26 | 34 | 86 | 3 | 7 |
| Merrill Kelly | Bos | sp | 30 | 3.88 | 5 | 3 | 0 | 17 | 11 | 0 | 0 | 67.1 | 69 | 30 | 29 | 18 | 64 | 6 | 4 |
| Ian Kennedy | | sp | 34 | 5.59 | 4 | 11 | 0 | 28 | 25 | 0 | 0 | 141.2 | 152 | 96 | 88 | 37 | 127 | 34 | 7 |
| Clayton Kershaw* | NYA | sp | 31 | 3.11 | 12 | 7 | 0 | 28 | 28 | 1 | 0 | 173.2 | 150 | 69 | 60 | 36 | 199 | 17 | 7 |
| Dallas Keuchel* | ChN | sp | 31 | 3.42 | 7 | 9 | 0 | 22 | 22 | 4 | 2 | 139.2 | 124 | 65 | 53 | 45 | 120 | 13 | 15 |
| Yusei Kikuchi* | ChA | sp | 28 | 4.67 | 8 | 14 | 0 | 33 | 33 | 0 | 0 | 187.0 | 164 | 106 | 97 | 79 | 172 | 20 | 21 |
| Craig Kimbrel | Tor | cl | 31 | 5.68 | 2 | 3 | 8 | 25 | 0 | 0 | 0 | 31.2 | 30 | 22 | 20 | 17 | 55 | 9 | 0 |
| Michael King | Tex | sp | 24 | 3.38 | 6 | 1 | 0 | 11 | 10 | 0 | 0 | 72.0 | 54 | 28 | 27 | 12 | 55 | 10 | 8 |
| Nick Kingham | Hou | sp | 27 | 5.70 | 5 | 4 | 6 | 87 | 10 | 0 | 0 | 131.0 | 148 | 86 | 83 | 25 | 105 | 28 | 7 |
| Brandon Kintzler | Col | mr | 34 | 4.08 | 2 | 3 | 1 | 29 | 0 | 0 | 0 | 35.1 | 39 | 16 | 16 | 11 | 24 | 3 | 8 |
| Andrew Kittredge | | mr | 29 | 3.97 | 1 | 0 | 0 | 4 | 1 | 0 | 0 | 11.1 | 12 | 7 | 5 | 2 | 9 | 1 | 2 |
| Corey Kluber | SF | sp | 33 | 3.53 | 4 | 2 | 0 | 16 | 14 | 1 | 0 | 94.1 | 84 | 38 | 37 | 14 | 112 | 12 | 3 |
| Adam Kolarek* | Det | mr | 30 | 4.15 | 3 | 2 | 1 | 17 | 0 | 0 | 0 | 26.0 | 28 | 12 | 12 | 15 | 25 | 1 | 5 |
| Michael Kopech | SF | sp | 23 | 2.70 | 1 | 0 | 1 | 3 | 2 | 0 | 0 | 13.1 | 9 | 4 | 4 | 7 | 12 | 0 | 1 |
| Dean Kremer | Cin | sp | 23 | 7.57 | 0 | 5 | 0 | 6 | 5 | 0 | 0 | 27.1 | 29 | 25 | 23 | 14 | 31 | 5 | 2 |
| Brady Lail | Hou | mr | 25 | 5.17 | 8 | 7 | 4 | 81 | 1 | 0 | 0 | 78.1 | 92 | 50 | 45 | 41 | 57 | 10 | 4 |
| Peter Lambert | ChA | sp | 22 | 3.00 | 5 | 2 | 0 | 8 | 8 | 1 | 1 | 54.0 | 43 | 19 | 18 | 9 | 32 | 5 | 7 |
| Dinelson Lamet | KC | sp | 26 | 2.50 | 6 | 4 | 0 | 14 | 14 | 0 | 0 | 82.2 | 58 | 28 | 23 | 36 | 86 | 5 | 10 |
| Eric Lauer* | | sp | 24 | 5.00 | 8 | 9 | 0 | 34 | 25 | 0 | 0 | 149.1 | 150 | 87 | 83 | 63 | 150 | 24 | 9 |
| Derek Law | Cin | mr | 28 | 4.61 | 2 | 3 | 0 | 48 | 0 | 0 | 0 | 52.2 | 58 | 28 | 27 | 25 | 42 | 7 | 5 |
| Tommy Layne* | NYA | mr | 34 | 4.15 | 1 | 1 | 0 | 18 | 0 | 0 | 0 | 17.1 | 17 | 9 | 8 | 9 | 16 | 0 | 1 |
| Mike Leake | Cin | sp | 31 | 3.95 | 13 | 10 | 0 | 28 | 28 | 1 | 1 | 182.1 | 201 | 93 | 80 | 29 | 120 | 15 | 16 |
| Wade LeBlanc* | Pit | sp | 34 | 4.84 | 6 | 3 | 0 | 14 | 10 | 0 | 0 | 57.2 | 61 | 35 | 31 | 15 | 45 | 12 | 2 |
| Jose Leclerc | LAA | mr | 25 | 1.15 | 7 | 3 | 32 | 55 | 0 | 0 | 0 | 70.2 | 39 | 16 | 9 | 25 | 94 | 1 | 6 |
| Luke Leftwich | Det | mr | 25 | 2.02 | 8 | 1 | 2 | 48 | 1 | 0 | 0 | 80.1 | 52 | 20 | 18 | 22 | 71 | 1 | 7 |
| Dominic Leone | Tam | mr | 27 | 4.37 | 9 | 3 | 0 | 57 | 0 | 0 | 0 | 82.1 | 70 | 40 | 40 | 29 | 88 | 11 | 2 |
| Jon Lester* | | sp | 35 | 4.05 | 9 | 9 | 0 | 30 | 30 | 1 | 0 | 177.2 | 168 | 88 | 80 | 49 | 154 | 26 | 13 |
| Zack Littell | Tam | sp | 23 | 5.74 | 2 | 3 | 0 | 36 | 0 | 0 | 0 | 42.1 | 39 | 31 | 27 | 14 | 36 | 6 | 4 |
| Ben Lively | Was | sp | 27 | 5.10 | 6 | 6 | 0 | 23 | 21 | 0 | 0 | 121.2 | 135 | 70 | 69 | 46 | 94 | 14 | 10 |
| Jonathan Loaisiga | Ari | sp | 24 | 3.70 | 2 | 4 | 0 | 22 | 13 | 0 | 0 | 82.2 | 82 | 41 | 34 | 21 | 81 | 12 | 4 |
| Jorge Lopez | SD | mr | 26 | 0.00 | 1 | 0 | 0 | 4 | 0 | 0 | 0 | 7.0 | 2 | 0 | 0 | 1 | 5 | 0 | 0 |
| Pablo Lopez | Tex | sp | 23 | 4.65 | 5 | 7 | 0 | 16 | 16 | 0 | 0 | 98.2 | 96 | 58 | 51 | 25 | 81 | 10 | 3 |
| Reynaldo Lopez | Bos | sp | 25 | 4.04 | 2 | 3 | 0 | 7 | 7 | 0 | 0 | 42.1 | 34 | 22 | 19 | 20 | 33 | 5 | 0 |
| Yoan Lopez | | mr | 26 | 5.63 | 9 | 7 | 6 | 73 | 0 | 0 | 0 | 84.2 | 87 | 56 | 53 | 35 | 100 | 13 | 5 |
| Michael Lorenzen | Cin | mr | 27 | 4.43 | 3 | 5 | 6 | 64 | 0 | 0 | 0 | 91.1 | 92 | 48 | 45 | 39 | 74 | 4 | 9 |
| Aaron Loup* | Cin | mr | 31 | 3.38 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 5.1 | 4 | 2 | 2 | 0 | 9 | 0 | 0 |
| Richard Lovelady* | Cle | mr | 23 | 4.30 | 6 | 10 | 2 | 72 | 0 | 0 | 0 | 111.0 | 114 | 62 | 53 | 34 | 95 | 8 | 14 |
| Joey Lucchesi* | Ari | sp | 26 | 4.36 | 11 | 14 | 0 | 31 | 31 | 0 | 0 | 177.2 | 162 | 92 | 86 | 74 | 188 | 24 | 14 |
| Seth Lugo | NYN | mr | 29 | 5.33 | 8 | 17 | 0 | 32 | 32 | 0 | 0 | 182.1 | 213 | 120 | 108 | 52 | 177 | 32 | 11 |
| Jesus Luzardo* | | sp | 21 | 2.40 | 2 | 4 | 2 | 16 | 6 | 0 | 0 | 48.2 | 42 | 19 | 13 | 20 | 39 | 5 | 6 |
| Jordan Lyles | Phi | mr | 28 | 2.67 | 11 | 2 | 0 | 18 | 18 | 0 | 0 | 108.0 | 87 | 35 | 32 | 52 | 88 | 10 | 12 |
| Lance Lynn | | sp | 32 | 3.92 | 4 | 1 | 0 | 9 | 8 | 0 | 0 | 43.2 | 38 | 19 | 19 | 16 | 44 | 4 | 4 |
| Kenta Maeda | Min | sp | 31 | 3.51 | 12 | 11 | 0 | 34 | 34 | 0 | 0 | 192.1 | 148 | 80 | 75 | 50 | 180 | 22 | 6 |
| Tyler Mahle | Ari | sp | 24 | 3.42 | 0 | 2 | 0 | 5 | 5 | 0 | 0 | 26.1 | 25 | 14 | 10 | 12 | 27 | 7 | 2 |
| Kazuhisa Makita | NYA | mr | 34 | 2.60 | 5 | 0 | 0 | 47 | 0 | 0 | 0 | 69.1 | 54 | 21 | 20 | 21 | 46 | 5 | 10 |
| German Marquez | Bos | sp | 24 | 4.82 | 10 | 14 | 0 | 32 | 32 | 2 | 1 | 190.1 | 161 | 108 | 102 | 59 | 191 | 28 | 9 |
| Evan Marshall | | mr | 29 | 1.69 | 2 | 3 | 1 | 33 | 0 | 0 | 0 | 42.2 | 31 | 11 | 8 | 9 | 27 | 4 | 3 |
| Brett Martin* | Atl | sp | 24 | 2.76 | 14 | 9 | 0 | 32 | 32 | 1 | 1 | 189.0 | 161 | 65 | 58 | 57 | 156 | 8 | 16 |
| Chris Martin | | mr | 33 | 2.79 | 3 | 4 | 0 | 40 | 0 | 0 | 0 | 48.1 | 49 | 19 | 15 | 12 | 39 | 3 | 2 |
| Cody Martin | SD | sp | 29 | 7.71 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 4.2 | 4 | 4 | 4 | 3 | 5 | 0 | 1 |
| Corbin Martin | StL | sp | 23 | 2.89 | 0 | 0 | 0 | 11 | 0 | 0 | 0 | 18.2 | 11 | 6 | 6 | 8 | 18 | 2 | 2 |
| Carlos Martinez | Sea | sp | 27 | 3.36 | 7 | 8 | 0 | 17 | 17 | 0 | 0 | 109.2 | 87 | 44 | 41 | 43 | 105 | 11 | 15 |
| Bryan Mata | Oak | sp | 20 | 6.98 | 0 | 3 | 0 | 18 | 3 | 0 | 0 | 38.2 | 34 | 33 | 30 | 44 | 23 | 2 | 4 |
| Phil Maton | ChN | mr | 26 | 4.39 | 6 | 5 | 3 | 57 | 0 | 0 | 0 | 65.2 | 58 | 34 | 32 | 23 | 69 | 7 | 0 |
| Steven Matz* | Mia | sp | 28 | 3.84 | 2 | 4 | 0 | 14 | 14 | 0 | 0 | 79.2 | 66 | 38 | 34 | 36 | 90 | 9 | 6 |
| Dustin May | Bos | sp | 21 | 2.70 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 6.2 | 6 | 2 | 2 | 0 | 7 | 1 | 0 |
| Trevor May | Sea | mr | 29 | 5.69 | 10 | 7 | 0 | 64 | 8 | 0 | 0 | 87.0 | 83 | 62 | 55 | 63 | 92 | 11 | 4 |
| Mike Mayers | StL | mr | 27 | 0.00 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0.1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Tim Mayza* | Atl | mr | 27 | 2.54 | 5 | 2 | 4 | 41 | 0 | 0 | 0 | 49.2 | 39 | 15 | 14 | 17 | 58 | 3 | 4 |
| Brendan McCurry | ChN | mr | 27 | 4.93 | 4 | 0 | 1 | 29 | 0 | 0 | 0 | 45.2 | 51 | 26 | 25 | 12 | 45 | 9 | 6 |
| Jake McGee* | Tor | mr | 32 | 4.26 | 3 | 1 | 2 | 10 | 0 | 0 | 0 | 12.2 | 14 | 6 | 6 | 4 | 13 | 1 | 0 |
| Collin McHugh | | sp | 32 | 4.34 | 9 | 9 | 0 | 26 | 26 | 0 | 0 | 145.0 | 154 | 79 | 70 | 44 | 155 | 18 | 8 |
| John Means* | | sp | 26 | 4.76 | 3 | 7 | 4 | 29 | 10 | 0 | 0 | 81.1 | 105 | 50 | 43 | 19 | 55 | 12 | 10 |
| Adonis Medina | | sp | 22 | 4.91 | 0 | 2 | 2 | 22 | 0 | 0 | 0 | 36.2 | 39 | 24 | 20 | 21 | 31 | 3 | 2 |
| Adalberto Mejia* | | sp | 26 | 4.44 | 1 | 3 | 0 | 5 | 5 | 0 | 0 | 26.1 | 25 | 15 | 13 | 8 | 19 | 6 | 4 |
| Mark Melancon | | cl | 34 | 4.21 | 9 | 3 | 5 | 65 | 0 | 0 | 0 | 68.1 | 78 | 34 | 32 | 24 | 64 | 7 | 6 |
| Keury Mella | Sea | sp | 25 | 5.34 | 7 | 13 | 1 | 53 | 20 | 2 | 0 | 167.0 | 166 | 112 | 99 | 83 | 117 | 24 | 19 |
| Conner Menez* | LAA | sp | 24 | 5.55 | 1 | 2 | 0 | 5 | 5 | 0 | 0 | 24.1 | 29 | 17 | 15 | 14 | 33 | 6 | 1 |
| Daniel Mengden | Col | sp | 26 | 7.67 | 1 | 4 | 0 | 7 | 7 | 0 | 0 | 29.1 | 39 | 30 | 25 | 13 | 20 | 6 | 3 |
| Ryan Merritt* | Atl | sp | 27 | 4.00 | 11 | 13 | 0 | 33 | 33 | 0 | 0 | 193.1 | 201 | 90 | 86 | 30 | 136 | 20 | 19 |
| Keynan Middleton | Bal | mr | 25 | 4.61 | 4 | 2 | 2 | 67 | 0 | 0 | 0 | 82.0 | 66 | 45 | 42 | 33 | 88 | 15 | 6 |
| Miles Mikolas | Col | sp | 30 | 3.89 | 11 | 7 | 0 | 38 | 38 | 1 | 0 | 229.0 | 220 | 110 | 99 | 43 | 183 | 28 | 16 |
| Wade Miley* | SD | sp | 32 | 3.83 | 3 | 2 | 0 | 8 | 8 | 0 | 0 | 47.0 | 44 | 21 | 20 | 15 | 46 | 3 | 4 |
| Andrew Miller* | Pit | mr | 34 | 2.04 | 4 | 2 | 30 | 82 | 0 | 0 | 0 | 83.2 | 50 | 19 | 19 | 28 | 106 | 4 | 6 |
| Justin Miller | Det | mr | 32 | 3.38 | 4 | 1 | 1 | 29 | 0 | 0 | 0 | 40.0 | 38 | 15 | 15 | 10 | 46 | 2 | 3 |
| Shelby Miller | Atl | sp | 28 | 4.84 | 1 | 6 | 0 | 11 | 11 | 0 | 0 | 57.2 | 58 | 33 | 31 | 18 | 48 | 8 | 6 |
| Alec Mills | Cin | sp | 27 | 5.81 | 3 | 5 | 0 | 15 | 14 | 0 | 0 | 74.1 | 81 | 49 | 48 | 29 | 71 | 13 | 5 |
| Juan Minaya | Atl | mr | 28 | 2.51 | 6 | 3 | 4 | 67 | 0 | 0 | 0 | 82.1 | 65 | 30 | 23 | 38 | 95 | 4 | 4 |
| Mike Minor* | ChN | sp | 31 | 4.42 | 10 | 11 | 0 | 30 | 30 | 0 | 0 | 167.0 | 161 | 89 | 82 | 40 | 158 | 28 | 17 |
| A.J. Minter* | Phi | cl | 25 | 4.31 | 7 | 6 | 3 | 52 | 0 | 0 | 0 | 54.1 | 61 | 35 | 26 | 23 | 69 | 9 | 2 |
| Rafael Montero | NYA | sp | 28 | 20.77 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 4.1 | 11 | 10 | 10 | 2 | 4 | 3 | 0 |
| Jordan Montgomery* | Cle | sp | 26 | 5.65 | 0 | 1 | 0 | 3 | 3 | 0 | 0 | 14.1 | 15 | 9 | 9 | 3 | 8 | 2 | 1 |
| Mike Montgomery* | Sea | mr | 29 | 4.53 | 2 | 3 | 0 | 8 | 8 | 0 | 0 | 45.2 | 43 | 27 | 23 | 22 | 36 | 8 | 5 |
| Brian Moran* | Tor | mr | 30 | 5.47 | 2 | 3 | 2 | 20 | 0 | 0 | 0 | 26.1 | 28 | 16 | 16 | 15 | 24 | 4 | 4 |
| Adam Morgan* | Phi | mr | 29 | 5.79 | 0 | 0 | 1 | 6 | 0 | 0 | 0 | 9.1 | 9 | 6 | 6 | 2 | 8 | 3 | 1 |
| Reyes Moronta | NYA | mr | 26 | 4.53 | 2 | 3 | 4 | 44 | 0 | 0 | 0 | 53.2 | 55 | 29 | 27 | 26 | 65 | 7 | 4 |
| Charlie Morton | | sp | 35 | 3.76 | 12 | 7 | 0 | 33 | 33 | 0 | 0 | 179.2 | 168 | 81 | 75 | 59 | 192 | 19 | 25 |
| Gabriel Moya* | KC | mr | 24 | 6.04 | 2 | 7 | 0 | 24 | 14 | 0 | 0 | 73.0 | 81 | 52 | 49 | 30 | 76 | 7 | 2 |
| Kyle Muller* | StL | sp | 21 | 4.99 | 2 | 8 | 0 | 16 | 16 | 0 | 0 | 79.1 | 83 | 48 | 44 | 34 | 67 | 14 | 2 |
| Andres Munoz | Tex | mr | 20 | 7.07 | 6 | 6 | 4 | 64 | 0 | 0 | 0 | 63.2 | 58 | 52 | 50 | 72 | 74 | 14 | 8 |
| Patrick Murphy | | sp | 24 | 2.08 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 4.1 | 7 | 1 | 1 | 2 | 2 | 0 | 0 |
| Joe Musgrove | ChA | sp | 26 | 3.54 | 13 | 14 | 0 | 33 | 32 | 1 | 1 | 211.0 | 178 | 95 | 83 | 43 | 187 | 28 | 10 |
| Carlos Navas | Atl | mr | 26 | 4.03 | 4 | 2 | 1 | 60 | 0 | 0 | 0 | 96.0 | 88 | 45 | 43 | 36 | 76 | 10 | 5 |
| Nick Neidert | | sp | 22 | 5.19 | 5 | 17 | 2 | 35 | 28 | 1 | 1 | 170.0 | 200 | 110 | 98 | 38 | 139 | 23 | 18 |
| Jimmy Nelson | SD | sp | 30 | 5.40 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 5.0 | 5 | 3 | 3 | 4 | 7 | 0 | 0 |
| Nick Nelson | Was | sp | 23 | 8.42 | 1 | 0 | 0 | 21 | 0 | 0 | 0 | 31.0 | 44 | 32 | 29 | 15 | 24 | 6 | 7 |
| Hector Neris | Phi | cl | 30 | 2.26 | 4 | 4 | 4 | 66 | 0 | 0 | 0 | 75.2 | 51 | 24 | 19 | 25 | 108 | 9 | 4 |
| Pat Neshek | Phi | mr | 38 | 1.33 | 2 | 1 | 1 | 21 | 0 | 0 | 0 | 27.0 | 19 | 5 | 4 | 5 | 19 | 2 | 1 |
| Sean Newcomb* | Oak | sp | 26 | 4.44 | 6 | 15 | 0 | 33 | 32 | 1 | 1 | 184.2 | 169 | 102 | 91 | 81 | 200 | 21 | 9 |
| Juan Nicasio | NYA | mr | 32 | 3.87 | 7 | 2 | 8 | 60 | 0 | 0 | 0 | 74.1 | 69 | 35 | 32 | 20 | 96 | 15 | 7 |
| Stephen Nogosek | Oak | mr | 24 | 3.38 | 0 | 1 | 0 | 3 | 0 | 0 | 0 | 2.2 | 3 | 1 | 1 | 1 | 4 | 0 | 0 |
| Aaron Nola | Phi | sp | 26 | 2.47 | 20 | 4 | 0 | 35 | 35 | 0 | 0 | 218.1 | 188 | 63 | 60 | 53 | 241 | 19 | 19 |
| Bud Norris | NYN | cl | 34 | 3.99 | 5 | 1 | 12 | 51 | 0 | 0 | 0 | 56.1 | 41 | 29 | 25 | 19 | 63 | 7 | 1 |
| Daniel Norris* | Mia | sp | 26 | 5.79 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 4.2 | 7 | 4 | 3 | 3 | 3 | 0 | 0 |
| Ivan Nova | Mil | sp | 32 | 3.73 | 8 | 14 | 0 | 32 | 32 | 0 | 0 | 186.0 | 195 | 92 | 77 | 35 | 170 | 30 | 10 |
| Darren O'Day | Bos | mr | 36 | 1.74 | 1 | 1 | 0 | 5 | 0 | 0 | 0 | 10.1 | 11 | 2 | 2 | 0 | 10 | 0 | 1 |
| Trevor Oaks | Bal | sp | 26 | 1.80 | 3 | 2 | 0 | 6 | 6 | 0 | 0 | 40.0 | 33 | 10 | 8 | 10 | 18 | 3 | 5 |
| Scott Oberg | ChA | mr | 29 | 1.51 | 5 | 3 | 20 | 44 | 0 | 0 | 0 | 59.2 | 45 | 13 | 10 | 19 | 55 | 3 | 8 |
| Jake Odorizzi | SD | sp | 29 | 3.16 | 18 | 6 | 0 | 30 | 30 | 1 | 1 | 185.1 | 159 | 67 | 65 | 50 | 172 | 18 | 10 |
| Seung-hwan Oh | Pit | mr | 36 | 4.54 | 1 | 1 | 3 | 37 | 0 | 0 | 0 | 39.2 | 42 | 20 | 20 | 8 | 34 | 9 | 2 |
| Tyler Olson* | Cin | mr | 29 | 3.64 | 1 | 1 | 1 | 35 | 0 | 0 | 0 | 29.2 | 36 | 12 | 12 | 9 | 31 | 5 | 4 |
| Luis Ortiz | NYN | sp | 23 | 6.00 | 1 | 3 | 0 | 22 | 0 | 0 | 0 | 21.0 | 31 | 18 | 14 | 6 | 18 | 4 | 2 |
| Roberto Osuna | Mia | cl | 24 | 1.96 | 5 | 5 | 35 | 63 | 0 | 0 | 0 | 69.0 | 52 | 15 | 15 | 14 | 77 | 4 | 7 |
| Dan Otero | LAA | mr | 34 | 1.63 | 3 | 5 | 3 | 46 | 0 | 0 | 0 | 66.1 | 64 | 17 | 12 | 5 | 47 | 6 | 11 |
| Travis Ott* | NYN | mr | 24 | 3.22 | 8 | 7 | 0 | 19 | 19 | 0 | 0 | 111.2 | 95 | 47 | 40 | 56 | 120 | 4 | 8 |
| Adam Ottavino | | mr | 33 | 2.87 | 3 | 4 | 18 | 48 | 0 | 0 | 0 | 53.1 | 36 | 18 | 17 | 31 | 69 | 5 | 6 |
| Chris Paddack | KC | sp | 23 | 4.48 | 9 | 13 | 0 | 33 | 33 | 0 | 0 | 168.2 | 154 | 93 | 84 | 41 | 178 | 28 | 10 |
| Emilio Pagan | Cle | mr | 28 | 4.35 | 4 | 6 | 0 | 41 | 0 | 0 | 0 | 49.2 | 46 | 28 | 24 | 24 | 63 | 8 | 5 |
| Joe Palumbo* | NYN | sp | 24 | 8.22 | 0 | 4 | 0 | 8 | 8 | 0 | 0 | 30.2 | 43 | 31 | 28 | 24 | 30 | 6 | 3 |
| Edward Paredes* | Hou | mr | 32 | 2.39 | 0 | 1 | 2 | 25 | 0 | 0 | 0 | 26.1 | 17 | 8 | 7 | 7 | 33 | 2 | 2 |
| Blake Parker | LAA | cl | 34 | 6.41 | 2 | 0 | 0 | 20 | 0 | 0 | 0 | 26.2 | 29 | 21 | 19 | 9 | 17 | 6 | 2 |
| David Paulino | | sp | 25 | 2.05 | 2 | 0 | 0 | 14 | 3 | 0 | 0 | 26.1 | 22 | 7 | 6 | 2 | 31 | 2 | 3 |
| James Paxton* | Sea | sp | 30 | 3.47 | 4 | 10 | 0 | 18 | 18 | 0 | 0 | 114.0 | 90 | 47 | 44 | 32 | 134 | 7 | 15 |
| James Pazos* | | mr | 28 | 2.65 | 0 | 2 | 1 | 29 | 0 | 0 | 0 | 37.1 | 26 | 13 | 11 | 11 | 35 | 2 | 3 |
| Brad Peacock | | mr | 31 | 2.34 | 9 | 2 | 0 | 20 | 18 | 0 | 0 | 107.2 | 84 | 38 | 28 | 39 | 141 | 5 | 10 |
| Felix Pena | | sp | 29 | 5.10 | 2 | 5 | 0 | 14 | 14 | 0 | 0 | 77.2 | 71 | 47 | 44 | 29 | 61 | 13 | 5 |
| Freddy Peralta | Oak | sp | 23 | 4.47 | 9 | 8 | 0 | 30 | 29 | 0 | 0 | 159.0 | 133 | 86 | 79 | 98 | 213 | 20 | 9 |
| Luis Perdomo | | sp | 26 | 4.31 | 3 | 2 | 0 | 7 | 7 | 0 | 0 | 39.2 | 42 | 20 | 19 | 12 | 30 | 5 | 2 |
| Cionel Perez* | NYN | mr | 23 | 4.93 | 7 | 17 | 0 | 33 | 33 | 0 | 0 | 189.2 | 176 | 115 | 104 | 95 | 185 | 23 | 18 |
| Franklin Perez | Sea | sp | 21 | 6.75 | 0 | 1 | 1 | 2 | 0 | 0 | 0 | 1.1 | 3 | 1 | 1 | 3 | 0 | 0 | 0 |
| Martin Perez* | LAN | sp | 28 | 4.09 | 8 | 13 | 0 | 32 | 32 | 1 | 1 | 187.0 | 168 | 97 | 85 | 72 | 120 | 12 | 27 |
| Oliver Perez* | Det | mr | 37 | 3.86 | 2 | 2 | 1 | 39 | 0 | 0 | 0 | 37.1 | 35 | 17 | 16 | 17 | 44 | 3 | 0 |
| David Peterson | LAA | mr | 29 | 2.64 | 1 | 1 | 3 | 29 | 1 | 0 | 0 | 47.2 | 42 | 17 | 14 | 13 | 35 | 2 | 5 |
| Tim Peterson | Atl | mr | 28 | 0.00 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1.0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 |
| Yusmeiro Petit | | mr | 34 | 2.91 | 4 | 3 | 2 | 38 | 0 | 0 | 0 | 55.2 | 49 | 19 | 18 | 12 | 48 | 4 | 0 |
| Michael Pineda | Pit | sp | 30 | 4.76 | 8 | 7 | 0 | 21 | 20 | 0 | 0 | 109.2 | 123 | 59 | 58 | 16 | 94 | 15 | 7 |
| Nick Pivetta | | sp | 26 | 4.77 | 8 | 8 | 0 | 26 | 23 | 0 | 0 | 132.0 | 138 | 78 | 70 | 52 | 140 | 14 | 12 |
| Colin Poche* | Col | mr | 25 | 4.71 | 3 | 6 | 1 | 54 | 0 | 0 | 0 | 65.0 | 52 | 35 | 34 | 40 | 102 | 9 | 4 |
| Drew Pomeranz* | SD | sp | 30 | 3.98 | 5 | 11 | 0 | 38 | 31 | 0 | 0 | 178.2 | 155 | 86 | 79 | 86 | 192 | 17 | 22 |
| Cody Ponce | SD | sp | 25 | 6.00 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 3.0 | 4 | 2 | 2 | 0 | 2 | 1 | 0 |
| Daniel Poncedeleon | StL | sp | 27 | 3.75 | 1 | 1 | 3 | 48 | 1 | 0 | 0 | 60.0 | 54 | 27 | 25 | 34 | 55 | 5 | 2 |
| Rick Porcello | Bal | sp | 30 | 3.36 | 10 | 15 | 0 | 32 | 32 | 0 | 0 | 201.0 | 179 | 80 | 75 | 47 | 171 | 25 | 18 |
| Alex Powers | Cin | mr | 27 | 5.14 | 0 | 0 | 0 | 12 | 0 | 0 | 0 | 14.0 | 18 | 10 | 8 | 6 | 11 | 4 | 1 |
| Bobby Poyner* | LAN | mr | 26 | 4.87 | 2 | 3 | 2 | 49 | 0 | 0 | 0 | 61.0 | 64 | 36 | 33 | 14 | 57 | 11 | 3 |
| Ryan Pressly | Min | mr | 30 | 2.63 | 3 | 4 | 17 | 35 | 0 | 0 | 0 | 41.0 | 35 | 15 | 12 | 18 | 51 | 0 | 0 |
| David Price* | Tor | sp | 33 | 3.46 | 14 | 11 | 0 | 37 | 37 | 0 | 0 | 202.2 | 168 | 83 | 78 | 58 | 198 | 18 | 10 |
| Austin Pruitt | Atl | mr | 29 | 5.23 | 3 | 3 | 1 | 31 | 7 | 0 | 0 | 75.2 | 97 | 53 | 44 | 11 | 60 | 12 | 4 |
| Cal Quantrill | NYN | sp | 24 | 2.57 | 2 | 2 | 0 | 5 | 5 | 0 | 0 | 28.0 | 27 | 10 | 8 | 5 | 25 | 2 | 4 |
| Jose Quijada* | Tor | mr | 23 | 5.61 | 2 | 1 | 3 | 20 | 0 | 0 | 0 | 33.2 | 34 | 23 | 21 | 23 | 47 | 2 | 4 |
| Jose Quintana* | Col | sp | 30 | 3.24 | 15 | 6 | 0 | 39 | 39 | 0 | 0 | 217.0 | 179 | 84 | 78 | 70 | 240 | 25 | 19 |
| Noe Ramirez | Was | mr | 29 | 2.92 | 1 | 1 | 0 | 9 | 0 | 0 | 0 | 12.1 | 9 | 4 | 4 | 3 | 13 | 2 | 1 |
| Edubray Ramos | Tor | mr | 26 | 3.46 | 6 | 5 | 3 | 57 | 0 | 0 | 0 | 83.1 | 80 | 34 | 32 | 23 | 86 | 7 | 9 |
| Robbie Ray* | Oak | sp | 27 | 3.31 | 16 | 10 | 0 | 30 | 30 | 0 | 0 | 176.2 | 127 | 68 | 65 | 89 | 228 | 13 | 16 |
| Sean Reid-Foley | KC | sp | 23 | 3.55 | 6 | 3 | 1 | 44 | 4 | 0 | 0 | 83.2 | 75 | 34 | 33 | 34 | 73 | 12 | 10 |
| Alex Reyes | Tex | sp | 24 | 6.47 | 1 | 5 | 0 | 11 | 11 | 0 | 0 | 48.2 | 56 | 37 | 35 | 33 | 53 | 6 | 5 |
| Gerardo Reyes | Tex | mr | 26 | 0.00 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 3.1 | 1 | 0 | 0 | 2 | 2 | 0 | 1 |
| Garrett Richards | Bal | sp | 31 | 3.59 | 11 | 10 | 0 | 32 | 32 | 1 | 1 | 173.0 | 150 | 75 | 69 | 59 | 180 | 24 | 20 |
| Trevor Richards | | sp | 26 | 5.08 | 6 | 8 | 0 | 23 | 23 | 0 | 0 | 118.2 | 104 | 70 | 67 | 56 | 128 | 20 | 4 |
| Tanner Roark | Min | sp | 32 | 3.96 | 9 | 8 | 0 | 26 | 26 | 0 | 0 | 163.2 | 136 | 77 | 72 | 47 | 122 | 22 | 14 |
| David Robertson | Mil | cl | 34 | 3.66 | 0 | 3 | 11 | 20 | 0 | 0 | 0 | 19.2 | 18 | 9 | 8 | 7 | 28 | 6 | 1 |
| Fernando Rodney | | cl | 42 | 3.19 | 3 | 2 | 7 | 58 | 0 | 0 | 0 | 67.2 | 61 | 24 | 24 | 31 | 66 | 5 | 7 |
| Carlos Rodon* | Col | sp | 26 | 3.38 | 3 | 3 | 0 | 9 | 9 | 0 | 0 | 42.2 | 43 | 19 | 16 | 19 | 33 | 2 | 10 |
| Dereck Rodriguez | NYA | sp | 27 | 4.27 | 14 | 6 | 0 | 32 | 32 | 1 | 1 | 179.0 | 169 | 89 | 85 | 52 | 140 | 27 | 16 |
| Eduardo Rodriguez* | | sp | 26 | 4.22 | 7 | 13 | 0 | 32 | 32 | 0 | 0 | 179.0 | 153 | 94 | 84 | 78 | 188 | 23 | 7 |
| Jefry Rodriguez | Tor | sp | 25 | 5.23 | 6 | 6 | 0 | 20 | 17 | 0 | 0 | 93.0 | 95 | 62 | 54 | 65 | 75 | 10 | 7 |
| Richard Rodriguez | Mia | mr | 29 | 3.82 | 8 | 7 | 2 | 68 | 0 | 0 | 0 | 75.1 | 70 | 33 | 32 | 19 | 95 | 8 | 7 |
| Chaz Roe | | mr | 32 | 6.81 | 1 | 3 | 1 | 33 | 0 | 0 | 0 | 37.0 | 38 | 29 | 28 | 20 | 41 | 1 | 3 |
| Taylor Rogers* | | mr | 28 | 2.54 | 3 | 2 | 8 | 70 | 0 | 0 | 0 | 74.1 | 59 | 21 | 21 | 15 | 57 | 5 | 5 |
| Fernando Romero | NYN | sp | 24 | 4.85 | 2 | 1 | 0 | 5 | 5 | 0 | 0 | 29.2 | 28 | 17 | 16 | 8 | 27 | 3 | 0 |
| JoJo Romero* | | sp | 22 | 0.00 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 2.0 | 3 | 0 | 0 | 0 | 2 | 0 | 0 |
| Hector Rondon | Mia | cl | 31 | 1.88 | 6 | 3 | 3 | 52 | 0 | 0 | 0 | 67.0 | 42 | 16 | 14 | 11 | 76 | 4 | 6 |
| Trevor Rosenthal | SD | mr | 29 | 3.27 | 7 | 3 | 1 | 48 | 0 | 0 | 0 | 63.1 | 51 | 25 | 23 | 24 | 86 | 5 | 6 |
| Joe Ross | Mia | sp | 26 | 7.23 | 0 | 3 | 0 | 4 | 4 | 0 | 0 | 18.2 | 27 | 16 | 15 | 8 | 11 | 4 | 1 |
| Robbie Ross* | SD | mr | 30 | 7.94 | 0 | 2 | 1 | 4 | 0 | 0 | 0 | 5.2 | 4 | 6 | 5 | 3 | 4 | 0 | 0 |
| Tyson Ross | SF | sp | 32 | 1.50 | 0 | 0 | 1 | 9 | 0 | 0 | 0 | 12.0 | 13 | 2 | 2 | 4 | 10 | 0 | 4 |
| Zac Rosscup* | Mia | mr | 31 | 2.57 | 3 | 2 | 1 | 35 | 0 | 0 | 0 | 35.0 | 29 | 11 | 10 | 9 | 52 | 1 | 2 |
| Kyle Ryan* | ChN | mr | 27 | 4.97 | 1 | 0 | 1 | 24 | 0 | 0 | 0 | 25.1 | 25 | 14 | 14 | 13 | 19 | 1 | 5 |
| Hyun-jin Ryu* | LAN | sp | 32 | 4.33 | 7 | 10 | 0 | 23 | 23 | 0 | 0 | 116.1 | 120 | 62 | 56 | 36 | 98 | 18 | 10 |
| CC Sabathia* | Phi | sp | 38 | 5.43 | 3 | 3 | 0 | 10 | 10 | 0 | 0 | 54.2 | 60 | 36 | 33 | 14 | 49 | 11 | 2 |
| Danny Salazar | Tor | sp | 29 | 1.20 | 2 | 0 | 0 | 2 | 2 | 0 | 0 | 15.0 | 5 | 2 | 2 | 3 | 16 | 1 | 2 |
| Chris Sale* | Det | sp | 30 | 2.68 | 17 | 4 | 0 | 26 | 26 | 3 | 1 | 191.1 | 124 | 62 | 57 | 27 | 249 | 24 | 9 |
| Jeff Samardzija | Pit | sp | 34 | 3.55 | 12 | 8 | 0 | 23 | 23 | 1 | 1 | 142.0 | 116 | 63 | 56 | 34 | 117 | 14 | 7 |
| Aaron Sanchez | Tor | sp | 26 | 3.76 | 8 | 5 | 0 | 35 | 35 | 0 | 0 | 189.0 | 174 | 84 | 79 | 86 | 157 | 10 | 27 |
| Anibal Sanchez | SF | sp | 35 | 4.04 | 12 | 12 | 0 | 39 | 37 | 0 | 0 | 193.2 | 178 | 95 | 87 | 64 | 207 | 22 | 5 |
| Dennis Santana | Ari | sp | 23 | 5.63 | 4 | 7 | 2 | 73 | 0 | 0 | 0 | 84.2 | 105 | 58 | 53 | 34 | 72 | 12 | 12 |
| Josh Sborz | Min | mr | 25 | 4.86 | 2 | 0 | 1 | 13 | 0 | 0 | 0 | 16.2 | 18 | 9 | 9 | 6 | 22 | 1 | 0 |
| Kit Scheetz* | Tam | mr | 25 | 3.30 | 5 | 6 | 2 | 61 | 0 | 0 | 0 | 101.0 | 79 | 41 | 37 | 26 | 98 | 11 | 5 |
| Max Scherzer | Det | sp | 34 | 2.81 | 17 | 7 | 0 | 29 | 29 | 6 | 3 | 208.1 | 147 | 69 | 65 | 59 | 281 | 30 | 7 |
| John Schreiber | Atl | mr | 25 | 3.25 | 3 | 0 | 2 | 25 | 0 | 0 | 0 | 36.0 | 29 | 14 | 13 | 14 | 22 | 4 | 2 |
| Tanner Scott* | NYN | mr | 24 | 2.89 | 3 | 5 | 3 | 81 | 0 | 0 | 0 | 87.1 | 62 | 32 | 28 | 52 | 117 | 5 | 12 |
| Sam Selman* | Tex | mr | 28 | 9.41 | 0 | 2 | 0 | 16 | 0 | 0 | 0 | 22.0 | 30 | 23 | 23 | 25 | 24 | 5 | 4 |
| Antonio Senzatela | | sp | 24 | 4.98 | 9 | 16 | 0 | 33 | 32 | 0 | 0 | 171.2 | 160 | 100 | 95 | 78 | 138 | 29 | 17 |
| Mike Shawaryn | Tam | sp | 24 | 4.10 | 8 | 11 | 0 | 23 | 23 | 0 | 0 | 131.2 | 113 | 68 | 60 | 47 | 108 | 21 | 9 |
| Justus Sheffield* | Ari | sp | 23 | 4.67 | 8 | 13 | 2 | 43 | 21 | 0 | 0 | 135.0 | 139 | 89 | 70 | 69 | 124 | 17 | 17 |
| Chandler Shepherd | Atl | sp | 26 | 4.74 | 1 | 7 | 0 | 13 | 13 | 0 | 0 | 74.0 | 73 | 41 | 39 | 18 | 49 | 13 | 6 |
| Jimmie Sherfy | Col | mr | 27 | 2.88 | 9 | 2 | 1 | 57 | 0 | 0 | 0 | 65.2 | 57 | 25 | 21 | 23 | 82 | 4 | 3 |
| Matt Shoemaker | Mil | sp | 32 | 3.00 | 3 | 3 | 0 | 10 | 10 | 0 | 0 | 57.0 | 54 | 19 | 19 | 10 | 55 | 3 | 4 |
| Logan Shore | Bal | sp | 24 | 3.00 | 1 | 1 | 0 | 6 | 0 | 0 | 0 | 6.0 | 8 | 2 | 2 | 2 | 3 | 1 | 0 |
| Lucas Sims | Hou | sp | 25 | 5.43 | 6 | 7 | 5 | 91 | 6 | 0 | 0 | 112.2 | 99 | 73 | 68 | 62 | 140 | 20 | 8 |
| Tony Sipp* | NYN | mr | 35 | 1.83 | 4 | 2 | 0 | 33 | 0 | 0 | 0 | 39.1 | 33 | 8 | 8 | 12 | 44 | 2 | 3 |
| Tyler Skaggs* | StL | sp | 27 | 3.70 | 1 | 2 | 0 | 5 | 5 | 0 | 0 | 24.1 | 23 | 13 | 10 | 6 | 22 | 2 | 2 |
| Eric Skoglund* | LAN | sp | 26 | 1.76 | 3 | 0 | 0 | 5 | 5 | 0 | 0 | 30.2 | 25 | 9 | 6 | 13 | 24 | 1 | 4 |
| Devin Smeltzer* | Pit | sp | 23 | 3.66 | 4 | 0 | 2 | 11 | 4 | 0 | 0 | 32.0 | 25 | 13 | 13 | 8 | 31 | 6 | 2 |
| Caleb Smith* | Oak | sp | 27 | 3.35 | 6 | 5 | 1 | 32 | 13 | 0 | 0 | 107.1 | 87 | 42 | 40 | 48 | 113 | 11 | 11 |
| Carson Smith | Sea | mr | 29 | 2.80 | 5 | 4 | 4 | 70 | 1 | 0 | 0 | 96.1 | 69 | 37 | 30 | 30 | 108 | 6 | 11 |
| Joe Smith | Mil | mr | 35 | 4.13 | 2 | 3 | 2 | 24 | 0 | 0 | 0 | 28.1 | 33 | 15 | 13 | 6 | 22 | 5 | 5 |
| Will Smith* | Mia | cl | 29 | 2.75 | 3 | 2 | 9 | 51 | 0 | 0 | 0 | 52.1 | 41 | 18 | 16 | 16 | 67 | 5 | 2 |
| Drew Smyly* | Mil | sp | 30 | 5.05 | 5 | 9 | 0 | 32 | 32 | 0 | 0 | 153.1 | 172 | 98 | 86 | 46 | 168 | 35 | 9 |
| Cy Sneed | Pit | sp | 26 | 4.50 | 0 | 0 | 1 | 3 | 0 | 0 | 0 | 6.0 | 5 | 3 | 3 | 1 | 2 | 0 | 1 |
| Blake Snell* | Tor | sp | 26 | 2.41 | 7 | 4 | 0 | 22 | 22 | 0 | 0 | 119.2 | 72 | 34 | 32 | 52 | 140 | 5 | 6 |
| Chad Sobotka | LAN | mr | 25 | 5.81 | 2 | 1 | 2 | 27 | 0 | 0 | 0 | 26.1 | 31 | 22 | 17 | 21 | 25 | 1 | 3 |
| Sammy Solis* | Bal | mr | 30 | 5.09 | 6 | 5 | 3 | 66 | 0 | 0 | 0 | 58.1 | 42 | 37 | 33 | 38 | 71 | 6 | 6 |
| Joakim Soria | Phi | cl | 35 | 2.11 | 3 | 4 | 13 | 60 | 0 | 0 | 0 | 76.2 | 57 | 21 | 18 | 21 | 79 | 6 | 6 |
| Mike Soroka | Ari | sp | 21 | 4.56 | 5 | 10 | 0 | 25 | 24 | 0 | 0 | 132.1 | 148 | 71 | 67 | 38 | 102 | 15 | 9 |
| Craig Stammen | Mil | mr | 35 | 6.88 | 5 | 3 | 1 | 48 | 0 | 0 | 0 | 52.1 | 67 | 44 | 40 | 16 | 60 | 12 | 3 |
| Ryne Stanek | Oak | mr | 27 | 3.55 | 3 | 1 | 2 | 55 | 3 | 0 | 0 | 66.0 | 54 | 27 | 26 | 37 | 82 | 9 | 8 |
| Teddy Stankiewicz | Hou | sp | 25 | 4.88 | 2 | 4 | 10 | 38 | 0 | 0 | 0 | 51.2 | 50 | 33 | 28 | 17 | 31 | 13 | 6 |
| Cody Stashak | Was | mr | 25 | 1.29 | 3 | 0 | 2 | 18 | 0 | 0 | 0 | 21.0 | 11 | 3 | 3 | 3 | 10 | 2 | 3 |
| Josh Staumont | NYN | mr | 25 | 6.00 | 2 | 3 | 0 | 12 | 12 | 0 | 0 | 63.0 | 57 | 44 | 42 | 51 | 74 | 7 | 10 |
| Drew Steckenrider | NYA | mr | 28 | 3.07 | 1 | 0 | 1 | 14 | 0 | 0 | 0 | 14.2 | 9 | 5 | 5 | 7 | 22 | 1 | 0 |
| Robert Stock | Atl | mr | 29 | 0.00 | 0 | 0 | 1 | 9 | 0 | 0 | 0 | 11.1 | 5 | 3 | 0 | 4 | 16 | 1 | 1 |
| Matt Strahm* | LAA | mr | 27 | 4.66 | 10 | 11 | 0 | 28 | 28 | 0 | 0 | 150.2 | 136 | 80 | 78 | 69 | 168 | 24 | 7 |
| Stephen Strasburg | NYA | sp | 30 | 2.53 | 15 | 3 | 0 | 32 | 32 | 0 | 0 | 196.0 | 149 | 57 | 55 | 54 | 217 | 21 | 15 |
| Chris Stratton | Tor | sp | 28 | 3.60 | 5 | 1 | 1 | 20 | 8 | 0 | 0 | 60.0 | 51 | 27 | 24 | 25 | 43 | 5 | 6 |
| Ross Stripling | Cin | sp | 29 | 4.17 | 8 | 6 | 0 | 29 | 20 | 0 | 0 | 136.0 | 133 | 64 | 63 | 27 | 140 | 19 | 13 |
| Marcus Stroman | SD | sp | 28 | 3.65 | 11 | 11 | 0 | 34 | 33 | 1 | 1 | 194.2 | 182 | 93 | 79 | 64 | 154 | 12 | 35 |
| Pedro Strop | Tor | mr | 34 | 4.46 | 3 | 4 | 11 | 59 | 0 | 0 | 0 | 72.2 | 66 | 38 | 36 | 20 | 89 | 10 | 10 |
| Andrew Suarez* | SF | sp | 26 | 3.86 | 4 | 1 | 1 | 16 | 3 | 0 | 0 | 49.0 | 38 | 23 | 21 | 12 | 36 | 10 | 7 |
| Jose Suarez* | Tam | sp | 21 | 3.94 | 6 | 10 | 0 | 31 | 31 | 0 | 0 | 178.0 | 153 | 83 | 78 | 63 | 180 | 23 | 19 |
| Ranger Suarez* | Cle | sp | 23 | 3.89 | 1 | 1 | 6 | 20 | 0 | 0 | 0 | 34.2 | 27 | 16 | 15 | 15 | 26 | 4 | 7 |
| Wander Suero | Tor | mr | 27 | 4.30 | 5 | 3 | 3 | 56 | 0 | 0 | 0 | 75.1 | 77 | 38 | 36 | 31 | 64 | 8 | 5 |
| Cole Sulser | Cin | mr | 29 | 2.99 | 5 | 4 | 4 | 60 | 0 | 0 | 0 | 78.1 | 63 | 30 | 26 | 26 | 95 | 11 | 8 |
| Trey Supak | Ari | sp | 23 | 4.73 | 1 | 1 | 4 | 51 | 0 | 0 | 0 | 64.2 | 54 | 34 | 34 | 34 | 59 | 12 | 3 |
| Anthony Swarzak | Col | mr | 33 | 3.33 | 3 | 3 | 2 | 53 | 0 | 0 | 0 | 67.2 | 60 | 25 | 25 | 21 | 71 | 11 | 9 |
| Noah Syndergaard | | sp | 26 | 4.21 | 9 | 2 | 0 | 25 | 21 | 1 | 0 | 119.2 | 107 | 56 | 56 | 39 | 116 | 9 | 7 |
| Jameson Taillon | Col | sp | 27 | 3.88 | 4 | 1 | 0 | 9 | 9 | 0 | 0 | 48.2 | 45 | 23 | 21 | 10 | 40 | 5 | 4 |
| Masahiro Tanaka | LAN | sp | 30 | 2.82 | 9 | 15 | 0 | 33 | 33 | 1 | 0 | 204.1 | 171 | 68 | 64 | 29 | 205 | 15 | 9 |
| Stephen Tarpley* | LAN | mr | 26 | 3.50 | 11 | 13 | 8 | 82 | 0 | 0 | 0 | 121.0 | 103 | 51 | 47 | 69 | 110 | 5 | 12 |
| Curtis Taylor | SF | mr | 23 | 4.99 | 6 | 16 | 0 | 35 | 33 | 0 | 0 | 157.0 | 165 | 99 | 87 | 76 | 164 | 18 | 10 |
| Josh Taylor* | Tex | mr | 26 | 2.82 | 1 | 1 | 0 | 38 | 0 | 0 | 0 | 44.2 | 42 | 17 | 14 | 21 | 36 | 0 | 5 |
| Julio Teheran | SD | sp | 28 | 2.54 | 14 | 8 | 0 | 32 | 32 | 0 | 0 | 191.2 | 141 | 65 | 54 | 74 | 180 | 14 | 13 |
| Ryan Tepera | Mil | mr | 31 | 3.75 | 2 | 2 | 2 | 44 | 0 | 0 | 0 | 62.1 | 51 | 27 | 26 | 27 | 64 | 8 | 9 |
| Jake Thompson | SD | sp | 25 | 4.03 | 4 | 1 | 1 | 41 | 0 | 0 | 0 | 58.0 | 64 | 35 | 26 | 23 | 45 | 5 | 6 |
| Tyler Thornburg | Bal | mr | 30 | 2.45 | 2 | 4 | 9 | 67 | 0 | 0 | 0 | 77.0 | 51 | 26 | 21 | 29 | 76 | 6 | 7 |
| Trent Thornton | | sp | 25 | 5.16 | 7 | 7 | 1 | 58 | 10 | 0 | 0 | 103.0 | 120 | 68 | 59 | 31 | 90 | 13 | 11 |
| Lewis Thorpe* | KC | sp | 23 | 2.94 | 15 | 6 | 0 | 31 | 31 | 0 | 0 | 186.2 | 145 | 67 | 61 | 65 | 162 | 22 | 12 |
| Josh Tomlin | Hou | sp | 34 | 4.13 | 10 | 15 | 0 | 32 | 32 | 0 | 0 | 196.0 | 204 | 105 | 90 | 21 | 159 | 36 | 8 |
| Touki Toussaint | Tex | sp | 23 | 5.10 | 6 | 13 | 0 | 32 | 32 | 0 | 0 | 176.1 | 169 | 114 | 100 | 89 | 189 | 17 | 11 |
| Blake Treinen | Col | cl | 31 | 3.01 | 4 | 5 | 25 | 59 | 0 | 0 | 0 | 77.2 | 67 | 27 | 26 | 24 | 91 | 5 | 16 |
| Andrew Triggs | Atl | sp | 30 | 7.11 | 0 | 2 | 0 | 3 | 3 | 0 | 0 | 12.2 | 22 | 13 | 10 | 5 | 14 | 1 | 2 |
| Lou Trivino | | mr | 27 | 3.03 | 7 | 2 | 5 | 61 | 0 | 0 | 0 | 92.0 | 74 | 31 | 31 | 20 | 102 | 8 | 9 |
| Duane Underwood | Tex | sp | 24 | 6.00 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 6.0 | 12 | 4 | 4 | 0 | 3 | 1 | 2 |
| Jose Urena | Tam | sp | 27 | 3.23 | 4 | 4 | 0 | 14 | 14 | 0 | 0 | 86.1 | 68 | 38 | 31 | 25 | 70 | 10 | 4 |
| Julio Urias* | Oak | sp | 22 | 5.59 | 7 | 10 | 0 | 25 | 19 | 0 | 0 | 111.0 | 103 | 74 | 69 | 49 | 130 | 19 | 11 |
| Framber Valdez* | | sp | 25 | 3.50 | 8 | 3 | 0 | 25 | 16 | 0 | 0 | 110.2 | 82 | 49 | 43 | 60 | 107 | 12 | 9 |
| Andrew Vasquez* | Bos | mr | 25 | 3.54 | 7 | 3 | 0 | 52 | 0 | 0 | 0 | 76.1 | 60 | 35 | 30 | 37 | 95 | 8 | 2 |
| Felipe Vazquez* | NYA | cl | 27 | 3.50 | 7 | 4 | 18 | 60 | 0 | 0 | 0 | 79.2 | 64 | 31 | 31 | 21 | 105 | 10 | 7 |
| Vince Velasquez | StL | sp | 27 | 4.23 | 7 | 17 | 0 | 33 | 33 | 0 | 0 | 180.2 | 172 | 93 | 85 | 69 | 200 | 24 | 12 |
| Drew VerHagen | Cle | mr | 28 | 2.81 | 0 | 1 | 1 | 4 | 1 | 0 | 0 | 16.0 | 22 | 7 | 5 | 3 | 18 | 0 | 3 |
| Justin Verlander | | sp | 36 | 2.47 | 16 | 10 | 0 | 33 | 33 | 0 | 0 | 233.1 | 156 | 69 | 64 | 39 | 275 | 21 | 6 |
| Stephen Villines | | mr | 23 | 3.36 | 6 | 3 | 5 | 75 | 0 | 0 | 0 | 107.0 | 93 | 45 | 40 | 41 | 125 | 16 | 6 |
| Nick Vincent | StL | mr | 32 | 5.40 | 1 | 5 | 2 | 24 | 0 | 0 | 0 | 26.2 | 31 | 19 | 16 | 6 | 29 | 8 | 1 |
| Arodys Vizcaino | Cin | cl | 28 | 23.63 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 2.2 | 7 | 8 | 7 | 3 | 5 | 1 | 0 |
| Michael Wacha | Bos | sp | 27 | 5.05 | 5 | 3 | 0 | 40 | 0 | 0 | 0 | 57.0 | 55 | 39 | 32 | 25 | 58 | 11 | 4 |
| Jacob Waguespack | | sp | 25 | 1.16 | 1 | 0 | 0 | 4 | 4 | 0 | 0 | 23.1 | 12 | 4 | 3 | 12 | 21 | 0 | 2 |
| Bobby Wahl | Sea | mr | 27 | 2.70 | 0 | 1 | 0 | 10 | 0 | 0 | 0 | 13.1 | 10 | 5 | 4 | 3 | 26 | 1 | 0 |
| Adam Wainwright | Pit | sp | 37 | 2.85 | 17 | 5 | 0 | 32 | 32 | 1 | 0 | 186.1 | 156 | 65 | 59 | 71 | 166 | 19 | 18 |
| Marcus Walden | Mia | mr | 30 | 40.50 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 0.2 | 1 | 3 | 3 | 2 | 0 | 1 | 0 |
| Adam Warren | Sea | mr | 31 | 5.47 | 3 | 4 | 2 | 64 | 7 | 0 | 0 | 82.1 | 83 | 59 | 50 | 41 | 97 | 19 | 3 |
| Tony Watson* | Tor | mr | 34 | 2.68 | 4 | 2 | 8 | 70 | 0 | 0 | 0 | 84.0 | 62 | 26 | 25 | 17 | 94 | 4 | 7 |
| Luke Weaver | Cle | sp | 25 | 8.10 | 0 | 1 | 0 | 24 | 1 | 0 | 0 | 33.1 | 47 | 31 | 30 | 15 | 29 | 5 | 2 |
| Logan Webb | LAA | sp | 22 | 6.75 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1.1 | 1 | 1 | 1 | 0 | 0 | 1 | 0 |
| Tyler Webb* | | mr | 28 | 1.61 | 6 | 1 | 6 | 37 | 0 | 0 | 0 | 50.1 | 42 | 9 | 9 | 13 | 55 | 3 | 8 |
| Ryan Weber | | sp | 28 | 3.79 | 12 | 13 | 0 | 32 | 30 | 2 | 1 | 185.1 | 206 | 87 | 78 | 38 | 109 | 17 | 21 |
| Patrick Weigel | Tex | sp | 24 | 6.75 | 3 | 13 | 0 | 33 | 26 | 0 | 0 | 142.2 | 163 | 113 | 107 | 69 | 115 | 20 | 12 |
| Blake Weiman* | Atl | mr | 23 | 5.80 | 2 | 1 | 3 | 30 | 0 | 0 | 0 | 45.0 | 54 | 32 | 29 | 11 | 34 | 5 | 4 |
| J.B. Wendelken | | mr | 26 | 4.23 | 2 | 3 | 5 | 58 | 0 | 0 | 0 | 83.0 | 72 | 42 | 39 | 26 | 86 | 13 | 3 |
| Joey Wentz* | Ari | sp | 21 | 3.94 | 0 | 2 | 0 | 3 | 3 | 0 | 0 | 16.0 | 12 | 8 | 7 | 9 | 14 | 1 | 1 |
| Zack Wheeler | Mia | sp | 29 | 3.15 | 16 | 6 | 0 | 33 | 33 | 2 | 0 | 226.0 | 187 | 82 | 79 | 65 | 233 | 22 | 13 |
| Mitchell White | Cin | sp | 24 | 6.87 | 2 | 2 | 0 | 4 | 4 | 0 | 0 | 18.1 | 25 | 17 | 14 | 5 | 14 | 4 | 1 |
| Forrest Whitley | Atl | sp | 21 | 3.00 | 6 | 6 | 0 | 22 | 22 | 0 | 0 | 111.0 | 91 | 52 | 37 | 59 | 127 | 10 | 5 |
| Rowan Wick | Was | mr | 26 | 8.20 | 1 | 4 | 3 | 16 | 0 | 0 | 0 | 18.2 | 21 | 20 | 17 | 15 | 19 | 6 | 0 |
| Taylor Widener | Ari | sp | 24 | 7.09 | 0 | 4 | 0 | 5 | 5 | 0 | 0 | 26.2 | 22 | 22 | 21 | 25 | 30 | 4 | 2 |
| Brad Wieck* | StL | mr | 27 | 4.03 | 3 | 5 | 2 | 61 | 0 | 0 | 0 | 60.1 | 41 | 28 | 27 | 40 | 84 | 6 | 5 |
| Aaron Wilkerson | KC | sp | 30 | 4.50 | 2 | 5 | 0 | 11 | 11 | 0 | 0 | 50.0 | 53 | 27 | 25 | 24 | 38 | 5 | 5 |
| Taylor Williams | StL | mr | 27 | 3.88 | 2 | 2 | 3 | 57 | 0 | 0 | 0 | 62.2 | 56 | 31 | 27 | 25 | 64 | 8 | 5 |
| Trevor Williams | Tam | sp | 27 | 4.70 | 7 | 11 | 0 | 27 | 27 | 0 | 0 | 149.1 | 150 | 91 | 78 | 42 | 119 | 23 | 9 |
| Bryse Wilson | StL | sp | 21 | 2.75 | 13 | 9 | 0 | 32 | 32 | 0 | 0 | 196.1 | 155 | 67 | 60 | 54 | 178 | 20 | 13 |
| Justin Wilson* | Det | mr | 31 | 6.23 | 0 | 1 | 0 | 18 | 0 | 0 | 0 | 17.1 | 18 | 12 | 12 | 16 | 29 | 5 | 1 |
| Dan Winkler | LAN | mr | 29 | 3.35 | 4 | 2 | 2 | 64 | 0 | 0 | 0 | 78.0 | 63 | 29 | 29 | 30 | 81 | 9 | 7 |
| Matt Wisler | Tam | sp | 26 | 6.34 | 0 | 4 | 6 | 29 | 0 | 0 | 0 | 32.2 | 35 | 24 | 23 | 10 | 32 | 6 | 3 |
| Nick Wittgren | StL | mr | 28 | 3.53 | 5 | 3 | 1 | 64 | 0 | 0 | 0 | 86.2 | 84 | 39 | 34 | 20 | 87 | 10 | 3 |
| Alex Wood* | | sp | 28 | 3.18 | 4 | 5 | 0 | 11 | 11 | 0 | 0 | 62.1 | 51 | 23 | 22 | 22 | 64 | 6 | 2 |
| Hunter Wood | | mr | 25 | 6.66 | 0 | 6 | 0 | 10 | 10 | 0 | 0 | 48.2 | 63 | 41 | 36 | 16 | 45 | 10 | 5 |
| Jake Woodford | | sp | 22 | 8.75 | 1 | 12 | 0 | 16 | 16 | 0 | 0 | 72.0 | 94 | 75 | 70 | 42 | 44 | 10 | 6 |
| Brandon Woodruff | ChA | sp | 26 | 0.00 | 0 | 0 | 0 | 10 | 0 | 0 | 0 | 11.1 | 3 | 0 | 0 | 4 | 11 | 0 | 0 |
| Jordan Yamamoto | | sp | 23 | 4.76 | 1 | 8 | 1 | 22 | 13 | 0 | 0 | 81.1 | 86 | 52 | 43 | 30 | 76 | 15 | 8 |
| Ryan Yarbrough* | SD | mr | 27 | 5.07 | 3 | 10 | 6 | 80 | 0 | 0 | 0 | 104.2 | 119 | 64 | 59 | 47 | 80 | 13 | 11 |
| Kirby Yates | Bos | mr | 32 | 2.33 | 9 | 1 | 3 | 54 | 0 | 0 | 0 | 65.2 | 39 | 25 | 17 | 20 | 91 | 9 | 1 |
| Huascar Ynoa | Ari | sp | 21 | 6.14 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 7.1 | 6 | 6 | 5 | 10 | 5 | 0 | 2 |
| Daniel Zamora* | Cin | mr | 26 | 5.18 | 3 | 5 | 2 | 34 | 1 | 0 | 0 | 41.2 | 47 | 24 | 24 | 27 | 48 | 5 | 4 |
| T.J. Zeuch | Cin | sp | 23 | 4.02 | 1 | 1 | 0 | 3 | 3 | 0 | 0 | 15.2 | 20 | 10 | 7 | 1 | 11 | 2 | 0 |
| Jordan Zimmermann | Pit | sp | 33 | 0.00 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0.2 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
| Secondary |
| Name | Team | P | Age | SB | CS | IW | HBP | WP | BK | SH | SF | H/9 | BB/9 | R/9 | K/9 | HR/9 | K/BB | WHIP |
| Austin L. Adams | Cle | mr | 28 | 6 | 1 | 0 | 3 | 8 | 0 | 0 | 1 | 8.0 | 5.8 | 14.4 | 13.4 | 1.0 | 2.3 | 1.53 |
| Chance Adams | KC | sp | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16.2 | 2.2 | 18.4 | 7.6 | 2.2 | 3.5 | 2.04 |
| Dario Agrazal | LAA | sp | 24 | 2 | 1 | 1 | 2 | 1 | 0 | 0 | 3 | 10.1 | 2.8 | 13.2 | 3.7 | 0.4 | 1.4 | 1.42 |
| Jorge Alcala | Tor | sp | 23 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 7.4 | 2.5 | 9.8 | 9.8 | 2.5 | 4.0 | 1.09 |
| Sandy Alcantara | Bos | sp | 23 | 0 | 0 | 0 | 2 | 3 | 0 | 0 | 0 | 11.1 | 6.4 | 18.3 | 9.5 | 0.8 | 1.5 | 1.94 |
| Scott Alexander* | LAA | mr | 29 | 2 | 2 | 2 | 0 | 3 | 0 | 0 | 2 | 5.9 | 4.2 | 10.1 | 8.6 | 0.3 | 2.1 | 1.12 |
| Kolby Allard* | | sp | 21 | 10 | 5 | 2 | 9 | 13 | 2 | 1 | 7 | 8.4 | 3.4 | 12.2 | 7.9 | 1.0 | 2.3 | 1.31 |
| Cody Allen | Bal | cl | 30 | 8 | 2 | 2 | 2 | 6 | 0 | 0 | 1 | 7.2 | 3.0 | 10.4 | 9.6 | 1.1 | 3.2 | 1.13 |
| Dan Altavilla | LAN | mr | 26 | 2 | 0 | 0 | 3 | 5 | 0 | 0 | 0 | 8.2 | 5.6 | 14.7 | 7.6 | 0.3 | 1.4 | 1.53 |
| Jose Alvarado* | Ari | mr | 24 | 1 | 3 | 0 | 1 | 4 | 0 | 0 | 2 | 7.0 | 3.8 | 11.0 | 9.0 | 0.2 | 2.4 | 1.20 |
| Jose Alvarez* | Min | mr | 30 | 10 | 1 | 1 | 1 | 2 | 0 | 0 | 0 | 9.3 | 4.2 | 13.7 | 10.5 | 1.1 | 2.5 | 1.50 |
| Yadier Alvarez | Hou | sp | 23 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 2.3 | 4.5 | 6.8 | 11.3 | 2.3 | 2.5 | 0.75 |
| Adbert Alzolay | Oak | sp | 24 | 5 | 4 | 0 | 1 | 2 | 1 | 0 | 4 | 10.1 | 4.0 | 14.3 | 5.9 | 0.7 | 1.5 | 1.57 |
| Brett Anderson* | Sea | sp | 31 | 12 | 15 | 0 | 7 | 5 | 0 | 1 | 7 | 8.8 | 2.6 | 11.7 | 6.2 | 1.0 | 2.4 | 1.27 |
| Ian Anderson | Tam | sp | 21 | 12 | 7 | 0 | 13 | 43 | 1 | 2 | 7 | 8.0 | 5.1 | 13.8 | 8.5 | 1.5 | 1.7 | 1.45 |
| Justin Anderson | Tex | mr | 26 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 6.0 | 6.0 | 12.0 | 9.0 | 0.0 | 1.5 | 1.33 |
| Nick Anderson | Tex | mr | 28 | 6 | 1 | 2 | 2 | 2 | 1 | 0 | 3 | 9.7 | 4.2 | 14.2 | 9.5 | 1.5 | 2.3 | 1.55 |
| Shaun Anderson | SF | sp | 24 | 10 | 4 | 1 | 1 | 1 | 0 | 0 | 0 | 8.8 | 3.3 | 12.2 | 7.3 | 0.9 | 2.2 | 1.34 |
| Tanner Anderson | Mil | mr | 26 | 12 | 5 | 3 | 4 | 7 | 0 | 3 | 1 | 9.6 | 3.1 | 13.0 | 5.5 | 1.1 | 1.8 | 1.41 |
| Tyler Anderson* | Bos | sp | 29 | 5 | 2 | 0 | 1 | 1 | 0 | 0 | 1 | 6.6 | 2.2 | 9.0 | 9.5 | 1.5 | 4.3 | 0.97 |
| Victor Arano | Tex | mr | 24 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 2 | 6.2 | 2.1 | 9.0 | 7.6 | 0.0 | 3.7 | 0.92 |
| Chris Archer | SD | sp | 30 | 7 | 5 | 2 | 4 | 8 | 0 | 5 | 2 | 10.0 | 3.6 | 13.8 | 9.5 | 1.1 | 2.6 | 1.51 |
| Rogelio Armenteros | Sea | sp | 25 | 7 | 2 | 0 | 7 | 6 | 0 | 0 | 3 | 8.0 | 4.4 | 12.9 | 8.7 | 0.9 | 2.0 | 1.38 |
| Shawn Armstrong | | mr | 28 | 3 | 5 | 0 | 0 | 1 | 0 | 0 | 2 | 6.4 | 3.4 | 9.9 | 10.4 | 1.0 | 3.0 | 1.10 |
| Jake Arrieta | Min | sp | 33 | 26 | 9 | 3 | 8 | 9 | 0 | 0 | 2 | 7.7 | 3.7 | 11.9 | 8.4 | 1.1 | 2.3 | 1.26 |
| Luis Avilan* | | mr | 29 | 1 | 1 | 1 | 0 | 2 | 0 | 0 | 1 | 10.2 | 2.5 | 12.7 | 10.7 | 0.5 | 4.2 | 1.42 |
| Michel Baez | Tex | sp | 23 | 5 | 3 | 0 | 2 | 5 | 0 | 1 | 5 | 10.9 | 5.3 | 16.5 | 7.9 | 1.8 | 1.5 | 1.80 |
| Pedro Baez | Min | mr | 31 | 9 | 3 | 0 | 0 | 2 | 0 | 0 | 1 | 7.9 | 2.0 | 9.8 | 8.8 | 1.1 | 4.5 | 1.09 |
| Anthony Banda* | Det | sp | 25 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 4.8 | 1.0 | 6.0 | 9.2 | 0.3 | 9.7 | 0.64 |
| Manny Banuelos* | ChA | sp | 28 | 5 | 1 | 0 | 1 | 4 | 0 | 0 | 1 | 10.1 | 3.4 | 13.8 | 7.8 | 0.8 | 2.3 | 1.50 |
| Jacob Barnes | Tor | mr | 29 | 5 | 2 | 3 | 5 | 4 | 0 | 0 | 3 | 7.1 | 4.3 | 11.9 | 9.8 | 0.3 | 2.3 | 1.26 |
| Matt Barnes | Det | mr | 29 | 4 | 1 | 0 | 2 | 4 | 1 | 0 | 0 | 7.4 | 4.9 | 12.8 | 11.5 | 1.8 | 2.3 | 1.38 |
| Tony Barnette | Mil | mr | 35 | 5 | 1 | 0 | 3 | 0 | 0 | 1 | 0 | 7.2 | 2.6 | 10.5 | 8.1 | 0.5 | 3.1 | 1.09 |
| Kyle Barraclough | Was | mr | 29 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 4.5 | 9.0 | 13.5 | 4.5 | 0.0 | 0.5 | 1.50 |
| Jaime Barria | Cle | sp | 22 | 10 | 6 | 0 | 11 | 12 | 1 | 1 | 5 | 9.4 | 2.3 | 12.3 | 7.5 | 1.4 | 3.3 | 1.30 |
| Chris Bassitt | Mil | sp | 30 | 7 | 3 | 0 | 2 | 3 | 0 | 1 | 3 | 10.1 | 3.7 | 14.0 | 7.3 | 1.2 | 2.0 | 1.53 |
| Trevor Bauer | | sp | 28 | 5 | 14 | 0 | 13 | 5 | 1 | 4 | 7 | 7.0 | 2.7 | 10.1 | 9.8 | 0.8 | 3.7 | 1.07 |
| Gerson Bautista | Cin | mr | 24 | 2 | 2 | 1 | 2 | 9 | 0 | 0 | 1 | 7.9 | 3.4 | 11.7 | 8.6 | 0.7 | 2.5 | 1.26 |
| Cam Bedrosian | Tam | mr | 27 | 0 | 1 | 2 | 1 | 7 | 0 | 0 | 1 | 9.5 | 2.6 | 12.3 | 9.7 | 1.2 | 3.7 | 1.35 |
| Tyler Beede | NYA | sp | 26 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 9.9 | 0.0 | 9.9 | 7.1 | 0.0 | 99.0 | 1.11 |
| Jalen Beeks* | LAN | sp | 25 | 12 | 6 | 1 | 1 | 5 | 1 | 5 | 2 | 7.8 | 3.5 | 11.3 | 9.8 | 1.3 | 2.7 | 1.26 |
| Travis Bergen* | ChA | mr | 25 | 3 | 0 | 0 | 2 | 2 | 0 | 0 | 0 | 9.9 | 5.7 | 16.6 | 8.5 | 2.8 | 1.5 | 1.74 |
| Jose Berrios | Det | sp | 25 | 5 | 7 | 0 | 8 | 3 | 1 | 0 | 1 | 6.8 | 2.1 | 9.3 | 10.0 | 1.2 | 4.9 | 0.99 |
| Trevor Bettencourt | Mia | mr | 24 | 4 | 1 | 3 | 3 | 14 | 0 | 0 | 3 | 8.7 | 4.0 | 13.2 | 9.9 | 1.0 | 2.5 | 1.41 |
| Chad Bettis | LAA | sp | 30 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4.2 | 6.8 | 11.0 | 4.2 | 1.7 | 0.6 | 1.22 |
| Jesse Biddle* | Col | mr | 27 | 3 | 2 | 2 | 1 | 1 | 0 | 0 | 1 | 8.0 | 2.6 | 10.8 | 9.4 | 0.9 | 3.7 | 1.17 |
| Shane Bieber | KC | sp | 24 | 5 | 5 | 0 | 9 | 4 | 0 | 0 | 5 | 7.5 | 1.6 | 9.5 | 6.8 | 0.7 | 4.3 | 1.01 |
| Brandon Bielak | Ari | sp | 23 | 2 | 1 | 2 | 2 | 2 | 0 | 0 | 1 | 8.7 | 5.2 | 14.7 | 7.9 | 0.8 | 1.5 | 1.54 |
| Ray Black | NYN | mr | 29 | 7 | 2 | 1 | 3 | 8 | 0 | 0 | 2 | 6.3 | 5.8 | 12.7 | 14.2 | 1.2 | 2.4 | 1.35 |
| Richard Bleier* | ChA | mr | 32 | 4 | 1 | 0 | 2 | 2 | 0 | 0 | 2 | 9.1 | 1.7 | 11.2 | 5.4 | 0.8 | 3.3 | 1.20 |
| Jerry Blevins* | Sea | mr | 35 | 8 | 4 | 1 | 3 | 6 | 2 | 1 | 5 | 9.8 | 4.9 | 15.1 | 9.0 | 1.1 | 1.8 | 1.63 |
| Ben Bowden* | Oak | mr | 24 | 4 | 3 | 1 | 2 | 8 | 0 | 1 | 0 | 9.6 | 7.1 | 17.0 | 8.5 | 1.7 | 1.2 | 1.85 |
| Matthew Bowman | ChN | mr | 28 | 8 | 4 | 0 | 2 | 2 | 0 | 0 | 0 | 8.6 | 2.2 | 11.0 | 8.8 | 1.4 | 4.1 | 1.19 |
| Matt Boyd* | | sp | 28 | 17 | 8 | 0 | 9 | 5 | 0 | 3 | 6 | 7.5 | 2.1 | 10.1 | 9.1 | 0.7 | 4.3 | 1.07 |
| Brad Brach | SD | cl | 33 | 3 | 0 | 5 | 2 | 4 | 1 | 0 | 2 | 10.1 | 4.0 | 14.4 | 9.6 | 0.9 | 2.4 | 1.57 |
| Archie Bradley | | mr | 26 | 5 | 1 | 2 | 4 | 1 | 0 | 1 | 0 | 9.1 | 3.4 | 12.9 | 8.3 | 1.2 | 2.5 | 1.38 |
| Ryan Brasier | Mil | mr | 31 | 2 | 4 | 0 | 1 | 7 | 0 | 0 | 3 | 10.7 | 2.7 | 13.5 | 6.8 | 1.0 | 2.5 | 1.49 |
| Steven Brault* | Cle | mr | 27 | 3 | 3 | 0 | 1 | 2 | 1 | 0 | 1 | 9.3 | 3.8 | 13.3 | 8.5 | 0.5 | 2.3 | 1.44 |
| John Brebbia | Min | mr | 29 | 9 | 4 | 0 | 1 | 2 | 0 | 0 | 3 | 5.9 | 1.5 | 7.5 | 11.5 | 1.0 | 7.4 | 0.83 |
| Brandon Brennan | ChN | mr | 27 | 3 | 0 | 0 | 3 | 9 | 0 | 1 | 4 | 6.5 | 4.8 | 11.8 | 7.2 | 0.0 | 1.5 | 1.25 |
| Colten Brewer | Cle | mr | 26 | 2 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 8.7 | 4.6 | 13.2 | 8.7 | 0.0 | 1.9 | 1.47 |
| Zack Britton* | NYA | cl | 31 | 6 | 4 | 2 | 1 | 11 | 0 | 0 | 3 | 8.6 | 3.4 | 12.1 | 8.9 | 0.7 | 2.6 | 1.33 |
| Walker Buehler | Cle | sp | 24 | 14 | 9 | 0 | 6 | 6 | 0 | 1 | 2 | 9.0 | 3.0 | 12.4 | 10.4 | 1.6 | 3.5 | 1.34 |
| Madison Bumgarner* | Mia | sp | 29 | 21 | 8 | 2 | 7 | 3 | 1 | 5 | 5 | 7.2 | 2.8 | 10.3 | 9.4 | 1.0 | 3.3 | 1.12 |
| Aaron Bummer* | LAA | mr | 25 | 3 | 5 | 1 | 1 | 3 | 0 | 0 | 3 | 7.1 | 2.8 | 10.0 | 7.7 | 0.6 | 2.7 | 1.10 |
| Dylan Bundy | LAA | sp | 26 | 27 | 8 | 1 | 5 | 2 | 1 | 0 | 4 | 7.5 | 2.4 | 10.1 | 9.0 | 1.2 | 3.8 | 1.10 |
| Brock Burke* | ChN | sp | 22 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 10.5 | 2.0 | 12.5 | 9.9 | 3.3 | 5.0 | 1.39 |
| Corbin Burnes | Ari | mr | 24 | 1 | 0 | 1 | 3 | 6 | 0 | 2 | 3 | 11.2 | 2.8 | 14.4 | 7.8 | 2.2 | 2.8 | 1.55 |
| Matt Bush | SF | mr | 33 | 3 | 4 | 1 | 1 | 2 | 0 | 1 | 2 | 8.0 | 3.1 | 11.3 | 9.3 | 0.7 | 3.0 | 1.24 |
| Ty Buttrey | Ari | mr | 26 | 10 | 3 | 1 | 4 | 5 | 0 | 2 | 2 | 8.5 | 4.7 | 13.6 | 9.8 | 0.6 | 2.1 | 1.46 |
| Genesis Cabrera* | Ari | sp | 22 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 11.0 | 5.5 | 16.5 | 9.4 | 1.1 | 1.7 | 1.84 |
| Trevor Cahill | | sp | 31 | 11 | 6 | 1 | 5 | 3 | 0 | 1 | 4 | 9.2 | 3.5 | 13.3 | 7.3 | 1.0 | 2.1 | 1.41 |
| Griffin Canning | Tam | sp | 23 | 16 | 3 | 0 | 5 | 8 | 0 | 1 | 2 | 8.9 | 3.3 | 12.6 | 7.3 | 1.3 | 2.2 | 1.36 |
| Shane Carle | Pit | mr | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.0 | 6.0 | 15.0 | 6.0 | 0.0 | 1.0 | 1.67 |
| Carlos Carrasco | Was | sp | 32 | 5 | 0 | 0 | 3 | 0 | 0 | 1 | 2 | 8.6 | 1.7 | 10.6 | 9.6 | 1.5 | 5.5 | 1.15 |
| Cody Carroll | NYN | mr | 26 | 3 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 8.3 | 4.6 | 13.3 | 9.6 | 0.8 | 2.1 | 1.43 |
| Diego Castillo | LAN | mr | 25 | 1 | 1 | 2 | 1 | 3 | 0 | 0 | 1 | 6.0 | 4.2 | 10.5 | 10.9 | 0.0 | 2.6 | 1.13 |
| Luis Castillo | | sp | 26 | 6 | 4 | 3 | 5 | 4 | 1 | 1 | 2 | 8.1 | 2.3 | 10.6 | 9.3 | 1.2 | 4.1 | 1.15 |
| Dylan Cease | Mil | sp | 23 | 13 | 4 | 0 | 4 | 13 | 2 | 2 | 4 | 6.9 | 4.3 | 11.5 | 8.7 | 1.3 | 2.0 | 1.24 |
| Xavier Cedeno* | Pit | mr | 32 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 7.4 | 7.4 | 15.5 | 9.4 | 0.0 | 1.3 | 1.65 |
| Luis Cessa | | sp | 27 | 1 | 1 | 0 | 2 | 3 | 1 | 0 | 1 | 8.8 | 2.2 | 11.5 | 6.6 | 1.2 | 3.0 | 1.23 |
| Jhoulys Chacin | Det | sp | 31 | 9 | 8 | 0 | 7 | 2 | 0 | 0 | 5 | 6.9 | 3.7 | 11.1 | 8.0 | 1.1 | 2.2 | 1.18 |
| Andrew Chafin* | | mr | 29 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 8.0 | 3.2 | 11.5 | 11.2 | 1.3 | 3.5 | 1.25 |
| Aroldis Chapman* | | cl | 31 | 11 | 1 | 0 | 5 | 4 | 0 | 0 | 1 | 8.0 | 4.0 | 12.8 | 14.3 | 1.4 | 3.6 | 1.34 |
| JT Chargois | LAN | mr | 28 | 3 | 0 | 0 | 4 | 6 | 0 | 1 | 4 | 7.8 | 5.3 | 14.3 | 12.1 | 1.6 | 2.3 | 1.45 |
| Jesse Chavez | StL | mr | 35 | 11 | 3 | 1 | 3 | 0 | 0 | 1 | 2 | 6.9 | 2.4 | 9.4 | 8.2 | 0.9 | 3.5 | 1.03 |
| Yonny Chirinos | ChN | sp | 25 | 2 | 4 | 1 | 2 | 2 | 0 | 0 | 1 | 10.3 | 2.3 | 13.0 | 6.3 | 2.0 | 2.7 | 1.40 |
| Adam Cimber | LAA | mr | 28 | 0 | 1 | 1 | 9 | 0 | 0 | 0 | 2 | 7.9 | 1.3 | 10.4 | 6.3 | 1.2 | 4.9 | 1.02 |
| Tony Cingrani* | Hou | mr | 29 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 3.2 | 3.2 | 6.4 | 14.3 | 0.0 | 4.5 | 0.71 |
| Steve Cishek | Min | mr | 33 | 4 | 4 | 0 | 3 | 4 | 0 | 0 | 2 | 7.3 | 3.1 | 10.8 | 9.7 | 1.0 | 3.1 | 1.16 |
| Aaron Civale | Was | sp | 24 | 2 | 1 | 2 | 4 | 5 | 0 | 1 | 2 | 7.1 | 1.5 | 9.1 | 5.6 | 1.2 | 3.8 | 0.95 |
| Alex Claudio* | | mr | 27 | 4 | 5 | 8 | 3 | 0 | 0 | 1 | 1 | 11.6 | 2.8 | 14.7 | 7.7 | 0.4 | 2.7 | 1.59 |
| Michael Clevinger | Bos | sp | 28 | 17 | 11 | 0 | 1 | 5 | 0 | 0 | 2 | 7.9 | 4.1 | 12.1 | 9.9 | 1.3 | 2.4 | 1.33 |
| Tyler Clippard | Bal | mr | 34 | 11 | 5 | 0 | 3 | 10 | 0 | 0 | 3 | 7.9 | 2.9 | 11.2 | 9.9 | 1.7 | 3.4 | 1.20 |
| Corbin Clouse* | Cle | mr | 24 | 2 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 11.6 | 3.3 | 16.0 | 11.6 | 1.7 | 3.5 | 1.65 |
| Gerrit Cole | LAA | sp | 28 | 22 | 6 | 0 | 5 | 5 | 1 | 1 | 5 | 7.6 | 2.2 | 10.1 | 10.4 | 0.8 | 4.6 | 1.10 |
| Taylor Cole | ChN | mr | 29 | 1 | 1 | 0 | 5 | 3 | 0 | 0 | 0 | 8.2 | 3.0 | 11.9 | 11.2 | 1.4 | 3.7 | 1.24 |
| Alex Colome | | cl | 30 | 6 | 3 | 3 | 7 | 10 | 0 | 0 | 1 | 8.8 | 3.0 | 12.9 | 10.0 | 0.6 | 3.3 | 1.32 |
| Patrick Corbin* | Bal | sp | 29 | 8 | 4 | 0 | 8 | 8 | 0 | 0 | 3 | 7.2 | 2.5 | 10.1 | 10.2 | 1.3 | 4.0 | 1.08 |
| Nestor Cortes* | Tam | sp | 24 | 1 | 3 | 0 | 2 | 2 | 0 | 1 | 3 | 8.7 | 4.7 | 13.6 | 6.3 | 1.2 | 1.3 | 1.49 |
| Kyle Crick | | mr | 26 | 7 | 2 | 0 | 1 | 4 | 1 | 0 | 3 | 7.8 | 5.4 | 13.4 | 9.5 | 0.8 | 1.8 | 1.47 |
| Kyle Crockett* | Min | mr | 27 | 1 | 2 | 0 | 1 | 1 | 1 | 1 | 1 | 7.9 | 1.4 | 9.5 | 7.9 | 0.5 | 5.7 | 1.03 |
| Yu Darvish | NYA | sp | 32 | 27 | 8 | 0 | 9 | 13 | 1 | 0 | 5 | 8.3 | 3.3 | 12.0 | 10.0 | 1.1 | 3.0 | 1.29 |
| Zach Davies | ChA | sp | 26 | 8 | 5 | 0 | 3 | 2 | 0 | 1 | 1 | 9.0 | 3.1 | 12.3 | 6.6 | 1.5 | 2.2 | 1.34 |
| Austin Davis* | | mr | 26 | 7 | 3 | 1 | 0 | 10 | 0 | 1 | 2 | 7.5 | 3.3 | 10.8 | 10.8 | 0.9 | 3.3 | 1.20 |
| Wade Davis | Det | cl | 33 | 1 | 3 | 0 | 2 | 3 | 0 | 0 | 0 | 5.5 | 3.8 | 9.6 | 11.2 | 0.4 | 3.0 | 1.03 |
| Grant Dayton* | KC | mr | 31 | 2 | 3 | 0 | 1 | 1 | 0 | 1 | 1 | 8.0 | 4.2 | 12.5 | 11.9 | 1.8 | 2.9 | 1.36 |
| Enyel de los Santos | Oak | sp | 23 | 7 | 3 | 0 | 7 | 3 | 0 | 0 | 3 | 9.1 | 4.8 | 14.7 | 8.3 | 1.1 | 1.7 | 1.55 |
| Dean Deetz | StL | mr | 25 | 3 | 3 | 0 | 3 | 6 | 0 | 1 | 2 | 7.6 | 5.0 | 13.1 | 10.1 | 0.9 | 2.0 | 1.40 |
| Jacob deGrom | Tor | sp | 31 | 18 | 5 | 0 | 6 | 2 | 1 | 0 | 5 | 7.1 | 2.3 | 9.7 | 11.0 | 1.0 | 4.7 | 1.05 |
| Randall Delgado | Mil | mr | 29 | 4 | 1 | 1 | 1 | 5 | 0 | 1 | 3 | 11.3 | 7.0 | 18.6 | 6.8 | 1.1 | 1.0 | 2.03 |
| Anthony DeSclafani | Ari | sp | 29 | 8 | 7 | 2 | 6 | 5 | 0 | 2 | 5 | 8.0 | 2.2 | 10.6 | 8.4 | 1.3 | 3.8 | 1.14 |
| Chris Devenski | Det | mr | 28 | 9 | 1 | 1 | 3 | 2 | 0 | 1 | 1 | 8.0 | 2.2 | 10.6 | 9.2 | 1.2 | 4.2 | 1.13 |
| Edwin Diaz | Cle | cl | 25 | 6 | 5 | 0 | 8 | 4 | 1 | 0 | 0 | 7.3 | 4.0 | 12.5 | 14.2 | 1.5 | 3.5 | 1.26 |
| Jumbo Diaz | NYN | mr | 35 | 11 | 4 | 2 | 4 | 12 | 0 | 1 | 2 | 10.2 | 5.5 | 16.2 | 9.4 | 1.4 | 1.7 | 1.74 |
| Miguel Diaz | Tex | mr | 24 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12.6 | 12.6 | 25.2 | 10.8 | 1.8 | 0.9 | 2.80 |
| Phillip Diehl* | Bos | mr | 24 | 21 | 9 | 1 | 8 | 6 | 0 | 0 | 4 | 7.8 | 4.1 | 12.5 | 10.2 | 0.5 | 2.5 | 1.33 |
| Jake Diekman* | | mr | 32 | 3 | 2 | 1 | 0 | 1 | 1 | 0 | 0 | 5.9 | 4.3 | 10.3 | 12.1 | 0.3 | 2.8 | 1.14 |
| Kyle Dohy* | Hou | mr | 22 | 7 | 8 | 0 | 6 | 40 | 0 | 0 | 3 | 6.1 | 10.1 | 16.8 | 13.9 | 1.4 | 1.4 | 1.80 |
| Seranthony Dominguez | StL | cl | 24 | 0 | 0 | 1 | 0 | 6 | 0 | 0 | 0 | 5.9 | 4.0 | 9.9 | 12.4 | 0.5 | 3.1 | 1.10 |
| Sean Doolittle* | | cl | 32 | 4 | 3 | 2 | 0 | 2 | 1 | 0 | 4 | 5.8 | 1.2 | 7.0 | 11.0 | 1.3 | 9.3 | 0.78 |
| Oliver Drake | Mia | mr | 32 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 4.8 | 1.6 | 6.4 | 12.7 | 0.0 | 8.0 | 0.71 |
| Tyler Duffey | | mr | 28 | 2 | 2 | 2 | 0 | 3 | 0 | 0 | 2 | 8.0 | 2.3 | 10.3 | 8.3 | 0.3 | 3.6 | 1.15 |
| Danny Duffy* | SF | sp | 30 | 5 | 5 | 4 | 5 | 4 | 1 | 2 | 5 | 8.7 | 3.5 | 12.7 | 7.2 | 0.6 | 2.1 | 1.36 |
| Robert Dugger | Tam | sp | 23 | 3 | 1 | 0 | 0 | 3 | 0 | 0 | 0 | 11.8 | 3.0 | 14.8 | 8.0 | 1.5 | 2.6 | 1.65 |
| Zach Duke* | KC | mr | 36 | 3 | 1 | 0 | 1 | 3 | 0 | 1 | 0 | 7.8 | 5.2 | 13.3 | 8.8 | 0.3 | 1.7 | 1.45 |
| Justin Dunn | Ari | sp | 23 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 12.0 | 1.5 | 15.0 | 4.5 | 3.0 | 3.0 | 1.50 |
| Jon Duplantier | Col | sp | 24 | 7 | 2 | 0 | 3 | 4 | 0 | 2 | 1 | 8.2 | 3.7 | 12.4 | 8.1 | 1.2 | 2.2 | 1.32 |
| Sam Dyson | Tam | mr | 31 | 4 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 12.6 | 3.8 | 16.3 | 6.9 | 2.5 | 1.8 | 1.81 |
| Carl Edwards Jr. | | mr | 27 | 4 | 0 | 0 | 2 | 6 | 0 | 0 | 2 | 5.7 | 6.0 | 12.2 | 12.5 | 0.5 | 2.1 | 1.30 |
| Zach Eflin | Cle | sp | 25 | 19 | 4 | 0 | 7 | 7 | 0 | 2 | 4 | 9.4 | 2.3 | 12.1 | 7.8 | 1.0 | 3.4 | 1.30 |
| Jerad Eickhoff | LAA | sp | 28 | 9 | 4 | 4 | 2 | 3 | 0 | 1 | 1 | 8.6 | 2.7 | 11.5 | 9.7 | 1.1 | 3.6 | 1.25 |
| Roenis Elias* | Cle | mr | 30 | 5 | 1 | 0 | 1 | 4 | 0 | 0 | 0 | 9.2 | 4.9 | 14.3 | 6.3 | 1.2 | 1.3 | 1.57 |
| Seth Elledge | LAA | mr | 23 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 19.6 | 2.5 | 22.1 | 9.8 | 7.4 | 4.0 | 2.45 |
| Nathan Eovaldi | LAA | sp | 29 | 4 | 3 | 0 | 1 | 2 | 0 | 0 | 0 | 9.9 | 1.8 | 11.8 | 6.8 | 1.8 | 3.7 | 1.30 |
| Robbie Erlin* | | mr | 28 | 7 | 12 | 2 | 2 | 8 | 1 | 0 | 3 | 7.4 | 1.6 | 9.1 | 7.3 | 0.7 | 4.6 | 1.00 |
| Luis Escobar | Tor | sp | 23 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16.2 | 0.0 | 16.2 | 5.4 | 5.4 | 99.0 | 1.80 |
| Raynel Espinal | NYN | mr | 25 | 3 | 6 | 0 | 9 | 5 | 0 | 2 | 3 | 7.2 | 2.4 | 10.3 | 9.9 | 1.2 | 4.1 | 1.07 |
| Carlos Estevez | Min | mr | 26 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 7.9 | 3.2 | 12.7 | 9.5 | 1.6 | 3.0 | 1.24 |
| Tommy Eveld | Cle | mr | 25 | 1 | 1 | 0 | 2 | 3 | 0 | 0 | 0 | 6.5 | 4.0 | 11.2 | 9.3 | 0.6 | 2.3 | 1.17 |
| Alex Faedo | Hou | sp | 23 | 9 | 5 | 0 | 6 | 5 | 0 | 1 | 7 | 9.7 | 3.8 | 14.0 | 5.5 | 0.9 | 1.4 | 1.50 |
| Jeurys Familia | | cl | 29 | 3 | 3 | 0 | 3 | 6 | 0 | 0 | 3 | 9.6 | 3.9 | 14.0 | 10.7 | 0.7 | 2.8 | 1.50 |
| Jacob Faria | Tam | sp | 25 | 5 | 2 | 0 | 4 | 3 | 0 | 0 | 1 | 9.9 | 6.5 | 17.1 | 9.5 | 1.3 | 1.5 | 1.82 |
| Erick Fedde | Cle | sp | 26 | 7 | 1 | 1 | 4 | 0 | 0 | 0 | 1 | 9.3 | 3.5 | 13.4 | 8.5 | 1.6 | 2.4 | 1.42 |
| Michael Feliz | Oak | mr | 26 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 18.0 | 0.0 | 18.0 | 9.0 | 9.0 | 99.0 | 2.00 |
| Caleb Ferguson* | Col | mr | 22 | 12 | 12 | 0 | 8 | 5 | 2 | 3 | 4 | 8.2 | 3.9 | 12.5 | 10.2 | 1.2 | 2.6 | 1.34 |
| Junior Fernandez | StL | mr | 22 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 9.9 | 8.5 | 18.5 | 7.1 | 1.4 | 0.8 | 2.05 |
| J.P. Feyereisen | Was | mr | 26 | 0 | 1 | 0 | 5 | 1 | 1 | 0 | 0 | 9.3 | 3.9 | 14.8 | 11.9 | 1.3 | 3.1 | 1.46 |
| Josh Fields | Phi | mr | 33 | 2 | 3 | 2 | 3 | 1 | 0 | 0 | 0 | 7.3 | 2.3 | 10.0 | 9.6 | 0.9 | 4.3 | 1.07 |
| Mike Fiers | | sp | 34 | 10 | 7 | 3 | 10 | 12 | 0 | 1 | 4 | 8.1 | 2.3 | 10.9 | 7.2 | 1.3 | 3.2 | 1.15 |
| Jack Flaherty | Bal | sp | 23 | 9 | 6 | 0 | 6 | 5 | 2 | 0 | 1 | 6.5 | 2.4 | 9.2 | 10.1 | 1.4 | 4.2 | 0.99 |
| Chris Flexen | Hou | sp | 24 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10.4 | 2.1 | 12.5 | 12.5 | 0.0 | 6.0 | 1.38 |
| Dylan Floro | Cle | mr | 28 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 11.3 | 5.2 | 16.5 | 6.0 | 2.4 | 1.2 | 1.84 |
| Mike Foltynewicz | | sp | 27 | 4 | 5 | 2 | 4 | 1 | 1 | 4 | 3 | 8.5 | 2.7 | 11.4 | 8.8 | 1.9 | 3.3 | 1.24 |
| Wilmer Font | SF | sp | 29 | 2 | 0 | 1 | 4 | 1 | 0 | 2 | 1 | 9.0 | 1.8 | 11.2 | 8.9 | 1.1 | 4.9 | 1.20 |
| Kyle Freeland* | ChA | sp | 26 | 20 | 7 | 0 | 14 | 4 | 0 | 0 | 2 | 8.5 | 3.3 | 12.4 | 7.6 | 1.2 | 2.3 | 1.31 |
| Max Fried* | Ari | sp | 25 | 5 | 0 | 0 | 1 | 6 | 0 | 1 | 0 | 6.6 | 4.9 | 11.7 | 9.6 | 0.9 | 2.0 | 1.28 |
| Jace Fry* | Bos | mr | 25 | 5 | 3 | 0 | 2 | 6 | 0 | 1 | 1 | 8.4 | 4.9 | 13.7 | 10.0 | 1.0 | 2.0 | 1.48 |
| Paul Fry* | ChA | mr | 26 | 7 | 5 | 0 | 3 | 2 | 1 | 0 | 0 | 7.2 | 4.0 | 11.5 | 9.5 | 0.5 | 2.4 | 1.24 |
| Carson Fulmer | Hou | sp | 25 | 0 | 1 | 0 | 3 | 4 | 0 | 1 | 0 | 8.6 | 5.5 | 14.8 | 9.1 | 0.8 | 1.7 | 1.56 |
| Kyle Funkhouser | KC | sp | 25 | 8 | 0 | 0 | 0 | 5 | 1 | 0 | 3 | 7.9 | 5.3 | 13.2 | 7.0 | 0.9 | 1.3 | 1.46 |
| Drew Gagnon | LAA | sp | 29 | 5 | 0 | 0 | 2 | 7 | 0 | 0 | 0 | 7.7 | 3.1 | 11.2 | 7.5 | 1.5 | 2.4 | 1.20 |
| Giovanny Gallegos | SF | mr | 27 | 14 | 4 | 2 | 4 | 5 | 0 | 1 | 2 | 7.3 | 3.7 | 11.2 | 10.2 | 1.2 | 2.8 | 1.21 |
| Zac Gallen | Cin | sp | 23 | 4 | 4 | 1 | 4 | 1 | 0 | 0 | 1 | 9.8 | 2.3 | 12.7 | 7.6 | 1.9 | 3.3 | 1.34 |
| John Gant | Hou | sp | 26 | 22 | 10 | 0 | 6 | 8 | 1 | 0 | 7 | 7.8 | 3.9 | 11.9 | 7.9 | 0.9 | 2.0 | 1.29 |
| Edgar Garcia | Phi | mr | 22 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 9.0 | 18.0 | 36.0 | 9.0 | 0.0 | 0.5 | 3.00 |
| Jarlin Garcia* | Cle | mr | 26 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 12.0 | 4.5 | 16.5 | 4.5 | 3.8 | 1.0 | 1.83 |
| Yimi Garcia | SD | mr | 28 | 9 | 3 | 5 | 8 | 0 | 1 | 0 | 0 | 7.2 | 2.5 | 10.8 | 9.3 | 1.1 | 3.8 | 1.08 |
| Amir Garrett* | Tex | mr | 27 | 10 | 2 | 1 | 4 | 6 | 0 | 1 | 3 | 10.0 | 4.5 | 15.0 | 11.7 | 1.1 | 2.6 | 1.61 |
| Kevin Gausman | | sp | 28 | 10 | 7 | 0 | 8 | 4 | 0 | 5 | 6 | 8.8 | 2.5 | 11.7 | 7.9 | 1.0 | 3.2 | 1.25 |
| Cory Gearrin | Atl | mr | 33 | 2 | 1 | 1 | 3 | 1 | 1 | 0 | 0 | 9.0 | 4.4 | 14.1 | 7.8 | 0.5 | 1.8 | 1.49 |
| Domingo German | | sp | 26 | 4 | 7 | 0 | 4 | 6 | 0 | 1 | 2 | 8.9 | 4.4 | 13.9 | 8.6 | 1.4 | 1.9 | 1.48 |
| Ian Gibaut | ChN | mr | 25 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 8.3 | 4.2 | 12.5 | 14.5 | 0.0 | 3.5 | 1.38 |
| Kyle Gibson | Bos | sp | 31 | 16 | 10 | 1 | 6 | 6 | 1 | 0 | 5 | 6.9 | 3.3 | 10.4 | 7.8 | 1.0 | 2.3 | 1.13 |
| Ken Giles | Sea | cl | 28 | 7 | 4 | 2 | 1 | 7 | 0 | 1 | 3 | 8.1 | 3.0 | 11.2 | 11.6 | 0.4 | 3.9 | 1.23 |
| Kevin Ginkel | KC | mr | 25 | 5 | 2 | 0 | 3 | 8 | 0 | 1 | 0 | 6.5 | 3.6 | 10.4 | 8.6 | 0.9 | 2.4 | 1.12 |
| Lucas Giolito | Hou | sp | 24 | 7 | 1 | 0 | 1 | 2 | 0 | 0 | 1 | 7.0 | 4.6 | 11.8 | 7.3 | 0.9 | 1.6 | 1.28 |
| Mychal Givens | | mr | 29 | 3 | 2 | 2 | 3 | 1 | 0 | 1 | 4 | 7.6 | 3.9 | 12.0 | 9.9 | 0.9 | 2.5 | 1.27 |
| Tyler Glasnow | Oak | sp | 25 | 9 | 3 | 0 | 4 | 4 | 0 | 0 | 1 | 6.4 | 4.5 | 11.5 | 10.5 | 0.7 | 2.3 | 1.22 |
| Zack Godley | NYN | sp | 29 | 12 | 12 | 0 | 4 | 5 | 0 | 2 | 4 | 7.4 | 3.9 | 11.5 | 8.6 | 0.8 | 2.2 | 1.25 |
| Luiz Gohara* | Sea | sp | 22 | 1 | 1 | 0 | 1 | 2 | 0 | 0 | 1 | 11.0 | 5.5 | 16.8 | 9.0 | 2.3 | 1.6 | 1.84 |
| Austin Gomber* | StL | sp | 25 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 1 | 7.8 | 6.4 | 14.9 | 9.2 | 1.4 | 1.4 | 1.58 |
| Stephen Gonsalves* | KC | sp | 24 | 2 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 5.6 | 3.1 | 9.2 | 8.9 | 0.6 | 2.9 | 0.96 |
| Tony Gonsolin | Min | sp | 25 | 4 | 1 | 0 | 1 | 6 | 0 | 0 | 2 | 12.3 | 6.0 | 18.6 | 9.2 | 1.9 | 1.5 | 2.04 |
| Marco Gonzales* | StL | sp | 27 | 11 | 9 | 2 | 4 | 0 | 1 | 3 | 3 | 8.5 | 1.7 | 10.4 | 7.7 | 0.8 | 4.6 | 1.13 |
| Chi Chi Gonzalez | ChN | sp | 27 | 13 | 8 | 0 | 9 | 5 | 0 | 4 | 4 | 8.1 | 3.7 | 12.3 | 5.2 | 0.3 | 1.4 | 1.31 |
| Gio Gonzalez* | | sp | 33 | 8 | 7 | 1 | 2 | 5 | 0 | 2 | 2 | 7.6 | 3.8 | 11.6 | 9.0 | 1.3 | 2.4 | 1.27 |
| Nick Goody | | mr | 27 | 8 | 1 | 0 | 0 | 2 | 0 | 0 | 1 | 9.2 | 3.2 | 12.4 | 11.7 | 2.7 | 3.6 | 1.37 |
| Trevor Gott | Atl | mr | 26 | 1 | 2 | 0 | 1 | 4 | 1 | 3 | 5 | 6.1 | 4.4 | 10.7 | 8.3 | 0.3 | 1.9 | 1.17 |
| Matt Grace* | LAA | mr | 30 | 2 | 1 | 1 | 4 | 2 | 1 | 0 | 3 | 7.9 | 2.0 | 10.4 | 4.7 | 0.9 | 2.4 | 1.10 |
| Jon Gray | Phi | sp | 27 | 9 | 7 | 4 | 3 | 6 | 0 | 8 | 6 | 8.2 | 2.2 | 10.6 | 8.0 | 1.0 | 3.7 | 1.16 |
| Sonny Gray | SF | sp | 29 | 10 | 7 | 4 | 10 | 16 | 0 | 6 | 6 | 8.4 | 4.2 | 13.0 | 8.2 | 1.1 | 1.9 | 1.40 |
| Chad Green | ChN | mr | 28 | 4 | 1 | 1 | 3 | 5 | 0 | 1 | 1 | 5.8 | 2.8 | 9.0 | 10.0 | 1.0 | 3.6 | 0.96 |
| Shane Greene | Bal | cl | 30 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 8.2 | 3.1 | 11.9 | 7.5 | 1.9 | 2.4 | 1.26 |
| Luke Gregerson | Phi | mr | 35 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 5.8 | 1.8 | 7.5 | 10.6 | 0.4 | 6.0 | 0.84 |
| Zack Greinke | | sp | 35 | 10 | 9 | 0 | 3 | 0 | 0 | 0 | 3 | 6.8 | 2.0 | 8.8 | 8.4 | 1.4 | 4.3 | 0.97 |
| Robert Gsellman | Min | cl | 25 | 1 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | 15.8 | 1.1 | 18.0 | 7.9 | 0.0 | 7.0 | 1.88 |
| Junior Guerra | Tam | sp | 34 | 9 | 0 | 0 | 4 | 9 | 0 | 0 | 2 | 8.1 | 3.6 | 12.2 | 7.8 | 0.9 | 2.2 | 1.30 |
| Tayron Guerrero | NYA | mr | 28 | 1 | 3 | 0 | 0 | 2 | 0 | 0 | 1 | 8.3 | 5.0 | 13.3 | 10.8 | 1.8 | 2.1 | 1.48 |
| Vladimir Gutierrez | Cin | sp | 23 | 10 | 0 | 3 | 2 | 3 | 0 | 1 | 3 | 8.3 | 4.6 | 13.5 | 8.3 | 0.0 | 1.8 | 1.44 |
| Jorge Guzman | NYA | sp | 23 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 10.8 | 10.8 | 21.6 | 3.6 | 1.8 | 0.3 | 2.40 |
| Josh Hader* | Oak | mr | 25 | 4 | 3 | 0 | 3 | 1 | 1 | 0 | 3 | 5.1 | 4.7 | 10.0 | 16.9 | 0.7 | 3.6 | 1.08 |
| Matt Hall* | ChN | mr | 25 | 3 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 12.2 | 4.5 | 17.4 | 9.6 | 1.9 | 2.1 | 1.86 |
| Cole Hamels* | | sp | 35 | 13 | 11 | 0 | 6 | 5 | 3 | 2 | 6 | 7.7 | 3.5 | 11.5 | 9.1 | 1.1 | 2.6 | 1.24 |
| Ian Hamilton | Tam | mr | 24 | 0 | 0 | 1 | 2 | 1 | 0 | 0 | 0 | 13.8 | 4.6 | 19.5 | 8.6 | 2.9 | 1.9 | 2.04 |
| Brad Hand* | SD | cl | 29 | 10 | 4 | 4 | 3 | 6 | 0 | 0 | 2 | 8.3 | 2.8 | 11.4 | 10.7 | 1.0 | 3.9 | 1.22 |
| Alec Hansen | KC | sp | 24 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 18.0 | 4.5 | 22.5 | 13.5 | 0.0 | 3.0 | 2.50 |
| J.A. Happ* | ChN | sp | 36 | 14 | 5 | 5 | 2 | 3 | 1 | 6 | 5 | 8.0 | 2.7 | 10.7 | 9.3 | 0.9 | 3.5 | 1.18 |
| Blaine Hardy* | Mil | mr | 32 | 23 | 6 | 1 | 4 | 8 | 0 | 3 | 8 | 7.2 | 2.4 | 9.8 | 7.7 | 0.7 | 3.2 | 1.07 |
| Ryne Harper | ChN | mr | 30 | 3 | 1 | 3 | 3 | 9 | 0 | 3 | 3 | 7.6 | 3.6 | 11.6 | 8.3 | 1.1 | 2.3 | 1.25 |
| Will Harris | Pit | mr | 34 | 5 | 2 | 1 | 1 | 4 | 0 | 1 | 4 | 8.6 | 2.0 | 10.7 | 8.3 | 0.5 | 4.1 | 1.18 |
| Donnie Hart* | Mil | mr | 28 | 7 | 3 | 1 | 2 | 7 | 1 | 0 | 1 | 9.3 | 4.1 | 13.7 | 5.7 | 0.6 | 1.4 | 1.49 |
| Hunter Harvey | | sp | 24 | 5 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 14.8 | 4.0 | 18.9 | 8.8 | 0.7 | 2.2 | 2.10 |
| Matt Harvey | Pit | sp | 30 | 1 | 0 | 0 | 4 | 4 | 0 | 2 | 6 | 11.2 | 2.3 | 14.1 | 5.9 | 0.7 | 2.5 | 1.50 |
| Andrew Heaney* | Phi | sp | 28 | 8 | 6 | 1 | 7 | 11 | 0 | 2 | 3 | 9.3 | 2.8 | 12.6 | 9.1 | 0.8 | 3.3 | 1.34 |
| Ben Heller | LAA | mr | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.4 | 1.4 | 2.8 | 5.7 | 0.0 | 4.0 | 0.32 |
| Heath Hembree | SD | mr | 30 | 11 | 2 | 1 | 0 | 4 | 0 | 1 | 3 | 7.8 | 3.0 | 10.7 | 11.2 | 1.0 | 3.8 | 1.19 |
| Kyle Hendricks | | sp | 29 | 14 | 5 | 0 | 4 | 3 | 1 | 5 | 2 | 7.1 | 2.2 | 9.5 | 7.2 | 1.1 | 3.3 | 1.04 |
| Liam Hendriks | ChN | mr | 30 | 24 | 3 | 0 | 5 | 10 | 2 | 3 | 1 | 6.9 | 2.7 | 9.8 | 10.6 | 0.6 | 3.9 | 1.07 |
| Jimmy Herget | Col | mr | 25 | 1 | 1 | 0 | 2 | 1 | 0 | 1 | 3 | 8.3 | 3.0 | 11.9 | 10.6 | 0.8 | 3.5 | 1.26 |
| Darwinzon Hernandez* | Tor | sp | 22 | 2 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 5.9 | 6.8 | 12.7 | 7.6 | 2.5 | 1.1 | 1.41 |
| David Hernandez | Mil | mr | 34 | 5 | 4 | 1 | 7 | 7 | 0 | 1 | 2 | 9.4 | 3.5 | 13.6 | 7.9 | 0.5 | 2.3 | 1.43 |
| Elieser Hernandez | | mr | 24 | 1 | 3 | 0 | 2 | 0 | 0 | 0 | 0 | 10.9 | 4.0 | 15.5 | 3.6 | 2.3 | 0.9 | 1.65 |
| Felix Hernandez | Tor | sp | 33 | 3 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 6.0 | 0.9 | 7.2 | 7.5 | 0.3 | 8.3 | 0.77 |
| Jonathan Hernandez | Tor | sp | 22 | 0 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 8.6 | 4.9 | 13.5 | 13.5 | 1.2 | 2.8 | 1.50 |
| Kelvin Herrera | NYN | cl | 29 | 9 | 5 | 3 | 7 | 5 | 1 | 1 | 1 | 7.8 | 3.3 | 11.9 | 8.5 | 1.5 | 2.5 | 1.24 |
| Jordan Hicks | Min | mr | 22 | 6 | 0 | 2 | 3 | 1 | 1 | 0 | 2 | 6.0 | 4.8 | 11.5 | 8.7 | 0.2 | 1.8 | 1.21 |
| Rich Hill* | Pit | sp | 39 | 7 | 2 | 0 | 4 | 0 | 0 | 3 | 0 | 5.4 | 2.6 | 8.5 | 10.2 | 0.8 | 3.9 | 0.89 |
| Yoshihisa Hirano | LAN | mr | 35 | 5 | 1 | 1 | 7 | 5 | 0 | 0 | 2 | 9.1 | 2.3 | 12.3 | 9.3 | 1.4 | 4.1 | 1.27 |
| Jeff Hoffman | Sea | sp | 26 | 13 | 2 | 0 | 5 | 12 | 0 | 1 | 9 | 8.5 | 4.7 | 13.5 | 7.3 | 0.7 | 1.5 | 1.47 |
| Jonathan Holder | | mr | 26 | 4 | 0 | 0 | 4 | 1 | 0 | 1 | 1 | 9.0 | 2.5 | 12.1 | 8.2 | 0.6 | 3.3 | 1.28 |
| Greg Holland | ChA | cl | 33 | 3 | 2 | 0 | 0 | 3 | 0 | 0 | 0 | 6.1 | 5.6 | 11.7 | 8.2 | 0.5 | 1.5 | 1.30 |
| Grant Holmes | Cle | sp | 23 | 1 | 2 | 0 | 2 | 3 | 0 | 0 | 2 | 8.9 | 4.1 | 13.7 | 8.3 | 0.6 | 2.0 | 1.45 |
| J.J. Hoover | Bal | mr | 31 | 2 | 1 | 0 | 1 | 2 | 1 | 0 | 1 | 8.9 | 5.3 | 14.4 | 8.5 | 1.4 | 1.6 | 1.58 |
| Adrian Houser | Tex | sp | 26 | 1 | 0 | 0 | 2 | 3 | 0 | 0 | 5 | 11.7 | 3.9 | 16.0 | 7.3 | 1.8 | 1.9 | 1.73 |
| Brian Howard | | sp | 24 | 8 | 1 | 0 | 9 | 13 | 0 | 1 | 5 | 11.7 | 4.4 | 17.1 | 5.9 | 1.7 | 1.3 | 1.79 |
| James Hoyt | | mr | 32 | 1 | 1 | 0 | 1 | 5 | 0 | 0 | 1 | 10.0 | 2.6 | 12.8 | 10.7 | 1.6 | 4.2 | 1.40 |
| Dakota Hudson | | sp | 24 | 9 | 10 | 0 | 1 | 10 | 0 | 0 | 5 | 8.7 | 4.0 | 12.7 | 6.3 | 0.8 | 1.6 | 1.41 |
| Jared Hughes | Bos | mr | 33 | 5 | 1 | 4 | 3 | 5 | 0 | 0 | 2 | 6.8 | 2.9 | 10.0 | 6.3 | 0.7 | 2.2 | 1.07 |
| Danny Hultzen* | Tex | sp | 29 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 22.9 | 5.4 | 28.3 | 8.1 | 4.0 | 1.5 | 3.15 |
| Tommy Hunter | Phi | mr | 32 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 6.4 | 0.0 | 6.4 | 6.4 | 0.0 | 99.0 | 0.71 |
| Raisel Iglesias | Col | cl | 29 | 4 | 2 | 2 | 6 | 1 | 0 | 2 | 4 | 7.8 | 3.6 | 12.0 | 11.1 | 0.9 | 3.1 | 1.26 |
| Cole Irvin* | | sp | 25 | 3 | 2 | 1 | 1 | 2 | 0 | 1 | 2 | 8.9 | 2.5 | 11.6 | 5.1 | 0.8 | 2.1 | 1.27 |
| Luke Jackson | KC | mr | 27 | 9 | 9 | 0 | 2 | 13 | 0 | 0 | 2 | 6.5 | 3.9 | 10.6 | 9.1 | 0.5 | 2.4 | 1.15 |
| Josh James | ChN | sp | 26 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.1 | 0.0 | 8.1 | 16.2 | 2.7 | 99.0 | 0.90 |
| Kenley Jansen | | cl | 31 | 1 | 2 | 1 | 1 | 1 | 1 | 0 | 2 | 5.6 | 1.7 | 7.4 | 11.3 | 0.9 | 6.7 | 0.81 |
| Jeremy Jeffress | | cl | 31 | 3 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 8.3 | 2.5 | 10.8 | 10.3 | 1.1 | 4.1 | 1.20 |
| Dan Jennings* | | mr | 32 | 2 | 2 | 0 | 1 | 0 | 0 | 0 | 1 | 6.4 | 2.0 | 8.8 | 6.4 | 0.0 | 3.3 | 0.93 |
| Joe Jimenez | KC | mr | 24 | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 6.1 | 2.9 | 9.1 | 11.1 | 0.5 | 3.9 | 1.00 |
| Brian Johnson* | Mil | sp | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 21.0 | 12.0 | 33.0 | 3.0 | 3.0 | 0.3 | 3.67 |
| D.J. Johnson | ChA | mr | 29 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 6.9 | 3.3 | 10.2 | 10.2 | 1.9 | 3.1 | 1.13 |
| Tyler B. Johnson | ChA | mr | 23 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 7.1 | 3.6 | 10.7 | 10.7 | 0.5 | 3.0 | 1.19 |
| Jake Junis | LAN | sp | 26 | 11 | 10 | 1 | 15 | 4 | 2 | 5 | 4 | 9.2 | 1.2 | 11.1 | 8.1 | 1.2 | 6.6 | 1.16 |
| Tommy Kahnle | LAA | mr | 29 | 4 | 2 | 0 | 2 | 6 | 0 | 0 | 2 | 6.1 | 4.3 | 10.7 | 11.2 | 0.8 | 2.6 | 1.16 |
| Rob Kaminsky* | Bal | mr | 24 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 10.3 | 7.1 | 17.5 | 11.9 | 0.0 | 1.7 | 1.94 |
| James Karinchak | Tex | mr | 23 | 5 | 3 | 0 | 2 | 10 | 0 | 1 | 1 | 7.5 | 6.2 | 14.1 | 10.7 | 1.1 | 1.7 | 1.52 |
| Anthony Kay* | | sp | 24 | 12 | 2 | 2 | 4 | 3 | 0 | 2 | 1 | 10.3 | 4.7 | 15.5 | 8.2 | 0.9 | 1.8 | 1.66 |
| Keone Kela | | cl | 26 | 4 | 2 | 0 | 0 | 3 | 0 | 0 | 0 | 5.3 | 2.5 | 7.8 | 11.7 | 0.7 | 4.7 | 0.87 |
| Brad Keller | ChA | sp | 23 | 13 | 12 | 0 | 6 | 18 | 2 | 0 | 5 | 8.8 | 3.0 | 12.0 | 5.1 | 0.9 | 1.7 | 1.30 |
| Brian Keller | Tex | sp | 25 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 12.6 | 1.8 | 14.4 | 5.4 | 3.6 | 3.0 | 1.60 |
| Kyle Keller | NYN | mr | 26 | 12 | 5 | 0 | 7 | 4 | 2 | 1 | 4 | 8.2 | 4.7 | 13.7 | 10.1 | 0.9 | 2.1 | 1.43 |
| Mitch Keller | NYN | sp | 23 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 12.6 | 1.8 | 14.4 | 9.0 | 1.8 | 5.0 | 1.60 |
| Shawn Kelley | Pit | mr | 35 | 5 | 2 | 0 | 0 | 0 | 0 | 1 | 2 | 7.5 | 1.5 | 8.9 | 9.6 | 0.6 | 6.6 | 0.99 |
| Joe Kelly | Mil | mr | 31 | 6 | 1 | 1 | 3 | 3 | 0 | 0 | 2 | 8.0 | 4.2 | 12.6 | 10.7 | 0.4 | 2.5 | 1.35 |
| Merrill Kelly | Bos | sp | 30 | 5 | 2 | 0 | 2 | 3 | 0 | 0 | 2 | 9.2 | 2.4 | 11.9 | 8.6 | 0.8 | 3.6 | 1.29 |
| Ian Kennedy | | sp | 34 | 10 | 8 | 1 | 5 | 5 | 0 | 1 | 5 | 9.7 | 2.4 | 12.3 | 8.1 | 2.2 | 3.4 | 1.33 |
| Clayton Kershaw* | NYA | sp | 31 | 5 | 3 | 0 | 5 | 6 | 0 | 1 | 1 | 7.8 | 1.9 | 9.9 | 10.3 | 0.9 | 5.5 | 1.07 |
| Dallas Keuchel* | ChN | sp | 31 | 8 | 3 | 2 | 2 | 6 | 0 | 0 | 2 | 8.0 | 2.9 | 11.0 | 7.7 | 0.8 | 2.7 | 1.21 |
| Yusei Kikuchi* | ChA | sp | 28 | 34 | 12 | 0 | 8 | 8 | 2 | 0 | 8 | 7.9 | 3.8 | 12.1 | 8.3 | 1.0 | 2.2 | 1.30 |
| Craig Kimbrel | Tor | cl | 31 | 3 | 1 | 0 | 1 | 4 | 0 | 0 | 1 | 8.5 | 4.8 | 13.6 | 15.6 | 2.6 | 3.2 | 1.48 |
| Michael King | Tex | sp | 24 | 7 | 0 | 0 | 4 | 5 | 0 | 0 | 0 | 6.8 | 1.5 | 8.8 | 6.9 | 1.3 | 4.6 | 0.92 |
| Nick Kingham | Hou | sp | 27 | 4 | 7 | 1 | 3 | 7 | 1 | 1 | 5 | 10.2 | 1.7 | 12.1 | 7.2 | 1.9 | 4.2 | 1.32 |
| Brandon Kintzler | Col | mr | 34 | 0 | 0 | 1 | 3 | 0 | 0 | 0 | 1 | 9.9 | 2.8 | 13.5 | 6.1 | 0.8 | 2.2 | 1.42 |
| Andrew Kittredge | | mr | 29 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 9.5 | 1.6 | 11.1 | 7.1 | 0.8 | 4.5 | 1.24 |
| Corey Kluber | SF | sp | 33 | 9 | 6 | 0 | 4 | 0 | 1 | 1 | 5 | 8.0 | 1.3 | 9.7 | 10.7 | 1.1 | 8.0 | 1.04 |
| Adam Kolarek* | Det | mr | 30 | 1 | 5 | 0 | 1 | 0 | 0 | 0 | 0 | 9.7 | 5.2 | 15.2 | 8.7 | 0.3 | 1.7 | 1.65 |
| Michael Kopech | SF | sp | 23 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 6.1 | 4.7 | 11.5 | 8.1 | 0.0 | 1.7 | 1.20 |
| Dean Kremer | Cin | sp | 23 | 5 | 0 | 0 | 0 | 2 | 0 | 2 | 0 | 9.5 | 4.6 | 14.2 | 10.2 | 1.6 | 2.2 | 1.57 |
| Brady Lail | Hou | mr | 25 | 5 | 3 | 1 | 2 | 6 | 0 | 0 | 2 | 10.6 | 4.7 | 15.5 | 6.5 | 1.1 | 1.4 | 1.70 |
| Peter Lambert | ChA | sp | 22 | 1 | 1 | 0 | 1 | 2 | 1 | 1 | 1 | 7.2 | 1.5 | 8.8 | 5.3 | 0.8 | 3.6 | 0.96 |
| Dinelson Lamet | KC | sp | 26 | 15 | 5 | 0 | 3 | 7 | 0 | 0 | 0 | 6.3 | 3.9 | 10.6 | 9.4 | 0.5 | 2.4 | 1.14 |
| Eric Lauer* | | sp | 24 | 8 | 5 | 0 | 11 | 4 | 0 | 0 | 3 | 9.0 | 3.8 | 13.5 | 9.0 | 1.4 | 2.4 | 1.43 |
| Derek Law | Cin | mr | 28 | 5 | 4 | 1 | 3 | 5 | 0 | 0 | 1 | 9.9 | 4.3 | 14.7 | 7.2 | 1.2 | 1.7 | 1.58 |
| Tommy Layne* | NYA | mr | 34 | 2 | 1 | 0 | 3 | 0 | 0 | 0 | 0 | 8.8 | 4.7 | 15.1 | 8.3 | 0.0 | 1.8 | 1.50 |
| Mike Leake | Cin | sp | 31 | 6 | 3 | 4 | 3 | 11 | 0 | 4 | 5 | 9.9 | 1.4 | 11.5 | 5.9 | 0.7 | 4.1 | 1.26 |
| Wade LeBlanc* | Pit | sp | 34 | 1 | 2 | 0 | 3 | 0 | 1 | 3 | 5 | 9.5 | 2.3 | 12.3 | 7.0 | 1.9 | 3.0 | 1.32 |
| Jose Leclerc | LAA | mr | 25 | 1 | 2 | 0 | 4 | 2 | 0 | 0 | 1 | 5.0 | 3.2 | 8.7 | 12.0 | 0.1 | 3.8 | 0.91 |
| Luke Leftwich | Det | mr | 25 | 6 | 2 | 0 | 1 | 0 | 0 | 0 | 2 | 5.8 | 2.5 | 8.4 | 8.0 | 0.1 | 3.2 | 0.92 |
| Dominic Leone | Tam | mr | 27 | 4 | 7 | 0 | 1 | 12 | 0 | 0 | 3 | 7.7 | 3.2 | 10.9 | 9.6 | 1.2 | 3.0 | 1.20 |
| Jon Lester* | | sp | 35 | 25 | 11 | 0 | 7 | 4 | 0 | 0 | 2 | 8.5 | 2.5 | 11.3 | 7.8 | 1.3 | 3.1 | 1.22 |
| Zack Littell | Tam | sp | 23 | 2 | 1 | 0 | 5 | 2 | 0 | 0 | 0 | 8.3 | 3.0 | 12.3 | 7.7 | 1.3 | 2.6 | 1.25 |
| Ben Lively | Was | sp | 27 | 4 | 2 | 1 | 9 | 3 | 0 | 3 | 6 | 10.0 | 3.4 | 14.1 | 7.0 | 1.0 | 2.0 | 1.49 |
| Jonathan Loaisiga | Ari | sp | 24 | 10 | 2 | 1 | 1 | 1 | 1 | 2 | 3 | 8.9 | 2.3 | 11.3 | 8.8 | 1.3 | 3.9 | 1.25 |
| Jorge Lopez | SD | mr | 26 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.6 | 1.3 | 3.9 | 6.4 | 0.0 | 5.0 | 0.43 |
| Pablo Lopez | Tex | sp | 23 | 12 | 5 | 0 | 8 | 6 | 0 | 0 | 1 | 8.8 | 2.3 | 11.8 | 7.4 | 0.9 | 3.2 | 1.23 |
| Reynaldo Lopez | Bos | sp | 25 | 5 | 4 | 0 | 1 | 3 | 0 | 0 | 1 | 7.2 | 4.3 | 11.7 | 7.0 | 1.1 | 1.6 | 1.28 |
| Yoan Lopez | | mr | 26 | 3 | 1 | 0 | 7 | 11 | 0 | 0 | 6 | 9.2 | 3.7 | 13.7 | 10.6 | 1.4 | 2.9 | 1.44 |
| Michael Lorenzen | Cin | mr | 27 | 2 | 4 | 3 | 5 | 6 | 1 | 0 | 2 | 9.1 | 3.8 | 13.4 | 7.3 | 0.4 | 1.9 | 1.43 |
| Aaron Loup* | Cin | mr | 31 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 6.8 | 0.0 | 8.4 | 15.2 | 0.0 | 99.0 | 0.75 |
| Richard Lovelady* | Cle | mr | 23 | 6 | 9 | 1 | 4 | 3 | 0 | 1 | 4 | 9.2 | 2.8 | 12.3 | 7.7 | 0.6 | 2.8 | 1.33 |
| Joey Lucchesi* | Ari | sp | 26 | 13 | 12 | 1 | 5 | 12 | 0 | 3 | 6 | 8.2 | 3.7 | 12.2 | 9.5 | 1.2 | 2.5 | 1.33 |
| Seth Lugo | NYN | mr | 29 | 16 | 7 | 2 | 10 | 8 | 0 | 8 | 3 | 10.5 | 2.6 | 13.6 | 8.7 | 1.6 | 3.4 | 1.45 |
| Jesus Luzardo* | | sp | 21 | 1 | 3 | 2 | 0 | 4 | 1 | 2 | 1 | 7.8 | 3.7 | 11.5 | 7.2 | 0.9 | 2.0 | 1.27 |
| Jordan Lyles | Phi | mr | 28 | 7 | 6 | 0 | 2 | 7 | 0 | 1 | 1 | 7.3 | 4.3 | 11.8 | 7.3 | 0.8 | 1.7 | 1.29 |
| Lance Lynn | | sp | 32 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 7.8 | 3.3 | 11.1 | 9.1 | 0.8 | 2.8 | 1.24 |
| Kenta Maeda | Min | sp | 31 | 16 | 8 | 0 | 5 | 4 | 0 | 1 | 6 | 6.9 | 2.3 | 9.5 | 8.4 | 1.0 | 3.6 | 1.03 |
| Tyler Mahle | Ari | sp | 24 | 2 | 1 | 2 | 2 | 1 | 0 | 1 | 0 | 8.5 | 4.1 | 13.3 | 9.2 | 2.4 | 2.3 | 1.41 |
| Kazuhisa Makita | NYA | mr | 34 | 3 | 3 | 0 | 1 | 0 | 0 | 0 | 0 | 7.0 | 2.7 | 9.9 | 6.0 | 0.6 | 2.2 | 1.08 |
| German Marquez | Bos | sp | 24 | 18 | 11 | 0 | 9 | 5 | 0 | 0 | 5 | 7.6 | 2.8 | 10.8 | 9.0 | 1.3 | 3.2 | 1.16 |
| Evan Marshall | | mr | 29 | 5 | 3 | 0 | 2 | 0 | 0 | 0 | 1 | 6.5 | 1.9 | 8.9 | 5.7 | 0.8 | 3.0 | 0.94 |
| Brett Martin* | Atl | sp | 24 | 7 | 4 | 0 | 5 | 11 | 1 | 2 | 8 | 7.7 | 2.7 | 10.6 | 7.4 | 0.4 | 2.7 | 1.15 |
| Chris Martin | | mr | 33 | 4 | 1 | 0 | 1 | 9 | 0 | 0 | 3 | 9.1 | 2.2 | 11.5 | 7.3 | 0.6 | 3.3 | 1.26 |
| Cody Martin | SD | sp | 29 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 7.7 | 5.8 | 15.4 | 9.6 | 0.0 | 1.7 | 1.50 |
| Corbin Martin | StL | sp | 23 | 0 | 0 | 0 | 2 | 3 | 0 | 0 | 0 | 5.3 | 3.9 | 10.1 | 8.7 | 1.0 | 2.3 | 1.02 |
| Carlos Martinez | Sea | sp | 27 | 6 | 5 | 1 | 9 | 2 | 0 | 0 | 2 | 7.1 | 3.5 | 11.4 | 8.6 | 0.9 | 2.4 | 1.19 |
| Bryan Mata | Oak | sp | 20 | 3 | 2 | 0 | 0 | 5 | 0 | 0 | 1 | 7.9 | 10.2 | 18.2 | 5.4 | 0.5 | 0.5 | 2.02 |
| Phil Maton | ChN | mr | 26 | 3 | 3 | 2 | 2 | 4 | 0 | 2 | 1 | 7.9 | 3.2 | 11.4 | 9.5 | 1.0 | 3.0 | 1.23 |
| Steven Matz* | Mia | sp | 28 | 17 | 5 | 0 | 4 | 2 | 0 | 2 | 3 | 7.5 | 4.1 | 12.0 | 10.2 | 1.0 | 2.5 | 1.28 |
| Dustin May | Bos | sp | 21 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 8.1 | 0.0 | 8.1 | 9.4 | 1.3 | 99.0 | 0.90 |
| Trevor May | Sea | mr | 29 | 9 | 2 | 1 | 5 | 12 | 0 | 1 | 2 | 8.6 | 6.5 | 15.6 | 9.5 | 1.1 | 1.5 | 1.68 |
| Mike Mayers | StL | mr | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 27.0 | 0.0 | 27.0 | 0.0 | 0.0 | 0.0 | 3.00 |
| Tim Mayza* | Atl | mr | 27 | 4 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 7.1 | 3.1 | 10.3 | 10.5 | 0.5 | 3.4 | 1.13 |
| Brendan McCurry | ChN | mr | 27 | 1 | 3 | 0 | 0 | 2 | 0 | 2 | 3 | 10.1 | 2.4 | 12.4 | 8.9 | 1.8 | 3.8 | 1.38 |
| Jake McGee* | Tor | mr | 32 | 2 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 9.9 | 2.8 | 12.8 | 9.2 | 0.7 | 3.3 | 1.42 |
| Collin McHugh | | sp | 32 | 18 | 9 | 2 | 9 | 1 | 0 | 5 | 6 | 9.6 | 2.7 | 12.8 | 9.6 | 1.1 | 3.5 | 1.37 |
| John Means* | | sp | 26 | 12 | 3 | 0 | 5 | 10 | 1 | 1 | 1 | 11.6 | 2.1 | 14.3 | 6.1 | 1.3 | 2.9 | 1.52 |
| Adonis Medina | | sp | 22 | 1 | 1 | 0 | 2 | 6 | 0 | 0 | 1 | 9.6 | 5.2 | 15.2 | 7.6 | 0.7 | 1.5 | 1.64 |
| Adalberto Mejia* | | sp | 26 | 0 | 1 | 0 | 3 | 0 | 0 | 1 | 0 | 8.5 | 2.7 | 12.3 | 6.5 | 2.1 | 2.4 | 1.25 |
| Mark Melancon | | cl | 34 | 12 | 1 | 2 | 2 | 4 | 0 | 0 | 3 | 10.3 | 3.2 | 13.7 | 8.4 | 0.9 | 2.7 | 1.49 |
| Keury Mella | Sea | sp | 25 | 13 | 6 | 0 | 7 | 16 | 1 | 2 | 10 | 8.9 | 4.5 | 13.8 | 6.3 | 1.3 | 1.4 | 1.49 |
| Conner Menez* | LAA | sp | 24 | 5 | 3 | 0 | 1 | 1 | 0 | 0 | 1 | 10.7 | 5.2 | 16.3 | 12.2 | 2.2 | 2.4 | 1.77 |
| Daniel Mengden | Col | sp | 26 | 0 | 1 | 0 | 2 | 3 | 1 | 2 | 0 | 12.0 | 4.0 | 16.6 | 6.1 | 1.8 | 1.5 | 1.77 |
| Ryan Merritt* | Atl | sp | 27 | 16 | 2 | 4 | 9 | 1 | 0 | 3 | 7 | 9.4 | 1.4 | 11.2 | 6.3 | 0.9 | 4.5 | 1.19 |
| Keynan Middleton | Bal | mr | 25 | 6 | 8 | 1 | 5 | 2 | 0 | 1 | 4 | 7.2 | 3.6 | 11.4 | 9.7 | 1.6 | 2.7 | 1.21 |
| Miles Mikolas | Col | sp | 30 | 4 | 6 | 3 | 13 | 4 | 2 | 4 | 6 | 8.6 | 1.7 | 10.8 | 7.2 | 1.1 | 4.3 | 1.15 |
| Wade Miley* | SD | sp | 32 | 6 | 4 | 2 | 2 | 0 | 0 | 0 | 1 | 8.4 | 2.9 | 11.7 | 8.8 | 0.6 | 3.1 | 1.26 |
| Andrew Miller* | Pit | mr | 34 | 3 | 2 | 0 | 8 | 0 | 1 | 0 | 0 | 5.4 | 3.0 | 9.3 | 11.4 | 0.4 | 3.8 | 0.93 |
| Justin Miller | Det | mr | 32 | 5 | 2 | 2 | 0 | 1 | 0 | 1 | 3 | 8.6 | 2.3 | 10.8 | 10.3 | 0.4 | 4.6 | 1.20 |
| Shelby Miller | Atl | sp | 28 | 0 | 0 | 0 | 1 | 4 | 0 | 0 | 1 | 9.1 | 2.8 | 12.0 | 7.5 | 1.2 | 2.7 | 1.32 |
| Alec Mills | Cin | sp | 27 | 7 | 2 | 0 | 3 | 5 | 0 | 4 | 3 | 9.8 | 3.5 | 13.7 | 8.6 | 1.6 | 2.4 | 1.48 |
| Juan Minaya | Atl | mr | 28 | 11 | 8 | 1 | 5 | 10 | 1 | 0 | 3 | 7.1 | 4.2 | 11.8 | 10.4 | 0.4 | 2.5 | 1.25 |
| Mike Minor* | ChN | sp | 31 | 10 | 4 | 1 | 6 | 8 | 0 | 4 | 4 | 8.7 | 2.2 | 11.2 | 8.5 | 1.5 | 4.0 | 1.20 |
| A.J. Minter* | Phi | cl | 25 | 3 | 1 | 1 | 2 | 8 | 0 | 0 | 2 | 10.1 | 3.8 | 14.2 | 11.4 | 1.5 | 3.0 | 1.55 |
| Rafael Montero | NYA | sp | 28 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 22.8 | 4.2 | 27.0 | 8.3 | 6.2 | 2.0 | 3.00 |
| Jordan Montgomery* | Cle | sp | 26 | 4 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 9.4 | 1.9 | 11.3 | 5.0 | 1.3 | 2.7 | 1.26 |
| Mike Montgomery* | Sea | mr | 29 | 6 | 3 | 0 | 0 | 4 | 0 | 0 | 3 | 8.5 | 4.3 | 12.8 | 7.1 | 1.6 | 1.6 | 1.42 |
| Brian Moran* | Tor | mr | 30 | 3 | 1 | 0 | 0 | 2 | 0 | 0 | 3 | 9.6 | 5.1 | 14.7 | 8.2 | 1.4 | 1.6 | 1.63 |
| Adam Morgan* | Phi | mr | 29 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.7 | 1.9 | 10.6 | 7.7 | 2.9 | 4.0 | 1.18 |
| Reyes Moronta | NYA | mr | 26 | 2 | 0 | 0 | 0 | 3 | 0 | 0 | 4 | 9.2 | 4.4 | 13.6 | 10.9 | 1.2 | 2.5 | 1.51 |
| Charlie Morton | | sp | 35 | 10 | 7 | 0 | 12 | 4 | 1 | 2 | 4 | 8.4 | 3.0 | 12.0 | 9.6 | 1.0 | 3.3 | 1.26 |
| Gabriel Moya* | KC | mr | 24 | 5 | 3 | 0 | 1 | 0 | 0 | 0 | 2 | 10.0 | 3.7 | 13.8 | 9.4 | 0.9 | 2.5 | 1.52 |
| Kyle Muller* | StL | sp | 21 | 4 | 1 | 1 | 2 | 10 | 0 | 4 | 0 | 9.4 | 3.9 | 13.5 | 7.6 | 1.6 | 2.0 | 1.47 |
| Andres Munoz | Tex | mr | 20 | 5 | 1 | 0 | 1 | 16 | 0 | 2 | 3 | 8.2 | 10.2 | 18.5 | 10.5 | 2.0 | 1.0 | 2.04 |
| Patrick Murphy | | sp | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14.5 | 4.2 | 18.7 | 4.2 | 0.0 | 1.0 | 2.08 |
| Joe Musgrove | ChA | sp | 26 | 22 | 8 | 1 | 10 | 10 | 0 | 1 | 6 | 7.6 | 1.8 | 9.9 | 8.0 | 1.2 | 4.3 | 1.05 |
| Carlos Navas | Atl | mr | 26 | 7 | 4 | 3 | 8 | 15 | 0 | 0 | 4 | 8.3 | 3.4 | 12.4 | 7.1 | 0.9 | 2.1 | 1.29 |
| Nick Neidert | | sp | 22 | 23 | 8 | 4 | 5 | 9 | 3 | 2 | 3 | 10.6 | 2.0 | 12.9 | 7.4 | 1.2 | 3.7 | 1.40 |
| Jimmy Nelson | SD | sp | 30 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 9.0 | 7.2 | 16.2 | 12.6 | 0.0 | 1.8 | 1.80 |
| Nick Nelson | Was | sp | 23 | 3 | 0 | 0 | 1 | 3 | 1 | 1 | 0 | 12.8 | 4.4 | 17.4 | 7.0 | 1.7 | 1.6 | 1.90 |
| Hector Neris | Phi | cl | 30 | 1 | 5 | 1 | 2 | 3 | 0 | 0 | 1 | 6.1 | 3.0 | 9.3 | 12.8 | 1.1 | 4.3 | 1.00 |
| Pat Neshek | Phi | mr | 38 | 3 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 6.3 | 1.7 | 8.0 | 6.3 | 0.7 | 3.8 | 0.89 |
| Sean Newcomb* | Oak | sp | 26 | 14 | 6 | 1 | 1 | 4 | 0 | 0 | 7 | 8.2 | 3.9 | 12.2 | 9.7 | 1.0 | 2.5 | 1.35 |
| Juan Nicasio | NYA | mr | 32 | 5 | 3 | 0 | 1 | 1 | 0 | 0 | 2 | 8.4 | 2.4 | 10.9 | 11.6 | 1.8 | 4.8 | 1.20 |
| Stephen Nogosek | Oak | mr | 24 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10.1 | 3.4 | 13.5 | 13.5 | 0.0 | 4.0 | 1.50 |
| Aaron Nola | Phi | sp | 26 | 21 | 13 | 1 | 9 | 2 | 0 | 3 | 4 | 7.7 | 2.2 | 10.3 | 9.9 | 0.8 | 4.5 | 1.10 |
| Bud Norris | NYN | cl | 34 | 2 | 0 | 0 | 5 | 9 | 0 | 0 | 1 | 6.6 | 3.0 | 10.4 | 10.1 | 1.1 | 3.3 | 1.07 |
| Daniel Norris* | Mia | sp | 26 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 13.5 | 5.8 | 19.3 | 5.8 | 0.0 | 1.0 | 2.14 |
| Ivan Nova | Mil | sp | 32 | 17 | 7 | 3 | 8 | 7 | 0 | 4 | 3 | 9.4 | 1.7 | 11.5 | 8.2 | 1.5 | 4.9 | 1.24 |
| Darren O'Day | Bos | mr | 36 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 9.6 | 0.0 | 9.6 | 8.7 | 0.0 | 99.0 | 1.06 |
| Trevor Oaks | Bal | sp | 26 | 0 | 3 | 0 | 3 | 2 | 0 | 0 | 0 | 7.4 | 2.3 | 10.3 | 4.0 | 0.7 | 1.8 | 1.07 |
| Scott Oberg | ChA | mr | 29 | 4 | 1 | 2 | 1 | 5 | 0 | 0 | 0 | 6.8 | 2.9 | 9.8 | 8.3 | 0.5 | 2.9 | 1.07 |
| Jake Odorizzi | SD | sp | 29 | 16 | 9 | 1 | 2 | 2 | 1 | 2 | 5 | 7.7 | 2.4 | 10.2 | 8.4 | 0.9 | 3.4 | 1.13 |
| Seung-hwan Oh | Pit | mr | 36 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 9.5 | 1.8 | 11.3 | 7.7 | 2.0 | 4.3 | 1.26 |
| Tyler Olson* | Cin | mr | 29 | 3 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 10.9 | 2.7 | 14.0 | 9.4 | 1.5 | 3.4 | 1.52 |
| Luis Ortiz | NYN | sp | 23 | 2 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 13.3 | 2.6 | 15.9 | 7.7 | 1.7 | 3.0 | 1.76 |
| Roberto Osuna | Mia | cl | 24 | 5 | 1 | 2 | 0 | 4 | 0 | 1 | 2 | 6.8 | 1.8 | 8.6 | 10.0 | 0.5 | 5.5 | 0.96 |
| Dan Otero | LAA | mr | 34 | 5 | 3 | 1 | 4 | 0 | 0 | 0 | 3 | 8.7 | 0.7 | 9.9 | 6.4 | 0.8 | 9.4 | 1.04 |
| Travis Ott* | NYN | mr | 24 | 17 | 4 | 2 | 3 | 4 | 1 | 3 | 3 | 7.7 | 4.5 | 12.4 | 9.7 | 0.3 | 2.1 | 1.35 |
| Adam Ottavino | | mr | 33 | 3 | 1 | 0 | 3 | 12 | 1 | 0 | 1 | 6.1 | 5.2 | 11.8 | 11.6 | 0.8 | 2.2 | 1.26 |
| Chris Paddack | KC | sp | 23 | 15 | 4 | 0 | 12 | 2 | 1 | 0 | 0 | 8.2 | 2.2 | 11.0 | 9.5 | 1.5 | 4.3 | 1.16 |
| Emilio Pagan | Cle | mr | 28 | 8 | 3 | 3 | 1 | 4 | 0 | 0 | 2 | 8.3 | 4.3 | 12.9 | 11.4 | 1.4 | 2.6 | 1.41 |
| Joe Palumbo* | NYN | sp | 24 | 9 | 3 | 1 | 0 | 1 | 1 | 0 | 1 | 12.6 | 7.0 | 19.7 | 8.8 | 1.8 | 1.3 | 2.18 |
| Edward Paredes* | Hou | mr | 32 | 2 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 5.8 | 2.4 | 8.2 | 11.3 | 0.7 | 4.7 | 0.91 |
| Blake Parker | LAA | cl | 34 | 3 | 0 | 0 | 3 | 5 | 0 | 0 | 0 | 9.8 | 3.0 | 13.8 | 5.7 | 2.0 | 1.9 | 1.42 |
| David Paulino | | sp | 25 | 1 | 2 | 0 | 0 | 3 | 0 | 0 | 0 | 7.5 | 0.7 | 8.2 | 10.6 | 0.7 | 15.5 | 0.91 |
| James Paxton* | Sea | sp | 30 | 7 | 3 | 0 | 2 | 10 | 0 | 0 | 1 | 7.1 | 2.5 | 9.8 | 10.6 | 0.6 | 4.2 | 1.07 |
| James Pazos* | | mr | 28 | 3 | 1 | 0 | 2 | 2 | 0 | 0 | 2 | 6.3 | 2.7 | 9.4 | 8.4 | 0.5 | 3.2 | 0.99 |
| Brad Peacock | | mr | 31 | 4 | 2 | 0 | 4 | 5 | 0 | 2 | 1 | 7.0 | 3.3 | 10.6 | 11.8 | 0.4 | 3.6 | 1.14 |
| Felix Pena | | sp | 29 | 15 | 5 | 0 | 4 | 4 | 3 | 1 | 2 | 8.2 | 3.4 | 12.1 | 7.1 | 1.5 | 2.1 | 1.29 |
| Freddy Peralta | Oak | sp | 23 | 12 | 8 | 0 | 5 | 18 | 1 | 2 | 7 | 7.5 | 5.5 | 13.4 | 12.1 | 1.1 | 2.2 | 1.45 |
| Luis Perdomo | | sp | 26 | 4 | 2 | 0 | 2 | 3 | 0 | 0 | 0 | 9.5 | 2.7 | 12.7 | 6.8 | 1.1 | 2.5 | 1.36 |
| Cionel Perez* | NYN | mr | 23 | 23 | 8 | 5 | 5 | 22 | 2 | 7 | 10 | 8.4 | 4.5 | 13.1 | 8.8 | 1.1 | 1.9 | 1.43 |
| Franklin Perez | Sea | sp | 21 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 20.3 | 20.3 | 40.5 | 0.0 | 0.0 | 0.0 | 4.50 |
| Martin Perez* | LAN | sp | 28 | 10 | 7 | 5 | 6 | 6 | 1 | 5 | 4 | 8.1 | 3.5 | 11.8 | 5.8 | 0.6 | 1.7 | 1.28 |
| Oliver Perez* | Det | mr | 37 | 2 | 1 | 1 | 1 | 5 | 0 | 0 | 2 | 8.4 | 4.1 | 12.8 | 10.6 | 0.7 | 2.6 | 1.39 |
| David Peterson | LAA | mr | 29 | 1 | 1 | 0 | 0 | 4 | 0 | 0 | 1 | 7.9 | 2.5 | 10.4 | 6.6 | 0.4 | 2.7 | 1.15 |
| Tim Peterson | Atl | mr | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 18.0 | 0.0 | 99.0 | 0.00 |
| Yusmeiro Petit | | mr | 34 | 3 | 3 | 2 | 0 | 0 | 0 | 1 | 2 | 7.9 | 1.9 | 9.9 | 7.8 | 0.6 | 4.0 | 1.10 |
| Michael Pineda | Pit | sp | 30 | 11 | 3 | 0 | 5 | 6 | 1 | 1 | 2 | 10.1 | 1.3 | 11.8 | 7.7 | 1.2 | 5.9 | 1.27 |
| Nick Pivetta | | sp | 26 | 8 | 3 | 2 | 3 | 4 | 1 | 2 | 3 | 9.4 | 3.5 | 13.2 | 9.5 | 1.0 | 2.7 | 1.44 |
| Colin Poche* | Col | mr | 25 | 1 | 4 | 1 | 2 | 5 | 0 | 1 | 1 | 7.2 | 5.5 | 13.0 | 14.1 | 1.2 | 2.5 | 1.42 |
| Drew Pomeranz* | SD | sp | 30 | 12 | 5 | 0 | 6 | 5 | 0 | 6 | 6 | 7.8 | 4.3 | 12.4 | 9.7 | 0.9 | 2.2 | 1.35 |
| Cody Ponce | SD | sp | 25 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12.0 | 0.0 | 12.0 | 6.0 | 3.0 | 99.0 | 1.33 |
| Daniel Poncedeleon | StL | sp | 27 | 6 | 2 | 0 | 4 | 2 | 0 | 1 | 4 | 8.1 | 5.1 | 13.8 | 8.3 | 0.8 | 1.6 | 1.47 |
| Rick Porcello | Bal | sp | 30 | 19 | 6 | 3 | 7 | 5 | 2 | 1 | 3 | 8.0 | 2.1 | 10.4 | 7.7 | 1.1 | 3.6 | 1.12 |
| Alex Powers | Cin | mr | 27 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 11.6 | 3.9 | 15.4 | 7.1 | 2.6 | 1.8 | 1.71 |
| Bobby Poyner* | LAN | mr | 26 | 4 | 2 | 1 | 4 | 0 | 0 | 0 | 4 | 9.4 | 2.1 | 12.1 | 8.4 | 1.6 | 4.1 | 1.28 |
| Ryan Pressly | Min | mr | 30 | 6 | 1 | 2 | 3 | 5 | 0 | 0 | 0 | 7.7 | 4.0 | 12.3 | 11.2 | 0.0 | 2.8 | 1.29 |
| David Price* | Tor | sp | 33 | 10 | 7 | 0 | 5 | 1 | 2 | 1 | 1 | 7.5 | 2.6 | 10.3 | 8.8 | 0.8 | 3.4 | 1.12 |
| Austin Pruitt | Atl | mr | 29 | 2 | 3 | 0 | 4 | 5 | 0 | 2 | 4 | 11.5 | 1.3 | 13.3 | 7.1 | 1.4 | 5.5 | 1.43 |
| Cal Quantrill | NYN | sp | 24 | 4 | 1 | 0 | 1 | 0 | 0 | 0 | 2 | 8.7 | 1.6 | 10.6 | 8.0 | 0.6 | 5.0 | 1.14 |
| Jose Quijada* | Tor | mr | 23 | 1 | 2 | 0 | 1 | 1 | 1 | 0 | 2 | 9.1 | 6.1 | 15.5 | 12.6 | 0.5 | 2.0 | 1.69 |
| Jose Quintana* | Col | sp | 30 | 11 | 6 | 3 | 2 | 4 | 0 | 5 | 5 | 7.4 | 2.9 | 10.4 | 10.0 | 1.0 | 3.4 | 1.15 |
| Noe Ramirez | Was | mr | 29 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 6.6 | 2.2 | 10.9 | 9.5 | 1.5 | 4.3 | 0.97 |
| Edubray Ramos | Tor | mr | 26 | 7 | 5 | 1 | 2 | 4 | 1 | 1 | 1 | 8.6 | 2.5 | 11.3 | 9.3 | 0.8 | 3.7 | 1.24 |
| Robbie Ray* | Oak | sp | 27 | 20 | 10 | 2 | 5 | 6 | 0 | 0 | 4 | 6.5 | 4.5 | 11.3 | 11.6 | 0.7 | 2.6 | 1.22 |
| Sean Reid-Foley | KC | sp | 23 | 9 | 1 | 0 | 3 | 3 | 0 | 0 | 3 | 8.1 | 3.7 | 12.0 | 7.9 | 1.3 | 2.1 | 1.30 |
| Alex Reyes | Tex | sp | 24 | 2 | 3 | 0 | 3 | 8 | 0 | 0 | 1 | 10.4 | 6.1 | 17.0 | 9.8 | 1.1 | 1.6 | 1.83 |
| Gerardo Reyes | Tex | mr | 26 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.7 | 5.4 | 8.1 | 5.4 | 0.0 | 1.0 | 0.90 |
| Garrett Richards | Bal | sp | 31 | 8 | 10 | 0 | 1 | 13 | 0 | 0 | 3 | 7.8 | 3.1 | 10.9 | 9.4 | 1.2 | 3.1 | 1.21 |
| Trevor Richards | | sp | 26 | 9 | 5 | 1 | 4 | 16 | 0 | 1 | 6 | 7.9 | 4.2 | 12.4 | 9.7 | 1.5 | 2.3 | 1.35 |
| Tanner Roark | Min | sp | 32 | 13 | 7 | 2 | 3 | 4 | 0 | 0 | 1 | 7.5 | 2.6 | 10.2 | 6.7 | 1.2 | 2.6 | 1.12 |
| David Robertson | Mil | cl | 34 | 2 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 8.2 | 3.2 | 11.4 | 12.8 | 2.7 | 4.0 | 1.27 |
| Fernando Rodney | | cl | 42 | 7 | 5 | 0 | 3 | 7 | 1 | 0 | 0 | 8.1 | 4.1 | 12.6 | 8.8 | 0.7 | 2.1 | 1.36 |
| Carlos Rodon* | Col | sp | 26 | 7 | 3 | 0 | 2 | 0 | 0 | 1 | 0 | 9.1 | 4.0 | 13.5 | 7.0 | 0.4 | 1.7 | 1.45 |
| Dereck Rodriguez | NYA | sp | 27 | 10 | 4 | 0 | 9 | 4 | 1 | 3 | 3 | 8.5 | 2.6 | 11.6 | 7.0 | 1.4 | 2.7 | 1.23 |
| Eduardo Rodriguez* | | sp | 26 | 10 | 12 | 0 | 7 | 3 | 0 | 1 | 3 | 7.7 | 3.9 | 12.0 | 9.5 | 1.2 | 2.4 | 1.29 |
| Jefry Rodriguez | Tor | sp | 25 | 9 | 10 | 0 | 2 | 14 | 1 | 0 | 2 | 9.2 | 6.3 | 15.7 | 7.3 | 1.0 | 1.2 | 1.72 |
| Richard Rodriguez | Mia | mr | 29 | 4 | 4 | 2 | 4 | 6 | 0 | 0 | 2 | 8.4 | 2.3 | 11.1 | 11.3 | 1.0 | 5.0 | 1.18 |
| Chaz Roe | | mr | 32 | 14 | 1 | 0 | 3 | 7 | 0 | 0 | 2 | 9.2 | 4.9 | 14.8 | 10.0 | 0.2 | 2.0 | 1.57 |
| Taylor Rogers* | | mr | 28 | 3 | 5 | 1 | 3 | 1 | 0 | 0 | 0 | 7.1 | 1.8 | 9.3 | 6.9 | 0.6 | 3.8 | 1.00 |
| Fernando Romero | NYN | sp | 24 | 0 | 1 | 0 | 0 | 5 | 0 | 2 | 1 | 8.5 | 2.4 | 10.9 | 8.2 | 0.9 | 3.4 | 1.21 |
| JoJo Romero* | | sp | 22 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 13.5 | 0.0 | 18.0 | 9.0 | 0.0 | 99.0 | 1.50 |
| Hector Rondon | Mia | cl | 31 | 7 | 2 | 1 | 0 | 5 | 0 | 0 | 1 | 5.6 | 1.5 | 7.1 | 10.2 | 0.5 | 6.9 | 0.79 |
| Trevor Rosenthal | SD | mr | 29 | 5 | 3 | 0 | 1 | 2 | 1 | 0 | 1 | 7.2 | 3.4 | 10.8 | 12.2 | 0.7 | 3.6 | 1.18 |
| Joe Ross | Mia | sp | 26 | 3 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 13.0 | 3.9 | 16.9 | 5.3 | 1.9 | 1.4 | 1.88 |
| Robbie Ross* | SD | mr | 30 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 6.4 | 4.8 | 12.7 | 6.4 | 0.0 | 1.3 | 1.24 |
| Tyson Ross | SF | sp | 32 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.8 | 3.0 | 12.8 | 7.5 | 0.0 | 2.5 | 1.42 |
| Zac Rosscup* | Mia | mr | 31 | 3 | 1 | 4 | 2 | 5 | 0 | 0 | 1 | 7.5 | 2.3 | 10.3 | 13.4 | 0.3 | 5.8 | 1.09 |
| Kyle Ryan* | ChN | mr | 27 | 3 | 0 | 0 | 2 | 2 | 1 | 1 | 0 | 8.9 | 4.6 | 14.2 | 6.8 | 0.4 | 1.5 | 1.50 |
| Hyun-jin Ryu* | LAN | sp | 32 | 13 | 3 | 0 | 2 | 1 | 0 | 1 | 2 | 9.3 | 2.8 | 12.2 | 7.6 | 1.4 | 2.7 | 1.34 |
| CC Sabathia* | Phi | sp | 38 | 3 | 1 | 1 | 3 | 1 | 0 | 0 | 3 | 9.9 | 2.3 | 12.7 | 8.1 | 1.8 | 3.5 | 1.35 |
| Danny Salazar | Tor | sp | 29 | 3 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 3.0 | 1.8 | 4.8 | 9.6 | 0.6 | 5.3 | 0.53 |
| Chris Sale* | Det | sp | 30 | 4 | 11 | 0 | 15 | 2 | 1 | 0 | 7 | 5.8 | 1.3 | 7.8 | 11.7 | 1.1 | 9.2 | 0.79 |
| Jeff Samardzija | Pit | sp | 34 | 6 | 3 | 2 | 8 | 2 | 1 | 1 | 3 | 7.4 | 2.2 | 10.0 | 7.4 | 0.9 | 3.4 | 1.06 |
| Aaron Sanchez | Tor | sp | 26 | 31 | 11 | 0 | 6 | 7 | 1 | 1 | 6 | 8.3 | 4.1 | 12.7 | 7.5 | 0.5 | 1.8 | 1.38 |
| Anibal Sanchez | SF | sp | 35 | 21 | 6 | 5 | 3 | 9 | 1 | 6 | 5 | 8.3 | 3.0 | 11.4 | 9.6 | 1.0 | 3.2 | 1.25 |
| Dennis Santana | Ari | sp | 23 | 4 | 1 | 3 | 4 | 7 | 0 | 3 | 3 | 11.2 | 3.6 | 15.2 | 7.7 | 1.3 | 2.1 | 1.64 |
| Josh Sborz | Min | mr | 25 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 9.7 | 3.2 | 13.0 | 11.9 | 0.5 | 3.7 | 1.44 |
| Kit Scheetz* | Tam | mr | 25 | 5 | 5 | 1 | 4 | 6 | 0 | 1 | 3 | 7.0 | 2.3 | 9.7 | 8.7 | 1.0 | 3.8 | 1.04 |
| Max Scherzer | Det | sp | 34 | 7 | 11 | 3 | 6 | 5 | 0 | 1 | 0 | 6.4 | 2.5 | 9.2 | 12.1 | 1.3 | 4.8 | 0.99 |
| John Schreiber | Atl | mr | 25 | 2 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 7.3 | 3.5 | 10.8 | 5.5 | 1.0 | 1.6 | 1.19 |
| Tanner Scott* | NYN | mr | 24 | 5 | 2 | 0 | 3 | 12 | 1 | 1 | 0 | 6.4 | 5.4 | 12.1 | 12.1 | 0.5 | 2.3 | 1.31 |
| Sam Selman* | Tex | mr | 28 | 0 | 1 | 0 | 0 | 11 | 0 | 0 | 1 | 12.3 | 10.2 | 22.5 | 9.8 | 2.0 | 1.0 | 2.50 |
| Antonio Senzatela | | sp | 24 | 6 | 10 | 0 | 8 | 1 | 1 | 2 | 3 | 8.4 | 4.1 | 12.9 | 7.2 | 1.5 | 1.8 | 1.39 |
| Mike Shawaryn | Tam | sp | 24 | 12 | 4 | 0 | 1 | 4 | 0 | 1 | 3 | 7.7 | 3.2 | 11.0 | 7.4 | 1.4 | 2.3 | 1.22 |
| Justus Sheffield* | Ari | sp | 23 | 8 | 4 | 2 | 3 | 3 | 1 | 4 | 5 | 9.3 | 4.6 | 14.1 | 8.3 | 1.1 | 1.8 | 1.54 |
| Chandler Shepherd | Atl | sp | 26 | 2 | 1 | 1 | 2 | 2 | 0 | 1 | 1 | 8.9 | 2.2 | 11.3 | 6.0 | 1.6 | 2.7 | 1.23 |
| Jimmie Sherfy | Col | mr | 27 | 5 | 3 | 0 | 1 | 3 | 0 | 0 | 4 | 7.8 | 3.2 | 11.1 | 11.2 | 0.5 | 3.6 | 1.22 |
| Matt Shoemaker | Mil | sp | 32 | 13 | 0 | 0 | 4 | 2 | 0 | 2 | 1 | 8.5 | 1.6 | 10.7 | 8.7 | 0.5 | 5.5 | 1.12 |
| Logan Shore | Bal | sp | 24 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 12.0 | 3.0 | 15.0 | 4.5 | 1.5 | 1.5 | 1.67 |
| Lucas Sims | Hou | sp | 25 | 18 | 6 | 1 | 4 | 7 | 0 | 0 | 6 | 7.9 | 5.0 | 13.2 | 11.2 | 1.6 | 2.3 | 1.43 |
| Tony Sipp* | NYN | mr | 35 | 3 | 0 | 1 | 3 | 0 | 0 | 1 | 1 | 7.6 | 2.7 | 11.0 | 10.1 | 0.5 | 3.7 | 1.14 |
| Tyler Skaggs* | StL | sp | 27 | 1 | 2 | 1 | 2 | 0 | 0 | 0 | 1 | 8.5 | 2.2 | 11.5 | 8.1 | 0.7 | 3.7 | 1.19 |
| Eric Skoglund* | LAN | sp | 26 | 1 | 0 | 1 | 4 | 0 | 1 | 0 | 0 | 7.3 | 3.8 | 12.3 | 7.0 | 0.3 | 1.8 | 1.24 |
| Devin Smeltzer* | Pit | sp | 23 | 4 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 7.0 | 2.3 | 10.1 | 8.7 | 1.7 | 3.9 | 1.03 |
| Caleb Smith* | Oak | sp | 27 | 8 | 5 | 0 | 6 | 1 | 0 | 0 | 2 | 7.3 | 4.0 | 11.8 | 9.5 | 0.9 | 2.4 | 1.26 |
| Carson Smith | Sea | mr | 29 | 15 | 2 | 0 | 4 | 3 | 1 | 2 | 4 | 6.4 | 2.8 | 9.6 | 10.1 | 0.6 | 3.6 | 1.03 |
| Joe Smith | Mil | mr | 35 | 5 | 1 | 2 | 1 | 2 | 0 | 1 | 0 | 10.5 | 1.9 | 12.7 | 7.0 | 1.6 | 3.7 | 1.38 |
| Will Smith* | Mia | cl | 29 | 4 | 1 | 1 | 1 | 2 | 0 | 0 | 2 | 7.1 | 2.8 | 10.0 | 11.5 | 0.9 | 4.2 | 1.09 |
| Drew Smyly* | Mil | sp | 30 | 25 | 4 | 3 | 1 | 4 | 1 | 4 | 9 | 10.1 | 2.7 | 12.9 | 9.9 | 2.1 | 3.7 | 1.42 |
| Cy Sneed | Pit | sp | 26 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 7.5 | 1.5 | 9.0 | 3.0 | 0.0 | 2.0 | 1.00 |
| Blake Snell* | Tor | sp | 26 | 7 | 10 | 0 | 0 | 4 | 0 | 1 | 2 | 5.4 | 3.9 | 9.3 | 10.5 | 0.4 | 2.7 | 1.04 |
| Chad Sobotka | LAN | mr | 25 | 1 | 0 | 0 | 0 | 7 | 0 | 4 | 1 | 10.6 | 7.2 | 17.8 | 8.5 | 0.3 | 1.2 | 1.97 |
| Sammy Solis* | Bal | mr | 30 | 6 | 4 | 0 | 0 | 5 | 0 | 0 | 1 | 6.5 | 5.9 | 12.3 | 11.0 | 0.9 | 1.9 | 1.37 |
| Joakim Soria | Phi | cl | 35 | 2 | 3 | 0 | 1 | 1 | 0 | 0 | 2 | 6.7 | 2.5 | 9.3 | 9.3 | 0.7 | 3.8 | 1.02 |
| Mike Soroka | Ari | sp | 21 | 6 | 5 | 1 | 4 | 6 | 2 | 0 | 4 | 10.1 | 2.6 | 12.9 | 6.9 | 1.0 | 2.7 | 1.41 |
| Craig Stammen | Mil | mr | 35 | 3 | 2 | 0 | 3 | 0 | 0 | 0 | 1 | 11.5 | 2.8 | 14.8 | 10.3 | 2.1 | 3.8 | 1.59 |
| Ryne Stanek | Oak | mr | 27 | 5 | 2 | 0 | 0 | 5 | 1 | 0 | 1 | 7.4 | 5.0 | 12.4 | 11.2 | 1.2 | 2.2 | 1.38 |
| Teddy Stankiewicz | Hou | sp | 25 | 9 | 3 | 0 | 3 | 3 | 1 | 0 | 1 | 8.7 | 3.0 | 12.2 | 5.4 | 2.3 | 1.8 | 1.30 |
| Cody Stashak | Was | mr | 25 | 2 | 0 | 0 | 0 | 2 | 0 | 0 | 2 | 4.7 | 1.3 | 6.0 | 4.3 | 0.9 | 3.3 | 0.67 |
| Josh Staumont | NYN | mr | 25 | 6 | 4 | 2 | 2 | 14 | 0 | 1 | 4 | 8.1 | 7.3 | 15.7 | 10.6 | 1.0 | 1.5 | 1.71 |
| Drew Steckenrider | NYA | mr | 28 | 4 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 5.5 | 4.3 | 10.4 | 13.5 | 0.6 | 3.1 | 1.09 |
| Robert Stock | Atl | mr | 29 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 4.0 | 3.2 | 7.1 | 12.7 | 0.8 | 4.0 | 0.79 |
| Matt Strahm* | LAA | mr | 27 | 11 | 8 | 2 | 7 | 8 | 1 | 1 | 4 | 8.1 | 4.1 | 12.7 | 10.0 | 1.4 | 2.4 | 1.36 |
| Stephen Strasburg | NYA | sp | 30 | 12 | 4 | 0 | 6 | 6 | 0 | 1 | 0 | 6.8 | 2.5 | 9.6 | 10.0 | 1.0 | 4.0 | 1.04 |
| Chris Stratton | Tor | sp | 28 | 7 | 1 | 0 | 0 | 2 | 0 | 0 | 1 | 7.6 | 3.8 | 11.4 | 6.4 | 0.8 | 1.7 | 1.27 |
| Ross Stripling | Cin | sp | 29 | 6 | 5 | 2 | 5 | 7 | 0 | 3 | 1 | 8.8 | 1.8 | 10.9 | 9.3 | 1.3 | 5.2 | 1.18 |
| Marcus Stroman | SD | sp | 28 | 11 | 10 | 0 | 11 | 8 | 1 | 2 | 4 | 8.4 | 3.0 | 11.9 | 7.1 | 0.6 | 2.4 | 1.26 |
| Pedro Strop | Tor | mr | 34 | 7 | 2 | 1 | 4 | 2 | 0 | 0 | 2 | 8.2 | 2.5 | 11.1 | 11.0 | 1.2 | 4.4 | 1.18 |
| Andrew Suarez* | SF | sp | 26 | 3 | 2 | 0 | 4 | 0 | 0 | 0 | 2 | 7.0 | 2.2 | 9.9 | 6.6 | 1.8 | 3.0 | 1.02 |
| Jose Suarez* | Tam | sp | 21 | 8 | 9 | 0 | 8 | 12 | 1 | 1 | 7 | 7.7 | 3.2 | 11.3 | 9.1 | 1.2 | 2.9 | 1.21 |
| Ranger Suarez* | Cle | sp | 23 | 0 | 3 | 0 | 0 | 1 | 1 | 0 | 1 | 7.0 | 3.9 | 10.9 | 6.8 | 1.0 | 1.7 | 1.21 |
| Wander Suero | Tor | mr | 27 | 9 | 5 | 2 | 5 | 4 | 0 | 0 | 4 | 9.2 | 3.7 | 13.5 | 7.6 | 1.0 | 2.1 | 1.43 |
| Cole Sulser | Cin | mr | 29 | 3 | 4 | 0 | 2 | 2 | 0 | 1 | 2 | 7.2 | 3.0 | 10.5 | 10.9 | 1.3 | 3.7 | 1.14 |
| Trey Supak | Ari | sp | 23 | 2 | 1 | 2 | 0 | 2 | 0 | 1 | 2 | 7.5 | 4.7 | 12.2 | 8.2 | 1.7 | 1.7 | 1.36 |
| Anthony Swarzak | Col | mr | 33 | 2 | 0 | 1 | 3 | 3 | 0 | 0 | 0 | 8.0 | 2.8 | 11.2 | 9.4 | 1.5 | 3.4 | 1.20 |
| Noah Syndergaard | | sp | 26 | 18 | 3 | 0 | 3 | 4 | 1 | 0 | 2 | 8.0 | 2.9 | 11.2 | 8.7 | 0.7 | 3.0 | 1.22 |
| Jameson Taillon | Col | sp | 27 | 2 | 2 | 2 | 1 | 0 | 0 | 3 | 0 | 8.3 | 1.8 | 10.4 | 7.4 | 0.9 | 4.0 | 1.13 |
| Masahiro Tanaka | LAN | sp | 30 | 7 | 6 | 1 | 5 | 5 | 0 | 4 | 4 | 7.5 | 1.3 | 9.0 | 9.0 | 0.7 | 7.1 | 0.98 |
| Stephen Tarpley* | LAN | mr | 26 | 7 | 3 | 3 | 5 | 11 | 1 | 0 | 5 | 7.7 | 5.1 | 13.2 | 8.2 | 0.4 | 1.6 | 1.42 |
| Curtis Taylor | SF | mr | 23 | 7 | 7 | 0 | 7 | 10 | 0 | 3 | 9 | 9.5 | 4.4 | 14.2 | 9.4 | 1.0 | 2.2 | 1.54 |
| Josh Taylor* | Tex | mr | 26 | 2 | 3 | 0 | 1 | 5 | 0 | 0 | 2 | 8.5 | 4.2 | 12.9 | 7.3 | 0.0 | 1.7 | 1.41 |
| Julio Teheran | SD | sp | 28 | 25 | 9 | 8 | 5 | 1 | 0 | 2 | 6 | 6.6 | 3.5 | 10.3 | 8.5 | 0.7 | 2.4 | 1.12 |
| Ryan Tepera | Mil | mr | 31 | 7 | 0 | 0 | 7 | 4 | 0 | 2 | 2 | 7.4 | 3.9 | 12.3 | 9.2 | 1.2 | 2.4 | 1.25 |
| Jake Thompson | SD | sp | 25 | 1 | 3 | 0 | 3 | 4 | 0 | 4 | 1 | 9.9 | 3.6 | 14.0 | 7.0 | 0.8 | 2.0 | 1.50 |
| Tyler Thornburg | Bal | mr | 30 | 9 | 3 | 0 | 4 | 1 | 0 | 0 | 4 | 6.0 | 3.4 | 9.8 | 8.9 | 0.7 | 2.6 | 1.04 |
| Trent Thornton | | sp | 25 | 3 | 5 | 2 | 4 | 7 | 0 | 1 | 0 | 10.5 | 2.7 | 13.5 | 7.9 | 1.1 | 2.9 | 1.47 |
| Lewis Thorpe* | KC | sp | 23 | 11 | 6 | 0 | 8 | 18 | 0 | 0 | 7 | 7.0 | 3.1 | 10.5 | 7.8 | 1.1 | 2.5 | 1.13 |
| Josh Tomlin | Hou | sp | 34 | 12 | 7 | 0 | 7 | 3 | 0 | 0 | 9 | 9.4 | 1.0 | 10.7 | 7.3 | 1.7 | 7.6 | 1.15 |
| Touki Toussaint | Tex | sp | 23 | 12 | 4 | 0 | 6 | 16 | 1 | 2 | 4 | 8.6 | 4.5 | 13.5 | 9.6 | 0.9 | 2.1 | 1.46 |
| Blake Treinen | Col | cl | 31 | 4 | 4 | 5 | 1 | 4 | 0 | 0 | 2 | 7.8 | 2.8 | 10.7 | 10.5 | 0.6 | 3.8 | 1.17 |
| Andrew Triggs | Atl | sp | 30 | 3 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 15.6 | 3.6 | 19.2 | 9.9 | 0.7 | 2.8 | 2.13 |
| Lou Trivino | | mr | 27 | 15 | 7 | 0 | 2 | 8 | 0 | 0 | 3 | 7.2 | 2.0 | 9.4 | 10.0 | 0.8 | 5.1 | 1.02 |
| Duane Underwood | Tex | sp | 24 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 18.0 | 0.0 | 18.0 | 4.5 | 1.5 | 99.0 | 2.00 |
| Jose Urena | Tam | sp | 27 | 4 | 2 | 0 | 5 | 2 | 0 | 0 | 5 | 7.1 | 2.6 | 10.2 | 7.3 | 1.0 | 2.8 | 1.08 |
| Julio Urias* | Oak | sp | 22 | 4 | 4 | 0 | 4 | 4 | 0 | 0 | 2 | 8.4 | 4.0 | 12.6 | 10.5 | 1.5 | 2.7 | 1.37 |
| Framber Valdez* | | sp | 25 | 19 | 3 | 2 | 5 | 6 | 0 | 0 | 7 | 6.7 | 4.9 | 12.0 | 8.7 | 1.0 | 1.8 | 1.28 |
| Andrew Vasquez* | Bos | mr | 25 | 6 | 2 | 0 | 6 | 2 | 0 | 0 | 1 | 7.1 | 4.4 | 12.1 | 11.2 | 0.9 | 2.6 | 1.27 |
| Felipe Vazquez* | NYA | cl | 27 | 2 | 1 | 0 | 4 | 1 | 1 | 1 | 1 | 7.2 | 2.4 | 10.1 | 11.9 | 1.1 | 5.0 | 1.07 |
| Vince Velasquez | StL | sp | 27 | 17 | 5 | 3 | 3 | 7 | 0 | 4 | 8 | 8.6 | 3.4 | 12.2 | 10.0 | 1.2 | 2.9 | 1.33 |
| Drew VerHagen | Cle | mr | 28 | 2 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 12.4 | 1.7 | 14.1 | 10.1 | 0.0 | 6.0 | 1.56 |
| Justin Verlander | | sp | 36 | 16 | 7 | 0 | 6 | 3 | 1 | 3 | 8 | 6.0 | 1.5 | 7.8 | 10.6 | 0.8 | 7.1 | 0.84 |
| Stephen Villines | | mr | 23 | 1 | 6 | 1 | 5 | 4 | 0 | 0 | 1 | 7.8 | 3.4 | 11.7 | 10.5 | 1.3 | 3.0 | 1.25 |
| Nick Vincent | StL | mr | 32 | 2 | 1 | 2 | 0 | 1 | 1 | 0 | 0 | 10.5 | 2.0 | 12.5 | 9.8 | 2.7 | 4.8 | 1.39 |
| Arodys Vizcaino | Cin | cl | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 23.6 | 10.1 | 33.8 | 16.9 | 3.4 | 1.7 | 3.75 |
| Michael Wacha | Bos | sp | 27 | 7 | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 8.7 | 3.9 | 12.8 | 9.2 | 1.7 | 2.3 | 1.40 |
| Jacob Waguespack | | sp | 25 | 2 | 2 | 0 | 2 | 2 | 0 | 0 | 0 | 4.6 | 4.6 | 10.0 | 8.1 | 0.0 | 1.8 | 1.03 |
| Bobby Wahl | Sea | mr | 27 | 2 | 0 | 0 | 4 | 1 | 0 | 0 | 1 | 6.8 | 2.0 | 11.5 | 17.5 | 0.7 | 8.7 | 0.97 |
| Adam Wainwright | Pit | sp | 37 | 9 | 5 | 1 | 6 | 1 | 0 | 2 | 5 | 7.5 | 3.4 | 11.3 | 8.0 | 0.9 | 2.3 | 1.22 |
| Marcus Walden | Mia | mr | 30 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 13.5 | 27.0 | 40.5 | 0.0 | 13.5 | 0.0 | 4.50 |
| Adam Warren | Sea | mr | 31 | 9 | 3 | 1 | 3 | 7 | 0 | 0 | 3 | 9.1 | 4.5 | 13.9 | 10.6 | 2.1 | 2.4 | 1.51 |
| Tony Watson* | Tor | mr | 34 | 7 | 7 | 0 | 1 | 0 | 0 | 1 | 3 | 6.6 | 1.8 | 8.6 | 10.1 | 0.4 | 5.5 | 0.94 |
| Luke Weaver | Cle | sp | 25 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 12.7 | 4.0 | 17.0 | 7.8 | 1.3 | 1.9 | 1.86 |
| Logan Webb | LAA | sp | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.8 | 0.0 | 6.8 | 0.0 | 6.8 | 0.0 | 0.75 |
| Tyler Webb* | | mr | 28 | 1 | 2 | 0 | 1 | 1 | 0 | 0 | 1 | 7.5 | 2.3 | 10.0 | 9.8 | 0.5 | 4.2 | 1.09 |
| Ryan Weber | | sp | 28 | 5 | 6 | 1 | 11 | 2 | 0 | 2 | 8 | 10.0 | 1.8 | 12.4 | 5.3 | 0.8 | 2.9 | 1.32 |
| Patrick Weigel | Tex | sp | 24 | 39 | 3 | 0 | 8 | 9 | 0 | 1 | 11 | 10.3 | 4.4 | 15.1 | 7.3 | 1.3 | 1.7 | 1.63 |
| Blake Weiman* | Atl | mr | 23 | 3 | 1 | 0 | 2 | 1 | 0 | 1 | 3 | 10.8 | 2.2 | 13.4 | 6.8 | 1.0 | 3.1 | 1.44 |
| J.B. Wendelken | | mr | 26 | 8 | 2 | 2 | 4 | 3 | 1 | 0 | 1 | 7.8 | 2.8 | 11.1 | 9.3 | 1.4 | 3.3 | 1.18 |
| Joey Wentz* | Ari | sp | 21 | 6 | 0 | 0 | 0 | 2 | 0 | 1 | 1 | 6.8 | 5.1 | 11.8 | 7.9 | 0.6 | 1.6 | 1.31 |
| Zack Wheeler | Mia | sp | 29 | 10 | 3 | 2 | 13 | 1 | 0 | 3 | 1 | 7.4 | 2.6 | 10.6 | 9.3 | 0.9 | 3.6 | 1.12 |
| Mitchell White | Cin | sp | 24 | 1 | 0 | 0 | 0 | 3 | 0 | 1 | 0 | 12.3 | 2.5 | 14.7 | 6.9 | 2.0 | 2.8 | 1.64 |
| Forrest Whitley | Atl | sp | 21 | 6 | 6 | 1 | 2 | 8 | 1 | 3 | 1 | 7.4 | 4.8 | 12.3 | 10.3 | 0.8 | 2.2 | 1.35 |
| Rowan Wick | Was | mr | 26 | 3 | 2 | 0 | 1 | 2 | 0 | 1 | 1 | 10.1 | 7.2 | 17.8 | 9.2 | 2.9 | 1.3 | 1.93 |
| Taylor Widener | Ari | sp | 24 | 2 | 1 | 0 | 1 | 3 | 0 | 0 | 0 | 7.4 | 8.4 | 16.2 | 10.1 | 1.3 | 1.2 | 1.76 |
| Brad Wieck* | StL | mr | 27 | 9 | 2 | 0 | 4 | 9 | 1 | 1 | 0 | 6.1 | 6.0 | 12.7 | 12.5 | 0.9 | 2.1 | 1.34 |
| Aaron Wilkerson | KC | sp | 30 | 9 | 2 | 0 | 3 | 3 | 0 | 0 | 0 | 9.5 | 4.3 | 14.4 | 6.8 | 0.9 | 1.6 | 1.54 |
| Taylor Williams | StL | mr | 27 | 5 | 3 | 1 | 1 | 4 | 0 | 2 | 2 | 8.0 | 3.6 | 11.8 | 9.2 | 1.1 | 2.6 | 1.29 |
| Trevor Williams | Tam | sp | 27 | 9 | 5 | 0 | 7 | 2 | 1 | 2 | 6 | 9.0 | 2.5 | 12.0 | 7.2 | 1.4 | 2.8 | 1.29 |
| Bryse Wilson | StL | sp | 21 | 3 | 7 | 0 | 10 | 6 | 2 | 2 | 3 | 7.1 | 2.5 | 10.0 | 8.2 | 0.9 | 3.3 | 1.06 |
| Justin Wilson* | Det | mr | 31 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 9.3 | 8.3 | 17.7 | 15.1 | 2.6 | 1.8 | 1.96 |
| Dan Winkler | LAN | mr | 29 | 3 | 4 | 1 | 4 | 0 | 0 | 3 | 2 | 7.3 | 3.5 | 11.2 | 9.3 | 1.0 | 2.7 | 1.19 |
| Matt Wisler | Tam | sp | 26 | 3 | 1 | 1 | 0 | 1 | 3 | 0 | 1 | 9.6 | 2.8 | 12.4 | 8.8 | 1.7 | 3.2 | 1.38 |
| Nick Wittgren | StL | mr | 28 | 12 | 3 | 2 | 4 | 2 | 2 | 0 | 2 | 8.7 | 2.1 | 11.2 | 9.0 | 1.0 | 4.3 | 1.20 |
| Alex Wood* | | sp | 28 | 1 | 0 | 4 | 3 | 0 | 0 | 1 | 3 | 7.4 | 3.2 | 11.0 | 9.2 | 0.9 | 2.9 | 1.17 |
| Hunter Wood | | mr | 25 | 1 | 5 | 0 | 3 | 5 | 0 | 0 | 0 | 11.7 | 3.0 | 15.2 | 8.3 | 1.8 | 2.8 | 1.62 |
| Jake Woodford | | sp | 22 | 7 | 1 | 1 | 3 | 7 | 0 | 4 | 3 | 11.8 | 5.3 | 17.4 | 5.5 | 1.3 | 1.0 | 1.89 |
| Brandon Woodruff | ChA | sp | 26 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.4 | 3.2 | 5.6 | 8.7 | 0.0 | 2.8 | 0.62 |
| Jordan Yamamoto | | sp | 23 | 11 | 1 | 0 | 1 | 1 | 0 | 3 | 2 | 9.5 | 3.3 | 12.9 | 8.4 | 1.7 | 2.5 | 1.43 |
| Ryan Yarbrough* | SD | mr | 27 | 12 | 8 | 5 | 6 | 1 | 0 | 0 | 2 | 10.2 | 4.0 | 14.8 | 6.9 | 1.1 | 1.7 | 1.59 |
| Kirby Yates | Bos | mr | 32 | 5 | 3 | 1 | 0 | 1 | 0 | 0 | 1 | 5.3 | 2.7 | 8.1 | 12.5 | 1.2 | 4.6 | 0.90 |
| Huascar Ynoa | Ari | sp | 21 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 7.4 | 12.3 | 19.6 | 6.1 | 0.0 | 0.5 | 2.18 |
| Daniel Zamora* | Cin | mr | 26 | 2 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 10.2 | 5.8 | 16.4 | 10.4 | 1.1 | 1.8 | 1.78 |
| T.J. Zeuch | Cin | sp | 23 | 3 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 11.5 | 0.6 | 12.1 | 6.3 | 1.1 | 11.0 | 1.34 |
| Jordan Zimmermann | Pit | sp | 33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 13.5 | 0.0 | 99.0 | 0.00 |
| Analytical |
| Name | Team | P | Age | OPS | BIP | IPAVG | TBW | TBW/BF | TBWH | TBWH/BF | RC | RC27 | RCERA | CERA |
| Austin L. Adams | Cle | mr | 28 | .725 | 105 | .343 | 97 | .458 | 100 | .472 | 25.8 | 4.9 | 4.51 | 4.63 |
| Chance Adams | KC | sp | 24 | 1.004 | 30 | .433 | 25 | .610 | 25 | .610 | 8.6 | 8.9 | 8.36 | 9.63 |
| Dario Agrazal | LAA | sp | 24 | .700 | 166 | .295 | 82 | .404 | 84 | .414 | 22.8 | 4.4 | 4.04 | 4.01 |
| Jorge Alcala | Tor | sp | 23 | .831 | 17 | .235 | 17 | .586 | 17 | .586 | 3.7 | 4.6 | 4.14 | 3.74 |
| Sandy Alcantara | Bos | sp | 23 | .828 | 69 | .377 | 56 | .496 | 58 | .513 | 17.4 | 6.8 | 6.22 | 6.91 |
| Scott Alexander* | LAA | mr | 29 | .538 | 77 | .247 | 41 | .339 | 41 | .339 | 7.5 | 2.2 | 1.99 | 2.07 |
| Kolby Allard* | | sp | 21 | .713 | 486 | .284 | 320 | .440 | 329 | .453 | 83.2 | 4.4 | 3.99 | 3.85 |
| Cody Allen | Bal | cl | 30 | .629 | 235 | .268 | 150 | .397 | 152 | .402 | 33.5 | 3.2 | 2.91 | 2.92 |
| Dan Altavilla | LAN | mr | 26 | .687 | 88 | .307 | 56 | .409 | 59 | .431 | 14.1 | 4.1 | 3.71 | 4.37 |
| Jose Alvarado* | Ari | mr | 24 | .633 | 153 | .294 | 95 | .397 | 96 | .402 | 19.3 | 2.9 | 2.65 | 2.58 |
| Jose Alvarez* | Min | mr | 30 | .751 | 150 | .347 | 118 | .468 | 119 | .472 | 32.4 | 5.1 | 4.57 | 4.76 |
| Yadier Alvarez | Hou | sp | 23 | .473 | 8 | .000 | 6 | .375 | 6 | .375 | 0.8 | 1.8 | 1.72 | 1.48 |
| Adbert Alzolay | Oak | sp | 24 | .793 | 178 | .315 | 118 | .488 | 119 | .492 | 34.8 | 5.8 | 5.28 | 4.82 |
| Brett Anderson* | Sea | sp | 31 | .713 | 663 | .284 | 395 | .436 | 402 | .444 | 97.7 | 4.0 | 3.64 | 3.79 |
| Ian Anderson | Tam | sp | 21 | .769 | 439 | .269 | 353 | .484 | 366 | .501 | 93.8 | 5.1 | 4.61 | 4.95 |
| Justin Anderson | Tex | mr | 26 | .619 | 9 | .222 | 6 | .429 | 6 | .429 | 1.3 | 3.5 | 3.49 | 2.31 |
| Nick Anderson | Tex | mr | 28 | .825 | 231 | .338 | 196 | .520 | 198 | .525 | 55.4 | 5.9 | 5.28 | 5.44 |
| Shaun Anderson | SF | sp | 24 | .711 | 181 | .304 | 115 | .439 | 116 | .443 | 29.1 | 4.2 | 3.77 | 3.90 |
| Tanner Anderson | Mil | mr | 26 | .782 | 369 | .295 | 240 | .482 | 244 | .490 | 63.8 | 4.9 | 4.46 | 4.52 |
| Tyler Anderson* | Bos | sp | 29 | .627 | 87 | .241 | 57 | .401 | 58 | .408 | 11.3 | 2.7 | 2.48 | 2.64 |
| Victor Arano | Tex | mr | 24 | .487 | 35 | .257 | 13 | .260 | 14 | .280 | 2.8 | 1.9 | 1.73 | 1.66 |
| Chris Archer | SD | sp | 30 | .784 | 399 | .346 | 299 | .479 | 303 | .486 | 86.3 | 5.5 | 4.99 | 4.91 |
| Rogelio Armenteros | Sea | sp | 25 | .699 | 368 | .291 | 254 | .433 | 261 | .445 | 65.6 | 4.4 | 3.90 | 4.07 |
| Shawn Armstrong | | mr | 28 | .628 | 149 | .268 | 105 | .409 | 105 | .409 | 21.1 | 2.9 | 2.61 | 2.65 |
| Jake Arrieta | Min | sp | 33 | .699 | 366 | .273 | 251 | .438 | 259 | .452 | 64.5 | 4.3 | 3.83 | 3.65 |
| Luis Avilan* | | mr | 29 | .764 | 47 | .404 | 34 | .459 | 34 | .459 | 9.2 | 4.8 | 4.24 | 4.09 |
| Michel Baez | Tex | sp | 23 | .902 | 200 | .335 | 175 | .561 | 177 | .567 | 56.7 | 7.8 | 6.95 | 7.06 |
| Pedro Baez | Min | mr | 31 | .665 | 245 | .282 | 155 | .423 | 155 | .423 | 35.8 | 3.5 | 3.16 | 2.86 |
| Anthony Banda* | Det | sp | 25 | .373 | 70 | .200 | 22 | .212 | 23 | .221 | 3.6 | 1.1 | 1.02 | 0.93 |
| Manny Banuelos* | ChA | sp | 28 | .766 | 102 | .353 | 68 | .456 | 69 | .463 | 19.1 | 5.0 | 4.46 | 4.86 |
| Jacob Barnes | Tor | mr | 29 | .584 | 228 | .285 | 130 | .350 | 135 | .364 | 30.7 | 3.2 | 2.88 | 2.88 |
| Matt Barnes | Det | mr | 29 | .757 | 89 | .281 | 85 | .494 | 87 | .506 | 21.6 | 4.9 | 4.37 | 4.65 |
| Tony Barnette | Mil | mr | 35 | .629 | 100 | .280 | 56 | .373 | 59 | .393 | 12.8 | 3.1 | 2.75 | 2.68 |
| Kyle Barraclough | Was | mr | 29 | .829 | 4 | .250 | 4 | .571 | 4 | .571 | 0.7 | 3.9 | 2.92 | 3.75 |
| Jaime Barria | Cle | sp | 22 | .757 | 510 | .302 | 338 | .460 | 349 | .475 | 92.3 | 4.8 | 4.34 | 4.38 |
| Chris Bassitt | Mil | sp | 30 | .785 | 208 | .322 | 144 | .477 | 146 | .483 | 40.3 | 5.2 | 4.80 | 5.19 |
| Trevor Bauer | | sp | 28 | .602 | 590 | .273 | 344 | .364 | 357 | .377 | 77.3 | 3.0 | 2.68 | 2.62 |
| Gerson Bautista | Cin | mr | 24 | .700 | 138 | .290 | 93 | .441 | 95 | .450 | 23.0 | 4.1 | 3.72 | 3.33 |
| Cam Bedrosian | Tam | mr | 27 | .734 | 152 | .336 | 106 | .451 | 107 | .455 | 27.7 | 4.5 | 4.11 | 4.18 |
| Tyler Beede | NYA | sp | 26 | .696 | 18 | .389 | 9 | .391 | 9 | .391 | 2.0 | 2.9 | 2.50 | 2.82 |
| Jalen Beeks* | LAN | sp | 25 | .710 | 461 | .280 | 346 | .459 | 347 | .460 | 84.5 | 4.2 | 3.80 | 3.60 |
| Travis Bergen* | ChA | mr | 25 | .968 | 52 | .288 | 56 | .622 | 58 | .644 | 16.9 | 7.8 | 7.22 | 7.91 |
| Jose Berrios | Det | sp | 25 | .621 | 443 | .255 | 281 | .394 | 289 | .405 | 61.6 | 3.1 | 2.79 | 2.51 |
| Trevor Bettencourt | Mia | mr | 24 | .747 | 137 | .321 | 104 | .460 | 107 | .473 | 28.1 | 4.9 | 4.40 | 4.32 |
| Chad Bettis | LAA | sp | 30 | .594 | 30 | .100 | 19 | .422 | 19 | .422 | 3.9 | 3.2 | 2.96 | 3.08 |
| Jesse Biddle* | Col | mr | 27 | .653 | 81 | .309 | 50 | .394 | 51 | .402 | 11.0 | 3.1 | 2.82 | 3.10 |
| Shane Bieber | KC | sp | 24 | .593 | 653 | .259 | 313 | .354 | 322 | .364 | 69.9 | 2.8 | 2.56 | 2.36 |
| Brandon Bielak | Ari | sp | 23 | .739 | 66 | .303 | 46 | .447 | 48 | .466 | 12.5 | 4.9 | 4.48 | 4.68 |
| Ray Black | NYN | mr | 29 | .676 | 107 | .290 | 105 | .443 | 108 | .456 | 24.9 | 4.0 | 3.73 | 3.73 |
| Richard Bleier* | ChA | mr | 32 | .675 | 140 | .286 | 71 | .394 | 73 | .406 | 18.7 | 3.9 | 3.50 | 3.46 |
| Jerry Blevins* | Sea | mr | 35 | .824 | 205 | .332 | 167 | .511 | 170 | .520 | 49.5 | 6.2 | 5.65 | 5.48 |
| Ben Bowden* | Oak | mr | 24 | .861 | 167 | .311 | 155 | .548 | 157 | .555 | 43.5 | 6.4 | 5.94 | 6.89 |
| Matthew Bowman | ChN | mr | 28 | .735 | 183 | .306 | 130 | .461 | 132 | .468 | 31.2 | 4.0 | 3.59 | 3.82 |
| Matt Boyd* | | sp | 28 | .626 | 488 | .279 | 279 | .380 | 288 | .392 | 66.4 | 3.3 | 3.00 | 2.60 |
| Brad Brach | SD | cl | 33 | .774 | 174 | .356 | 129 | .471 | 131 | .478 | 35.6 | 5.2 | 4.75 | 4.90 |
| Archie Bradley | | mr | 26 | .754 | 247 | .304 | 175 | .469 | 179 | .480 | 47.4 | 4.9 | 4.50 | 4.34 |
| Ryan Brasier | Mil | mr | 31 | .787 | 227 | .344 | 148 | .473 | 149 | .476 | 40.8 | 5.1 | 4.55 | 4.98 |
| Steven Brault* | Cle | mr | 27 | .718 | 106 | .330 | 69 | .437 | 70 | .443 | 17.9 | 4.4 | 4.03 | 4.07 |
| John Brebbia | Min | mr | 29 | .542 | 230 | .248 | 137 | .347 | 138 | .349 | 26.0 | 2.2 | 2.01 | 1.68 |
| Brandon Brennan | ChN | mr | 27 | .569 | 136 | .250 | 69 | .342 | 72 | .356 | 15.6 | 2.9 | 2.68 | 2.57 |
| Colten Brewer | Cle | mr | 26 | .674 | 48 | .354 | 30 | .405 | 30 | .405 | 6.6 | 3.3 | 3.02 | 3.74 |
| Zack Britton* | NYA | cl | 31 | .725 | 178 | .315 | 123 | .454 | 124 | .458 | 30.3 | 4.2 | 3.84 | 3.60 |
| Walker Buehler | Cle | sp | 24 | .773 | 380 | .313 | 306 | .490 | 312 | .499 | 81.9 | 5.0 | 4.63 | 4.46 |
| Madison Bumgarner* | Mia | sp | 29 | .650 | 524 | .269 | 337 | .407 | 344 | .416 | 80.0 | 3.5 | 3.20 | 2.87 |
| Aaron Bummer* | LAA | mr | 25 | .618 | 158 | .278 | 88 | .376 | 89 | .380 | 16.5 | 2.4 | 2.19 | 2.61 |
| Dylan Bundy | LAA | sp | 26 | .663 | 482 | .270 | 313 | .420 | 318 | .427 | 74.2 | 3.6 | 3.25 | 2.98 |
| Brock Burke* | ChN | sp | 22 | 1.018 | 35 | .314 | 41 | .707 | 41 | .707 | 12.2 | 8.2 | 7.23 | 6.29 |
| Corbin Burnes | Ari | mr | 24 | .878 | 197 | .325 | 158 | .541 | 161 | .551 | 46.8 | 6.3 | 5.89 | 6.39 |
| Matt Bush | SF | mr | 33 | .640 | 166 | .295 | 100 | .391 | 101 | .395 | 23.9 | 3.5 | 3.20 | 3.15 |
| Ty Buttrey | Ari | mr | 26 | .718 | 231 | .329 | 167 | .438 | 171 | .449 | 44.6 | 4.6 | 4.16 | 4.18 |
| Genesis Cabrera* | Ari | sp | 22 | .840 | 49 | .367 | 41 | .526 | 41 | .526 | 12.1 | 6.5 | 5.98 | 6.40 |
| Trevor Cahill | | sp | 31 | .753 | 213 | .305 | 141 | .452 | 146 | .468 | 37.8 | 4.6 | 4.27 | 4.52 |
| Griffin Canning | Tam | sp | 23 | .776 | 352 | .290 | 252 | .489 | 257 | .499 | 69.4 | 5.2 | 4.70 | 4.39 |
| Shane Carle | Pit | mr | 27 | .607 | 10 | .300 | 5 | .357 | 5 | .357 | 1.3 | 3.8 | 3.39 | 4.23 |
| Carlos Carrasco | Was | sp | 32 | .705 | 234 | .295 | 159 | .438 | 162 | .446 | 42.1 | 4.3 | 3.88 | 3.59 |
| Cody Carroll | NYN | mr | 26 | .683 | 59 | .305 | 40 | .417 | 41 | .427 | 10.7 | 4.4 | 4.00 | 4.14 |
| Diego Castillo | LAN | mr | 25 | .533 | 60 | .283 | 34 | .327 | 35 | .337 | 7.0 | 2.5 | 2.20 | 1.98 |
| Luis Castillo | | sp | 26 | .680 | 504 | .286 | 332 | .427 | 337 | .433 | 79.9 | 3.8 | 3.42 | 3.27 |
| Dylan Cease | Mil | sp | 23 | .667 | 318 | .239 | 222 | .429 | 226 | .436 | 51.9 | 3.7 | 3.42 | 3.53 |
| Xavier Cedeno* | Pit | mr | 32 | .651 | 36 | .306 | 25 | .403 | 26 | .419 | 5.8 | 3.8 | 3.52 | 4.20 |
| Luis Cessa | | sp | 27 | .731 | 109 | .284 | 68 | .447 | 70 | .461 | 16.6 | 4.0 | 3.66 | 3.89 |
| Jhoulys Chacin | Det | sp | 31 | .656 | 353 | .246 | 227 | .413 | 234 | .425 | 51.2 | 3.4 | 3.09 | 3.25 |
| Andrew Chafin* | | mr | 29 | .743 | 83 | .301 | 69 | .483 | 70 | .490 | 17.6 | 4.7 | 4.24 | 3.70 |
| Aroldis Chapman* | | cl | 31 | .744 | 120 | .358 | 118 | .466 | 123 | .486 | 34.0 | 5.3 | 4.73 | 4.37 |
| JT Chargois | LAN | mr | 28 | .717 | 72 | .278 | 59 | .431 | 63 | .460 | 17.0 | 5.0 | 4.74 | 4.85 |
| Jesse Chavez | StL | mr | 35 | .613 | 354 | .249 | 204 | .388 | 207 | .394 | 41.7 | 2.8 | 2.55 | 2.40 |
| Yonny Chirinos | ChN | sp | 25 | .846 | 152 | .303 | 113 | .531 | 115 | .540 | 30.6 | 5.5 | 4.96 | 5.43 |
| Adam Cimber | LAA | mr | 28 | .692 | 204 | .260 | 115 | .409 | 124 | .441 | 27.6 | 3.5 | 3.18 | 3.18 |
| Tony Cingrani* | Hou | mr | 29 | .296 | 10 | .200 | 4 | .190 | 4 | .190 | 0.5 | 0.8 | 0.69 | 0.76 |
| Steve Cishek | Min | mr | 33 | .668 | 178 | .287 | 122 | .418 | 125 | .428 | 28.3 | 3.6 | 3.16 | 3.17 |
| Aaron Civale | Was | sp | 24 | .657 | 179 | .223 | 98 | .410 | 102 | .427 | 22.0 | 3.2 | 2.92 | 2.50 |
| Alex Claudio* | | mr | 27 | .800 | 244 | .377 | 158 | .470 | 161 | .479 | 46.8 | 5.6 | 5.12 | 4.85 |
| Michael Clevinger | Bos | sp | 28 | .709 | 271 | .288 | 207 | .455 | 208 | .457 | 51.7 | 4.3 | 3.90 | 4.01 |
| Tyler Clippard | Bal | mr | 34 | .732 | 200 | .280 | 156 | .468 | 159 | .477 | 40.4 | 4.6 | 4.06 | 3.87 |
| Corbin Clouse* | Cle | mr | 24 | .882 | 44 | .409 | 40 | .526 | 42 | .553 | 13.2 | 7.3 | 6.54 | 6.85 |
| Gerrit Cole | LAA | sp | 28 | .642 | 509 | .299 | 325 | .399 | 330 | .405 | 79.4 | 3.6 | 3.19 | 2.76 |
| Taylor Cole | ChN | mr | 29 | .751 | 150 | .313 | 125 | .473 | 130 | .492 | 31.2 | 4.4 | 4.03 | 4.08 |
| Alex Colome | | cl | 30 | .703 | 172 | .331 | 113 | .414 | 120 | .440 | 29.6 | 4.1 | 3.84 | 3.77 |
| Patrick Corbin* | Bal | sp | 29 | .668 | 480 | .271 | 341 | .427 | 349 | .437 | 79.3 | 3.6 | 3.23 | 2.98 |
| Nestor Cortes* | Tam | sp | 24 | .801 | 220 | .282 | 164 | .508 | 166 | .514 | 41.9 | 5.0 | 4.55 | 4.83 |
| Kyle Crick | | mr | 26 | .708 | 138 | .297 | 104 | .448 | 105 | .453 | 27.7 | 4.8 | 4.24 | 4.19 |
| Kyle Crockett* | Min | mr | 27 | .624 | 166 | .289 | 87 | .378 | 88 | .383 | 19.3 | 3.0 | 2.69 | 2.32 |
| Yu Darvish | NYA | sp | 32 | .709 | 474 | .308 | 340 | .438 | 349 | .450 | 91.7 | 4.5 | 4.06 | 3.90 |
| Zach Davies | ChA | sp | 26 | .765 | 290 | .279 | 199 | .482 | 202 | .489 | 51.2 | 4.7 | 4.27 | 4.45 |
| Austin Davis* | | mr | 26 | .624 | 178 | .303 | 116 | .387 | 116 | .387 | 25.6 | 3.1 | 2.83 | 3.03 |
| Wade Davis | Det | cl | 33 | .532 | 139 | .252 | 84 | .340 | 86 | .348 | 16.0 | 2.3 | 2.09 | 1.98 |
| Grant Dayton* | KC | mr | 31 | .798 | 77 | .312 | 76 | .517 | 77 | .524 | 19.5 | 5.1 | 4.55 | 4.63 |
| Enyel de los Santos | Oak | sp | 23 | .798 | 214 | .318 | 166 | .487 | 173 | .507 | 47.7 | 5.7 | 5.06 | 5.27 |
| Dean Deetz | StL | mr | 25 | .711 | 156 | .295 | 120 | .448 | 123 | .459 | 30.2 | 4.4 | 3.99 | 3.99 |
| Jacob deGrom | Tor | sp | 31 | .609 | 556 | .281 | 352 | .380 | 358 | .386 | 81.0 | 3.2 | 2.86 | 2.61 |
| Randall Delgado | Mil | mr | 29 | .928 | 104 | .346 | 90 | .570 | 91 | .576 | 29.7 | 8.4 | 7.52 | 7.48 |
| Anthony DeSclafani | Ari | sp | 29 | .687 | 482 | .270 | 309 | .430 | 315 | .439 | 73.3 | 3.7 | 3.41 | 3.27 |
| Chris Devenski | Det | mr | 28 | .700 | 149 | .289 | 101 | .433 | 104 | .446 | 25.4 | 4.0 | 3.56 | 3.33 |
| Edwin Diaz | Cle | cl | 25 | .713 | 122 | .320 | 116 | .443 | 124 | .473 | 29.7 | 4.3 | 3.99 | 4.16 |
| Jumbo Diaz | NYN | mr | 35 | .874 | 213 | .347 | 193 | .545 | 197 | .556 | 58.4 | 6.9 | 6.25 | 6.40 |
| Miguel Diaz | Tex | mr | 24 | .983 | 15 | .400 | 18 | .621 | 18 | .621 | 6.4 | 11.6 | 10.43 | 11.76 |
| Phillip Diehl* | Bos | mr | 24 | .657 | 323 | .316 | 214 | .397 | 222 | .412 | 54.5 | 3.9 | 3.50 | 3.50 |
| Jake Diekman* | | mr | 32 | .551 | 69 | .304 | 46 | .351 | 46 | .351 | 8.4 | 2.3 | 2.04 | 2.21 |
| Kyle Dohy* | Hou | mr | 22 | .786 | 156 | .288 | 212 | .526 | 218 | .541 | 52.8 | 5.5 | 4.99 | 5.85 |
| Seranthony Dominguez | StL | cl | 24 | .555 | 79 | .278 | 53 | .361 | 53 | .361 | 10.6 | 2.6 | 2.36 | 2.14 |
| Sean Doolittle* | | cl | 32 | .559 | 222 | .225 | 137 | .370 | 137 | .370 | 25.1 | 2.3 | 2.06 | 1.59 |
| Oliver Drake | Mia | mr | 32 | .411 | 11 | .273 | 5 | .250 | 5 | .250 | 0.6 | 1.0 | 0.91 | 0.93 |
| Tyler Duffey | | mr | 28 | .613 | 78 | .295 | 41 | .369 | 41 | .369 | 8.4 | 2.6 | 2.53 | 2.42 |
| Danny Duffy* | SF | sp | 30 | .702 | 279 | .312 | 167 | .413 | 172 | .426 | 40.1 | 3.7 | 3.40 | 3.84 |
| Robert Dugger | Tam | sp | 23 | .897 | 72 | .375 | 59 | .562 | 59 | .562 | 17.7 | 6.7 | 6.06 | 6.34 |
| Zach Duke* | KC | mr | 36 | .707 | 75 | .307 | 53 | .442 | 54 | .450 | 13.4 | 4.4 | 3.93 | 3.75 |
| Justin Dunn | Ari | sp | 23 | .968 | 19 | .316 | 15 | .577 | 16 | .615 | 4.6 | 6.9 | 6.25 | 8.06 |
| Jon Duplantier | Col | sp | 24 | .775 | 142 | .282 | 107 | .489 | 110 | .502 | 28.5 | 5.0 | 4.49 | 4.16 |
| Sam Dyson | Tam | mr | 31 | .939 | 94 | .340 | 81 | .596 | 81 | .596 | 27.1 | 8.5 | 7.65 | 7.82 |
| Carl Edwards Jr. | | mr | 27 | .581 | 77 | .260 | 57 | .375 | 59 | .388 | 12.9 | 3.3 | 3.02 | 2.93 |
| Zach Eflin | Cle | sp | 25 | .708 | 462 | .312 | 277 | .421 | 284 | .432 | 76.7 | 4.4 | 4.04 | 3.98 |
| Jerad Eickhoff | LAA | sp | 28 | .689 | 266 | .312 | 177 | .424 | 179 | .429 | 44.5 | 4.0 | 3.62 | 3.60 |
| Roenis Elias* | Cle | mr | 30 | .808 | 136 | .301 | 102 | .510 | 103 | .515 | 27.2 | 5.4 | 4.79 | 5.28 |
| Seth Elledge | LAA | mr | 23 | 1.474 | 11 | .455 | 19 | 1.000 | 19 | 1.000 | 7.7 | 18.9 | 16.98 | 19.00 |
| Nathan Eovaldi | LAA | sp | 29 | .797 | 321 | .302 | 226 | .504 | 227 | .507 | 58.2 | 4.8 | 4.35 | 4.69 |
| Robbie Erlin* | | mr | 28 | .601 | 612 | .261 | 313 | .371 | 315 | .374 | 62.3 | 2.5 | 2.34 | 2.24 |
| Luis Escobar | Tor | sp | 23 | 1.286 | 5 | .400 | 6 | .857 | 6 | .857 | 1.9 | 10.1 | 9.05 | 12.85 |
| Raynel Espinal | NYN | mr | 25 | .680 | 283 | .276 | 196 | .422 | 205 | .441 | 44.8 | 3.5 | 3.13 | 3.06 |
| Carlos Estevez | Min | mr | 26 | .701 | 15 | .267 | 10 | .400 | 11 | .440 | 3.0 | 4.7 | 4.25 | 4.37 |
| Tommy Eveld | Cle | mr | 25 | .561 | 76 | .250 | 42 | .341 | 44 | .358 | 9.0 | 2.7 | 2.50 | 2.78 |
| Alex Faedo | Hou | sp | 23 | .786 | 346 | .303 | 225 | .474 | 231 | .486 | 64.4 | 5.4 | 4.83 | 4.91 |
| Jeurys Familia | | cl | 29 | .764 | 137 | .372 | 104 | .458 | 107 | .471 | 29.9 | 5.3 | 4.71 | 4.70 |
| Jacob Faria | Tam | sp | 25 | .834 | 137 | .328 | 120 | .517 | 124 | .534 | 36.3 | 6.7 | 6.21 | 6.56 |
| Erick Fedde | Cle | sp | 26 | .786 | 190 | .300 | 145 | .492 | 149 | .505 | 40.3 | 5.3 | 4.90 | 5.00 |
| Michael Feliz | Oak | mr | 26 | 1.750 | 2 | .500 | 5 | 1.250 | 5 | 1.250 | 1.3 | 11.3 | 10.13 | 20.49 |
| Caleb Ferguson* | Col | mr | 22 | .751 | 407 | .312 | 325 | .470 | 333 | .482 | 82.5 | 4.5 | 4.10 | 4.23 |
| Junior Fernandez | StL | mr | 22 | .892 | 18 | .333 | 17 | .567 | 17 | .567 | 4.5 | 6.4 | 5.77 | 7.48 |
| J.P. Feyereisen | Was | mr | 26 | .792 | 70 | .357 | 60 | .469 | 65 | .508 | 17.6 | 5.6 | 5.09 | 5.41 |
| Josh Fields | Phi | mr | 33 | .605 | 155 | .277 | 89 | .366 | 92 | .379 | 19.6 | 2.9 | 2.64 | 2.68 |
| Mike Fiers | | sp | 34 | .678 | 534 | .262 | 317 | .416 | 327 | .429 | 79.9 | 3.9 | 3.52 | 3.42 |
| Jack Flaherty | Bal | sp | 23 | .625 | 446 | .238 | 302 | .407 | 308 | .415 | 63.7 | 3.0 | 2.76 | 2.57 |
| Chris Flexen | Hou | sp | 24 | .745 | 11 | .455 | 8 | .444 | 8 | .444 | 2.2 | 4.5 | 4.04 | 3.69 |
| Dylan Floro | Cle | mr | 28 | .984 | 71 | .310 | 67 | .638 | 67 | .638 | 20.6 | 8.0 | 7.46 | 7.81 |
| Mike Foltynewicz | | sp | 27 | .772 | 382 | .280 | 296 | .493 | 300 | .500 | 75.7 | 4.7 | 4.23 | 4.23 |
| Wilmer Font | SF | sp | 29 | .685 | 245 | .302 | 148 | .412 | 152 | .423 | 38.7 | 4.0 | 3.71 | 3.48 |
| Kyle Freeland* | ChA | sp | 26 | .718 | 606 | .282 | 397 | .441 | 411 | .457 | 102.2 | 4.3 | 3.95 | 4.11 |
| Max Fried* | Ari | sp | 25 | .658 | 116 | .259 | 85 | .427 | 86 | .432 | 19.5 | 3.7 | 3.31 | 3.35 |
| Jace Fry* | Bos | mr | 25 | .730 | 116 | .328 | 89 | .447 | 91 | .457 | 23.6 | 4.7 | 4.16 | 4.63 |
| Paul Fry* | ChA | mr | 26 | .632 | 210 | .295 | 134 | .391 | 137 | .399 | 30.1 | 3.3 | 2.91 | 3.11 |
| Carson Fulmer | Hou | sp | 25 | .719 | 97 | .309 | 69 | .434 | 72 | .453 | 18.3 | 4.6 | 4.26 | 4.80 |
| Kyle Funkhouser | KC | sp | 25 | .677 | 125 | .264 | 80 | .428 | 80 | .428 | 21.6 | 4.6 | 4.13 | 4.03 |
| Drew Gagnon | LAA | sp | 29 | .716 | 113 | .248 | 78 | .459 | 80 | .471 | 20.0 | 4.4 | 3.95 | 3.73 |
| Giovanny Gallegos | SF | mr | 27 | .661 | 341 | .276 | 243 | .419 | 247 | .426 | 57.3 | 3.7 | 3.31 | 3.41 |
| Zac Gallen | Cin | sp | 23 | .883 | 168 | .304 | 140 | .565 | 144 | .581 | 39.6 | 6.2 | 5.53 | 5.07 |
| John Gant | Hou | sp | 26 | .678 | 539 | .273 | 346 | .424 | 352 | .431 | 85.3 | 3.9 | 3.59 | 3.56 |
| Edgar Garcia | Phi | mr | 22 | .821 | 3 | .333 | 3 | .429 | 4 | .571 | 1.0 | 9.2 | 8.24 | 13.82 |
| Jarlin Garcia* | Cle | mr | 26 | 1.092 | 40 | .275 | 42 | .737 | 42 | .737 | 13.8 | 10.4 | 9.34 | 9.12 |
| Yimi Garcia | SD | mr | 28 | .644 | 170 | .265 | 105 | .386 | 113 | .415 | 25.7 | 3.5 | 3.16 | 3.02 |
| Amir Garrett* | Tex | mr | 27 | .834 | 176 | .364 | 158 | .520 | 162 | .533 | 47.8 | 6.4 | 5.98 | 5.35 |
| Kevin Gausman | | sp | 28 | .727 | 488 | .299 | 313 | .442 | 321 | .453 | 83.7 | 4.5 | 4.03 | 3.76 |
| Cory Gearrin | Atl | mr | 33 | .727 | 110 | .318 | 72 | .436 | 75 | .455 | 19.3 | 4.7 | 4.24 | 4.35 |
| Domingo German | | sp | 26 | .830 | 165 | .315 | 140 | .519 | 144 | .533 | 37.0 | 5.3 | 4.75 | 5.25 |
| Ian Gibaut | ChN | mr | 25 | .708 | 10 | .400 | 8 | .421 | 8 | .421 | 2.2 | 4.6 | 4.16 | 3.10 |
| Kyle Gibson | Bos | sp | 31 | .640 | 568 | .245 | 350 | .407 | 356 | .413 | 76.6 | 3.2 | 2.90 | 2.93 |
| Ken Giles | Sea | cl | 28 | .637 | 226 | .341 | 146 | .387 | 147 | .390 | 35.0 | 3.4 | 3.14 | 2.89 |
| Kevin Ginkel | KC | mr | 25 | .615 | 195 | .241 | 121 | .390 | 124 | .400 | 25.7 | 3.0 | 2.71 | 2.81 |
| Lucas Giolito | Hou | sp | 24 | .638 | 80 | .250 | 49 | .398 | 50 | .407 | 11.7 | 3.5 | 3.19 | 3.48 |
| Mychal Givens | | mr | 29 | .700 | 125 | .304 | 90 | .427 | 93 | .441 | 21.1 | 3.7 | 3.35 | 3.60 |
| Tyler Glasnow | Oak | sp | 25 | .629 | 147 | .272 | 104 | .397 | 108 | .412 | 24.1 | 3.4 | 3.08 | 3.07 |
| Zack Godley | NYN | sp | 29 | .651 | 449 | .276 | 286 | .406 | 290 | .412 | 64.7 | 3.4 | 3.09 | 3.27 |
| Luiz Gohara* | Sea | sp | 22 | .934 | 88 | .341 | 87 | .592 | 88 | .599 | 27.3 | 7.9 | 7.13 | 7.82 |
| Austin Gomber* | StL | sp | 25 | .766 | 34 | .265 | 28 | .475 | 29 | .492 | 8.2 | 5.9 | 5.27 | 5.20 |
| Stephen Gonsalves* | KC | sp | 24 | .536 | 85 | .212 | 45 | .341 | 47 | .356 | 9.3 | 2.5 | 2.33 | 1.84 |
| Tony Gonsolin | Min | sp | 25 | .990 | 114 | .377 | 116 | .624 | 117 | .629 | 40.7 | 9.9 | 8.83 | 8.53 |
| Marco Gonzales* | StL | sp | 27 | .683 | 524 | .300 | 307 | .418 | 311 | .423 | 71.3 | 3.5 | 3.16 | 3.01 |
| Chi Chi Gonzalez | ChN | sp | 27 | .660 | 562 | .276 | 296 | .393 | 305 | .405 | 70.9 | 3.5 | 3.21 | 3.36 |
| Gio Gonzalez* | | sp | 33 | .707 | 315 | .270 | 231 | .455 | 233 | .459 | 55.4 | 4.1 | 3.70 | 3.73 |
| Nick Goody | | mr | 27 | .890 | 91 | .308 | 101 | .601 | 101 | .601 | 28.4 | 6.5 | 5.84 | 5.46 |
| Trevor Gott | Atl | mr | 26 | .551 | 168 | .244 | 88 | .338 | 89 | .342 | 18.6 | 2.6 | 2.39 | 2.36 |
| Matt Grace* | LAA | mr | 30 | .627 | 200 | .245 | 95 | .370 | 99 | .385 | 23.6 | 3.4 | 3.04 | 2.91 |
| Jon Gray | Phi | sp | 27 | .673 | 479 | .282 | 284 | .410 | 287 | .415 | 69.8 | 3.7 | 3.36 | 3.12 |
| Sonny Gray | SF | sp | 29 | .740 | 575 | .287 | 409 | .460 | 419 | .471 | 108.4 | 4.8 | 4.32 | 4.22 |
| Chad Green | ChN | mr | 28 | .553 | 178 | .225 | 103 | .350 | 106 | .361 | 20.4 | 2.4 | 2.24 | 2.11 |
| Shane Greene | Bal | cl | 30 | .766 | 40 | .250 | 30 | .492 | 31 | .508 | 8.4 | 5.4 | 4.77 | 4.37 |
| Luke Gregerson | Phi | mr | 35 | .494 | 46 | .261 | 23 | .307 | 23 | .307 | 3.8 | 1.7 | 1.53 | 1.44 |
| Zack Greinke | | sp | 35 | .614 | 571 | .229 | 342 | .397 | 345 | .400 | 72.5 | 3.0 | 2.67 | 2.48 |
| Robert Gsellman | Min | cl | 25 | .949 | 31 | .452 | 20 | .500 | 21 | .525 | 7.9 | 8.5 | 8.00 | 6.98 |
| Junior Guerra | Tam | sp | 34 | .695 | 241 | .274 | 155 | .434 | 159 | .445 | 40.8 | 4.4 | 4.03 | 3.63 |
| Tayron Guerrero | NYA | mr | 28 | .791 | 58 | .310 | 55 | .514 | 55 | .514 | 13.2 | 4.7 | 4.29 | 5.13 |
| Vladimir Gutierrez | Cin | sp | 23 | .652 | 93 | .312 | 53 | .379 | 55 | .393 | 15.8 | 4.5 | 4.09 | 3.37 |
| Jorge Guzman | NYA | sp | 23 | .988 | 17 | .294 | 16 | .615 | 16 | .615 | 6.1 | 11.7 | 9.81 | 9.83 |
| Josh Hader* | Oak | mr | 25 | .553 | 144 | .326 | 140 | .365 | 143 | .372 | 27.1 | 2.6 | 2.29 | 2.24 |
| Matt Hall* | ChN | mr | 25 | .945 | 41 | .390 | 39 | .582 | 40 | .597 | 13.3 | 8.5 | 7.69 | 8.00 |
| Cole Hamels* | | sp | 35 | .683 | 495 | .281 | 337 | .427 | 343 | .434 | 80.4 | 3.8 | 3.43 | 3.58 |
| Ian Hamilton | Tam | mr | 24 | 1.098 | 47 | .404 | 52 | .675 | 54 | .701 | 18.1 | 10.4 | 9.33 | 10.62 |
| Brad Hand* | SD | cl | 29 | .700 | 197 | .335 | 142 | .429 | 145 | .438 | 34.8 | 3.9 | 3.45 | 3.53 |
| Alec Hansen | KC | sp | 24 | .955 | 7 | .571 | 6 | .545 | 6 | .545 | 2.4 | 10.8 | 9.68 | 9.72 |
| J.A. Happ* | ChN | sp | 36 | .673 | 548 | .288 | 354 | .423 | 356 | .425 | 87.1 | 3.8 | 3.52 | 3.02 |
| Blaine Hardy* | Mil | mr | 32 | .608 | 558 | .260 | 300 | .374 | 304 | .379 | 70.1 | 3.2 | 2.85 | 2.47 |
| Ryne Harper | ChN | mr | 30 | .687 | 196 | .265 | 129 | .426 | 132 | .436 | 32.2 | 4.0 | 3.62 | 3.52 |
| Will Harris | Pit | mr | 34 | .645 | 243 | .313 | 132 | .382 | 133 | .384 | 32.4 | 3.4 | 3.10 | 2.96 |
| Donnie Hart* | Mil | mr | 28 | .706 | 260 | .296 | 151 | .428 | 153 | .433 | 41.2 | 4.6 | 4.23 | 4.26 |
| Hunter Harvey | | sp | 24 | .846 | 53 | .396 | 37 | .507 | 37 | .507 | 13.5 | 8.1 | 8.19 | 7.30 |
| Matt Harvey | Pit | sp | 30 | .803 | 226 | .336 | 138 | .468 | 142 | .481 | 42.7 | 5.8 | 5.29 | 4.89 |
| Andrew Heaney* | Phi | sp | 28 | .723 | 334 | .326 | 219 | .433 | 226 | .447 | 60.3 | 4.6 | 4.19 | 4.02 |
| Ben Heller | LAA | mr | 27 | .195 | 16 | .063 | 3 | .143 | 3 | .143 | 0.2 | 0.3 | 0.28 | 0.17 |
| Heath Hembree | SD | mr | 30 | .684 | 149 | .302 | 110 | .438 | 110 | .438 | 27.8 | 4.1 | 3.74 | 3.11 |
| Kyle Hendricks | | sp | 29 | .619 | 543 | .236 | 300 | .390 | 304 | .395 | 67.3 | 3.1 | 2.85 | 2.57 |
| Liam Hendriks | ChN | mr | 30 | .587 | 458 | .284 | 272 | .363 | 277 | .369 | 62.8 | 3.0 | 2.74 | 2.35 |
| Jimmy Herget | Col | mr | 25 | .667 | 95 | .316 | 61 | .396 | 63 | .409 | 15.4 | 3.8 | 3.50 | 3.45 |
| Darwinzon Hernandez* | Tor | sp | 22 | .729 | 27 | .148 | 24 | .511 | 24 | .511 | 6.1 | 5.1 | 4.63 | 4.73 |
| David Hernandez | Mil | mr | 34 | .692 | 247 | .328 | 144 | .396 | 151 | .415 | 38.8 | 4.2 | 3.80 | 4.28 |
| Elieser Hernandez | | mr | 24 | .883 | 95 | .274 | 70 | .551 | 72 | .567 | 21.0 | 6.8 | 6.24 | 6.97 |
| Felix Hernandez | Tor | sp | 33 | .456 | 84 | .226 | 30 | .263 | 31 | .272 | 5.2 | 1.5 | 1.40 | 1.28 |
| Jonathan Hernandez | Tor | sp | 22 | .772 | 16 | .375 | 16 | .500 | 16 | .500 | 4.1 | 5.0 | 4.50 | 4.71 |
| Kelvin Herrera | NYN | cl | 29 | .742 | 232 | .267 | 173 | .466 | 180 | .485 | 44.0 | 4.5 | 4.02 | 4.03 |
| Jordan Hicks | Min | mr | 22 | .567 | 117 | .248 | 66 | .351 | 69 | .367 | 14.6 | 2.9 | 2.64 | 2.49 |
| Rich Hill* | Pit | sp | 39 | .546 | 170 | .224 | 99 | .344 | 103 | .358 | 19.5 | 2.3 | 2.10 | 1.86 |
| Yoshihisa Hirano | LAN | mr | 35 | .738 | 192 | .318 | 132 | .439 | 139 | .462 | 36.2 | 4.6 | 4.13 | 4.37 |
| Jeff Hoffman | Sea | sp | 26 | .726 | 526 | .295 | 354 | .449 | 359 | .456 | 92.8 | 4.6 | 4.17 | 4.27 |
| Jonathan Holder | | mr | 26 | .674 | 184 | .315 | 104 | .392 | 108 | .408 | 28.1 | 4.1 | 3.70 | 3.59 |
| Greg Holland | ChA | cl | 33 | .565 | 44 | .250 | 26 | .361 | 26 | .361 | 4.9 | 2.4 | 2.23 | 3.02 |
| Grant Holmes | Cle | sp | 23 | .730 | 81 | .321 | 54 | .435 | 56 | .452 | 14.6 | 4.6 | 4.18 | 4.35 |
| J.J. Hoover | Bal | mr | 31 | .798 | 126 | .302 | 104 | .510 | 105 | .515 | 29.0 | 5.8 | 5.15 | 5.30 |
| Adrian Houser | Tex | sp | 26 | .991 | 121 | .355 | 111 | .617 | 113 | .628 | 36.3 | 8.4 | 7.47 | 7.19 |
| Brian Howard | | sp | 24 | .927 | 277 | .332 | 222 | .558 | 231 | .580 | 76.4 | 8.3 | 7.42 | 7.49 |
| James Hoyt | | mr | 32 | .804 | 98 | .367 | 81 | .497 | 82 | .503 | 21.8 | 5.1 | 4.57 | 5.08 |
| Dakota Hudson | | sp | 24 | .701 | 433 | .291 | 261 | .429 | 262 | .430 | 64.3 | 4.0 | 3.65 | 4.03 |
| Jared Hughes | Bos | mr | 33 | .635 | 197 | .239 | 110 | .400 | 113 | .411 | 23.7 | 3.1 | 2.78 | 2.44 |
| Danny Hultzen* | Tex | sp | 29 | 1.442 | 27 | .519 | 37 | .925 | 37 | .925 | 17.9 | 25.4 | 21.71 | 19.68 |
| Tommy Hunter | Phi | mr | 32 | .444 | 22 | .227 | 7 | .259 | 7 | .259 | 1.4 | 1.7 | 1.61 | 1.00 |
| Raisel Iglesias | Col | cl | 29 | .676 | 218 | .307 | 155 | .411 | 161 | .427 | 39.5 | 4.0 | 3.63 | 3.53 |
| Cole Irvin* | | sp | 25 | .679 | 195 | .272 | 103 | .412 | 104 | .416 | 26.4 | 4.0 | 3.67 | 3.42 |
| Luke Jackson | KC | mr | 27 | .577 | 204 | .260 | 117 | .361 | 119 | .367 | 24.2 | 2.7 | 2.47 | 2.49 |
| Josh James | ChN | sp | 26 | .714 | 7 | .286 | 7 | .500 | 7 | .500 | 1.5 | 3.7 | 3.64 | 2.79 |
| Kenley Jansen | | cl | 31 | .510 | 156 | .231 | 86 | .326 | 87 | .330 | 15.9 | 2.0 | 1.87 | 1.53 |
| Jeremy Jeffress | | cl | 31 | .685 | 123 | .325 | 85 | .425 | 85 | .425 | 18.4 | 3.3 | 2.98 | 3.43 |
| Dan Jennings* | | mr | 32 | .491 | 50 | .260 | 18 | .265 | 19 | .279 | 3.2 | 1.6 | 1.42 | 1.69 |
| Joe Jimenez | KC | mr | 24 | .535 | 171 | .263 | 97 | .337 | 98 | .340 | 19.7 | 2.4 | 2.20 | 1.88 |
| Brian Johnson* | Mil | sp | 28 | 1.112 | 15 | .400 | 14 | .667 | 14 | .667 | 5.8 | 15.6 | 15.61 | 19.09 |
| D.J. Johnson | ChA | mr | 29 | .694 | 78 | .231 | 63 | .470 | 63 | .470 | 13.7 | 3.7 | 3.40 | 3.38 |
| Tyler B. Johnson | ChA | mr | 23 | .597 | 42 | .310 | 26 | .366 | 26 | .366 | 5.2 | 2.6 | 2.40 | 2.75 |
| Jake Junis | LAN | sp | 26 | .710 | 627 | .300 | 377 | .424 | 392 | .441 | 98.9 | 4.1 | 3.79 | 3.59 |
| Tommy Kahnle | LAA | mr | 29 | .592 | 150 | .273 | 104 | .375 | 106 | .383 | 20.4 | 2.6 | 2.40 | 2.79 |
| Rob Kaminsky* | Bal | mr | 24 | .756 | 30 | .433 | 24 | .444 | 24 | .444 | 7.6 | 6.2 | 5.40 | 5.77 |
| James Karinchak | Tex | mr | 23 | .732 | 117 | .291 | 101 | .470 | 103 | .479 | 25.9 | 4.8 | 4.37 | 4.60 |
| Anthony Kay* | | sp | 24 | .818 | 226 | .341 | 171 | .500 | 175 | .512 | 51.7 | 6.2 | 5.71 | 5.47 |
| Keone Kela | | cl | 26 | .508 | 114 | .246 | 67 | .330 | 67 | .330 | 11.4 | 1.9 | 1.71 | 1.56 |
| Brad Keller | ChA | sp | 23 | .719 | 601 | .276 | 353 | .442 | 359 | .449 | 88.2 | 4.1 | 3.74 | 3.88 |
| Brian Keller | Tex | sp | 25 | .984 | 17 | .294 | 15 | .652 | 15 | .652 | 4.3 | 7.3 | 7.03 | 7.74 |
| Kyle Keller | NYN | mr | 26 | .755 | 206 | .316 | 164 | .465 | 171 | .484 | 43.1 | 4.7 | 4.35 | 4.42 |
| Mitch Keller | NYN | sp | 23 | .802 | 16 | .375 | 11 | .478 | 11 | .478 | 3.1 | 5.3 | 5.06 | 6.22 |
| Shawn Kelley | Pit | mr | 35 | .637 | 112 | .295 | 67 | .399 | 67 | .399 | 15.7 | 3.3 | 2.94 | 2.18 |
| Joe Kelly | Mil | mr | 31 | .634 | 183 | .333 | 117 | .379 | 120 | .388 | 29.0 | 3.6 | 3.25 | 3.47 |
| Merrill Kelly | Bos | sp | 30 | .710 | 197 | .320 | 124 | .432 | 126 | .439 | 33.2 | 4.4 | 4.00 | 3.71 |
| Ian Kennedy | | sp | 34 | .824 | 408 | .289 | 322 | .527 | 327 | .535 | 89.1 | 5.6 | 5.09 | 5.00 |
| Clayton Kershaw* | NYA | sp | 31 | .625 | 448 | .297 | 270 | .383 | 275 | .390 | 63.7 | 3.3 | 2.97 | 2.70 |
| Dallas Keuchel* | ChN | sp | 31 | .672 | 404 | .275 | 248 | .425 | 250 | .428 | 57.6 | 3.6 | 3.34 | 3.13 |
| Yusei Kikuchi* | ChA | sp | 28 | .710 | 512 | .281 | 352 | .445 | 360 | .455 | 87.5 | 4.1 | 3.79 | 3.73 |
| Craig Kimbrel | Tor | cl | 31 | .842 | 60 | .350 | 79 | .556 | 80 | .563 | 22.8 | 6.5 | 5.82 | 5.74 |
| Michael King | Tex | sp | 24 | .621 | 199 | .221 | 110 | .393 | 114 | .407 | 23.4 | 2.9 | 2.64 | 2.37 |
| Nick Kingham | Hou | sp | 27 | .817 | 395 | .304 | 286 | .514 | 289 | .520 | 79.6 | 5.5 | 4.92 | 4.85 |
| Brandon Kintzler | Col | mr | 34 | .779 | 111 | .324 | 70 | .461 | 73 | .480 | 18.6 | 4.7 | 4.27 | 4.61 |
| Andrew Kittredge | | mr | 29 | .793 | 35 | .314 | 23 | .489 | 23 | .489 | 5.8 | 4.4 | 4.12 | 3.45 |
| Corey Kluber | SF | sp | 33 | .663 | 233 | .309 | 151 | .403 | 155 | .413 | 37.1 | 3.5 | 3.18 | 2.90 |
| Adam Kolarek* | Det | mr | 30 | .757 | 70 | .386 | 50 | .446 | 51 | .455 | 12.0 | 4.2 | 3.75 | 5.24 |
| Michael Kopech | SF | sp | 23 | .564 | 35 | .257 | 19 | .345 | 20 | .364 | 4.0 | 2.7 | 2.42 | 2.47 |
| Dean Kremer | Cin | sp | 23 | .845 | 75 | .320 | 68 | .544 | 68 | .544 | 20.1 | 6.5 | 5.96 | 5.38 |
| Brady Lail | Hou | mr | 25 | .817 | 255 | .322 | 184 | .504 | 186 | .510 | 55.3 | 6.3 | 5.71 | 5.84 |
| Peter Lambert | ChA | sp | 22 | .577 | 161 | .236 | 72 | .346 | 73 | .351 | 14.5 | 2.4 | 2.18 | 2.24 |
| Dinelson Lamet | KC | sp | 26 | .575 | 204 | .260 | 120 | .359 | 123 | .368 | 25.0 | 2.7 | 2.45 | 2.57 |
| Eric Lauer* | | sp | 24 | .781 | 406 | .310 | 316 | .483 | 327 | .500 | 89.3 | 5.4 | 4.84 | 4.96 |
| Derek Law | Cin | mr | 28 | .782 | 161 | .317 | 113 | .475 | 116 | .487 | 31.8 | 5.3 | 4.88 | 5.43 |
| Tommy Layne* | NYA | mr | 34 | .720 | 50 | .340 | 32 | .410 | 35 | .449 | 9.4 | 5.0 | 4.39 | 4.40 |
| Mike Leake | Cin | sp | 31 | .727 | 594 | .313 | 331 | .435 | 334 | .439 | 89.2 | 4.4 | 3.96 | 3.62 |
| Wade LeBlanc* | Pit | sp | 34 | .806 | 175 | .280 | 124 | .496 | 127 | .508 | 35.5 | 5.5 | 4.99 | 4.74 |
| Jose Leclerc | LAA | mr | 25 | .453 | 157 | .242 | 78 | .278 | 82 | .292 | 13.1 | 1.6 | 1.51 | 1.44 |
| Luke Leftwich | Det | mr | 25 | .485 | 212 | .241 | 90 | .293 | 91 | .296 | 16.8 | 1.9 | 1.69 | 1.51 |
| Dominic Leone | Tam | mr | 27 | .678 | 213 | .277 | 148 | .433 | 149 | .436 | 34.7 | 3.7 | 3.41 | 3.33 |
| Jon Lester* | | sp | 35 | .732 | 497 | .286 | 337 | .460 | 344 | .469 | 86.4 | 4.4 | 3.94 | 3.81 |
| Zack Littell | Tam | sp | 23 | .703 | 123 | .268 | 78 | .424 | 83 | .451 | 20.2 | 4.2 | 3.86 | 4.05 |
| Ben Lively | Was | sp | 27 | .782 | 380 | .318 | 252 | .464 | 261 | .481 | 74.3 | 5.5 | 4.95 | 5.01 |
| Jonathan Loaisiga | Ari | sp | 24 | .730 | 232 | .302 | 158 | .455 | 159 | .458 | 42.4 | 4.6 | 4.16 | 3.77 |
| Jorge Lopez | SD | mr | 26 | .203 | 19 | .105 | 3 | .120 | 3 | .120 | 0.3 | 0.3 | 0.31 | 0.32 |
| Pablo Lopez | Tex | sp | 23 | .695 | 298 | .289 | 176 | .417 | 184 | .436 | 47.7 | 4.3 | 3.92 | 3.63 |
| Reynaldo Lopez | Bos | sp | 25 | .691 | 118 | .246 | 79 | .446 | 80 | .452 | 19.5 | 4.2 | 3.73 | 3.53 |
| Yoan Lopez | | mr | 26 | .775 | 227 | .326 | 181 | .474 | 188 | .492 | 52.0 | 5.4 | 4.98 | 4.91 |
| Michael Lorenzen | Cin | mr | 27 | .709 | 280 | .314 | 171 | .425 | 176 | .438 | 44.3 | 4.3 | 3.93 | 3.96 |
| Aaron Loup* | Cin | mr | 31 | .588 | 11 | .364 | 7 | .333 | 8 | .381 | 1.7 | 2.9 | 2.63 | 1.52 |
| Richard Lovelady* | Cle | mr | 23 | .711 | 323 | .328 | 195 | .420 | 199 | .429 | 49.0 | 4.0 | 3.58 | 3.89 |
| Joey Lucchesi* | Ari | sp | 26 | .754 | 461 | .299 | 361 | .480 | 366 | .487 | 91.1 | 4.6 | 4.15 | 4.04 |
| Seth Lugo | NYN | mr | 29 | .840 | 542 | .334 | 421 | .518 | 431 | .530 | 126.0 | 6.1 | 5.60 | 5.28 |
| Jesus Luzardo* | | sp | 21 | .654 | 137 | .270 | 81 | .403 | 81 | .403 | 17.9 | 3.3 | 2.97 | 3.39 |
| Jordan Lyles | Phi | mr | 28 | .663 | 302 | .255 | 192 | .423 | 194 | .427 | 43.0 | 3.5 | 3.23 | 3.37 |
| Lance Lynn | | sp | 32 | .674 | 114 | .298 | 74 | .416 | 74 | .416 | 18.2 | 3.8 | 3.37 | 3.27 |
| Kenta Maeda | Min | sp | 31 | .622 | 515 | .245 | 304 | .394 | 309 | .400 | 68.7 | 3.2 | 2.89 | 2.51 |
| Tyler Mahle | Ari | sp | 24 | .826 | 69 | .261 | 62 | .530 | 64 | .547 | 16.8 | 5.6 | 5.18 | 5.34 |
| Kazuhisa Makita | NYA | mr | 34 | .585 | 202 | .243 | 99 | .360 | 100 | .364 | 19.5 | 2.5 | 2.28 | 2.48 |
| German Marquez | Bos | sp | 24 | .707 | 501 | .265 | 357 | .453 | 366 | .464 | 86.9 | 4.1 | 3.70 | 3.37 |
| Evan Marshall | | mr | 29 | .562 | 123 | .220 | 56 | .339 | 58 | .352 | 11.6 | 2.4 | 2.19 | 2.15 |
| Brett Martin* | Atl | sp | 24 | .609 | 543 | .282 | 279 | .363 | 284 | .369 | 65.2 | 3.1 | 2.79 | 2.67 |
| Chris Martin | | mr | 33 | .669 | 151 | .305 | 82 | .398 | 83 | .403 | 22.1 | 4.1 | 3.70 | 3.33 |
| Cody Martin | SD | sp | 29 | .616 | 12 | .333 | 7 | .333 | 8 | .381 | 2.0 | 3.9 | 3.52 | 4.37 |
| Corbin Martin | StL | sp | 23 | .572 | 45 | .200 | 27 | .360 | 29 | .387 | 5.5 | 2.6 | 2.37 | 2.51 |
| Carlos Martinez | Sea | sp | 27 | .648 | 285 | .267 | 179 | .395 | 188 | .415 | 40.3 | 3.3 | 2.98 | 3.28 |
| Bryan Mata | Oak | sp | 20 | .772 | 119 | .269 | 95 | .505 | 95 | .505 | 24.7 | 5.8 | 5.18 | 5.96 |
| Phil Maton | ChN | mr | 26 | .674 | 175 | .291 | 115 | .417 | 117 | .424 | 29.3 | 4.0 | 3.61 | 3.35 |
| Steven Matz* | Mia | sp | 28 | .682 | 203 | .281 | 146 | .427 | 150 | .439 | 36.6 | 4.0 | 3.72 | 3.58 |
| Dustin May | Bos | sp | 21 | .728 | 17 | .294 | 11 | .440 | 11 | .440 | 2.4 | 3.3 | 2.93 | 2.40 |
| Trevor May | Sea | mr | 29 | .766 | 241 | .299 | 199 | .483 | 204 | .495 | 56.2 | 5.7 | 5.23 | 5.40 |
| Mike Mayers | StL | mr | 27 | 1.000 | 2 | .500 | 1 | .500 | 1 | .500 | 0.5 | 13.5 | 12.15 | 14.52 |
| Tim Mayza* | Atl | mr | 27 | .610 | 123 | .293 | 77 | .381 | 78 | .386 | 17.3 | 3.1 | 2.81 | 2.53 |
| Brendan McCurry | ChN | mr | 27 | .857 | 126 | .333 | 104 | .542 | 104 | .542 | 27.6 | 5.4 | 4.90 | 4.98 |
| Jake McGee* | Tor | mr | 32 | .841 | 38 | .342 | 31 | .554 | 31 | .554 | 9.3 | 6.6 | 5.92 | 3.95 |
| Collin McHugh | | sp | 32 | .763 | 402 | .338 | 287 | .457 | 296 | .471 | 82.1 | 5.1 | 4.59 | 4.44 |
| John Means* | | sp | 26 | .876 | 272 | .342 | 194 | .534 | 199 | .548 | 60.2 | 6.6 | 6.00 | 5.73 |
| Adonis Medina | | sp | 22 | .755 | 113 | .319 | 78 | .459 | 80 | .471 | 22.2 | 5.4 | 4.91 | 5.15 |
| Adalberto Mejia* | | sp | 26 | .787 | 77 | .247 | 55 | .487 | 58 | .513 | 13.8 | 4.6 | 4.25 | 4.75 |
| Mark Melancon | | cl | 34 | .760 | 203 | .350 | 136 | .453 | 138 | .460 | 40.8 | 5.4 | 4.83 | 4.81 |
| Keury Mella | Sea | sp | 25 | .786 | 506 | .281 | 361 | .490 | 368 | .499 | 98.5 | 5.3 | 4.78 | 4.95 |
| Conner Menez* | LAA | sp | 24 | .933 | 57 | .404 | 65 | .586 | 66 | .595 | 20.9 | 8.0 | 6.96 | 7.57 |
| Daniel Mengden | Col | sp | 26 | .914 | 101 | .327 | 79 | .556 | 81 | .570 | 25.0 | 7.3 | 6.90 | 7.21 |
| Ryan Merritt* | Atl | sp | 27 | .715 | 612 | .296 | 346 | .429 | 355 | .440 | 91.9 | 4.2 | 3.85 | 3.50 |
| Keynan Middleton | Bal | mr | 25 | .728 | 199 | .256 | 158 | .465 | 163 | .479 | 37.1 | 4.0 | 3.67 | 3.84 |
| Miles Mikolas | Col | sp | 30 | .716 | 682 | .282 | 417 | .439 | 430 | .453 | 105.7 | 4.1 | 3.74 | 3.37 |
| Wade Miley* | SD | sp | 32 | .667 | 131 | .313 | 79 | .401 | 81 | .411 | 19.2 | 3.6 | 3.32 | 3.29 |
| Andrew Miller* | Pit | mr | 34 | .509 | 184 | .250 | 101 | .306 | 109 | .330 | 19.8 | 2.1 | 1.92 | 1.84 |
| Justin Miller | Det | mr | 32 | .674 | 103 | .350 | 65 | .404 | 65 | .404 | 16.5 | 3.8 | 3.34 | 2.92 |
| Shelby Miller | Atl | sp | 28 | .759 | 170 | .294 | 118 | .482 | 119 | .486 | 30.6 | 4.7 | 4.29 | 4.10 |
| Alec Mills | Cin | sp | 27 | .820 | 218 | .312 | 170 | .509 | 173 | .518 | 49.7 | 5.9 | 5.42 | 5.18 |
| Juan Minaya | Atl | mr | 28 | .630 | 205 | .298 | 134 | .386 | 139 | .401 | 31.6 | 3.4 | 3.11 | 3.04 |
| Mike Minor* | ChN | sp | 31 | .743 | 467 | .285 | 327 | .468 | 333 | .476 | 82.0 | 4.3 | 3.98 | 3.80 |
| A.J. Minter* | Phi | cl | 25 | .805 | 146 | .356 | 125 | .502 | 127 | .510 | 36.9 | 6.0 | 5.51 | 5.36 |
| Rafael Montero | NYA | sp | 28 | 1.375 | 17 | .471 | 23 | .885 | 23 | .885 | 11.0 | 22.9 | 20.60 | 20.97 |
| Jordan Montgomery* | Cle | sp | 26 | .747 | 45 | .289 | 27 | .466 | 27 | .466 | 6.9 | 4.4 | 3.93 | 3.98 |
| Mike Montgomery* | Sea | mr | 29 | .783 | 131 | .267 | 100 | .508 | 100 | .508 | 25.6 | 4.9 | 4.54 | 4.64 |
| Brian Moran* | Tor | mr | 30 | .867 | 71 | .338 | 62 | .544 | 62 | .544 | 18.0 | 6.4 | 5.54 | 5.81 |
| Adam Morgan* | Phi | mr | 29 | .873 | 25 | .240 | 23 | .605 | 23 | .605 | 5.7 | 5.5 | 4.91 | 4.60 |
| Reyes Moronta | NYA | mr | 26 | .733 | 142 | .338 | 109 | .454 | 109 | .454 | 29.8 | 4.9 | 4.50 | 4.71 |
| Charlie Morton | | sp | 35 | .722 | 465 | .320 | 328 | .439 | 340 | .455 | 82.0 | 4.1 | 3.70 | 3.83 |
| Gabriel Moya* | KC | mr | 24 | .791 | 213 | .347 | 162 | .495 | 163 | .498 | 47.0 | 5.8 | 5.22 | 4.72 |
| Kyle Muller* | StL | sp | 21 | .780 | 238 | .290 | 173 | .487 | 175 | .493 | 49.8 | 5.6 | 5.08 | 5.01 |
| Andres Munoz | Tex | mr | 20 | .888 | 151 | .291 | 181 | .580 | 182 | .583 | 52.1 | 7.4 | 6.63 | 7.74 |
| Patrick Murphy | | sp | 24 | .809 | 18 | .389 | 10 | .455 | 10 | .455 | 3.5 | 7.2 | 6.52 | 7.03 |
| Joe Musgrove | ChA | sp | 26 | .651 | 597 | .251 | 352 | .407 | 362 | .418 | 83.1 | 3.4 | 3.19 | 2.82 |
| Carlos Navas | Atl | mr | 26 | .690 | 285 | .274 | 172 | .414 | 180 | .434 | 45.3 | 4.2 | 3.82 | 3.78 |
| Nick Neidert | | sp | 22 | .817 | 528 | .335 | 370 | .505 | 375 | .512 | 105.6 | 5.5 | 5.03 | 4.73 |
| Jimmy Nelson | SD | sp | 30 | .812 | 12 | .417 | 12 | .522 | 12 | .522 | 3.5 | 6.3 | 5.68 | 4.95 |
| Nick Nelson | Was | sp | 23 | .934 | 101 | .376 | 83 | .565 | 84 | .571 | 26.8 | 7.7 | 6.99 | 8.06 |
| Hector Neris | Phi | cl | 30 | .576 | 156 | .269 | 111 | .370 | 113 | .377 | 21.6 | 2.5 | 2.31 | 2.33 |
| Pat Neshek | Phi | mr | 38 | .527 | 77 | .221 | 33 | .320 | 33 | .320 | 7.1 | 2.4 | 2.12 | 1.65 |
| Sean Newcomb* | Oak | sp | 26 | .718 | 485 | .305 | 360 | .457 | 361 | .458 | 93.1 | 4.6 | 4.09 | 3.87 |
| Juan Nicasio | NYA | mr | 32 | .749 | 173 | .312 | 148 | .485 | 149 | .489 | 36.0 | 4.3 | 3.92 | 3.92 |
| Stephen Nogosek | Oak | mr | 24 | .606 | 7 | .429 | 4 | .333 | 4 | .333 | 1.3 | 4.3 | 3.83 | 3.84 |
| Aaron Nola | Phi | sp | 26 | .626 | 555 | .305 | 328 | .374 | 337 | .384 | 75.9 | 3.1 | 2.82 | 2.85 |
| Bud Norris | NYN | cl | 34 | .613 | 140 | .243 | 89 | .380 | 94 | .402 | 21.3 | 3.4 | 3.06 | 2.83 |
| Daniel Norris* | Mia | sp | 26 | .908 | 17 | .412 | 12 | .522 | 12 | .522 | 4.4 | 8.6 | 7.70 | 7.40 |
| Ivan Nova | Mil | sp | 32 | .746 | 548 | .301 | 364 | .460 | 372 | .470 | 98.3 | 4.7 | 4.28 | 4.00 |
| Darren O'Day | Bos | mr | 36 | .590 | 29 | .379 | 12 | .308 | 12 | .308 | 2.9 | 2.6 | 2.26 | 2.46 |
| Trevor Oaks | Bal | sp | 26 | .643 | 124 | .242 | 61 | .386 | 64 | .405 | 13.1 | 2.9 | 2.65 | 2.81 |
| Scott Oberg | ChA | mr | 29 | .562 | 158 | .266 | 81 | .343 | 82 | .347 | 16.3 | 2.4 | 2.21 | 2.25 |
| Jake Odorizzi | SD | sp | 29 | .653 | 506 | .279 | 305 | .408 | 307 | .410 | 71.9 | 3.5 | 3.14 | 2.87 |
| Seung-hwan Oh | Pit | mr | 36 | .786 | 114 | .289 | 83 | .503 | 83 | .503 | 22.9 | 5.3 | 4.67 | 4.49 |
| Tyler Olson* | Cin | mr | 29 | .831 | 83 | .373 | 65 | .504 | 66 | .512 | 19.8 | 6.1 | 5.39 | 5.72 |
| Luis Ortiz | NYN | sp | 23 | .918 | 72 | .375 | 57 | .570 | 57 | .570 | 18.9 | 7.9 | 7.31 | 7.01 |
| Roberto Osuna | Mia | cl | 24 | .565 | 170 | .282 | 92 | .347 | 92 | .347 | 18.7 | 2.4 | 2.19 | 1.86 |
| Dan Otero | LAA | mr | 34 | .661 | 202 | .287 | 102 | .386 | 106 | .402 | 23.1 | 3.0 | 2.82 | 2.84 |
| Travis Ott* | NYN | mr | 24 | .644 | 298 | .305 | 190 | .395 | 193 | .401 | 47.5 | 3.8 | 3.44 | 3.25 |
| Adam Ottavino | | mr | 33 | .636 | 119 | .261 | 94 | .414 | 97 | .427 | 20.5 | 3.4 | 3.12 | 3.16 |
| Chris Paddack | KC | sp | 23 | .708 | 450 | .280 | 314 | .443 | 326 | .460 | 80.2 | 4.2 | 3.85 | 3.65 |
| Emilio Pagan | Cle | mr | 28 | .757 | 120 | .317 | 105 | .486 | 106 | .491 | 26.8 | 4.7 | 4.37 | 4.40 |
| Joe Palumbo* | NYN | sp | 24 | .985 | 93 | .398 | 94 | .614 | 94 | .614 | 32.4 | 9.5 | 8.55 | 9.15 |
| Edward Paredes* | Hou | mr | 32 | .520 | 57 | .263 | 32 | .323 | 32 | .323 | 6.0 | 2.1 | 1.85 | 1.74 |
| Blake Parker | LAA | cl | 34 | .812 | 84 | .274 | 59 | .496 | 62 | .521 | 17.9 | 6.0 | 5.44 | 5.69 |
| David Paulino | | sp | 25 | .583 | 64 | .313 | 35 | .354 | 35 | .354 | 6.5 | 2.2 | 2.01 | 1.97 |
| James Paxton* | Sea | sp | 30 | .590 | 276 | .301 | 163 | .361 | 165 | .366 | 33.8 | 2.6 | 2.40 | 2.41 |
| James Pazos* | | mr | 28 | .553 | 99 | .242 | 50 | .336 | 52 | .349 | 10.6 | 2.5 | 2.29 | 2.04 |
| Brad Peacock | | mr | 31 | .594 | 255 | .310 | 161 | .363 | 165 | .372 | 35.4 | 2.9 | 2.67 | 2.55 |
| Felix Pena | | sp | 29 | .745 | 220 | .264 | 153 | .468 | 157 | .480 | 40.8 | 4.7 | 4.26 | 4.21 |
| Freddy Peralta | Oak | sp | 23 | .723 | 362 | .312 | 323 | .463 | 328 | .470 | 82.4 | 4.6 | 4.20 | 4.32 |
| Luis Perdomo | | sp | 26 | .750 | 123 | .301 | 79 | .459 | 81 | .471 | 22.0 | 4.9 | 4.49 | 4.39 |
| Cionel Perez* | NYN | mr | 23 | .745 | 519 | .295 | 385 | .466 | 390 | .472 | 101.4 | 4.7 | 4.33 | 4.29 |
| Franklin Perez | Sea | sp | 21 | 1.500 | 5 | .600 | 6 | .750 | 6 | .750 | 2.7 | 24.2 | 16.33 | 24.91 |
| Martin Perez* | LAN | sp | 28 | .666 | 572 | .273 | 315 | .403 | 321 | .410 | 73.7 | 3.5 | 3.19 | 3.34 |
| Oliver Perez* | Det | mr | 37 | .675 | 101 | .317 | 69 | .416 | 70 | .422 | 18.3 | 4.3 | 3.98 | 3.75 |
| David Peterson | LAA | mr | 29 | .631 | 143 | .280 | 75 | .389 | 75 | .389 | 16.9 | 3.2 | 2.87 | 2.62 |
| Tim Peterson | Atl | mr | 28 | .000 | 1 | .000 | 0 | .000 | 0 | .000 | 0.0 | 0.0 | 0.00 | 0.00 |
| Yusmeiro Petit | | mr | 34 | .608 | 162 | .278 | 83 | .367 | 83 | .367 | 19.7 | 3.2 | 2.86 | 2.50 |
| Michael Pineda | Pit | sp | 30 | .769 | 328 | .329 | 213 | .465 | 218 | .476 | 61.4 | 5.1 | 4.53 | 4.23 |
| Nick Pivetta | | sp | 26 | .752 | 372 | .333 | 270 | .465 | 273 | .470 | 73.1 | 4.9 | 4.48 | 4.38 |
| Colin Poche* | Col | mr | 25 | .741 | 128 | .336 | 136 | .484 | 138 | .491 | 33.1 | 4.6 | 4.13 | 4.21 |
| Drew Pomeranz* | SD | sp | 30 | .695 | 459 | .301 | 327 | .430 | 333 | .438 | 80.3 | 4.0 | 3.64 | 3.80 |
| Cody Ponce | SD | sp | 25 | 1.000 | 10 | .300 | 9 | .692 | 9 | .692 | 2.9 | 8.8 | 7.91 | 5.82 |
| Daniel Poncedeleon | StL | sp | 27 | .695 | 175 | .280 | 116 | .425 | 120 | .440 | 31.5 | 4.6 | 4.25 | 4.18 |
| Rick Porcello | Bal | sp | 30 | .669 | 569 | .271 | 339 | .414 | 346 | .422 | 81.0 | 3.6 | 3.26 | 3.13 |
| Alex Powers | Cin | mr | 27 | .895 | 44 | .318 | 37 | .569 | 37 | .569 | 11.0 | 6.9 | 6.38 | 7.33 |
| Bobby Poyner* | LAN | mr | 26 | .768 | 177 | .299 | 124 | .471 | 128 | .487 | 34.7 | 5.0 | 4.61 | 4.40 |
| Ryan Pressly | Min | mr | 30 | .613 | 108 | .324 | 66 | .367 | 69 | .383 | 17.1 | 3.7 | 3.38 | 2.84 |
| David Price* | Tor | sp | 33 | .625 | 545 | .275 | 319 | .387 | 324 | .393 | 73.7 | 3.3 | 2.94 | 2.76 |
| Austin Pruitt | Atl | mr | 29 | .810 | 251 | .339 | 162 | .479 | 166 | .491 | 49.4 | 5.7 | 5.29 | 5.20 |
| Cal Quantrill | NYN | sp | 24 | .657 | 81 | .309 | 44 | .386 | 45 | .395 | 10.7 | 3.4 | 3.10 | 3.01 |
| Jose Quijada* | Tor | mr | 23 | .744 | 81 | .395 | 70 | .455 | 71 | .461 | 18.5 | 4.9 | 4.45 | 5.11 |
| Jose Quintana* | Col | sp | 30 | .654 | 545 | .283 | 364 | .413 | 366 | .415 | 82.7 | 3.4 | 3.09 | 2.98 |
| Noe Ramirez | Was | mr | 29 | .686 | 29 | .241 | 20 | .400 | 23 | .460 | 5.2 | 3.9 | 3.41 | 3.45 |
| Edubray Ramos | Tor | mr | 26 | .709 | 222 | .329 | 148 | .435 | 150 | .441 | 36.4 | 3.9 | 3.54 | 3.44 |
| Robbie Ray* | Oak | sp | 27 | .616 | 393 | .290 | 286 | .393 | 291 | .400 | 62.5 | 3.2 | 2.87 | 2.92 |
| Sean Reid-Foley | KC | sp | 23 | .714 | 232 | .272 | 159 | .449 | 162 | .458 | 40.2 | 4.3 | 3.89 | 3.99 |
| Alex Reyes | Tex | sp | 24 | .807 | 141 | .355 | 116 | .492 | 119 | .504 | 33.4 | 5.9 | 5.56 | 6.46 |
| Gerardo Reyes | Tex | mr | 26 | .350 | 8 | .125 | 3 | .250 | 3 | .250 | 0.3 | 0.7 | 0.62 | 1.13 |
| Garrett Richards | Bal | sp | 31 | .696 | 436 | .289 | 311 | .444 | 312 | .446 | 70.3 | 3.6 | 3.29 | 3.49 |
| Trevor Richards | | sp | 26 | .742 | 308 | .273 | 246 | .477 | 250 | .484 | 64.2 | 4.8 | 4.38 | 4.21 |
| Tanner Roark | Min | sp | 32 | .679 | 466 | .245 | 289 | .438 | 292 | .442 | 65.4 | 3.6 | 3.24 | 3.04 |
| David Robertson | Mil | cl | 34 | .794 | 44 | .273 | 46 | .541 | 46 | .541 | 11.8 | 5.2 | 4.87 | 4.65 |
| Fernando Rodney | | cl | 42 | .688 | 177 | .316 | 118 | .418 | 121 | .429 | 29.3 | 4.0 | 3.50 | 3.89 |
| Carlos Rodon* | Col | sp | 26 | .737 | 127 | .323 | 81 | .443 | 83 | .454 | 20.0 | 4.1 | 3.79 | 4.21 |
| Dereck Rodriguez | NYA | sp | 27 | .721 | 523 | .272 | 335 | .446 | 344 | .458 | 85.9 | 4.3 | 3.89 | 3.89 |
| Eduardo Rodriguez* | | sp | 26 | .706 | 465 | .280 | 342 | .449 | 349 | .459 | 84.4 | 4.2 | 3.82 | 3.76 |
| Jefry Rodriguez | Tor | sp | 25 | .811 | 273 | .311 | 218 | .513 | 220 | .518 | 60.1 | 5.8 | 5.23 | 5.64 |
| Richard Rodriguez | Mia | mr | 29 | .679 | 187 | .332 | 129 | .412 | 133 | .425 | 31.1 | 3.6 | 3.34 | 3.33 |
| Chaz Roe | | mr | 32 | .745 | 105 | .352 | 76 | .447 | 79 | .465 | 23.6 | 5.6 | 5.16 | 4.48 |
| Taylor Rogers* | | mr | 28 | .592 | 212 | .255 | 105 | .360 | 108 | .370 | 22.0 | 2.6 | 2.40 | 2.24 |
| Fernando Romero | NYN | sp | 24 | .705 | 88 | .284 | 55 | .437 | 55 | .437 | 14.2 | 4.3 | 3.87 | 3.17 |
| JoJo Romero* | | sp | 22 | .733 | 7 | .429 | 3 | .300 | 4 | .400 | 1.3 | 5.9 | 5.28 | 6.48 |
| Hector Rondon | Mia | cl | 31 | .474 | 158 | .241 | 73 | .293 | 73 | .293 | 12.4 | 1.6 | 1.50 | 1.34 |
| Trevor Rosenthal | SD | mr | 29 | .651 | 144 | .319 | 108 | .415 | 109 | .419 | 24.1 | 3.4 | 3.09 | 2.90 |
| Joe Ross | Mia | sp | 26 | .961 | 66 | .348 | 54 | .607 | 54 | .607 | 18.3 | 8.8 | 7.94 | 7.75 |
| Robbie Ross* | SD | mr | 30 | .510 | 17 | .235 | 7 | .280 | 8 | .320 | 1.6 | 2.6 | 2.31 | 2.85 |
| Tyson Ross | SF | sp | 32 | .650 | 34 | .382 | 17 | .354 | 17 | .354 | 4.2 | 3.3 | 2.85 | 3.89 |
| Zac Rosscup* | Mia | mr | 31 | .566 | 80 | .350 | 47 | .326 | 49 | .340 | 10.8 | 2.7 | 2.49 | 2.21 |
| Kyle Ryan* | ChN | mr | 27 | .739 | 78 | .308 | 50 | .442 | 52 | .460 | 13.3 | 4.6 | 4.26 | 4.32 |
| Hyun-jin Ryu* | LAN | sp | 32 | .768 | 347 | .294 | 244 | .487 | 246 | .491 | 65.5 | 5.0 | 4.56 | 4.30 |
| CC Sabathia* | Phi | sp | 38 | .806 | 166 | .295 | 123 | .506 | 126 | .519 | 35.4 | 5.7 | 5.25 | 4.81 |
| Danny Salazar | Tor | sp | 29 | .324 | 31 | .129 | 11 | .216 | 11 | .216 | 1.2 | 0.7 | 0.66 | 0.69 |
| Chris Sale* | Det | sp | 30 | .555 | 409 | .244 | 247 | .341 | 262 | .362 | 47.7 | 2.2 | 2.02 | 1.82 |
| Jeff Samardzija | Pit | sp | 34 | .631 | 407 | .251 | 225 | .388 | 233 | .402 | 52.7 | 3.3 | 3.01 | 2.65 |
| Aaron Sanchez | Tor | sp | 26 | .673 | 534 | .307 | 320 | .404 | 326 | .411 | 79.8 | 3.8 | 3.42 | 3.76 |
| Anibal Sanchez | SF | sp | 35 | .683 | 526 | .297 | 349 | .425 | 352 | .428 | 90.5 | 4.2 | 3.78 | 3.42 |
| Dennis Santana | Ari | sp | 23 | .865 | 265 | .351 | 203 | .525 | 207 | .535 | 61.6 | 6.5 | 5.89 | 5.97 |
| Josh Sborz | Min | mr | 25 | .702 | 44 | .386 | 31 | .425 | 31 | .425 | 8.7 | 4.8 | 4.24 | 4.04 |
| Kit Scheetz* | Tam | mr | 25 | .620 | 261 | .261 | 153 | .382 | 157 | .393 | 34.5 | 3.1 | 2.76 | 2.63 |
| Max Scherzer | Det | sp | 34 | .616 | 453 | .258 | 334 | .403 | 340 | .410 | 69.1 | 2.9 | 2.69 | 2.45 |
| John Schreiber | Atl | mr | 25 | .617 | 110 | .227 | 58 | .387 | 58 | .387 | 13.6 | 3.4 | 3.06 | 3.02 |
| Tanner Scott* | NYN | mr | 24 | .618 | 192 | .297 | 146 | .396 | 149 | .404 | 31.1 | 3.2 | 2.88 | 3.11 |
| Sam Selman* | Tex | mr | 28 | 1.051 | 61 | .410 | 76 | .661 | 76 | .661 | 25.2 | 10.5 | 9.29 | 11.13 |
| Antonio Senzatela | | sp | 24 | .766 | 486 | .270 | 358 | .484 | 366 | .495 | 91.3 | 4.7 | 4.31 | 4.64 |
| Mike Shawaryn | Tam | sp | 24 | .701 | 371 | .248 | 248 | .453 | 249 | .454 | 60.0 | 4.1 | 3.69 | 3.54 |
| Justus Sheffield* | Ari | sp | 23 | .813 | 387 | .315 | 307 | .512 | 310 | .517 | 83.9 | 5.5 | 5.04 | 4.97 |
| Chandler Shepherd | Atl | sp | 26 | .771 | 225 | .267 | 151 | .492 | 153 | .498 | 39.2 | 4.8 | 4.29 | 4.01 |
| Jimmie Sherfy | Col | mr | 27 | .653 | 164 | .323 | 111 | .405 | 112 | .409 | 27.1 | 3.7 | 3.34 | 2.96 |
| Matt Shoemaker | Mil | sp | 32 | .636 | 163 | .313 | 85 | .362 | 89 | .379 | 23.7 | 3.7 | 3.37 | 2.89 |
| Logan Shore | Bal | sp | 24 | .906 | 20 | .350 | 14 | .538 | 14 | .538 | 4.2 | 6.3 | 5.63 | 6.65 |
| Lucas Sims | Hou | sp | 25 | .754 | 269 | .294 | 240 | .485 | 244 | .493 | 63.3 | 5.0 | 4.55 | 4.65 |
| Tony Sipp* | NYN | mr | 35 | .643 | 101 | .307 | 62 | .383 | 65 | .401 | 15.6 | 3.6 | 3.22 | 2.80 |
| Tyler Skaggs* | StL | sp | 27 | .666 | 69 | .304 | 39 | .386 | 41 | .406 | 9.6 | 3.5 | 3.19 | 3.36 |
| Eric Skoglund* | LAN | sp | 26 | .588 | 90 | .267 | 44 | .333 | 48 | .364 | 10.3 | 3.0 | 2.71 | 3.11 |
| Devin Smeltzer* | Pit | sp | 23 | .678 | 84 | .226 | 57 | .432 | 60 | .455 | 13.9 | 3.8 | 3.52 | 3.18 |
| Caleb Smith* | Oak | sp | 27 | .681 | 272 | .279 | 193 | .429 | 199 | .442 | 45.6 | 3.8 | 3.44 | 3.49 |
| Carson Smith | Sea | mr | 29 | .570 | 232 | .272 | 131 | .345 | 135 | .355 | 28.6 | 2.7 | 2.40 | 2.25 |
| Joe Smith | Mil | mr | 35 | .763 | 89 | .315 | 56 | .455 | 57 | .463 | 15.0 | 4.6 | 4.30 | 4.80 |
| Will Smith* | Mia | cl | 29 | .579 | 125 | .288 | 76 | .355 | 77 | .360 | 17.3 | 2.9 | 2.68 | 2.56 |
| Drew Smyly* | Mil | sp | 30 | .843 | 423 | .324 | 362 | .538 | 363 | .539 | 106.3 | 6.1 | 5.61 | 5.21 |
| Cy Sneed | Pit | sp | 26 | .579 | 20 | .250 | 8 | .348 | 8 | .348 | 1.6 | 2.4 | 2.13 | 1.84 |
| Blake Snell* | Tor | sp | 26 | .544 | 273 | .245 | 168 | .357 | 168 | .357 | 31.0 | 2.3 | 2.10 | 1.86 |
| Chad Sobotka | LAN | mr | 25 | .812 | 85 | .353 | 64 | .485 | 64 | .485 | 19.1 | 6.2 | 5.89 | 6.01 |
| Sammy Solis* | Bal | mr | 30 | .629 | 138 | .261 | 105 | .415 | 105 | .415 | 22.3 | 3.3 | 3.09 | 3.48 |
| Joakim Soria | Phi | cl | 35 | .576 | 196 | .260 | 109 | .360 | 110 | .363 | 22.1 | 2.6 | 2.34 | 2.21 |
| Mike Soroka | Ari | sp | 21 | .782 | 415 | .320 | 276 | .481 | 280 | .488 | 77.8 | 5.3 | 4.76 | 4.50 |
| Craig Stammen | Mil | mr | 35 | .912 | 148 | .372 | 137 | .573 | 140 | .586 | 43.4 | 7.4 | 6.72 | 6.54 |
| Ryne Stanek | Oak | mr | 27 | .726 | 152 | .296 | 134 | .479 | 134 | .479 | 31.7 | 4.3 | 3.90 | 4.01 |
| Teddy Stankiewicz | Hou | sp | 25 | .786 | 156 | .237 | 110 | .500 | 113 | .514 | 28.7 | 4.9 | 4.49 | 4.92 |
| Cody Stashak | Was | mr | 25 | .442 | 58 | .155 | 20 | .274 | 20 | .274 | 3.0 | 1.3 | 1.15 | 1.16 |
| Josh Staumont | NYN | mr | 25 | .781 | 149 | .336 | 139 | .491 | 141 | .498 | 36.3 | 5.2 | 4.67 | 5.51 |
| Drew Steckenrider | NYA | mr | 28 | .543 | 28 | .286 | 20 | .339 | 21 | .356 | 4.7 | 2.9 | 2.57 | 2.44 |
| Robert Stock | Atl | mr | 29 | .430 | 23 | .174 | 13 | .295 | 13 | .295 | 1.8 | 1.4 | 1.30 | 1.25 |
| Matt Strahm* | LAA | mr | 27 | .741 | 381 | .294 | 304 | .468 | 311 | .479 | 79.7 | 4.8 | 4.28 | 4.36 |
| Stephen Strasburg | NYA | sp | 30 | .610 | 482 | .266 | 300 | .385 | 306 | .392 | 65.4 | 3.0 | 2.70 | 2.53 |
| Chris Stratton | Tor | sp | 28 | .647 | 179 | .257 | 103 | .409 | 103 | .409 | 24.3 | 3.6 | 3.28 | 3.20 |
| Ross Stripling | Cin | sp | 29 | .723 | 368 | .310 | 250 | .447 | 255 | .456 | 62.1 | 4.1 | 3.70 | 3.58 |
| Marcus Stroman | SD | sp | 28 | .674 | 571 | .298 | 325 | .400 | 336 | .414 | 75.5 | 3.4 | 3.14 | 3.46 |
| Pedro Strop | Tor | mr | 34 | .704 | 179 | .313 | 132 | .437 | 136 | .450 | 31.7 | 3.8 | 3.53 | 3.54 |
| Andrew Suarez* | SF | sp | 26 | .732 | 129 | .217 | 89 | .466 | 93 | .487 | 19.8 | 3.7 | 3.28 | 3.38 |
| Jose Suarez* | Tam | sp | 21 | .715 | 460 | .283 | 331 | .451 | 339 | .462 | 78.7 | 4.0 | 3.58 | 3.56 |
| Ranger Suarez* | Cle | sp | 23 | .667 | 91 | .253 | 58 | .426 | 58 | .426 | 11.2 | 2.9 | 2.61 | 3.31 |
| Wander Suero | Tor | mr | 27 | .767 | 222 | .311 | 154 | .467 | 159 | .482 | 43.3 | 5.1 | 4.65 | 4.54 |
| Cole Sulser | Cin | mr | 29 | .694 | 183 | .284 | 142 | .448 | 144 | .454 | 31.5 | 3.6 | 3.26 | 3.16 |
| Trey Supak | Ari | sp | 23 | .744 | 172 | .244 | 136 | .491 | 136 | .491 | 34.2 | 4.8 | 4.29 | 4.20 |
| Anthony Swarzak | Col | mr | 33 | .705 | 173 | .283 | 124 | .444 | 127 | .455 | 29.6 | 3.9 | 3.54 | 3.72 |
| Noah Syndergaard | | sp | 26 | .654 | 336 | .292 | 203 | .404 | 206 | .410 | 51.2 | 3.8 | 3.47 | 3.12 |
| Jameson Taillon | Col | sp | 27 | .689 | 142 | .282 | 84 | .424 | 85 | .429 | 19.9 | 3.6 | 3.32 | 2.97 |
| Masahiro Tanaka | LAN | sp | 30 | .587 | 561 | .278 | 287 | .352 | 292 | .358 | 64.0 | 2.8 | 2.54 | 2.17 |
| Stephen Tarpley* | LAN | mr | 26 | .659 | 337 | .291 | 213 | .405 | 218 | .414 | 52.0 | 3.9 | 3.48 | 3.62 |
| Curtis Taylor | SF | mr | 23 | .793 | 438 | .336 | 343 | .488 | 350 | .498 | 98.1 | 5.6 | 5.06 | 5.00 |
| Josh Taylor* | Tex | mr | 26 | .664 | 133 | .316 | 76 | .398 | 77 | .403 | 18.4 | 3.7 | 3.34 | 3.44 |
| Julio Teheran | SD | sp | 28 | .622 | 508 | .250 | 310 | .397 | 315 | .403 | 68.9 | 3.2 | 2.91 | 2.50 |
| Ryan Tepera | Mil | mr | 31 | .696 | 161 | .267 | 113 | .423 | 120 | .449 | 28.6 | 4.0 | 3.72 | 3.83 |
| Jake Thompson | SD | sp | 25 | .772 | 181 | .326 | 117 | .455 | 120 | .467 | 32.7 | 5.0 | 4.57 | 4.78 |
| Tyler Thornburg | Bal | mr | 30 | .549 | 193 | .233 | 104 | .338 | 108 | .351 | 21.7 | 2.5 | 2.28 | 2.31 |
| Trent Thornton | | sp | 25 | .819 | 313 | .342 | 228 | .506 | 232 | .514 | 64.0 | 5.5 | 5.03 | 4.97 |
| Lewis Thorpe* | KC | sp | 23 | .636 | 510 | .241 | 307 | .400 | 315 | .411 | 70.5 | 3.4 | 3.06 | 2.96 |
| Josh Tomlin | Hou | sp | 34 | .734 | 594 | .283 | 372 | .455 | 379 | .464 | 98.1 | 4.4 | 4.05 | 3.76 |
| Touki Toussaint | Tex | sp | 23 | .720 | 478 | .318 | 347 | .445 | 353 | .453 | 93.4 | 4.8 | 4.29 | 4.34 |
| Blake Treinen | Col | cl | 31 | .631 | 188 | .330 | 118 | .382 | 119 | .385 | 23.8 | 2.7 | 2.49 | 2.83 |
| Andrew Triggs | Atl | sp | 30 | .930 | 44 | .477 | 35 | .547 | 35 | .547 | 12.7 | 8.8 | 8.14 | 8.21 |
| Lou Trivino | | mr | 27 | .597 | 227 | .291 | 130 | .362 | 132 | .368 | 27.9 | 2.7 | 2.45 | 2.44 |
| Duane Underwood | Tex | sp | 24 | 1.111 | 23 | .478 | 18 | .667 | 18 | .667 | 6.0 | 9.0 | 8.10 | 10.00 |
| Jose Urena | Tam | sp | 27 | .637 | 241 | .241 | 138 | .393 | 143 | .407 | 32.9 | 3.4 | 3.09 | 2.85 |
| Julio Urias* | Oak | sp | 22 | .800 | 274 | .307 | 248 | .521 | 252 | .529 | 64.0 | 5.2 | 4.67 | 4.52 |
| Framber Valdez* | | sp | 25 | .672 | 283 | .247 | 201 | .430 | 206 | .441 | 49.4 | 4.0 | 3.62 | 3.44 |
| Andrew Vasquez* | Bos | mr | 25 | .639 | 185 | .281 | 131 | .396 | 137 | .414 | 32.5 | 3.8 | 3.45 | 3.50 |
| Felipe Vazquez* | NYA | cl | 27 | .649 | 181 | .298 | 130 | .405 | 134 | .417 | 29.7 | 3.3 | 3.02 | 2.88 |
| Vince Velasquez | StL | sp | 27 | .744 | 473 | .313 | 360 | .468 | 363 | .472 | 95.6 | 4.8 | 4.29 | 4.01 |
| Drew VerHagen | Cle | mr | 28 | .721 | 47 | .468 | 26 | .382 | 26 | .382 | 7.3 | 4.1 | 3.70 | 4.87 |
| Justin Verlander | | sp | 36 | .532 | 555 | .243 | 297 | .331 | 303 | .338 | 59.5 | 2.3 | 2.07 | 1.63 |
| Stephen Villines | | mr | 23 | .709 | 261 | .295 | 201 | .449 | 206 | .460 | 49.0 | 4.1 | 3.71 | 3.83 |
| Nick Vincent | StL | mr | 32 | .840 | 75 | .307 | 65 | .551 | 65 | .551 | 18.1 | 5.9 | 5.50 | 5.41 |
| Arodys Vizcaino | Cin | cl | 28 | 1.489 | 9 | .667 | 17 | .944 | 17 | .944 | 8.2 | 27.7 | 24.94 | 21.83 |
| Michael Wacha | Bos | sp | 27 | .780 | 154 | .286 | 126 | .506 | 127 | .510 | 34.2 | 5.3 | 4.85 | 4.72 |
| Jacob Waguespack | | sp | 25 | .481 | 56 | .214 | 27 | .297 | 29 | .319 | 4.8 | 1.9 | 1.65 | 1.78 |
| Bobby Wahl | Sea | mr | 27 | .621 | 25 | .360 | 20 | .339 | 24 | .407 | 5.9 | 3.8 | 3.57 | 2.85 |
| Adam Wainwright | Pit | sp | 37 | .653 | 510 | .269 | 312 | .404 | 318 | .412 | 73.2 | 3.5 | 3.18 | 3.28 |
| Marcus Walden | Mia | mr | 30 | 1.933 | 2 | .000 | 6 | 1.200 | 6 | 1.200 | 2.9 | 38.7 | 34.85 | 32.81 |
| Adam Warren | Sea | mr | 31 | .809 | 212 | .302 | 193 | .519 | 196 | .527 | 55.1 | 5.9 | 5.42 | 5.53 |
| Tony Watson* | Tor | mr | 34 | .543 | 200 | .290 | 102 | .323 | 103 | .326 | 19.9 | 2.2 | 1.92 | 1.86 |
| Luke Weaver | Cle | sp | 25 | .898 | 114 | .368 | 90 | .549 | 91 | .555 | 30.0 | 7.9 | 7.30 | 7.08 |
| Logan Webb | LAA | sp | 22 | 1.000 | 4 | .000 | 4 | .800 | 4 | .800 | 0.8 | 5.4 | 4.86 | 4.25 |
| Tyler Webb* | | mr | 28 | .612 | 129 | .302 | 75 | .373 | 76 | .378 | 15.3 | 2.7 | 2.46 | 2.53 |
| Ryan Weber | | sp | 28 | .744 | 617 | .306 | 347 | .438 | 358 | .452 | 94.8 | 4.5 | 4.14 | 4.11 |
| Patrick Weigel | Tex | sp | 24 | .849 | 443 | .323 | 342 | .522 | 350 | .534 | 109.8 | 6.9 | 6.23 | 5.77 |
| Blake Weiman* | Atl | mr | 23 | .759 | 149 | .329 | 89 | .443 | 91 | .453 | 26.2 | 5.1 | 4.72 | 4.76 |
| J.B. Wendelken | | mr | 26 | .697 | 213 | .277 | 150 | .439 | 154 | .450 | 38.6 | 4.2 | 3.76 | 3.57 |
| Joey Wentz* | Ari | sp | 21 | .664 | 44 | .250 | 29 | .426 | 29 | .426 | 7.8 | 4.4 | 3.95 | 3.07 |
| Zack Wheeler | Mia | sp | 29 | .641 | 594 | .278 | 364 | .393 | 377 | .407 | 87.6 | 3.5 | 3.14 | 2.91 |
| Mitchell White | Cin | sp | 24 | .890 | 63 | .333 | 48 | .558 | 48 | .558 | 15.3 | 7.2 | 6.75 | 6.37 |
| Forrest Whitley | Atl | sp | 21 | .670 | 281 | .288 | 204 | .426 | 206 | .430 | 48.8 | 3.9 | 3.56 | 3.55 |
| Rowan Wick | Was | mr | 26 | .976 | 52 | .288 | 58 | .624 | 59 | .634 | 18.7 | 8.7 | 8.13 | 8.47 |
| Taylor Widener | Ari | sp | 24 | .781 | 66 | .273 | 65 | .516 | 66 | .524 | 17.1 | 5.7 | 5.19 | 5.73 |
| Brad Wieck* | StL | mr | 27 | .694 | 125 | .280 | 118 | .456 | 122 | .471 | 28.5 | 4.3 | 3.83 | 3.61 |
| Aaron Wilkerson | KC | sp | 30 | .772 | 153 | .314 | 105 | .471 | 108 | .484 | 30.3 | 5.5 | 4.92 | 5.03 |
| Taylor Williams | StL | mr | 27 | .716 | 167 | .287 | 120 | .453 | 121 | .457 | 29.7 | 4.2 | 3.83 | 3.71 |
| Trevor Williams | Tam | sp | 27 | .740 | 454 | .280 | 295 | .457 | 302 | .468 | 78.8 | 4.6 | 4.27 | 4.11 |
| Bryse Wilson | StL | sp | 21 | .633 | 531 | .254 | 312 | .393 | 322 | .406 | 70.0 | 3.2 | 2.89 | 2.70 |
| Justin Wilson* | Det | mr | 31 | 1.001 | 33 | .394 | 55 | .663 | 55 | .663 | 16.7 | 8.7 | 7.81 | 8.22 |
| Dan Winkler | LAN | mr | 29 | .681 | 197 | .274 | 136 | .424 | 140 | .436 | 31.8 | 3.7 | 3.30 | 3.30 |
| Matt Wisler | Tam | sp | 26 | .822 | 90 | .322 | 73 | .529 | 73 | .529 | 20.0 | 5.6 | 4.97 | 4.72 |
| Nick Wittgren | StL | mr | 28 | .692 | 245 | .302 | 155 | .423 | 159 | .434 | 41.2 | 4.2 | 3.85 | 3.44 |
| Alex Wood* | | sp | 28 | .683 | 165 | .273 | 112 | .431 | 115 | .442 | 27.9 | 4.1 | 3.63 | 2.96 |
| Hunter Wood | | mr | 25 | .924 | 144 | .368 | 125 | .573 | 128 | .587 | 37.8 | 7.0 | 6.29 | 6.77 |
| Jake Woodford | | sp | 22 | .907 | 255 | .329 | 196 | .554 | 199 | .562 | 64.4 | 7.8 | 7.25 | 7.00 |
| Brandon Woodruff | ChA | sp | 26 | .306 | 26 | .115 | 9 | .220 | 9 | .220 | 1.0 | 0.8 | 0.74 | 0.57 |
| Jordan Yamamoto | | sp | 23 | .809 | 233 | .305 | 182 | .513 | 183 | .515 | 51.2 | 5.6 | 5.10 | 4.91 |
| Ryan Yarbrough* | SD | mr | 27 | .822 | 320 | .331 | 233 | .500 | 239 | .513 | 67.6 | 5.8 | 5.23 | 5.52 |
| Kirby Yates | Bos | mr | 32 | .560 | 137 | .219 | 98 | .381 | 98 | .381 | 18.4 | 2.5 | 2.27 | 1.84 |
| Huascar Ynoa | Ari | sp | 21 | .829 | 21 | .286 | 20 | .556 | 20 | .556 | 4.7 | 5.6 | 5.23 | 6.15 |
| Daniel Zamora* | Cin | mr | 26 | .864 | 112 | .375 | 105 | .541 | 107 | .552 | 31.1 | 6.8 | 6.04 | 6.20 |
| T.J. Zeuch | Cin | sp | 23 | .831 | 54 | .333 | 36 | .529 | 36 | .529 | 10.8 | 6.1 | 5.60 | 4.37 |
| Jordan Zimmermann | Pit | sp | 33 | .000 | 1 | .000 | 0 | .000 | 0 | .000 | 0.0 | 0.0 | 0.00 | 0.00 |
| Start |
| Name | Team | P | Age | GS | CG | CG% | SHO | QS | QS% | RS | RS/G | RL | RLS | RL% | PCH/G | STR% |
| Austin L. Adams | Cle | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 18 | 6 | .333 | 24.2 | .554 |
| Chance Adams | KC | sp | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 1 | 0 | .000 | 25.3 | .625 |
| Dario Agrazal | LAA | sp | 24 | 8 | 0 | .000 | 0 | 3 | .375 | 52 | 6.5 | 11 | 4 | .364 | 88.3 | .640 |
| Jorge Alcala | Tor | sp | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 1 | 1 | 1.000 | 18.6 | .608 |
| Sandy Alcantara | Bos | sp | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 2 | .333 | 22.6 | .557 |
| Scott Alexander* | LAA | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 3 | .333 | 19.1 | .575 |
| Kolby Allard* | | sp | 21 | 31 | 0 | .000 | 0 | 12 | .387 | 106 | 3.4 | 18 | 9 | .500 | 80.1 | .613 |
| Cody Allen | Bal | cl | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 30 | 12 | .400 | 17.2 | .624 |
| Dan Altavilla | LAN | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 13 | 3 | .231 | 25.0 | .597 |
| Jose Alvarado* | Ari | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 14 | 6 | .429 | 21.9 | .611 |
| Jose Alvarez* | Min | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 3 | .375 | 18.6 | .589 |
| Yadier Alvarez | Hou | sp | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 0 | .000 | 13.2 | .591 |
| Adbert Alzolay | Oak | sp | 24 | 7 | 0 | .000 | 0 | 2 | .286 | 24 | 3.4 | 11 | 5 | .455 | 68.1 | .599 |
| Brett Anderson* | Sea | sp | 31 | 34 | 0 | .000 | 0 | 16 | .471 | 130 | 3.8 | 31 | 8 | .258 | 69.2 | .631 |
| Ian Anderson | Tam | sp | 21 | 32 | 0 | .000 | 0 | 11 | .344 | 119 | 3.7 | 20 | 4 | .200 | 90.0 | .566 |
| Justin Anderson | Tex | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 16.3 | .633 |
| Nick Anderson | Tex | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 45 | 12 | .267 | 19.6 | .594 |
| Shaun Anderson | SF | sp | 24 | 10 | 0 | .000 | 0 | 7 | .700 | 54 | 5.4 | 4 | 0 | .000 | 72.1 | .621 |
| Tanner Anderson | Mil | mr | 26 | 20 | 0 | .000 | 0 | 6 | .300 | 105 | 5.3 | 8 | 3 | .375 | 92.0 | .643 |
| Tyler Anderson* | Bos | sp | 29 | 6 | 0 | .000 | 0 | 5 | .833 | 26 | 4.3 | 1 | 0 | .000 | 92.0 | .643 |
| Victor Arano | Tex | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 1 | 0 | .000 | 17.9 | .629 |
| Chris Archer | SD | sp | 30 | 27 | 0 | .000 | 0 | 7 | .259 | 84 | 3.1 | 20 | 7 | .350 | 90.3 | .637 |
| Rogelio Armenteros | Sea | sp | 25 | 20 | 0 | .000 | 0 | 9 | .450 | 78 | 3.9 | 34 | 5 | .147 | 58.0 | .585 |
| Shawn Armstrong | | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 18 | 7 | .389 | 22.5 | .610 |
| Jake Arrieta | Min | sp | 33 | 25 | 0 | .000 | 0 | 10 | .400 | 120 | 4.8 | 14 | 2 | .143 | 88.3 | .596 |
| Luis Avilan* | | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 0 | .000 | 17.2 | .640 |
| Michel Baez | Tex | sp | 23 | 11 | 0 | .000 | 0 | 4 | .364 | 40 | 3.6 | 14 | 3 | .214 | 58.3 | .580 |
| Pedro Baez | Min | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 21 | 6 | .286 | 19.7 | .642 |
| Anthony Banda* | Det | sp | 25 | 4 | 0 | .000 | 0 | 3 | .750 | 20 | 5.0 | 3 | 1 | .333 | 59.0 | .659 |
| Manny Banuelos* | ChA | sp | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 13 | 4 | .308 | 20.7 | .583 |
| Jacob Barnes | Tor | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 34 | 5 | .147 | 21.8 | .589 |
| Matt Barnes | Det | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 18 | 5 | .278 | 22.7 | .594 |
| Tony Barnette | Mil | mr | 35 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 4 | .444 | 19.9 | .626 |
| Kyle Barraclough | Was | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 28.0 | .429 |
| Jaime Barria | Cle | sp | 22 | 32 | 0 | .000 | 0 | 10 | .313 | 139 | 4.3 | 20 | 3 | .150 | 71.4 | .628 |
| Chris Bassitt | Mil | sp | 30 | 12 | 0 | .000 | 0 | 2 | .167 | 64 | 5.3 | 9 | 3 | .333 | 87.5 | .618 |
| Trevor Bauer | | sp | 28 | 34 | 3 | .088 | 0 | 23 | .676 | 166 | 4.9 | 20 | 6 | .300 | 103.3 | .631 |
| Gerson Bautista | Cin | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 10 | 0 | .000 | 20.8 | .602 |
| Cam Bedrosian | Tam | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 7 | .467 | 20.8 | .640 |
| Tyler Beede | NYA | sp | 26 | 1 | 0 | .000 | 0 | 1 | 1.000 | 2 | 2.0 | 1 | 0 | .000 | 76.0 | .632 |
| Jalen Beeks* | LAN | sp | 25 | 32 | 0 | .000 | 0 | 17 | .531 | 89 | 2.8 | 21 | 7 | .333 | 91.3 | .616 |
| Travis Bergen* | ChA | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 1 | .200 | 19.5 | .593 |
| Jose Berrios | Det | sp | 25 | 29 | 0 | .000 | 0 | 20 | .690 | 149 | 5.1 | 17 | 2 | .118 | 94.0 | .644 |
| Trevor Bettencourt | Mia | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 17 | 5 | .294 | 23.3 | .617 |
| Chad Bettis | LAA | sp | 30 | 2 | 0 | .000 | 0 | 1 | .500 | 12 | 6.0 | 1 | 0 | .000 | 86.5 | .624 |
| Jesse Biddle* | Col | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 10 | 4 | .400 | 15.6 | .649 |
| Shane Bieber | KC | sp | 24 | 33 | 0 | .000 | 0 | 24 | .727 | 127 | 3.8 | 19 | 3 | .158 | 95.7 | .662 |
| Brandon Bielak | Ari | sp | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 3 | .375 | 18.1 | .571 |
| Ray Black | NYN | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 18 | 5 | .278 | 24.3 | .577 |
| Richard Bleier* | ChA | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 1 | .083 | 19.6 | .638 |
| Jerry Blevins* | Sea | mr | 35 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 46 | 12 | .261 | 18.2 | .585 |
| Ben Bowden* | Oak | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 35 | 10 | .286 | 20.5 | .563 |
| Matthew Bowman | ChN | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 17 | 8 | .471 | 19.7 | .623 |
| Matt Boyd* | | sp | 28 | 30 | 0 | .000 | 0 | 16 | .533 | 100 | 3.3 | 14 | 3 | .214 | 79.7 | .635 |
| Brad Brach | SD | cl | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 7 | 0 | .000 | 18.3 | .606 |
| Archie Bradley | | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 18 | 6 | .333 | 20.2 | .623 |
| Ryan Brasier | Mil | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 14 | 5 | .357 | 18.4 | .630 |
| Steven Brault* | Cle | mr | 27 | 6 | 0 | .000 | 0 | 2 | .333 | 17 | 2.8 | 7 | 1 | .143 | 69.3 | .599 |
| John Brebbia | Min | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 5 | .333 | 21.2 | .660 |
| Brandon Brennan | ChN | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 10 | 1 | .100 | 24.3 | .580 |
| Colten Brewer | Cle | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 0 | .000 | 20.7 | .565 |
| Zack Britton* | NYA | cl | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 24 | 10 | .417 | 20.5 | .620 |
| Walker Buehler | Cle | sp | 24 | 28 | 0 | .000 | 0 | 6 | .214 | 93 | 3.3 | 18 | 8 | .444 | 86.8 | .615 |
| Madison Bumgarner* | Mia | sp | 29 | 35 | 0 | .000 | 0 | 21 | .600 | 132 | 3.8 | 15 | 2 | .133 | 89.4 | .637 |
| Aaron Bummer* | LAA | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 1 | .083 | 17.4 | .610 |
| Dylan Bundy | LAA | sp | 26 | 31 | 0 | .000 | 0 | 19 | .613 | 135 | 4.4 | 15 | 6 | .400 | 90.5 | .635 |
| Brock Burke* | ChN | sp | 22 | 2 | 0 | .000 | 0 | 0 | .000 | 13 | 6.5 | 1 | 0 | .000 | 42.0 | .624 |
| Corbin Burnes | Ari | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 22 | 4 | .182 | 17.6 | .611 |
| Matt Bush | SF | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 22 | 7 | .318 | 16.4 | .612 |
| Ty Buttrey | Ari | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 31 | 10 | .323 | 18.7 | .587 |
| Genesis Cabrera* | Ari | sp | 22 | 1 | 0 | .000 | 0 | 0 | .000 | 1 | 1.0 | 4 | 2 | .500 | 22.6 | .593 |
| Trevor Cahill | | sp | 31 | 9 | 0 | .000 | 0 | 3 | .333 | 37 | 4.1 | 8 | 1 | .125 | 45.6 | .630 |
| Griffin Canning | Tam | sp | 23 | 22 | 0 | .000 | 0 | 9 | .409 | 59 | 2.7 | 21 | 3 | .143 | 88.7 | .605 |
| Shane Carle | Pit | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 3 | 1.000 | 17.0 | .549 |
| Carlos Carrasco | Was | sp | 32 | 13 | 0 | .000 | 0 | 10 | .769 | 66 | 5.1 | 5 | 4 | .800 | 104.5 | .672 |
| Cody Carroll | NYN | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 3 | .750 | 22.9 | .604 |
| Diego Castillo | LAN | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 2 | .222 | 17.3 | .606 |
| Luis Castillo | | sp | 26 | 31 | 0 | .000 | 0 | 17 | .548 | 135 | 4.4 | 13 | 2 | .154 | 95.2 | .631 |
| Dylan Cease | Mil | sp | 23 | 23 | 0 | .000 | 0 | 11 | .478 | 108 | 4.7 | 17 | 5 | .294 | 88.9 | .594 |
| Xavier Cedeno* | Pit | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 3 | .500 | 13.4 | .541 |
| Luis Cessa | | sp | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 5 | .455 | 21.7 | .616 |
| Jhoulys Chacin | Det | sp | 31 | 23 | 0 | .000 | 0 | 11 | .478 | 128 | 5.6 | 22 | 5 | .227 | 91.7 | .598 |
| Andrew Chafin* | | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 7 | 3 | .429 | 17.6 | .615 |
| Aroldis Chapman* | | cl | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 14 | 5 | .357 | 21.4 | .610 |
| JT Chargois | LAN | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 5 | .625 | 19.5 | .589 |
| Jesse Chavez | StL | mr | 35 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 24 | 10 | .417 | 19.4 | .644 |
| Yonny Chirinos | ChN | sp | 25 | 8 | 0 | .000 | 0 | 4 | .500 | 31 | 3.9 | 5 | 1 | .200 | 97.5 | .651 |
| Adam Cimber | LAA | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 17 | 2 | .118 | 20.5 | .684 |
| Tony Cingrani* | Hou | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 0 | .000 | 14.8 | .640 |
| Steve Cishek | Min | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 18 | 6 | .333 | 21.5 | .622 |
| Aaron Civale | Was | sp | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 4 | .333 | 27.3 | .658 |
| Alex Claudio* | | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 38 | 8 | .211 | 19.2 | .658 |
| Michael Clevinger | Bos | sp | 28 | 19 | 0 | .000 | 0 | 10 | .526 | 94 | 4.9 | 13 | 5 | .385 | 96.2 | .604 |
| Tyler Clippard | Bal | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 31 | 4 | .129 | 17.2 | .622 |
| Corbin Clouse* | Cle | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 3 | .333 | 24.7 | .632 |
| Gerrit Cole | LAA | sp | 28 | 33 | 0 | .000 | 0 | 17 | .515 | 157 | 4.8 | 22 | 4 | .182 | 93.8 | .649 |
| Taylor Cole | ChN | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 14 | 5 | .357 | 22.3 | .628 |
| Alex Colome | | cl | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 25 | 6 | .240 | 18.5 | .630 |
| Patrick Corbin* | Bal | sp | 29 | 33 | 0 | .000 | 0 | 19 | .576 | 119 | 3.6 | 14 | 5 | .357 | 93.8 | .644 |
| Nestor Cortes* | Tam | sp | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 34 | 12 | .353 | 19.0 | .592 |
| Kyle Crick | | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 16 | 2 | .125 | 19.3 | .575 |
| Kyle Crockett* | Min | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 13 | 2 | .154 | 16.5 | .663 |
| Yu Darvish | NYA | sp | 32 | 32 | 0 | .000 | 0 | 15 | .469 | 153 | 4.8 | 13 | 3 | .231 | 93.1 | .624 |
| Zach Davies | ChA | sp | 26 | 17 | 0 | .000 | 0 | 8 | .471 | 57 | 3.4 | 5 | 1 | .200 | 88.4 | .626 |
| Austin Davis* | | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 21 | 4 | .190 | 19.9 | .608 |
| Wade Davis | Det | cl | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 0 | .000 | 17.8 | .596 |
| Grant Dayton* | KC | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 4 | .333 | 26.8 | .602 |
| Enyel de los Santos | Oak | sp | 23 | 1 | 0 | .000 | 0 | 0 | .000 | 1 | 1.0 | 22 | 5 | .227 | 22.2 | .572 |
| Dean Deetz | StL | mr | 25 | 11 | 0 | .000 | 0 | 3 | .273 | 44 | 4.0 | 10 | 4 | .400 | 73.0 | .604 |
| Jacob deGrom | Tor | sp | 31 | 34 | 4 | .118 | 1 | 17 | .500 | 180 | 5.3 | 19 | 5 | .263 | 106.1 | .650 |
| Randall Delgado | Mil | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 2 | .333 | 22.4 | .579 |
| Anthony DeSclafani | Ari | sp | 29 | 30 | 0 | .000 | 0 | 14 | .467 | 133 | 4.4 | 10 | 1 | .100 | 82.7 | .655 |
| Chris Devenski | Det | mr | 28 | 3 | 0 | .000 | 0 | 0 | .000 | 12 | 4.0 | 8 | 3 | .375 | 21.7 | .637 |
| Edwin Diaz | Cle | cl | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 13 | 2 | .154 | 19.2 | .603 |
| Jumbo Diaz | NYN | mr | 35 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 28 | 9 | .321 | 21.4 | .593 |
| Miguel Diaz | Tex | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 0 | .000 | 23.8 | .529 |
| Phillip Diehl* | Bos | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 34 | 8 | .235 | 29.0 | .600 |
| Jake Diekman* | | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 7 | 3 | .429 | 16.7 | .579 |
| Kyle Dohy* | Hou | mr | 22 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 73 | 21 | .288 | 16.6 | .503 |
| Seranthony Dominguez | StL | cl | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 0 | .000 | 17.0 | .592 |
| Sean Doolittle* | | cl | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 2 | .133 | 16.1 | .667 |
| Oliver Drake | Mia | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 16.8 | .643 |
| Tyler Duffey | | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 4 | .444 | 25.8 | .630 |
| Danny Duffy* | SF | sp | 30 | 15 | 0 | .000 | 0 | 9 | .600 | 66 | 4.4 | 17 | 3 | .176 | 84.5 | .621 |
| Robert Dugger | Tam | sp | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 7 | 2 | .286 | 23.4 | .613 |
| Zach Duke* | KC | mr | 36 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 21 | 2 | .095 | 14.8 | .591 |
| Justin Dunn | Ari | sp | 23 | 1 | 0 | .000 | 0 | 0 | .000 | 8 | 8.0 | 0 | 0 | .000 | 91.0 | .637 |
| Jon Duplantier | Col | sp | 24 | 10 | 0 | .000 | 0 | 2 | .200 | 49 | 4.9 | 7 | 1 | .143 | 81.7 | .600 |
| Sam Dyson | Tam | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 1 | .200 | 18.5 | .612 |
| Carl Edwards Jr. | | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 6 | .500 | 23.1 | .561 |
| Zach Eflin | Cle | sp | 25 | 27 | 0 | .000 | 0 | 11 | .407 | 100 | 3.7 | 18 | 8 | .444 | 88.3 | .641 |
| Jerad Eickhoff | LAA | sp | 28 | 17 | 0 | .000 | 0 | 11 | .647 | 92 | 5.4 | 12 | 1 | .083 | 92.1 | .635 |
| Roenis Elias* | Cle | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 17 | 3 | .176 | 25.5 | .594 |
| Seth Elledge | LAA | mr | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 0 | .000 | 29.0 | .598 |
| Nathan Eovaldi | LAA | sp | 29 | 17 | 0 | .000 | 0 | 10 | .588 | 77 | 4.5 | 2 | 2 | 1.000 | 92.8 | .669 |
| Robbie Erlin* | | mr | 28 | 32 | 2 | .063 | 0 | 25 | .781 | 122 | 3.8 | 26 | 6 | .231 | 90.1 | .653 |
| Luis Escobar | Tor | sp | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 0 | .000 | 8.5 | .706 |
| Raynel Espinal | NYN | mr | 25 | 19 | 0 | .000 | 0 | 12 | .632 | 65 | 3.4 | 5 | 2 | .400 | 93.2 | .637 |
| Carlos Estevez | Min | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 0 | .000 | 25.5 | .598 |
| Tommy Eveld | Cle | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 6 | .667 | 19.9 | .606 |
| Alex Faedo | Hou | sp | 23 | 14 | 0 | .000 | 0 | 8 | .571 | 48 | 3.4 | 10 | 3 | .300 | 48.8 | .597 |
| Jeurys Familia | | cl | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 19 | 5 | .263 | 21.7 | .613 |
| Jacob Faria | Tam | sp | 25 | 10 | 0 | .000 | 0 | 0 | .000 | 26 | 2.6 | 5 | 2 | .400 | 86.3 | .571 |
| Erick Fedde | Cle | sp | 26 | 1 | 0 | .000 | 0 | 1 | 1.000 | 1 | 1.0 | 24 | 6 | .250 | 20.7 | .607 |
| Michael Feliz | Oak | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 20.0 | .600 |
| Caleb Ferguson* | Col | mr | 22 | 26 | 0 | .000 | 0 | 7 | .269 | 178 | 6.8 | 22 | 10 | .455 | 58.3 | .601 |
| Junior Fernandez | StL | mr | 22 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 1 | .500 | 16.7 | .564 |
| J.P. Feyereisen | Was | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 5 | .625 | 20.6 | .605 |
| Josh Fields | Phi | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 7 | 0 | .000 | 21.1 | .649 |
| Mike Fiers | | sp | 34 | 32 | 0 | .000 | 0 | 18 | .563 | 148 | 4.6 | 11 | 4 | .364 | 84.6 | .636 |
| Jack Flaherty | Bal | sp | 23 | 32 | 1 | .031 | 1 | 17 | .531 | 142 | 4.4 | 17 | 6 | .353 | 89.5 | .631 |
| Chris Flexen | Hou | sp | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 14.8 | .635 |
| Dylan Floro | Cle | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 0 | .000 | 37.8 | .611 |
| Mike Foltynewicz | | sp | 27 | 25 | 0 | .000 | 0 | 14 | .560 | 116 | 4.6 | 5 | 2 | .400 | 87.3 | .622 |
| Wilmer Font | SF | sp | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 32 | 13 | .406 | 18.5 | .645 |
| Kyle Freeland* | ChA | sp | 26 | 33 | 2 | .061 | 1 | 17 | .515 | 131 | 4.0 | 16 | 4 | .250 | 101.5 | .605 |
| Max Fried* | Ari | sp | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 18 | 8 | .444 | 20.0 | .581 |
| Jace Fry* | Bos | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 8 | .533 | 21.0 | .577 |
| Paul Fry* | ChA | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 35 | 6 | .171 | 20.1 | .603 |
| Carson Fulmer | Hou | sp | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 35 | 10 | .286 | 16.4 | .587 |
| Kyle Funkhouser | KC | sp | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 3 | .333 | 27.1 | .573 |
| Drew Gagnon | LAA | sp | 29 | 8 | 0 | .000 | 0 | 2 | .250 | 48 | 6.0 | 4 | 1 | .250 | 87.0 | .598 |
| Giovanny Gallegos | SF | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 52 | 11 | .212 | 19.6 | .619 |
| Zac Gallen | Cin | sp | 23 | 11 | 0 | .000 | 0 | 5 | .455 | 29 | 2.6 | 4 | 0 | .000 | 85.8 | .639 |
| John Gant | Hou | sp | 26 | 33 | 0 | .000 | 0 | 13 | .394 | 134 | 4.1 | 32 | 14 | .438 | 91.3 | .599 |
| Edgar Garcia | Phi | mr | 22 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 31.0 | .516 |
| Jarlin Garcia* | Cle | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 31.1 | .628 |
| Yimi Garcia | SD | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 14 | 2 | .143 | 19.9 | .656 |
| Amir Garrett* | Tex | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 29 | 10 | .345 | 21.2 | .585 |
| Kevin Gausman | | sp | 28 | 29 | 0 | .000 | 0 | 17 | .586 | 123 | 4.2 | 12 | 4 | .333 | 89.7 | .638 |
| Cory Gearrin | Atl | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 25 | 10 | .400 | 16.7 | .619 |
| Domingo German | | sp | 26 | 11 | 1 | .091 | 1 | 4 | .364 | 58 | 5.3 | 4 | 0 | .000 | 86.4 | .591 |
| Ian Gibaut | ChN | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 24.3 | .575 |
| Kyle Gibson | Bos | sp | 31 | 32 | 1 | .031 | 1 | 25 | .781 | 152 | 4.8 | 16 | 2 | .125 | 100.0 | .617 |
| Ken Giles | Sea | cl | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 25 | 12 | .480 | 19.3 | .628 |
| Kevin Ginkel | KC | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 22 | 5 | .227 | 20.0 | .597 |
| Lucas Giolito | Hou | sp | 24 | 4 | 1 | .250 | 0 | 2 | .500 | 16 | 4.0 | 7 | 3 | .429 | 74.2 | .593 |
| Mychal Givens | | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 10 | 4 | .400 | 23.2 | .615 |
| Tyler Glasnow | Oak | sp | 25 | 11 | 0 | .000 | 0 | 4 | .364 | 54 | 4.9 | 7 | 3 | .429 | 98.4 | .611 |
| Zack Godley | NYN | sp | 29 | 29 | 0 | .000 | 0 | 17 | .586 | 121 | 4.2 | 15 | 3 | .200 | 84.0 | .607 |
| Luiz Gohara* | Sea | sp | 22 | 5 | 0 | .000 | 0 | 1 | .200 | 29 | 5.8 | 8 | 6 | .750 | 46.2 | .578 |
| Austin Gomber* | StL | sp | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 1 | .500 | 24.9 | .550 |
| Stephen Gonsalves* | KC | sp | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 3 | .333 | 19.3 | .602 |
| Tony Gonsolin | Min | sp | 25 | 9 | 0 | .000 | 0 | 0 | .000 | 40 | 4.4 | 9 | 1 | .111 | 79.9 | .591 |
| Marco Gonzales* | StL | sp | 27 | 32 | 0 | .000 | 0 | 17 | .531 | 126 | 3.9 | 13 | 6 | .462 | 87.5 | .667 |
| Chi Chi Gonzalez | ChN | sp | 27 | 31 | 0 | .000 | 0 | 18 | .581 | 123 | 4.0 | 24 | 6 | .250 | 90.4 | .601 |
| Gio Gonzalez* | | sp | 33 | 22 | 0 | .000 | 0 | 8 | .364 | 99 | 4.5 | 15 | 3 | .200 | 91.7 | .597 |
| Nick Goody | | mr | 27 | 1 | 0 | .000 | 0 | 0 | .000 | 2 | 2.0 | 11 | 3 | .273 | 19.7 | .635 |
| Trevor Gott | Atl | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 26 | 3 | .115 | 19.5 | .598 |
| Matt Grace* | LAA | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 17 | 1 | .059 | 21.8 | .617 |
| Jon Gray | Phi | sp | 27 | 28 | 1 | .036 | 1 | 13 | .464 | 128 | 4.6 | 9 | 3 | .333 | 89.6 | .650 |
| Sonny Gray | SF | sp | 29 | 38 | 0 | .000 | 0 | 10 | .263 | 158 | 4.2 | 24 | 6 | .250 | 83.0 | .606 |
| Chad Green | ChN | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 1 | .333 | 17.9 | .653 |
| Shane Greene | Bal | cl | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 0 | .000 | 19.8 | .601 |
| Luke Gregerson | Phi | mr | 35 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 23.1 | .690 |
| Zack Greinke | | sp | 35 | 32 | 3 | .094 | 0 | 23 | .719 | 107 | 3.3 | 15 | 4 | .267 | 98.8 | .651 |
| Robert Gsellman | Min | cl | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 0 | .000 | 37.5 | .587 |
| Junior Guerra | Tam | sp | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 32 | 7 | .219 | 20.3 | .613 |
| Tayron Guerrero | NYA | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 2 | .250 | 26.4 | .556 |
| Vladimir Gutierrez | Cin | sp | 23 | 5 | 0 | .000 | 0 | 2 | .400 | 19 | 3.8 | 6 | 1 | .167 | 89.7 | .604 |
| Jorge Guzman | NYA | sp | 23 | 1 | 0 | .000 | 0 | 0 | .000 | 4 | 4.0 | 0 | 0 | .000 | 103.0 | .485 |
| Josh Hader* | Oak | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 29 | 5 | .172 | 20.0 | .599 |
| Matt Hall* | ChN | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 2 | .400 | 31.9 | .600 |
| Cole Hamels* | | sp | 35 | 30 | 2 | .067 | 1 | 16 | .533 | 160 | 5.3 | 17 | 8 | .471 | 103.1 | .614 |
| Ian Hamilton | Tam | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 1 | 1 | 1.000 | 16.8 | .619 |
| Brad Hand* | SD | cl | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 17 | 7 | .412 | 20.2 | .629 |
| Alec Hansen | KC | sp | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 15.7 | .553 |
| J.A. Happ* | ChN | sp | 36 | 35 | 0 | .000 | 0 | 19 | .543 | 158 | 4.5 | 17 | 5 | .294 | 91.6 | .637 |
| Blaine Hardy* | Mil | mr | 32 | 33 | 0 | .000 | 0 | 22 | .667 | 107 | 3.2 | 21 | 9 | .429 | 92.1 | .654 |
| Ryne Harper | ChN | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 7 | .467 | 22.7 | .628 |
| Will Harris | Pit | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 26 | 3 | .115 | 15.5 | .651 |
| Donnie Hart* | Mil | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 31 | 13 | .419 | 20.6 | .590 |
| Hunter Harvey | | sp | 24 | 2 | 0 | .000 | 0 | 0 | .000 | 10 | 5.0 | 5 | 4 | .800 | 51.8 | .629 |
| Matt Harvey | Pit | sp | 30 | 12 | 0 | .000 | 0 | 6 | .500 | 57 | 4.8 | 7 | 2 | .286 | 67.4 | .640 |
| Andrew Heaney* | Phi | sp | 28 | 20 | 0 | .000 | 0 | 10 | .500 | 89 | 4.4 | 5 | 0 | .000 | 92.7 | .643 |
| Ben Heller | LAA | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 38.5 | .649 |
| Heath Hembree | SD | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 13 | 1 | .077 | 18.0 | .642 |
| Kyle Hendricks | | sp | 29 | 34 | 0 | .000 | 0 | 21 | .618 | 161 | 4.7 | 11 | 3 | .273 | 83.5 | .660 |
| Liam Hendriks | ChN | mr | 30 | 34 | 0 | .000 | 0 | 13 | .382 | 155 | 4.6 | 22 | 11 | .500 | 87.6 | .636 |
| Jimmy Herget | Col | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 4 | .364 | 19.4 | .649 |
| Darwinzon Hernandez* | Tor | sp | 22 | 2 | 0 | .000 | 0 | 0 | .000 | 8 | 4.0 | 5 | 2 | .400 | 35.0 | .557 |
| David Hernandez | Mil | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 21 | 4 | .190 | 23.1 | .595 |
| Elieser Hernandez | | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 14 | 2 | .143 | 19.6 | .585 |
| Felix Hernandez | Tor | sp | 33 | 4 | 1 | .250 | 0 | 4 | 1.000 | 14 | 3.5 | 1 | 0 | .000 | 96.0 | .654 |
| Jonathan Hernandez | Tor | sp | 22 | 1 | 0 | .000 | 0 | 0 | .000 | 8 | 8.0 | 0 | 0 | .000 | 71.0 | .549 |
| Kelvin Herrera | NYN | cl | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 33 | 5 | .152 | 17.7 | .634 |
| Jordan Hicks | Min | mr | 22 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 16 | 4 | .250 | 22.3 | .582 |
| Rich Hill* | Pit | sp | 39 | 12 | 1 | .083 | 1 | 7 | .583 | 65 | 5.4 | 9 | 4 | .444 | 81.7 | .619 |
| Yoshihisa Hirano | LAN | mr | 35 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 16 | 2 | .125 | 18.6 | .622 |
| Jeff Hoffman | Sea | sp | 26 | 24 | 2 | .083 | 1 | 12 | .500 | 109 | 4.5 | 38 | 14 | .368 | 59.0 | .577 |
| Jonathan Holder | | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 1 | .167 | 22.5 | .638 |
| Greg Holland | ChA | cl | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 1 | .200 | 24.2 | .586 |
| Grant Holmes | Cle | sp | 23 | 1 | 0 | .000 | 0 | 1 | 1.000 | 6 | 6.0 | 10 | 1 | .100 | 21.2 | .598 |
| J.J. Hoover | Bal | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 19 | 1 | .053 | 17.3 | .582 |
| Adrian Houser | Tex | sp | 26 | 6 | 0 | .000 | 0 | 2 | .333 | 26 | 4.3 | 6 | 3 | .500 | 52.5 | .625 |
| Brian Howard | | sp | 24 | 16 | 0 | .000 | 0 | 0 | .000 | 44 | 2.8 | 18 | 9 | .500 | 63.4 | .606 |
| James Hoyt | | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 2 | .333 | 18.3 | .637 |
| Dakota Hudson | | sp | 24 | 22 | 0 | .000 | 0 | 10 | .455 | 74 | 3.4 | 17 | 3 | .176 | 56.6 | .605 |
| Jared Hughes | Bos | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 14 | 5 | .357 | 17.0 | .616 |
| Danny Hultzen* | Tex | sp | 29 | 2 | 0 | .000 | 0 | 0 | .000 | 4 | 2.0 | 1 | 1 | 1.000 | 75.0 | .593 |
| Tommy Hunter | Phi | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 12.7 | .803 |
| Raisel Iglesias | Col | cl | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 33 | 6 | .182 | 20.2 | .621 |
| Cole Irvin* | | sp | 25 | 5 | 0 | .000 | 0 | 2 | .400 | 7 | 1.4 | 9 | 5 | .556 | 32.9 | .620 |
| Luke Jackson | KC | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 34 | 4 | .118 | 21.1 | .601 |
| Josh James | ChN | sp | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 26.0 | .788 |
| Kenley Jansen | | cl | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 0 | .000 | 18.3 | .640 |
| Jeremy Jeffress | | cl | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 0 | .000 | 19.8 | .606 |
| Dan Jennings* | | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 0 | .000 | 18.5 | .629 |
| Joe Jimenez | KC | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 19 | 5 | .263 | 16.5 | .625 |
| Brian Johnson* | Mil | sp | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 0 | .000 | 37.0 | .622 |
| D.J. Johnson | ChA | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 1 | .167 | 23.1 | .593 |
| Tyler B. Johnson | ChA | mr | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 0 | .000 | 27.1 | .604 |
| Jake Junis | LAN | sp | 26 | 33 | 0 | .000 | 0 | 23 | .697 | 112 | 3.4 | 21 | 3 | .143 | 99.7 | .662 |
| Tommy Kahnle | LAA | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 23 | 4 | .174 | 23.8 | .612 |
| Rob Kaminsky* | Bal | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 10 | 5 | .500 | 15.5 | .574 |
| James Karinchak | Tex | mr | 23 | 1 | 0 | .000 | 0 | 0 | .000 | 6 | 6.0 | 17 | 6 | .353 | 20.2 | .539 |
| Anthony Kay* | | sp | 24 | 13 | 0 | .000 | 0 | 4 | .308 | 67 | 5.2 | 13 | 5 | .385 | 75.5 | .585 |
| Keone Kela | | cl | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 4 | .444 | 21.3 | .640 |
| Brad Keller | ChA | sp | 23 | 33 | 1 | .030 | 1 | 15 | .455 | 122 | 3.7 | 17 | 4 | .235 | 86.6 | .630 |
| Brian Keller | Tex | sp | 25 | 1 | 0 | .000 | 0 | 0 | .000 | 4 | 4.0 | 0 | 0 | .000 | 90.0 | .611 |
| Kyle Keller | NYN | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 25 | 7 | .280 | 21.1 | .588 |
| Mitch Keller | NYN | sp | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 21.3 | .635 |
| Shawn Kelley | Pit | mr | 35 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 10 | 0 | .000 | 13.8 | .666 |
| Joe Kelly | Mil | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 33 | 10 | .303 | 19.7 | .597 |
| Merrill Kelly | Bos | sp | 30 | 11 | 0 | .000 | 0 | 5 | .455 | 65 | 5.9 | 8 | 2 | .250 | 63.1 | .635 |
| Ian Kennedy | | sp | 34 | 25 | 0 | .000 | 0 | 9 | .360 | 110 | 4.4 | 17 | 7 | .412 | 81.5 | .632 |
| Clayton Kershaw* | NYA | sp | 31 | 28 | 1 | .036 | 0 | 16 | .571 | 132 | 4.7 | 15 | 7 | .467 | 94.9 | .661 |
| Dallas Keuchel* | ChN | sp | 31 | 22 | 4 | .182 | 2 | 14 | .636 | 97 | 4.4 | 9 | 3 | .333 | 97.7 | .638 |
| Yusei Kikuchi* | ChA | sp | 28 | 33 | 0 | .000 | 0 | 15 | .455 | 114 | 3.5 | 19 | 9 | .474 | 92.1 | .612 |
| Craig Kimbrel | Tor | cl | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 2 | .500 | 25.6 | .600 |
| Michael King | Tex | sp | 24 | 10 | 0 | .000 | 0 | 7 | .700 | 47 | 4.7 | 6 | 2 | .333 | 89.9 | .630 |
| Nick Kingham | Hou | sp | 27 | 10 | 0 | .000 | 0 | 5 | .500 | 34 | 3.4 | 37 | 14 | .378 | 22.8 | .635 |
| Brandon Kintzler | Col | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 10 | 5 | .500 | 17.2 | .615 |
| Andrew Kittredge | | mr | 29 | 1 | 0 | .000 | 0 | 1 | 1.000 | 10 | 10.0 | 2 | 1 | .500 | 42.0 | .655 |
| Corey Kluber | SF | sp | 33 | 14 | 1 | .071 | 0 | 8 | .571 | 52 | 3.7 | 6 | 2 | .333 | 89.1 | .680 |
| Adam Kolarek* | Det | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 13 | 3 | .231 | 25.1 | .604 |
| Michael Kopech | SF | sp | 23 | 2 | 0 | .000 | 0 | 0 | .000 | 12 | 6.0 | 3 | 1 | .333 | 74.3 | .601 |
| Dean Kremer | Cin | sp | 23 | 5 | 0 | .000 | 0 | 1 | .200 | 5 | 1.0 | 5 | 5 | 1.000 | 83.7 | .580 |
| Brady Lail | Hou | mr | 25 | 1 | 0 | .000 | 0 | 0 | .000 | 2 | 2.0 | 47 | 21 | .447 | 17.9 | .591 |
| Peter Lambert | ChA | sp | 22 | 8 | 1 | .125 | 1 | 5 | .625 | 45 | 5.6 | 3 | 2 | .667 | 90.9 | .651 |
| Dinelson Lamet | KC | sp | 26 | 14 | 0 | .000 | 0 | 9 | .643 | 42 | 3.0 | 8 | 2 | .250 | 91.4 | .592 |
| Eric Lauer* | | sp | 24 | 25 | 0 | .000 | 0 | 10 | .400 | 113 | 4.5 | 23 | 4 | .174 | 73.4 | .596 |
| Derek Law | Cin | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 24 | 8 | .333 | 19.7 | .606 |
| Tommy Layne* | NYA | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 4 | .500 | 16.6 | .632 |
| Mike Leake | Cin | sp | 31 | 28 | 1 | .036 | 1 | 14 | .500 | 141 | 5.0 | 19 | 9 | .474 | 98.0 | .680 |
| Wade LeBlanc* | Pit | sp | 34 | 10 | 0 | .000 | 0 | 5 | .500 | 61 | 6.1 | 4 | 1 | .250 | 64.2 | .638 |
| Jose Leclerc | LAA | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 1 | .167 | 21.7 | .594 |
| Luke Leftwich | Det | mr | 25 | 1 | 0 | .000 | 0 | 0 | .000 | 6 | 6.0 | 15 | 6 | .400 | 24.9 | .614 |
| Dominic Leone | Tam | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 28 | 7 | .250 | 22.4 | .625 |
| Jon Lester* | | sp | 35 | 30 | 1 | .033 | 0 | 17 | .567 | 155 | 5.2 | 20 | 8 | .400 | 92.6 | .632 |
| Zack Littell | Tam | sp | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 13 | 4 | .308 | 19.8 | .615 |
| Ben Lively | Was | sp | 27 | 21 | 0 | .000 | 0 | 8 | .381 | 105 | 5.0 | 6 | 1 | .167 | 87.6 | .624 |
| Jonathan Loaisiga | Ari | sp | 24 | 13 | 0 | .000 | 0 | 6 | .462 | 57 | 4.4 | 14 | 3 | .214 | 59.4 | .654 |
| Jorge Lopez | SD | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 21.3 | .671 |
| Pablo Lopez | Tex | sp | 23 | 16 | 0 | .000 | 0 | 8 | .500 | 64 | 4.0 | 15 | 7 | .467 | 96.2 | .645 |
| Reynaldo Lopez | Bos | sp | 25 | 7 | 0 | .000 | 0 | 3 | .429 | 27 | 3.9 | 3 | 2 | .667 | 94.3 | .605 |
| Yoan Lopez | | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 35 | 8 | .229 | 20.4 | .605 |
| Michael Lorenzen | Cin | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 27 | 13 | .481 | 24.1 | .606 |
| Aaron Loup* | Cin | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 1 | 0 | .000 | 21.0 | .610 |
| Richard Lovelady* | Cle | mr | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 29 | 15 | .517 | 24.6 | .629 |
| Joey Lucchesi* | Ari | sp | 26 | 31 | 0 | .000 | 0 | 15 | .484 | 127 | 4.1 | 13 | 3 | .231 | 94.9 | .613 |
| Seth Lugo | NYN | mr | 29 | 32 | 0 | .000 | 0 | 13 | .406 | 122 | 3.8 | 25 | 7 | .280 | 92.8 | .639 |
| Jesus Luzardo* | | sp | 21 | 6 | 0 | .000 | 0 | 4 | .667 | 24 | 4.0 | 6 | 1 | .167 | 45.9 | .638 |
| Jordan Lyles | Phi | mr | 28 | 18 | 0 | .000 | 0 | 11 | .611 | 93 | 5.2 | 10 | 0 | .000 | 97.6 | .605 |
| Lance Lynn | | sp | 32 | 8 | 0 | .000 | 0 | 4 | .500 | 43 | 5.4 | 8 | 4 | .500 | 80.9 | .617 |
| Kenta Maeda | Min | sp | 31 | 34 | 0 | .000 | 0 | 14 | .412 | 155 | 4.6 | 15 | 8 | .533 | 87.7 | .641 |
| Tyler Mahle | Ari | sp | 24 | 5 | 0 | .000 | 0 | 3 | .600 | 17 | 3.4 | 3 | 1 | .333 | 86.0 | .619 |
| Kazuhisa Makita | NYA | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 18 | 4 | .222 | 21.5 | .633 |
| German Marquez | Bos | sp | 24 | 32 | 2 | .063 | 1 | 16 | .500 | 183 | 5.7 | 17 | 13 | .765 | 92.0 | .639 |
| Evan Marshall | | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 0 | .000 | 17.7 | .642 |
| Brett Martin* | Atl | sp | 24 | 32 | 1 | .031 | 1 | 16 | .500 | 125 | 3.9 | 19 | 5 | .263 | 91.7 | .627 |
| Chris Martin | | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 2 | .133 | 19.0 | .647 |
| Cody Martin | SD | sp | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 1 | .500 | 26.0 | .577 |
| Corbin Martin | StL | sp | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 1 | 0 | .000 | 26.5 | .612 |
| Carlos Martinez | Sea | sp | 27 | 17 | 0 | .000 | 0 | 10 | .588 | 70 | 4.1 | 19 | 7 | .368 | 102.4 | .603 |
| Bryan Mata | Oak | sp | 20 | 3 | 0 | .000 | 0 | 1 | .333 | 11 | 3.7 | 11 | 5 | .455 | 40.8 | .513 |
| Phil Maton | ChN | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 5 | .417 | 19.0 | .622 |
| Steven Matz* | Mia | sp | 28 | 14 | 0 | .000 | 0 | 6 | .429 | 45 | 3.2 | 13 | 5 | .385 | 95.8 | .613 |
| Dustin May | Bos | sp | 21 | 1 | 0 | .000 | 0 | 1 | 1.000 | 2 | 2.0 | 1 | 0 | .000 | 92.0 | .674 |
| Trevor May | Sea | mr | 29 | 8 | 0 | .000 | 0 | 0 | .000 | 29 | 3.6 | 36 | 10 | .278 | 27.2 | .568 |
| Mike Mayers | StL | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 5.0 | .600 |
| Tim Mayza* | Atl | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 1 | .125 | 20.0 | .621 |
| Brendan McCurry | ChN | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 1 | .167 | 26.4 | .656 |
| Jake McGee* | Tor | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 3 | .600 | 23.2 | .612 |
| Collin McHugh | | sp | 32 | 26 | 0 | .000 | 0 | 13 | .500 | 103 | 4.0 | 11 | 3 | .273 | 90.6 | .641 |
| John Means* | | sp | 26 | 10 | 0 | .000 | 0 | 6 | .600 | 59 | 5.9 | 11 | 4 | .364 | 45.7 | .640 |
| Adonis Medina | | sp | 22 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 2 | .182 | 31.1 | .583 |
| Adalberto Mejia* | | sp | 26 | 5 | 0 | .000 | 0 | 2 | .400 | 21 | 4.2 | 1 | 0 | .000 | 82.2 | .647 |
| Mark Melancon | | cl | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 24 | 4 | .167 | 16.9 | .643 |
| Keury Mella | Sea | sp | 25 | 20 | 2 | .100 | 0 | 8 | .400 | 68 | 3.4 | 37 | 12 | .324 | 53.5 | .588 |
| Conner Menez* | LAA | sp | 24 | 5 | 0 | .000 | 0 | 0 | .000 | 21 | 4.2 | 6 | 2 | .333 | 95.8 | .562 |
| Daniel Mengden | Col | sp | 26 | 7 | 0 | .000 | 0 | 3 | .429 | 30 | 4.3 | 4 | 2 | .500 | 76.4 | .613 |
| Ryan Merritt* | Atl | sp | 27 | 33 | 0 | .000 | 0 | 18 | .545 | 129 | 3.9 | 14 | 6 | .429 | 85.4 | .673 |
| Keynan Middleton | Bal | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 38 | 7 | .184 | 19.8 | .610 |
| Miles Mikolas | Col | sp | 30 | 38 | 1 | .026 | 0 | 20 | .526 | 207 | 5.4 | 17 | 2 | .118 | 91.4 | .666 |
| Wade Miley* | SD | sp | 32 | 8 | 0 | .000 | 0 | 4 | .500 | 43 | 5.4 | 6 | 2 | .333 | 94.0 | .624 |
| Andrew Miller* | Pit | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 26 | 5 | .192 | 15.8 | .630 |
| Justin Miller | Det | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 6 | .545 | 22.6 | .653 |
| Shelby Miller | Atl | sp | 28 | 11 | 0 | .000 | 0 | 5 | .455 | 27 | 2.5 | 5 | 2 | .400 | 82.0 | .619 |
| Alec Mills | Cin | sp | 27 | 14 | 0 | .000 | 0 | 5 | .357 | 51 | 3.6 | 8 | 2 | .250 | 83.6 | .631 |
| Juan Minaya | Atl | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 26 | 7 | .269 | 20.4 | .596 |
| Mike Minor* | ChN | sp | 31 | 30 | 0 | .000 | 0 | 12 | .400 | 154 | 5.1 | 14 | 4 | .286 | 90.0 | .653 |
| A.J. Minter* | Phi | cl | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 20 | 5 | .250 | 18.9 | .604 |
| Rafael Montero | NYA | sp | 28 | 1 | 0 | .000 | 0 | 0 | .000 | 4 | 4.0 | 0 | 0 | .000 | 109.0 | .633 |
| Jordan Montgomery* | Cle | sp | 26 | 3 | 0 | .000 | 0 | 1 | .333 | 8 | 2.7 | 1 | 0 | .000 | 72.7 | .670 |
| Mike Montgomery* | Sea | mr | 29 | 8 | 0 | .000 | 0 | 4 | .500 | 50 | 6.3 | 3 | 0 | .000 | 97.9 | .605 |
| Brian Moran* | Tor | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 1 | .500 | 22.7 | .577 |
| Adam Morgan* | Phi | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 1 | .500 | 26.5 | .629 |
| Reyes Moronta | NYA | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 20 | 6 | .300 | 21.8 | .594 |
| Charlie Morton | | sp | 35 | 33 | 0 | .000 | 0 | 14 | .424 | 153 | 4.6 | 17 | 8 | .471 | 89.1 | .623 |
| Gabriel Moya* | KC | mr | 24 | 14 | 0 | .000 | 0 | 1 | .071 | 55 | 3.9 | 19 | 9 | .474 | 52.8 | .631 |
| Kyle Muller* | StL | sp | 21 | 16 | 0 | .000 | 0 | 3 | .188 | 54 | 3.4 | 8 | 3 | .375 | 86.9 | .620 |
| Andres Munoz | Tex | mr | 20 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 44 | 10 | .227 | 21.4 | .520 |
| Patrick Murphy | | sp | 24 | 1 | 0 | .000 | 0 | 0 | .000 | 2 | 2.0 | 2 | 0 | .000 | 90.0 | .611 |
| Joe Musgrove | ChA | sp | 26 | 32 | 1 | .031 | 1 | 19 | .594 | 115 | 3.6 | 19 | 2 | .105 | 94.1 | .666 |
| Carlos Navas | Atl | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 28 | 10 | .357 | 25.5 | .638 |
| Nick Neidert | | sp | 22 | 28 | 1 | .036 | 1 | 10 | .357 | 105 | 3.8 | 17 | 9 | .529 | 76.8 | .646 |
| Jimmy Nelson | SD | sp | 30 | 1 | 0 | .000 | 0 | 0 | .000 | 6 | 6.0 | 0 | 0 | .000 | 97.0 | .598 |
| Nick Nelson | Was | sp | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 7 | 3 | .429 | 27.2 | .581 |
| Hector Neris | Phi | cl | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 19 | 5 | .263 | 19.5 | .625 |
| Pat Neshek | Phi | mr | 38 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 1 | .333 | 17.0 | .687 |
| Sean Newcomb* | Oak | sp | 26 | 32 | 1 | .031 | 1 | 14 | .438 | 122 | 3.8 | 21 | 5 | .238 | 94.7 | .590 |
| Juan Nicasio | NYA | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 20 | 6 | .300 | 20.4 | .627 |
| Stephen Nogosek | Oak | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 18.3 | .618 |
| Aaron Nola | Phi | sp | 26 | 35 | 0 | .000 | 0 | 25 | .714 | 189 | 5.4 | 16 | 2 | .125 | 97.8 | .649 |
| Bud Norris | NYN | cl | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 3 | .500 | 17.6 | .619 |
| Daniel Norris* | Mia | sp | 26 | 1 | 0 | .000 | 0 | 0 | .000 | 4 | 4.0 | 2 | 1 | .500 | 94.0 | .617 |
| Ivan Nova | Mil | sp | 32 | 32 | 0 | .000 | 0 | 19 | .594 | 127 | 4.0 | 15 | 4 | .267 | 89.4 | .658 |
| Darren O'Day | Bos | mr | 36 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 26.2 | .679 |
| Trevor Oaks | Bal | sp | 26 | 6 | 0 | .000 | 0 | 5 | .833 | 21 | 3.5 | 1 | 0 | .000 | 91.2 | .636 |
| Scott Oberg | ChA | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 7 | 3 | .429 | 19.9 | .626 |
| Jake Odorizzi | SD | sp | 29 | 30 | 1 | .033 | 1 | 16 | .533 | 118 | 3.9 | 12 | 3 | .250 | 94.8 | .635 |
| Seung-hwan Oh | Pit | mr | 36 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 3 | .273 | 16.6 | .646 |
| Tyler Olson* | Cin | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 16 | 1 | .063 | 13.8 | .625 |
| Luis Ortiz | NYN | sp | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 5 | .333 | 15.7 | .646 |
| Roberto Osuna | Mia | cl | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 1 | .111 | 15.5 | .672 |
| Dan Otero | LAA | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 24 | 1 | .042 | 19.4 | .710 |
| Travis Ott* | NYN | mr | 24 | 19 | 0 | .000 | 0 | 11 | .579 | 77 | 4.1 | 16 | 4 | .250 | 103.7 | .588 |
| Adam Ottavino | | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 0 | .000 | 19.8 | .583 |
| Chris Paddack | KC | sp | 23 | 33 | 0 | .000 | 0 | 12 | .364 | 116 | 3.5 | 18 | 8 | .444 | 80.7 | .652 |
| Emilio Pagan | Cle | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 21 | 5 | .238 | 20.6 | .619 |
| Joe Palumbo* | NYN | sp | 24 | 8 | 0 | .000 | 0 | 0 | .000 | 30 | 3.8 | 7 | 3 | .429 | 73.5 | .575 |
| Edward Paredes* | Hou | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 2 | .222 | 16.4 | .616 |
| Blake Parker | LAA | cl | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 14 | 4 | .286 | 21.3 | .601 |
| David Paulino | | sp | 25 | 3 | 0 | .000 | 0 | 2 | .667 | 25 | 8.3 | 0 | 0 | .000 | 26.4 | .691 |
| James Paxton* | Sea | sp | 30 | 18 | 0 | .000 | 0 | 13 | .722 | 58 | 3.2 | 11 | 8 | .727 | 97.2 | .650 |
| James Pazos* | | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 1 | .200 | 19.7 | .589 |
| Brad Peacock | | mr | 31 | 18 | 0 | .000 | 0 | 10 | .556 | 93 | 5.2 | 14 | 4 | .286 | 89.1 | .625 |
| Felix Pena | | sp | 29 | 14 | 0 | .000 | 0 | 7 | .500 | 70 | 5.0 | 7 | 2 | .286 | 88.3 | .614 |
| Freddy Peralta | Oak | sp | 23 | 29 | 0 | .000 | 0 | 12 | .414 | 146 | 5.0 | 19 | 4 | .211 | 95.1 | .586 |
| Luis Perdomo | | sp | 26 | 7 | 0 | .000 | 0 | 3 | .429 | 36 | 5.1 | 6 | 2 | .333 | 91.1 | .625 |
| Cionel Perez* | NYN | mr | 23 | 33 | 0 | .000 | 0 | 14 | .424 | 111 | 3.4 | 13 | 7 | .538 | 98.6 | .599 |
| Franklin Perez | Sea | sp | 21 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 19.0 | .421 |
| Martin Perez* | LAN | sp | 28 | 32 | 1 | .031 | 1 | 13 | .406 | 113 | 3.5 | 25 | 20 | .800 | 89.5 | .622 |
| Oliver Perez* | Det | mr | 37 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 19 | 5 | .263 | 16.7 | .609 |
| David Peterson | LAA | mr | 29 | 1 | 0 | .000 | 0 | 0 | .000 | 11 | 11.0 | 6 | 0 | .000 | 23.7 | .641 |
| Tim Peterson | Atl | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 13.0 | .615 |
| Yusmeiro Petit | | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 22 | 4 | .182 | 20.5 | .685 |
| Michael Pineda | Pit | sp | 30 | 20 | 0 | .000 | 0 | 8 | .400 | 82 | 4.1 | 4 | 0 | .000 | 79.6 | .657 |
| Nick Pivetta | | sp | 26 | 23 | 0 | .000 | 0 | 8 | .348 | 108 | 4.7 | 20 | 7 | .350 | 86.5 | .631 |
| Colin Poche* | Col | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 22 | 5 | .227 | 22.8 | .592 |
| Drew Pomeranz* | SD | sp | 30 | 31 | 0 | .000 | 0 | 11 | .355 | 124 | 4.0 | 33 | 11 | .333 | 78.3 | .595 |
| Cody Ponce | SD | sp | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 24.5 | .714 |
| Daniel Poncedeleon | StL | sp | 27 | 1 | 0 | .000 | 0 | 0 | .000 | 3 | 3.0 | 24 | 5 | .208 | 23.1 | .580 |
| Rick Porcello | Bal | sp | 30 | 32 | 0 | .000 | 0 | 18 | .563 | 88 | 2.8 | 20 | 4 | .200 | 93.4 | .654 |
| Alex Powers | Cin | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 20.2 | .616 |
| Bobby Poyner* | LAN | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 7 | .467 | 19.8 | .645 |
| Ryan Pressly | Min | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 0 | .000 | 21.3 | .615 |
| David Price* | Tor | sp | 33 | 37 | 0 | .000 | 0 | 15 | .405 | 182 | 4.9 | 34 | 13 | .382 | 86.9 | .640 |
| Austin Pruitt | Atl | mr | 29 | 7 | 0 | .000 | 0 | 4 | .571 | 46 | 6.6 | 15 | 9 | .600 | 40.3 | .677 |
| Cal Quantrill | NYN | sp | 24 | 5 | 0 | .000 | 0 | 2 | .400 | 21 | 4.2 | 3 | 0 | .000 | 91.2 | .636 |
| Jose Quijada* | Tor | mr | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 4 | .500 | 30.8 | .588 |
| Jose Quintana* | Col | sp | 30 | 39 | 0 | .000 | 0 | 18 | .462 | 207 | 5.3 | 26 | 10 | .385 | 86.1 | .624 |
| Noe Ramirez | Was | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 0 | .000 | 21.6 | .608 |
| Edubray Ramos | Tor | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 26 | 8 | .308 | 22.2 | .629 |
| Robbie Ray* | Oak | sp | 27 | 30 | 0 | .000 | 0 | 17 | .567 | 121 | 4.0 | 16 | 4 | .250 | 97.3 | .590 |
| Sean Reid-Foley | KC | sp | 23 | 4 | 0 | .000 | 0 | 1 | .250 | 7 | 1.8 | 20 | 4 | .200 | 31.0 | .606 |
| Alex Reyes | Tex | sp | 24 | 11 | 0 | .000 | 0 | 3 | .273 | 54 | 4.9 | 15 | 8 | .533 | 81.5 | .576 |
| Gerardo Reyes | Tex | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 21.0 | .595 |
| Garrett Richards | Bal | sp | 31 | 32 | 1 | .031 | 1 | 9 | .281 | 130 | 4.1 | 28 | 7 | .250 | 86.7 | .610 |
| Trevor Richards | | sp | 26 | 23 | 0 | .000 | 0 | 10 | .435 | 103 | 4.5 | 11 | 4 | .364 | 85.9 | .604 |
| Tanner Roark | Min | sp | 32 | 26 | 0 | .000 | 0 | 12 | .462 | 103 | 4.0 | 19 | 3 | .158 | 92.0 | .629 |
| David Robertson | Mil | cl | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 1 | 1 | 1.000 | 17.5 | .605 |
| Fernando Rodney | | cl | 42 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 30 | 3 | .100 | 19.5 | .586 |
| Carlos Rodon* | Col | sp | 26 | 9 | 0 | .000 | 0 | 3 | .333 | 46 | 5.1 | 6 | 3 | .500 | 82.7 | .612 |
| Dereck Rodriguez | NYA | sp | 27 | 32 | 1 | .031 | 1 | 16 | .500 | 185 | 5.8 | 16 | 7 | .438 | 89.0 | .629 |
| Eduardo Rodriguez* | | sp | 26 | 32 | 0 | .000 | 0 | 11 | .344 | 143 | 4.5 | 28 | 12 | .429 | 91.4 | .614 |
| Jefry Rodriguez | Tor | sp | 25 | 17 | 0 | .000 | 0 | 7 | .412 | 83 | 4.9 | 14 | 3 | .214 | 80.3 | .562 |
| Richard Rodriguez | Mia | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 30 | 9 | .300 | 18.3 | .637 |
| Chaz Roe | | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 21 | 10 | .476 | 20.0 | .583 |
| Taylor Rogers* | | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 21 | 3 | .143 | 14.8 | .641 |
| Fernando Romero | NYN | sp | 24 | 5 | 0 | .000 | 0 | 3 | .600 | 25 | 5.0 | 1 | 0 | .000 | 95.4 | .639 |
| JoJo Romero* | | sp | 22 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 36.0 | .528 |
| Hector Rondon | Mia | cl | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 10 | 3 | .300 | 18.8 | .653 |
| Trevor Rosenthal | SD | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 4 | .333 | 22.3 | .619 |
| Joe Ross | Mia | sp | 26 | 4 | 0 | .000 | 0 | 0 | .000 | 6 | 1.5 | 0 | 0 | .000 | 83.3 | .613 |
| Robbie Ross* | SD | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 4 | 1.000 | 22.5 | .578 |
| Tyson Ross | SF | sp | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 1 | .250 | 20.0 | .628 |
| Zac Rosscup* | Mia | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 0 | .000 | 17.4 | .628 |
| Kyle Ryan* | ChN | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 4 | .267 | 18.5 | .607 |
| Hyun-jin Ryu* | LAN | sp | 32 | 23 | 0 | .000 | 0 | 7 | .304 | 89 | 3.9 | 21 | 4 | .190 | 81.9 | .644 |
| CC Sabathia* | Phi | sp | 38 | 10 | 0 | .000 | 0 | 5 | .500 | 44 | 4.4 | 5 | 0 | .000 | 92.2 | .613 |
| Danny Salazar | Tor | sp | 29 | 2 | 0 | .000 | 0 | 2 | 1.000 | 6 | 3.0 | 0 | 0 | .000 | 97.5 | .646 |
| Chris Sale* | Det | sp | 30 | 26 | 3 | .115 | 1 | 20 | .769 | 144 | 5.5 | 12 | 4 | .333 | 105.8 | .670 |
| Jeff Samardzija | Pit | sp | 34 | 23 | 1 | .043 | 1 | 14 | .609 | 107 | 4.7 | 13 | 3 | .231 | 94.5 | .652 |
| Aaron Sanchez | Tor | sp | 26 | 35 | 0 | .000 | 0 | 14 | .400 | 180 | 5.1 | 22 | 6 | .273 | 87.1 | .599 |
| Anibal Sanchez | SF | sp | 35 | 37 | 0 | .000 | 0 | 14 | .378 | 178 | 4.8 | 24 | 7 | .292 | 82.6 | .627 |
| Dennis Santana | Ari | sp | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 20 | 8 | .400 | 19.8 | .606 |
| Josh Sborz | Min | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 2 | .400 | 22.2 | .578 |
| Kit Scheetz* | Tam | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 27 | 11 | .407 | 24.3 | .634 |
| Max Scherzer | Det | sp | 34 | 29 | 6 | .207 | 3 | 22 | .759 | 149 | 5.1 | 6 | 0 | .000 | 110.9 | .647 |
| John Schreiber | Atl | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 2 | .222 | 23.7 | .640 |
| Tanner Scott* | NYN | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 17 | 6 | .353 | 19.1 | .576 |
| Sam Selman* | Tex | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 16 | 3 | .188 | 30.9 | .521 |
| Antonio Senzatela | | sp | 24 | 32 | 0 | .000 | 0 | 14 | .438 | 109 | 3.4 | 31 | 10 | .323 | 85.4 | .610 |
| Mike Shawaryn | Tam | sp | 24 | 23 | 0 | .000 | 0 | 12 | .522 | 74 | 3.2 | 11 | 6 | .545 | 89.6 | .622 |
| Justus Sheffield* | Ari | sp | 23 | 21 | 0 | .000 | 0 | 6 | .286 | 114 | 5.4 | 20 | 3 | .150 | 56.1 | .588 |
| Chandler Shepherd | Atl | sp | 26 | 13 | 0 | .000 | 0 | 6 | .462 | 43 | 3.3 | 5 | 1 | .200 | 87.6 | .658 |
| Jimmie Sherfy | Col | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 27 | 3 | .111 | 19.1 | .626 |
| Matt Shoemaker | Mil | sp | 32 | 10 | 0 | .000 | 0 | 6 | .600 | 39 | 3.9 | 6 | 4 | .667 | 89.6 | .647 |
| Logan Shore | Bal | sp | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 16.8 | .604 |
| Lucas Sims | Hou | sp | 25 | 6 | 0 | .000 | 0 | 1 | .167 | 23 | 3.8 | 42 | 13 | .310 | 22.1 | .587 |
| Tony Sipp* | NYN | mr | 35 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 2 | .167 | 19.3 | .629 |
| Tyler Skaggs* | StL | sp | 27 | 5 | 0 | .000 | 0 | 3 | .600 | 18 | 3.6 | 2 | 1 | .500 | 75.4 | .610 |
| Eric Skoglund* | LAN | sp | 26 | 5 | 0 | .000 | 0 | 4 | .800 | 29 | 5.8 | 2 | 0 | .000 | 93.6 | .626 |
| Devin Smeltzer* | Pit | sp | 23 | 4 | 0 | .000 | 0 | 3 | .750 | 25 | 6.3 | 0 | 0 | .000 | 45.2 | .644 |
| Caleb Smith* | Oak | sp | 27 | 13 | 0 | .000 | 0 | 9 | .692 | 47 | 3.6 | 16 | 2 | .125 | 55.0 | .592 |
| Carson Smith | Sea | mr | 29 | 1 | 0 | .000 | 0 | 0 | .000 | 4 | 4.0 | 25 | 14 | .560 | 21.3 | .609 |
| Joe Smith | Mil | mr | 35 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 1 | .250 | 18.2 | .651 |
| Will Smith* | Mia | cl | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 17 | 2 | .118 | 16.6 | .628 |
| Drew Smyly* | Mil | sp | 30 | 32 | 0 | .000 | 0 | 7 | .219 | 138 | 4.3 | 19 | 7 | .368 | 84.9 | .628 |
| Cy Sneed | Pit | sp | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 21.3 | .594 |
| Blake Snell* | Tor | sp | 26 | 22 | 0 | .000 | 0 | 9 | .409 | 83 | 3.8 | 16 | 5 | .313 | 87.5 | .609 |
| Chad Sobotka | LAN | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 14 | 6 | .429 | 20.3 | .562 |
| Sammy Solis* | Bal | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 38 | 16 | .421 | 16.5 | .574 |
| Joakim Soria | Phi | cl | 35 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 17 | 2 | .118 | 19.4 | .643 |
| Mike Soroka | Ari | sp | 21 | 24 | 0 | .000 | 0 | 7 | .292 | 99 | 4.1 | 14 | 4 | .286 | 84.0 | .626 |
| Craig Stammen | Mil | mr | 35 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 20 | 7 | .350 | 19.0 | .649 |
| Ryne Stanek | Oak | mr | 27 | 3 | 0 | .000 | 0 | 1 | .333 | 19 | 6.3 | 28 | 8 | .286 | 20.8 | .584 |
| Teddy Stankiewicz | Hou | sp | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 13 | 3 | .231 | 20.4 | .633 |
| Cody Stashak | Was | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 1 | .500 | 13.9 | .672 |
| Josh Staumont | NYN | mr | 25 | 12 | 0 | .000 | 0 | 5 | .417 | 72 | 6.0 | 9 | 3 | .333 | 100.9 | .552 |
| Drew Steckenrider | NYA | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 2 | .400 | 17.5 | .600 |
| Robert Stock | Atl | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 0 | .000 | 20.7 | .624 |
| Matt Strahm* | LAA | mr | 27 | 28 | 0 | .000 | 0 | 9 | .321 | 119 | 4.3 | 24 | 13 | .542 | 90.8 | .605 |
| Stephen Strasburg | NYA | sp | 30 | 32 | 0 | .000 | 0 | 20 | .625 | 163 | 5.1 | 14 | 5 | .357 | 93.6 | .634 |
| Chris Stratton | Tor | sp | 28 | 8 | 0 | .000 | 0 | 4 | .500 | 49 | 6.1 | 11 | 3 | .273 | 48.8 | .603 |
| Ross Stripling | Cin | sp | 29 | 20 | 0 | .000 | 0 | 10 | .500 | 99 | 4.9 | 8 | 3 | .375 | 72.4 | .666 |
| Marcus Stroman | SD | sp | 28 | 33 | 1 | .030 | 1 | 19 | .576 | 121 | 3.7 | 20 | 7 | .350 | 91.8 | .629 |
| Pedro Strop | Tor | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 16 | 1 | .063 | 20.7 | .625 |
| Andrew Suarez* | SF | sp | 26 | 3 | 0 | .000 | 0 | 3 | 1.000 | 12 | 4.0 | 2 | 0 | .000 | 46.9 | .613 |
| Jose Suarez* | Tam | sp | 21 | 31 | 0 | .000 | 0 | 16 | .516 | 119 | 3.8 | 20 | 8 | .400 | 92.7 | .615 |
| Ranger Suarez* | Cle | sp | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 7 | 4 | .571 | 25.8 | .606 |
| Wander Suero | Tor | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 26 | 5 | .192 | 22.7 | .598 |
| Cole Sulser | Cin | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 3 | .333 | 21.3 | .618 |
| Trey Supak | Ari | sp | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 13 | 4 | .308 | 21.9 | .586 |
| Anthony Swarzak | Col | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 28 | 4 | .143 | 20.4 | .644 |
| Noah Syndergaard | | sp | 26 | 21 | 1 | .048 | 0 | 12 | .571 | 115 | 5.5 | 12 | 3 | .250 | 76.3 | .638 |
| Jameson Taillon | Col | sp | 27 | 9 | 0 | .000 | 0 | 3 | .333 | 72 | 8.0 | 8 | 6 | .750 | 77.4 | .687 |
| Masahiro Tanaka | LAN | sp | 30 | 33 | 1 | .030 | 0 | 23 | .697 | 94 | 2.8 | 18 | 5 | .278 | 92.0 | .674 |
| Stephen Tarpley* | LAN | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 25 | 8 | .320 | 25.6 | .590 |
| Curtis Taylor | SF | mr | 23 | 33 | 0 | .000 | 0 | 8 | .242 | 120 | 3.6 | 26 | 4 | .154 | 80.0 | .609 |
| Josh Taylor* | Tex | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 28 | 8 | .286 | 19.7 | .595 |
| Julio Teheran | SD | sp | 28 | 32 | 0 | .000 | 0 | 20 | .625 | 146 | 4.6 | 16 | 3 | .188 | 95.1 | .623 |
| Ryan Tepera | Mil | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 13 | 0 | .000 | 23.5 | .619 |
| Jake Thompson | SD | sp | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 20 | 6 | .300 | 24.4 | .616 |
| Tyler Thornburg | Bal | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 26 | 5 | .192 | 17.9 | .602 |
| Trent Thornton | | sp | 25 | 10 | 0 | .000 | 0 | 4 | .400 | 68 | 6.8 | 36 | 15 | .417 | 28.8 | .648 |
| Lewis Thorpe* | KC | sp | 23 | 31 | 0 | .000 | 0 | 19 | .613 | 143 | 4.6 | 17 | 4 | .235 | 92.1 | .622 |
| Josh Tomlin | Hou | sp | 34 | 32 | 0 | .000 | 0 | 17 | .531 | 149 | 4.7 | 15 | 2 | .133 | 86.6 | .687 |
| Touki Toussaint | Tex | sp | 23 | 32 | 0 | .000 | 0 | 13 | .406 | 152 | 4.8 | 24 | 10 | .417 | 94.6 | .597 |
| Blake Treinen | Col | cl | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 2 | .222 | 20.4 | .627 |
| Andrew Triggs | Atl | sp | 30 | 3 | 0 | .000 | 0 | 1 | .333 | 10 | 3.3 | 1 | 0 | .000 | 82.3 | .640 |
| Lou Trivino | | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 18 | 5 | .278 | 22.5 | .635 |
| Duane Underwood | Tex | sp | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 22.3 | .674 |
| Jose Urena | Tam | sp | 27 | 14 | 0 | .000 | 0 | 9 | .643 | 60 | 4.3 | 13 | 6 | .462 | 91.9 | .625 |
| Julio Urias* | Oak | sp | 22 | 19 | 0 | .000 | 0 | 7 | .368 | 76 | 4.0 | 12 | 6 | .500 | 77.5 | .601 |
| Framber Valdez* | | sp | 25 | 16 | 0 | .000 | 0 | 8 | .500 | 100 | 6.3 | 11 | 4 | .364 | 74.6 | .581 |
| Andrew Vasquez* | Bos | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 4 | .267 | 25.1 | .585 |
| Felipe Vazquez* | NYA | cl | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 20 | 4 | .200 | 20.5 | .632 |
| Vince Velasquez | StL | sp | 27 | 33 | 0 | .000 | 0 | 15 | .455 | 116 | 3.5 | 18 | 7 | .389 | 89.8 | .613 |
| Drew VerHagen | Cle | mr | 28 | 1 | 0 | .000 | 0 | 0 | .000 | 7 | 7.0 | 4 | 2 | .500 | 64.5 | .636 |
| Justin Verlander | | sp | 36 | 33 | 0 | .000 | 0 | 29 | .879 | 148 | 4.5 | 5 | 2 | .400 | 104.2 | .657 |
| Stephen Villines | | mr | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 18 | 2 | .111 | 23.7 | .607 |
| Nick Vincent | StL | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 0 | .000 | 18.8 | .657 |
| Arodys Vizcaino | Cin | cl | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 1 | .333 | 25.0 | .613 |
| Michael Wacha | Bos | sp | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 2 | .167 | 25.0 | .617 |
| Jacob Waguespack | | sp | 25 | 4 | 0 | .000 | 0 | 2 | .500 | 14 | 3.5 | 4 | 0 | .000 | 85.0 | .600 |
| Bobby Wahl | Sea | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 1 | .167 | 24.9 | .610 |
| Adam Wainwright | Pit | sp | 37 | 32 | 1 | .031 | 0 | 19 | .594 | 164 | 5.1 | 10 | 4 | .400 | 93.3 | .620 |
| Marcus Walden | Mia | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 10.0 | .450 |
| Adam Warren | Sea | mr | 31 | 7 | 0 | .000 | 0 | 0 | .000 | 32 | 4.6 | 40 | 14 | .350 | 23.4 | .582 |
| Tony Watson* | Tor | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 29 | 9 | .310 | 16.5 | .657 |
| Luke Weaver | Cle | sp | 25 | 1 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 13 | 7 | .538 | 23.7 | .641 |
| Logan Webb | LAA | sp | 22 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 5.0 | .800 |
| Tyler Webb* | | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 10 | 1 | .100 | 21.3 | .641 |
| Ryan Weber | | sp | 28 | 30 | 2 | .067 | 1 | 17 | .567 | 132 | 4.4 | 20 | 3 | .150 | 87.5 | .662 |
| Patrick Weigel | Tex | sp | 24 | 26 | 0 | .000 | 0 | 6 | .231 | 145 | 5.6 | 25 | 13 | .520 | 76.8 | .580 |
| Blake Weiman* | Atl | mr | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 2 | .222 | 23.4 | .653 |
| J.B. Wendelken | | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 5 | .333 | 22.1 | .628 |
| Joey Wentz* | Ari | sp | 21 | 3 | 0 | .000 | 0 | 0 | .000 | 8 | 2.7 | 2 | 1 | .500 | 86.3 | .591 |
| Zack Wheeler | Mia | sp | 29 | 33 | 2 | .061 | 0 | 23 | .697 | 143 | 4.3 | 19 | 7 | .368 | 105.8 | .640 |
| Mitchell White | Cin | sp | 24 | 4 | 0 | .000 | 0 | 2 | .500 | 21 | 5.3 | 4 | 0 | .000 | 77.3 | .647 |
| Forrest Whitley | Atl | sp | 21 | 22 | 0 | .000 | 0 | 10 | .455 | 108 | 4.9 | 13 | 5 | .385 | 89.2 | .598 |
| Rowan Wick | Was | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 1 | .167 | 22.7 | .570 |
| Taylor Widener | Ari | sp | 24 | 5 | 0 | .000 | 0 | 1 | .200 | 15 | 3.0 | 3 | 2 | .667 | 99.2 | .560 |
| Brad Wieck* | StL | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 27 | 6 | .222 | 19.5 | .574 |
| Aaron Wilkerson | KC | sp | 30 | 11 | 0 | .000 | 0 | 2 | .182 | 35 | 3.2 | 11 | 4 | .364 | 77.9 | .592 |
| Taylor Williams | StL | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 19 | 6 | .316 | 18.5 | .605 |
| Trevor Williams | Tam | sp | 27 | 27 | 0 | .000 | 0 | 11 | .407 | 108 | 4.0 | 19 | 7 | .368 | 89.2 | .633 |
| Bryse Wilson | StL | sp | 21 | 32 | 0 | .000 | 0 | 22 | .688 | 118 | 3.7 | 16 | 3 | .188 | 92.4 | .630 |
| Justin Wilson* | Det | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 2 | .333 | 20.1 | .591 |
| Dan Winkler | LAN | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 19 | 6 | .316 | 19.8 | .597 |
| Matt Wisler | Tam | sp | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 5 | .455 | 17.9 | .621 |
| Nick Wittgren | StL | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 20 | 2 | .100 | 20.7 | .652 |
| Alex Wood* | | sp | 28 | 11 | 0 | .000 | 0 | 6 | .545 | 45 | 4.1 | 7 | 0 | .000 | 92.3 | .613 |
| Hunter Wood | | mr | 25 | 10 | 0 | .000 | 0 | 2 | .200 | 31 | 3.1 | 7 | 2 | .286 | 82.6 | .643 |
| Jake Woodford | | sp | 22 | 16 | 0 | .000 | 0 | 1 | .063 | 58 | 3.6 | 15 | 8 | .533 | 81.3 | .578 |
| Brandon Woodruff | ChA | sp | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 16.2 | .593 |
| Jordan Yamamoto | | sp | 23 | 13 | 0 | .000 | 0 | 3 | .231 | 43 | 3.3 | 10 | 5 | .500 | 60.8 | .622 |
| Ryan Yarbrough* | SD | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 32 | 12 | .375 | 22.4 | .620 |
| Kirby Yates | Bos | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 21 | 4 | .190 | 19.5 | .618 |
| Huascar Ynoa | Ari | sp | 21 | 2 | 0 | .000 | 0 | 0 | .000 | 10 | 5.0 | 4 | 3 | .750 | 74.5 | .490 |
| Daniel Zamora* | Cin | mr | 26 | 1 | 0 | .000 | 0 | 0 | .000 | 2 | 2.0 | 22 | 4 | .182 | 22.8 | .587 |
| T.J. Zeuch | Cin | sp | 23 | 3 | 0 | .000 | 0 | 2 | .667 | 12 | 4.0 | 1 | 0 | .000 | 77.7 | .674 |
| Jordan Zimmermann | Pit | sp | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 10.0 | .600 |
| Relief |
| Name | Team | P | Age | SVO | S | SV% | BS | BS% | HLD | IR | IRS | IR% | G | GR | GF | PCH/G | STR% |
| Austin L. Adams | Cle | mr | 28 | 3 | 1 | .333 | 2 | .667 | 6 | 26 | 7 | .269 | 37 | 37 | 11 | 24.2 | .554 |
| Chance Adams | KC | sp | 24 | 2 | 1 | .500 | 1 | .500 | 2 | 7 | 3 | .429 | 6 | 6 | 3 | 25.3 | .625 |
| Dario Agrazal | LAA | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 8 | 0 | 0 | 88.3 | .640 |
| Jorge Alcala | Tor | sp | 23 | 1 | 0 | .000 | 0 | .000 | 2 | 4 | 0 | .000 | 7 | 7 | 2 | 18.6 | .608 |
| Sandy Alcantara | Bos | sp | 23 | 3 | 2 | .667 | 1 | .333 | 2 | 10 | 4 | .400 | 19 | 19 | 12 | 22.6 | .557 |
| Scott Alexander* | LAA | mr | 29 | 3 | 2 | .667 | 0 | .000 | 10 | 14 | 5 | .357 | 25 | 25 | 7 | 19.1 | .575 |
| Kolby Allard* | | sp | 21 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 35 | 4 | 0 | 80.1 | .613 |
| Cody Allen | Bal | cl | 30 | 20 | 13 | .650 | 7 | .350 | 18 | 50 | 11 | .220 | 85 | 85 | 34 | 17.2 | .624 |
| Dan Altavilla | LAN | mr | 26 | 2 | 2 | 1.000 | 0 | .000 | 0 | 15 | 7 | .467 | 22 | 22 | 8 | 25.0 | .597 |
| Jose Alvarado* | Ari | mr | 24 | 6 | 6 | 1.000 | 0 | .000 | 10 | 16 | 1 | .063 | 41 | 41 | 16 | 21.9 | .611 |
| Jose Alvarez* | Min | mr | 30 | 5 | 1 | .200 | 4 | .800 | 10 | 30 | 8 | .267 | 54 | 54 | 20 | 18.6 | .589 |
| Yadier Alvarez | Hou | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 6 | 1 | .167 | 5 | 5 | 3 | 13.2 | .591 |
| Adbert Alzolay | Oak | sp | 24 | 0 | 0 | .000 | 0 | .000 | 1 | 6 | 2 | .333 | 13 | 6 | 2 | 68.1 | .599 |
| Brett Anderson* | Sea | sp | 31 | 3 | 0 | .000 | 2 | .667 | 0 | 11 | 2 | .182 | 48 | 14 | 4 | 69.2 | .631 |
| Ian Anderson | Tam | sp | 21 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 90.0 | .566 |
| Justin Anderson | Tex | mr | 26 | 1 | 1 | 1.000 | 0 | .000 | 0 | 2 | 1 | .500 | 3 | 3 | 3 | 16.3 | .633 |
| Nick Anderson | Tex | mr | 28 | 11 | 8 | .727 | 3 | .273 | 10 | 66 | 16 | .242 | 76 | 76 | 27 | 19.6 | .594 |
| Shaun Anderson | SF | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 1 | 1.000 | 14 | 4 | 0 | 72.1 | .621 |
| Tanner Anderson | Mil | mr | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 20 | 0 | 0 | 92.0 | .643 |
| Tyler Anderson* | Bos | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 6 | 0 | 0 | 92.0 | .643 |
| Victor Arano | Tex | mr | 24 | 1 | 1 | 1.000 | 0 | .000 | 3 | 7 | 2 | .286 | 11 | 11 | 6 | 17.9 | .629 |
| Chris Archer | SD | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 27 | 0 | 0 | 90.3 | .637 |
| Rogelio Armenteros | Sea | sp | 25 | 5 | 2 | .400 | 0 | .000 | 2 | 19 | 3 | .158 | 40 | 20 | 8 | 58.0 | .585 |
| Shawn Armstrong | | mr | 28 | 4 | 3 | .750 | 1 | .250 | 9 | 26 | 9 | .346 | 46 | 46 | 15 | 22.5 | .610 |
| Jake Arrieta | Min | sp | 33 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 25 | 0 | 0 | 88.3 | .596 |
| Luis Avilan* | | mr | 29 | 1 | 0 | .000 | 1 | 1.000 | 5 | 8 | 2 | .250 | 16 | 16 | 1 | 17.2 | .640 |
| Michel Baez | Tex | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 9 | 1 | .111 | 20 | 9 | 6 | 58.3 | .580 |
| Pedro Baez | Min | mr | 31 | 5 | 2 | .400 | 2 | .400 | 18 | 37 | 12 | .324 | 69 | 69 | 19 | 19.7 | .642 |
| Anthony Banda* | Det | sp | 25 | 1 | 1 | 1.000 | 0 | .000 | 0 | 3 | 0 | .000 | 7 | 3 | 2 | 59.0 | .659 |
| Manny Banuelos* | ChA | sp | 28 | 0 | 0 | .000 | 0 | .000 | 2 | 21 | 6 | .286 | 29 | 29 | 9 | 20.7 | .583 |
| Jacob Barnes | Tor | mr | 29 | 13 | 5 | .385 | 4 | .308 | 14 | 33 | 7 | .212 | 68 | 68 | 19 | 21.8 | .589 |
| Matt Barnes | Det | mr | 29 | 5 | 2 | .400 | 3 | .600 | 7 | 25 | 6 | .240 | 32 | 32 | 7 | 22.7 | .594 |
| Tony Barnette | Mil | mr | 35 | 0 | 0 | .000 | 0 | .000 | 8 | 15 | 2 | .133 | 28 | 28 | 5 | 19.9 | .626 |
| Kyle Barraclough | Was | mr | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 1 | 1 | 28.0 | .429 |
| Jaime Barria | Cle | sp | 22 | 1 | 0 | .000 | 0 | .000 | 0 | 3 | 0 | .000 | 38 | 6 | 1 | 71.4 | .628 |
| Chris Bassitt | Mil | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 13 | 1 | 1 | 87.5 | .618 |
| Trevor Bauer | | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 3 | 0 | .000 | 35 | 1 | 0 | 103.3 | .631 |
| Gerson Bautista | Cin | mr | 24 | 8 | 7 | .875 | 1 | .125 | 6 | 22 | 9 | .409 | 41 | 41 | 17 | 20.8 | .602 |
| Cam Bedrosian | Tam | mr | 27 | 7 | 4 | .571 | 2 | .286 | 7 | 23 | 7 | .304 | 43 | 43 | 14 | 20.8 | .640 |
| Tyler Beede | NYA | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 0 | 0 | 76.0 | .632 |
| Jalen Beeks* | LAN | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 91.3 | .616 |
| Travis Bergen* | ChA | mr | 25 | 4 | 3 | .750 | 1 | .250 | 2 | 9 | 5 | .556 | 18 | 18 | 7 | 19.5 | .593 |
| Jose Berrios | Det | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 29 | 0 | 0 | 94.0 | .644 |
| Trevor Bettencourt | Mia | mr | 24 | 1 | 0 | .000 | 1 | 1.000 | 1 | 18 | 6 | .333 | 37 | 37 | 12 | 23.3 | .617 |
| Chad Bettis | LAA | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 2 | 0 | 0 | 86.5 | .624 |
| Jesse Biddle* | Col | mr | 27 | 5 | 2 | .400 | 3 | .600 | 6 | 22 | 7 | .318 | 30 | 30 | 9 | 15.6 | .649 |
| Shane Bieber | KC | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 0 | 0 | 95.7 | .662 |
| Brandon Bielak | Ari | sp | 23 | 3 | 1 | .333 | 1 | .333 | 2 | 14 | 3 | .214 | 22 | 22 | 8 | 18.1 | .571 |
| Ray Black | NYN | mr | 29 | 4 | 2 | .500 | 2 | .500 | 2 | 31 | 9 | .290 | 43 | 43 | 8 | 24.3 | .577 |
| Richard Bleier* | ChA | mr | 32 | 1 | 1 | 1.000 | 0 | .000 | 5 | 13 | 3 | .231 | 32 | 32 | 9 | 19.6 | .638 |
| Jerry Blevins* | Sea | mr | 35 | 9 | 3 | .333 | 5 | .556 | 10 | 62 | 23 | .371 | 71 | 71 | 16 | 18.2 | .585 |
| Ben Bowden* | Oak | mr | 24 | 9 | 3 | .333 | 5 | .556 | 11 | 36 | 9 | .250 | 57 | 57 | 15 | 20.5 | .563 |
| Matthew Bowman | ChN | mr | 28 | 9 | 3 | .333 | 5 | .556 | 10 | 20 | 5 | .250 | 55 | 55 | 18 | 19.7 | .623 |
| Matt Boyd* | | sp | 28 | 1 | 1 | 1.000 | 0 | .000 | 0 | 5 | 3 | .600 | 35 | 5 | 5 | 79.7 | .635 |
| Brad Brach | SD | cl | 33 | 42 | 31 | .738 | 10 | .238 | 2 | 25 | 8 | .320 | 61 | 61 | 49 | 18.3 | .606 |
| Archie Bradley | | mr | 26 | 8 | 2 | .250 | 6 | .750 | 16 | 26 | 9 | .346 | 68 | 68 | 22 | 20.2 | .623 |
| Ryan Brasier | Mil | mr | 31 | 23 | 19 | .826 | 4 | .174 | 4 | 34 | 11 | .324 | 63 | 63 | 39 | 18.4 | .630 |
| Steven Brault* | Cle | mr | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 1 | .500 | 9 | 3 | 2 | 69.3 | .599 |
| John Brebbia | Min | mr | 29 | 10 | 5 | .500 | 5 | .500 | 8 | 50 | 17 | .340 | 69 | 69 | 18 | 21.2 | .660 |
| Brandon Brennan | ChN | mr | 27 | 4 | 1 | .250 | 3 | .750 | 0 | 22 | 8 | .364 | 33 | 33 | 13 | 24.3 | .580 |
| Colten Brewer | Cle | mr | 26 | 1 | 1 | 1.000 | 0 | .000 | 0 | 10 | 6 | .600 | 15 | 15 | 6 | 20.7 | .565 |
| Zack Britton* | NYA | cl | 31 | 3 | 2 | .667 | 1 | .333 | 14 | 27 | 5 | .185 | 51 | 51 | 19 | 20.5 | .620 |
| Walker Buehler | Cle | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 28 | 0 | 0 | 86.8 | .615 |
| Madison Bumgarner* | Mia | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 35 | 0 | 0 | 89.4 | .637 |
| Aaron Bummer* | LAA | mr | 25 | 7 | 5 | .714 | 1 | .143 | 11 | 31 | 5 | .161 | 50 | 50 | 22 | 17.4 | .610 |
| Dylan Bundy | LAA | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 31 | 0 | 0 | 90.5 | .635 |
| Brock Burke* | ChN | sp | 22 | 0 | 0 | .000 | 0 | .000 | 1 | 5 | 3 | .600 | 5 | 3 | 1 | 42.0 | .624 |
| Corbin Burnes | Ari | mr | 24 | 15 | 8 | .533 | 6 | .400 | 7 | 38 | 17 | .447 | 61 | 61 | 26 | 17.6 | .611 |
| Matt Bush | SF | mr | 33 | 5 | 0 | .000 | 3 | .600 | 5 | 41 | 11 | .268 | 61 | 61 | 11 | 16.4 | .612 |
| Ty Buttrey | Ari | mr | 26 | 11 | 7 | .636 | 3 | .273 | 11 | 45 | 13 | .289 | 80 | 80 | 23 | 18.7 | .587 |
| Genesis Cabrera* | Ari | sp | 22 | 2 | 1 | .500 | 1 | .500 | 0 | 2 | 1 | .500 | 14 | 13 | 6 | 22.6 | .593 |
| Trevor Cahill | | sp | 31 | 2 | 2 | 1.000 | 0 | .000 | 1 | 10 | 5 | .500 | 26 | 17 | 13 | 45.6 | .630 |
| Griffin Canning | Tam | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 22 | 0 | 0 | 88.7 | .605 |
| Shane Carle | Pit | mr | 27 | 0 | 0 | .000 | 0 | .000 | 1 | 0 | 0 | .000 | 3 | 3 | 1 | 17.0 | .549 |
| Carlos Carrasco | Was | sp | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 13 | 0 | 0 | 104.5 | .672 |
| Cody Carroll | NYN | mr | 26 | 4 | 2 | .500 | 2 | .500 | 1 | 16 | 5 | .313 | 17 | 17 | 11 | 22.9 | .604 |
| Diego Castillo | LAN | mr | 25 | 0 | 0 | .000 | 0 | .000 | 3 | 17 | 4 | .235 | 25 | 25 | 3 | 17.3 | .606 |
| Luis Castillo | | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 31 | 0 | 0 | 95.2 | .631 |
| Dylan Cease | Mil | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 23 | 0 | 0 | 88.9 | .594 |
| Xavier Cedeno* | Pit | mr | 32 | 2 | 0 | .000 | 1 | .500 | 4 | 6 | 3 | .500 | 18 | 18 | 4 | 13.4 | .541 |
| Luis Cessa | | sp | 27 | 2 | 0 | .000 | 2 | 1.000 | 4 | 18 | 7 | .389 | 26 | 26 | 6 | 21.7 | .616 |
| Jhoulys Chacin | Det | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 23 | 0 | 0 | 91.7 | .598 |
| Andrew Chafin* | | mr | 29 | 2 | 2 | 1.000 | 0 | .000 | 5 | 16 | 8 | .500 | 31 | 31 | 14 | 17.6 | .615 |
| Aroldis Chapman* | | cl | 31 | 24 | 22 | .917 | 2 | .083 | 5 | 21 | 3 | .143 | 51 | 51 | 39 | 21.4 | .610 |
| JT Chargois | LAN | mr | 28 | 3 | 3 | 1.000 | 0 | .000 | 0 | 29 | 4 | .138 | 28 | 28 | 14 | 19.5 | .589 |
| Jesse Chavez | StL | mr | 35 | 15 | 8 | .533 | 5 | .333 | 27 | 36 | 10 | .278 | 102 | 102 | 32 | 19.4 | .644 |
| Yonny Chirinos | ChN | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 8 | 0 | 0 | 97.5 | .651 |
| Adam Cimber | LAA | mr | 28 | 5 | 5 | 1.000 | 0 | .000 | 8 | 34 | 7 | .206 | 47 | 47 | 19 | 20.5 | .684 |
| Tony Cingrani* | Hou | mr | 29 | 0 | 0 | .000 | 0 | .000 | 1 | 5 | 1 | .200 | 6 | 6 | 1 | 14.8 | .640 |
| Steve Cishek | Min | mr | 33 | 7 | 2 | .286 | 5 | .714 | 8 | 20 | 2 | .100 | 52 | 52 | 19 | 21.5 | .622 |
| Aaron Civale | Was | sp | 24 | 2 | 1 | .500 | 1 | .500 | 2 | 15 | 3 | .200 | 30 | 30 | 5 | 27.3 | .658 |
| Alex Claudio* | | mr | 27 | 7 | 4 | .571 | 3 | .429 | 10 | 30 | 7 | .233 | 60 | 60 | 16 | 19.2 | .658 |
| Michael Clevinger | Bos | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 19 | 0 | 0 | 96.2 | .604 |
| Tyler Clippard | Bal | mr | 34 | 12 | 3 | .250 | 8 | .667 | 15 | 48 | 16 | .333 | 76 | 76 | 18 | 17.2 | .622 |
| Corbin Clouse* | Cle | mr | 24 | 1 | 1 | 1.000 | 0 | .000 | 0 | 4 | 1 | .250 | 12 | 12 | 4 | 24.7 | .632 |
| Gerrit Cole | LAA | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 0 | 0 | 93.8 | .649 |
| Taylor Cole | ChN | mr | 29 | 3 | 2 | .667 | 0 | .000 | 4 | 13 | 8 | .615 | 46 | 46 | 23 | 22.3 | .628 |
| Alex Colome | | cl | 30 | 12 | 6 | .500 | 4 | .333 | 12 | 26 | 6 | .231 | 57 | 57 | 16 | 18.5 | .630 |
| Patrick Corbin* | Bal | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 0 | 0 | 93.8 | .644 |
| Nestor Cortes* | Tam | sp | 24 | 5 | 1 | .200 | 4 | .800 | 13 | 46 | 18 | .391 | 61 | 61 | 20 | 19.0 | .592 |
| Kyle Crick | | mr | 26 | 7 | 6 | .857 | 0 | .000 | 7 | 35 | 11 | .314 | 48 | 48 | 19 | 19.3 | .575 |
| Kyle Crockett* | Min | mr | 27 | 5 | 3 | .600 | 1 | .200 | 8 | 21 | 6 | .286 | 50 | 50 | 29 | 16.5 | .663 |
| Yu Darvish | NYA | sp | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 93.1 | .624 |
| Zach Davies | ChA | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 17 | 0 | 0 | 88.4 | .626 |
| Austin Davis* | | mr | 26 | 9 | 3 | .333 | 6 | .667 | 10 | 28 | 7 | .250 | 62 | 62 | 22 | 19.9 | .608 |
| Wade Davis | Det | cl | 33 | 28 | 27 | .964 | 1 | .036 | 3 | 21 | 2 | .095 | 53 | 53 | 45 | 17.8 | .596 |
| Grant Dayton* | KC | mr | 31 | 2 | 0 | .000 | 2 | 1.000 | 3 | 16 | 5 | .313 | 21 | 21 | 5 | 26.8 | .602 |
| Enyel de los Santos | Oak | sp | 23 | 7 | 4 | .571 | 1 | .143 | 8 | 36 | 13 | .361 | 59 | 58 | 23 | 22.2 | .572 |
| Dean Deetz | StL | mr | 25 | 1 | 1 | 1.000 | 0 | .000 | 0 | 2 | 0 | .000 | 15 | 4 | 2 | 73.0 | .604 |
| Jacob deGrom | Tor | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 34 | 0 | 0 | 106.1 | .650 |
| Randall Delgado | Mil | mr | 29 | 2 | 0 | .000 | 2 | 1.000 | 0 | 10 | 3 | .300 | 26 | 26 | 13 | 22.4 | .579 |
| Anthony DeSclafani | Ari | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 1 | 1.000 | 32 | 2 | 2 | 82.7 | .655 |
| Chris Devenski | Det | mr | 28 | 13 | 12 | .923 | 1 | .077 | 5 | 22 | 4 | .182 | 39 | 36 | 25 | 21.7 | .637 |
| Edwin Diaz | Cle | cl | 25 | 20 | 18 | .900 | 2 | .100 | 3 | 30 | 1 | .033 | 56 | 56 | 42 | 19.2 | .603 |
| Jumbo Diaz | NYN | mr | 35 | 8 | 5 | .625 | 2 | .250 | 7 | 36 | 12 | .333 | 67 | 67 | 21 | 21.4 | .593 |
| Miguel Diaz | Tex | mr | 24 | 3 | 1 | .333 | 2 | .667 | 0 | 4 | 3 | .750 | 5 | 5 | 3 | 23.8 | .529 |
| Phillip Diehl* | Bos | mr | 24 | 2 | 1 | .500 | 0 | .000 | 4 | 55 | 20 | .364 | 75 | 75 | 29 | 29.0 | .600 |
| Jake Diekman* | | mr | 32 | 5 | 4 | .800 | 1 | .200 | 9 | 21 | 3 | .143 | 35 | 35 | 12 | 16.7 | .579 |
| Kyle Dohy* | Hou | mr | 22 | 15 | 5 | .333 | 5 | .333 | 16 | 82 | 29 | .354 | 108 | 108 | 20 | 16.6 | .503 |
| Seranthony Dominguez | StL | cl | 24 | 19 | 15 | .789 | 4 | .211 | 1 | 15 | 4 | .267 | 35 | 35 | 29 | 17.0 | .592 |
| Sean Doolittle* | | cl | 32 | 24 | 16 | .667 | 7 | .292 | 8 | 39 | 11 | .282 | 88 | 88 | 41 | 16.1 | .667 |
| Oliver Drake | Mia | mr | 32 | 0 | 0 | .000 | 0 | .000 | 1 | 8 | 0 | .000 | 5 | 5 | 2 | 16.8 | .643 |
| Tyler Duffey | | mr | 28 | 0 | 0 | .000 | 0 | .000 | 1 | 12 | 4 | .333 | 15 | 15 | 2 | 25.8 | .630 |
| Danny Duffy* | SF | sp | 30 | 0 | 0 | .000 | 0 | .000 | 1 | 0 | 0 | .000 | 18 | 3 | 0 | 84.5 | .621 |
| Robert Dugger | Tam | sp | 23 | 2 | 0 | .000 | 2 | 1.000 | 2 | 13 | 7 | .538 | 17 | 17 | 4 | 23.4 | .613 |
| Zach Duke* | KC | mr | 36 | 3 | 2 | .667 | 1 | .333 | 14 | 18 | 1 | .056 | 33 | 33 | 6 | 14.8 | .591 |
| Justin Dunn | Ari | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 0 | 0 | 91.0 | .637 |
| Jon Duplantier | Col | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 10 | 0 | 0 | 81.7 | .600 |
| Sam Dyson | Tam | mr | 31 | 13 | 10 | .769 | 3 | .231 | 0 | 18 | 7 | .389 | 26 | 26 | 22 | 18.5 | .612 |
| Carl Edwards Jr. | | mr | 27 | 6 | 4 | .667 | 2 | .333 | 2 | 17 | 4 | .235 | 30 | 30 | 14 | 23.1 | .561 |
| Zach Eflin | Cle | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 27 | 0 | 0 | 88.3 | .641 |
| Jerad Eickhoff | LAA | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 17 | 0 | 0 | 92.1 | .635 |
| Roenis Elias* | Cle | mr | 30 | 1 | 0 | .000 | 1 | 1.000 | 3 | 23 | 9 | .391 | 28 | 28 | 10 | 25.5 | .594 |
| Seth Elledge | LAA | mr | 23 | 1 | 0 | .000 | 1 | 1.000 | 1 | 1 | 0 | .000 | 3 | 3 | 1 | 29.0 | .598 |
| Nathan Eovaldi | LAA | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 17 | 0 | 0 | 92.8 | .669 |
| Robbie Erlin* | | mr | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 3 | 1 | .333 | 34 | 2 | 0 | 90.1 | .653 |
| Luis Escobar | Tor | sp | 23 | 1 | 0 | .000 | 1 | 1.000 | 0 | 3 | 0 | .000 | 2 | 2 | 1 | 8.5 | .706 |
| Raynel Espinal | NYN | mr | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 19 | 0 | 0 | 93.2 | .637 |
| Carlos Estevez | Min | mr | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 6 | 2 | .333 | 4 | 4 | 1 | 25.5 | .598 |
| Tommy Eveld | Cle | mr | 25 | 3 | 3 | 1.000 | 0 | .000 | 6 | 17 | 2 | .118 | 24 | 24 | 6 | 19.9 | .606 |
| Alex Faedo | Hou | sp | 23 | 3 | 3 | 1.000 | 0 | .000 | 0 | 22 | 6 | .273 | 36 | 22 | 21 | 48.8 | .597 |
| Jeurys Familia | | cl | 29 | 8 | 4 | .500 | 3 | .375 | 11 | 23 | 10 | .435 | 42 | 42 | 16 | 21.7 | .613 |
| Jacob Faria | Tam | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 11 | 1 | 1 | 86.3 | .571 |
| Erick Fedde | Cle | sp | 26 | 0 | 0 | .000 | 0 | .000 | 4 | 38 | 12 | .316 | 53 | 52 | 6 | 20.7 | .607 |
| Michael Feliz | Oak | mr | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 1 | 1 | 20.0 | .600 |
| Caleb Ferguson* | Col | mr | 22 | 2 | 0 | .000 | 1 | .500 | 2 | 19 | 10 | .526 | 47 | 21 | 3 | 58.3 | .601 |
| Junior Fernandez | StL | mr | 22 | 3 | 1 | .333 | 2 | .667 | 0 | 7 | 2 | .286 | 7 | 7 | 6 | 16.7 | .564 |
| J.P. Feyereisen | Was | mr | 26 | 5 | 2 | .400 | 3 | .600 | 2 | 11 | 1 | .091 | 25 | 25 | 17 | 20.6 | .605 |
| Josh Fields | Phi | mr | 33 | 5 | 2 | .400 | 3 | .600 | 9 | 22 | 5 | .227 | 42 | 42 | 12 | 21.1 | .649 |
| Mike Fiers | | sp | 34 | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 2 | 1.000 | 33 | 1 | 1 | 84.6 | .636 |
| Jack Flaherty | Bal | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 89.5 | .631 |
| Chris Flexen | Hou | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 4 | 1 | .250 | 5 | 5 | 2 | 14.8 | .635 |
| Dylan Floro | Cle | mr | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 16 | 3 | .188 | 10 | 10 | 0 | 37.8 | .611 |
| Mike Foltynewicz | | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 26 | 1 | 1 | 87.3 | .622 |
| Wilmer Font | SF | sp | 29 | 10 | 5 | .500 | 1 | .100 | 11 | 51 | 15 | .294 | 72 | 72 | 15 | 18.5 | .645 |
| Kyle Freeland* | ChA | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 0 | 0 | 101.5 | .605 |
| Max Fried* | Ari | sp | 25 | 3 | 2 | .667 | 1 | .333 | 12 | 24 | 8 | .333 | 40 | 40 | 7 | 20.0 | .581 |
| Jace Fry* | Bos | mr | 25 | 6 | 2 | .333 | 4 | .667 | 12 | 11 | 1 | .091 | 37 | 37 | 11 | 21.0 | .577 |
| Paul Fry* | ChA | mr | 26 | 8 | 5 | .625 | 1 | .125 | 17 | 41 | 8 | .195 | 66 | 66 | 23 | 20.1 | .603 |
| Carson Fulmer | Hou | sp | 25 | 3 | 1 | .333 | 2 | .667 | 5 | 20 | 10 | .500 | 39 | 39 | 4 | 16.4 | .587 |
| Kyle Funkhouser | KC | sp | 25 | 1 | 0 | .000 | 1 | 1.000 | 2 | 25 | 5 | .200 | 27 | 27 | 10 | 27.1 | .573 |
| Drew Gagnon | LAA | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 8 | 0 | 0 | 87.0 | .598 |
| Giovanny Gallegos | SF | mr | 27 | 23 | 10 | .435 | 5 | .217 | 23 | 64 | 10 | .156 | 122 | 122 | 28 | 19.6 | .619 |
| Zac Gallen | Cin | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 11 | 0 | 0 | 85.8 | .639 |
| John Gant | Hou | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 34 | 1 | 0 | 91.3 | .599 |
| Edgar Garcia | Phi | mr | 22 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 1 | 1 | 31.0 | .516 |
| Jarlin Garcia* | Cle | mr | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 8 | 5 | .625 | 7 | 7 | 2 | 31.1 | .628 |
| Yimi Garcia | SD | mr | 28 | 8 | 5 | .625 | 3 | .375 | 5 | 39 | 13 | .333 | 52 | 52 | 22 | 19.9 | .656 |
| Amir Garrett* | Tex | mr | 27 | 6 | 3 | .500 | 2 | .333 | 13 | 47 | 8 | .170 | 58 | 58 | 20 | 21.2 | .585 |
| Kevin Gausman | | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 29 | 0 | 0 | 89.7 | .638 |
| Cory Gearrin | Atl | mr | 33 | 8 | 4 | .500 | 0 | .000 | 8 | 19 | 1 | .053 | 38 | 38 | 15 | 16.7 | .619 |
| Domingo German | | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 12 | 1 | 1 | 86.4 | .591 |
| Ian Gibaut | ChN | mr | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 0 | .000 | 3 | 3 | 1 | 24.3 | .575 |
| Kyle Gibson | Bos | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 1 | 0 | 100.0 | .617 |
| Ken Giles | Sea | cl | 28 | 24 | 19 | .792 | 5 | .208 | 3 | 62 | 20 | .323 | 78 | 78 | 49 | 19.3 | .628 |
| Kevin Ginkel | KC | mr | 25 | 5 | 2 | .400 | 2 | .400 | 20 | 24 | 8 | .333 | 63 | 63 | 16 | 20.0 | .597 |
| Lucas Giolito | Hou | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 6 | 2 | 0 | 74.2 | .593 |
| Mychal Givens | | mr | 29 | 3 | 3 | 1.000 | 0 | .000 | 3 | 29 | 4 | .138 | 36 | 36 | 21 | 23.2 | .615 |
| Tyler Glasnow | Oak | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 11 | 0 | 0 | 98.4 | .611 |
| Zack Godley | NYN | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 4 | 0 | .000 | 33 | 4 | 2 | 84.0 | .607 |
| Luiz Gohara* | Sea | sp | 22 | 1 | 0 | .000 | 1 | 1.000 | 1 | 3 | 1 | .333 | 13 | 8 | 3 | 46.2 | .578 |
| Austin Gomber* | StL | sp | 25 | 1 | 1 | 1.000 | 0 | .000 | 1 | 4 | 0 | .000 | 10 | 10 | 4 | 24.9 | .550 |
| Stephen Gonsalves* | KC | sp | 24 | 7 | 5 | .714 | 1 | .143 | 1 | 15 | 4 | .267 | 26 | 26 | 10 | 19.3 | .602 |
| Tony Gonsolin | Min | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 9 | 0 | 0 | 79.9 | .591 |
| Marco Gonzales* | StL | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 87.5 | .667 |
| Chi Chi Gonzalez | ChN | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 31 | 0 | 0 | 90.4 | .601 |
| Gio Gonzalez* | | sp | 33 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 22 | 0 | 0 | 91.7 | .597 |
| Nick Goody | | mr | 27 | 2 | 0 | .000 | 2 | 1.000 | 6 | 25 | 12 | .480 | 33 | 32 | 11 | 19.7 | .635 |
| Trevor Gott | Atl | mr | 26 | 16 | 11 | .688 | 4 | .250 | 7 | 26 | 5 | .192 | 51 | 51 | 24 | 19.5 | .598 |
| Matt Grace* | LAA | mr | 30 | 3 | 2 | .667 | 1 | .333 | 4 | 26 | 10 | .385 | 44 | 44 | 13 | 21.8 | .617 |
| Jon Gray | Phi | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 28 | 0 | 0 | 89.6 | .650 |
| Sonny Gray | SF | sp | 29 | 0 | 0 | .000 | 0 | .000 | 1 | 3 | 0 | .000 | 41 | 3 | 2 | 83.0 | .606 |
| Chad Green | ChN | mr | 28 | 37 | 33 | .892 | 4 | .108 | 0 | 29 | 8 | .276 | 62 | 62 | 48 | 17.9 | .653 |
| Shane Greene | Bal | cl | 30 | 7 | 5 | .714 | 2 | .286 | 1 | 8 | 3 | .375 | 12 | 12 | 8 | 19.8 | .601 |
| Luke Gregerson | Phi | mr | 35 | 1 | 0 | .000 | 1 | 1.000 | 1 | 8 | 4 | .500 | 12 | 12 | 9 | 23.1 | .690 |
| Zack Greinke | | sp | 35 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 1 | 0 | 98.8 | .651 |
| Robert Gsellman | Min | cl | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 2 | 1.000 | 4 | 4 | 1 | 37.5 | .587 |
| Junior Guerra | Tam | sp | 34 | 4 | 1 | .250 | 3 | .750 | 7 | 49 | 14 | .286 | 66 | 66 | 11 | 20.3 | .613 |
| Tayron Guerrero | NYA | mr | 28 | 2 | 0 | .000 | 2 | 1.000 | 1 | 11 | 4 | .364 | 17 | 17 | 8 | 26.4 | .556 |
| Vladimir Gutierrez | Cin | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 1 | 1.000 | 6 | 1 | 0 | 89.7 | .604 |
| Jorge Guzman | NYA | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 0 | 0 | 103.0 | .485 |
| Josh Hader* | Oak | mr | 25 | 16 | 11 | .688 | 5 | .313 | 17 | 54 | 11 | .204 | 84 | 84 | 35 | 20.0 | .599 |
| Matt Hall* | ChN | mr | 25 | 1 | 0 | .000 | 1 | 1.000 | 1 | 5 | 1 | .200 | 8 | 8 | 1 | 31.9 | .600 |
| Cole Hamels* | | sp | 35 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 30 | 0 | 0 | 103.1 | .614 |
| Ian Hamilton | Tam | mr | 24 | 10 | 9 | .900 | 1 | .100 | 1 | 6 | 0 | .000 | 17 | 17 | 15 | 16.8 | .619 |
| Brad Hand* | SD | cl | 29 | 12 | 9 | .750 | 3 | .250 | 22 | 23 | 6 | .261 | 69 | 69 | 23 | 20.2 | .629 |
| Alec Hansen | KC | sp | 24 | 2 | 1 | .500 | 1 | .500 | 0 | 7 | 5 | .714 | 3 | 3 | 3 | 15.7 | .553 |
| J.A. Happ* | ChN | sp | 36 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 35 | 0 | 0 | 91.6 | .637 |
| Blaine Hardy* | Mil | mr | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 0 | 0 | 92.1 | .654 |
| Ryne Harper | ChN | mr | 30 | 3 | 2 | .667 | 1 | .333 | 11 | 32 | 9 | .281 | 53 | 53 | 13 | 22.7 | .628 |
| Will Harris | Pit | mr | 34 | 5 | 2 | .400 | 3 | .600 | 25 | 40 | 12 | .300 | 84 | 84 | 14 | 15.5 | .651 |
| Donnie Hart* | Mil | mr | 28 | 12 | 3 | .250 | 8 | .667 | 12 | 25 | 9 | .360 | 64 | 64 | 22 | 20.6 | .590 |
| Hunter Harvey | | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 5 | 3 | 0 | 51.8 | .629 |
| Matt Harvey | Pit | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 16 | 4 | 1 | 67.4 | .640 |
| Andrew Heaney* | Phi | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 20 | 0 | 0 | 92.7 | .643 |
| Ben Heller | LAA | mr | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 3 | 0 | .000 | 2 | 2 | 1 | 38.5 | .649 |
| Heath Hembree | SD | mr | 30 | 4 | 2 | .500 | 2 | .500 | 22 | 24 | 10 | .417 | 55 | 55 | 12 | 18.0 | .642 |
| Kyle Hendricks | | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 34 | 0 | 0 | 83.5 | .660 |
| Liam Hendriks | ChN | mr | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 34 | 0 | 0 | 87.6 | .636 |
| Jimmy Herget | Col | mr | 25 | 5 | 5 | 1.000 | 0 | .000 | 2 | 24 | 6 | .250 | 30 | 30 | 12 | 19.4 | .649 |
| Darwinzon Hernandez* | Tor | sp | 22 | 0 | 0 | .000 | 0 | .000 | 1 | 2 | 1 | .500 | 6 | 4 | 0 | 35.0 | .557 |
| David Hernandez | Mil | mr | 34 | 8 | 3 | .375 | 3 | .375 | 7 | 37 | 16 | .432 | 60 | 60 | 16 | 23.1 | .595 |
| Elieser Hernandez | | mr | 24 | 2 | 2 | 1.000 | 0 | .000 | 3 | 15 | 4 | .267 | 22 | 22 | 8 | 19.6 | .585 |
| Felix Hernandez | Tor | sp | 33 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 4 | 0 | 0 | 96.0 | .654 |
| Jonathan Hernandez | Tor | sp | 22 | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 0 | .000 | 2 | 1 | 1 | 71.0 | .549 |
| Kelvin Herrera | NYN | cl | 29 | 7 | 4 | .571 | 1 | .143 | 8 | 31 | 11 | .355 | 78 | 78 | 27 | 17.7 | .634 |
| Jordan Hicks | Min | mr | 22 | 4 | 1 | .250 | 2 | .500 | 3 | 17 | 5 | .294 | 34 | 34 | 18 | 22.3 | .582 |
| Rich Hill* | Pit | sp | 39 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 14 | 2 | 0 | 81.7 | .619 |
| Yoshihisa Hirano | LAN | mr | 35 | 4 | 2 | .500 | 2 | .500 | 9 | 29 | 14 | .483 | 59 | 59 | 22 | 18.6 | .622 |
| Jeff Hoffman | Sea | sp | 26 | 3 | 1 | .333 | 2 | .667 | 2 | 26 | 8 | .308 | 51 | 27 | 8 | 59.0 | .577 |
| Jonathan Holder | | mr | 26 | 3 | 2 | .667 | 1 | .333 | 3 | 26 | 10 | .385 | 42 | 42 | 18 | 22.5 | .638 |
| Greg Holland | ChA | cl | 33 | 0 | 0 | .000 | 0 | .000 | 2 | 1 | 0 | .000 | 13 | 13 | 6 | 24.2 | .586 |
| Grant Holmes | Cle | sp | 23 | 3 | 2 | .667 | 1 | .333 | 4 | 11 | 4 | .364 | 21 | 20 | 7 | 21.2 | .598 |
| J.J. Hoover | Bal | mr | 31 | 11 | 8 | .727 | 3 | .273 | 4 | 32 | 8 | .250 | 46 | 46 | 23 | 17.3 | .582 |
| Adrian Houser | Tex | sp | 26 | 0 | 0 | .000 | 0 | .000 | 2 | 7 | 3 | .429 | 13 | 7 | 2 | 52.5 | .625 |
| Brian Howard | | sp | 24 | 1 | 0 | .000 | 1 | 1.000 | 0 | 6 | 2 | .333 | 24 | 8 | 3 | 63.4 | .606 |
| James Hoyt | | mr | 32 | 14 | 12 | .857 | 2 | .143 | 2 | 23 | 5 | .217 | 35 | 35 | 24 | 18.3 | .637 |
| Dakota Hudson | | sp | 24 | 11 | 11 | 1.000 | 0 | .000 | 1 | 12 | 2 | .167 | 40 | 18 | 16 | 56.6 | .605 |
| Jared Hughes | Bos | mr | 33 | 36 | 33 | .917 | 3 | .083 | 2 | 37 | 9 | .243 | 60 | 60 | 50 | 17.0 | .616 |
| Danny Hultzen* | Tex | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 2 | 0 | 0 | 75.0 | .593 |
| Tommy Hunter | Phi | mr | 32 | 1 | 0 | .000 | 1 | 1.000 | 1 | 2 | 1 | .500 | 6 | 6 | 3 | 12.7 | .803 |
| Raisel Iglesias | Col | cl | 29 | 13 | 3 | .231 | 8 | .615 | 23 | 39 | 9 | .231 | 74 | 74 | 16 | 20.2 | .621 |
| Cole Irvin* | | sp | 25 | 1 | 0 | .000 | 1 | 1.000 | 1 | 17 | 8 | .471 | 27 | 22 | 7 | 32.9 | .620 |
| Luke Jackson | KC | mr | 27 | 13 | 7 | .538 | 5 | .385 | 13 | 41 | 11 | .268 | 62 | 62 | 20 | 21.1 | .601 |
| Josh James | ChN | sp | 26 | 0 | 0 | .000 | 0 | .000 | 1 | 2 | 0 | .000 | 2 | 2 | 0 | 26.0 | .788 |
| Kenley Jansen | | cl | 31 | 40 | 34 | .850 | 6 | .150 | 1 | 21 | 4 | .190 | 58 | 58 | 47 | 18.3 | .640 |
| Jeremy Jeffress | | cl | 31 | 24 | 18 | .750 | 6 | .250 | 2 | 26 | 7 | .269 | 41 | 41 | 29 | 19.8 | .606 |
| Dan Jennings* | | mr | 32 | 1 | 1 | 1.000 | 0 | .000 | 1 | 8 | 2 | .250 | 14 | 14 | 3 | 18.5 | .629 |
| Joe Jimenez | KC | mr | 24 | 39 | 31 | .795 | 8 | .205 | 8 | 37 | 2 | .054 | 66 | 66 | 47 | 16.5 | .625 |
| Brian Johnson* | Mil | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 2 | 1.000 | 2 | 2 | 0 | 37.0 | .622 |
| D.J. Johnson | ChA | mr | 29 | 2 | 2 | 1.000 | 0 | .000 | 2 | 10 | 4 | .400 | 22 | 22 | 10 | 23.1 | .593 |
| Tyler B. Johnson | ChA | mr | 23 | 1 | 1 | 1.000 | 0 | .000 | 1 | 7 | 1 | .143 | 11 | 11 | 4 | 27.1 | .604 |
| Jake Junis | LAN | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 0 | 0 | 99.7 | .662 |
| Tommy Kahnle | LAA | mr | 29 | 6 | 2 | .333 | 3 | .500 | 16 | 25 | 5 | .200 | 49 | 49 | 15 | 23.8 | .612 |
| Rob Kaminsky* | Bal | mr | 24 | 2 | 0 | .000 | 0 | .000 | 2 | 13 | 2 | .154 | 13 | 13 | 4 | 15.5 | .574 |
| James Karinchak | Tex | mr | 23 | 3 | 1 | .333 | 2 | .667 | 8 | 40 | 16 | .400 | 44 | 43 | 13 | 20.2 | .539 |
| Anthony Kay* | | sp | 24 | 1 | 1 | 1.000 | 0 | .000 | 0 | 5 | 2 | .400 | 18 | 5 | 4 | 75.5 | .585 |
| Keone Kela | | cl | 26 | 5 | 3 | .600 | 1 | .200 | 15 | 16 | 2 | .125 | 37 | 37 | 12 | 21.3 | .640 |
| Brad Keller | ChA | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 0 | 0 | 86.6 | .630 |
| Brian Keller | Tex | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 0 | 0 | 90.0 | .611 |
| Kyle Keller | NYN | mr | 26 | 5 | 4 | .800 | 0 | .000 | 4 | 47 | 11 | .234 | 69 | 69 | 16 | 21.1 | .588 |
| Mitch Keller | NYN | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 1 | .500 | 4 | 4 | 4 | 21.3 | .635 |
| Shawn Kelley | Pit | mr | 35 | 8 | 6 | .750 | 2 | .250 | 8 | 27 | 9 | .333 | 45 | 45 | 15 | 13.8 | .666 |
| Joe Kelly | Mil | mr | 31 | 7 | 2 | .286 | 2 | .286 | 10 | 48 | 16 | .333 | 66 | 66 | 13 | 19.7 | .597 |
| Merrill Kelly | Bos | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 6 | 2 | .333 | 17 | 6 | 4 | 63.1 | .635 |
| Ian Kennedy | | sp | 34 | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 0 | .000 | 28 | 3 | 2 | 81.5 | .632 |
| Clayton Kershaw* | NYA | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 28 | 0 | 0 | 94.9 | .661 |
| Dallas Keuchel* | ChN | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 22 | 0 | 0 | 97.7 | .638 |
| Yusei Kikuchi* | ChA | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 0 | 0 | 92.1 | .612 |
| Craig Kimbrel | Tor | cl | 31 | 11 | 8 | .727 | 3 | .273 | 0 | 16 | 3 | .188 | 25 | 25 | 22 | 25.6 | .600 |
| Michael King | Tex | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 2 | 1.000 | 11 | 1 | 1 | 89.9 | .630 |
| Nick Kingham | Hou | sp | 27 | 9 | 6 | .667 | 3 | .333 | 13 | 58 | 21 | .362 | 87 | 77 | 23 | 22.8 | .635 |
| Brandon Kintzler | Col | mr | 34 | 2 | 1 | .500 | 1 | .500 | 5 | 16 | 3 | .188 | 29 | 29 | 10 | 17.2 | .615 |
| Andrew Kittredge | | mr | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 4 | 3 | 2 | 42.0 | .655 |
| Corey Kluber | SF | sp | 33 | 1 | 0 | .000 | 0 | .000 | 0 | 2 | 0 | .000 | 16 | 2 | 0 | 89.1 | .680 |
| Adam Kolarek* | Det | mr | 30 | 2 | 1 | .500 | 1 | .500 | 4 | 13 | 4 | .308 | 17 | 17 | 5 | 25.1 | .604 |
| Michael Kopech | SF | sp | 23 | 1 | 1 | 1.000 | 0 | .000 | 0 | 1 | 0 | .000 | 3 | 1 | 1 | 74.3 | .601 |
| Dean Kremer | Cin | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 6 | 1 | 0 | 83.7 | .580 |
| Brady Lail | Hou | mr | 25 | 8 | 4 | .500 | 1 | .125 | 13 | 45 | 18 | .400 | 81 | 80 | 13 | 17.9 | .591 |
| Peter Lambert | ChA | sp | 22 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 8 | 0 | 0 | 90.9 | .651 |
| Dinelson Lamet | KC | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 14 | 0 | 0 | 91.4 | .592 |
| Eric Lauer* | | sp | 24 | 0 | 0 | .000 | 0 | .000 | 3 | 5 | 2 | .400 | 34 | 9 | 2 | 73.4 | .596 |
| Derek Law | Cin | mr | 28 | 6 | 0 | .000 | 4 | .667 | 8 | 26 | 8 | .308 | 48 | 48 | 13 | 19.7 | .606 |
| Tommy Layne* | NYA | mr | 34 | 1 | 0 | .000 | 1 | 1.000 | 6 | 10 | 2 | .200 | 18 | 18 | 3 | 16.6 | .632 |
| Mike Leake | Cin | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 28 | 0 | 0 | 98.0 | .680 |
| Wade LeBlanc* | Pit | sp | 34 | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 1 | .500 | 14 | 4 | 2 | 64.2 | .638 |
| Jose Leclerc | LAA | mr | 25 | 39 | 32 | .821 | 7 | .179 | 0 | 35 | 3 | .086 | 55 | 55 | 47 | 21.7 | .594 |
| Luke Leftwich | Det | mr | 25 | 4 | 2 | .500 | 1 | .250 | 7 | 26 | 5 | .192 | 48 | 47 | 25 | 24.9 | .614 |
| Dominic Leone | Tam | mr | 27 | 4 | 0 | .000 | 4 | 1.000 | 5 | 34 | 13 | .382 | 57 | 57 | 21 | 22.4 | .625 |
| Jon Lester* | | sp | 35 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 30 | 0 | 0 | 92.6 | .632 |
| Zack Littell | Tam | sp | 23 | 0 | 0 | .000 | 0 | .000 | 2 | 30 | 9 | .300 | 36 | 36 | 9 | 19.8 | .615 |
| Ben Lively | Was | sp | 27 | 1 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 23 | 2 | 0 | 87.6 | .624 |
| Jonathan Loaisiga | Ari | sp | 24 | 0 | 0 | .000 | 0 | .000 | 3 | 4 | 0 | .000 | 22 | 9 | 1 | 59.4 | .654 |
| Jorge Lopez | SD | mr | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 4 | 4 | 1 | 21.3 | .671 |
| Pablo Lopez | Tex | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 16 | 0 | 0 | 96.2 | .645 |
| Reynaldo Lopez | Bos | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 7 | 0 | 0 | 94.3 | .605 |
| Yoan Lopez | | mr | 26 | 13 | 6 | .462 | 6 | .462 | 8 | 46 | 18 | .391 | 73 | 73 | 25 | 20.4 | .605 |
| Michael Lorenzen | Cin | mr | 27 | 8 | 6 | .750 | 2 | .250 | 5 | 42 | 15 | .357 | 64 | 64 | 18 | 24.1 | .606 |
| Aaron Loup* | Cin | mr | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 5 | 0 | .000 | 5 | 5 | 0 | 21.0 | .610 |
| Richard Lovelady* | Cle | mr | 23 | 13 | 2 | .154 | 11 | .846 | 11 | 40 | 13 | .325 | 72 | 72 | 23 | 24.6 | .629 |
| Joey Lucchesi* | Ari | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 31 | 0 | 0 | 94.9 | .613 |
| Seth Lugo | NYN | mr | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 92.8 | .639 |
| Jesus Luzardo* | | sp | 21 | 3 | 2 | .667 | 1 | .333 | 0 | 9 | 3 | .333 | 16 | 10 | 8 | 45.9 | .638 |
| Jordan Lyles | Phi | mr | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 18 | 0 | 0 | 97.6 | .605 |
| Lance Lynn | | sp | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 9 | 1 | 1 | 80.9 | .617 |
| Kenta Maeda | Min | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 34 | 0 | 0 | 87.7 | .641 |
| Tyler Mahle | Ari | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 5 | 0 | 0 | 86.0 | .619 |
| Kazuhisa Makita | NYA | mr | 34 | 0 | 0 | .000 | 0 | .000 | 7 | 25 | 10 | .400 | 47 | 47 | 14 | 21.5 | .633 |
| German Marquez | Bos | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 92.0 | .639 |
| Evan Marshall | | mr | 29 | 4 | 1 | .250 | 2 | .500 | 3 | 17 | 5 | .294 | 33 | 33 | 17 | 17.7 | .642 |
| Brett Martin* | Atl | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 91.7 | .627 |
| Chris Martin | | mr | 33 | 5 | 0 | .000 | 5 | 1.000 | 8 | 22 | 8 | .364 | 40 | 40 | 5 | 19.0 | .647 |
| Cody Martin | SD | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 3 | 3 | 1 | 26.0 | .577 |
| Corbin Martin | StL | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 13 | 3 | .231 | 11 | 11 | 3 | 26.5 | .612 |
| Carlos Martinez | Sea | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 17 | 0 | 0 | 102.4 | .603 |
| Bryan Mata | Oak | sp | 20 | 0 | 0 | .000 | 0 | .000 | 0 | 12 | 5 | .417 | 18 | 15 | 9 | 40.8 | .513 |
| Phil Maton | ChN | mr | 26 | 7 | 3 | .429 | 3 | .429 | 11 | 24 | 6 | .250 | 57 | 57 | 20 | 19.0 | .622 |
| Steven Matz* | Mia | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 14 | 0 | 0 | 95.8 | .613 |
| Dustin May | Bos | sp | 21 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 0 | 0 | 92.0 | .674 |
| Trevor May | Sea | mr | 29 | 6 | 0 | .000 | 6 | 1.000 | 7 | 40 | 20 | .500 | 64 | 56 | 16 | 27.2 | .568 |
| Mike Mayers | StL | mr | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 1 | .500 | 1 | 1 | 1 | 5.0 | .600 |
| Tim Mayza* | Atl | mr | 27 | 6 | 4 | .667 | 2 | .333 | 8 | 32 | 11 | .344 | 41 | 41 | 14 | 20.0 | .621 |
| Brendan McCurry | ChN | mr | 27 | 1 | 1 | 1.000 | 0 | .000 | 1 | 17 | 4 | .235 | 29 | 29 | 10 | 26.4 | .656 |
| Jake McGee* | Tor | mr | 32 | 3 | 2 | .667 | 1 | .333 | 2 | 3 | 2 | .667 | 10 | 10 | 5 | 23.2 | .612 |
| Collin McHugh | | sp | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 26 | 0 | 0 | 90.6 | .641 |
| John Means* | | sp | 26 | 7 | 4 | .571 | 2 | .286 | 1 | 9 | 5 | .556 | 29 | 19 | 10 | 45.7 | .640 |
| Adonis Medina | | sp | 22 | 2 | 2 | 1.000 | 0 | .000 | 0 | 18 | 7 | .389 | 22 | 22 | 10 | 31.1 | .583 |
| Adalberto Mejia* | | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 5 | 0 | 0 | 82.2 | .647 |
| Mark Melancon | | cl | 34 | 9 | 5 | .556 | 3 | .333 | 15 | 19 | 7 | .368 | 65 | 65 | 22 | 16.9 | .643 |
| Keury Mella | Sea | sp | 25 | 4 | 1 | .250 | 1 | .250 | 2 | 27 | 8 | .296 | 53 | 33 | 11 | 53.5 | .588 |
| Conner Menez* | LAA | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 5 | 0 | 0 | 95.8 | .562 |
| Daniel Mengden | Col | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 7 | 0 | 0 | 76.4 | .613 |
| Ryan Merritt* | Atl | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 0 | 0 | 85.4 | .673 |
| Keynan Middleton | Bal | mr | 25 | 7 | 2 | .286 | 4 | .571 | 9 | 49 | 8 | .163 | 67 | 67 | 19 | 19.8 | .610 |
| Miles Mikolas | Col | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 38 | 0 | 0 | 91.4 | .666 |
| Wade Miley* | SD | sp | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 8 | 0 | 0 | 94.0 | .624 |
| Andrew Miller* | Pit | mr | 34 | 31 | 30 | .968 | 1 | .032 | 11 | 27 | 4 | .148 | 82 | 82 | 47 | 15.8 | .630 |
| Justin Miller | Det | mr | 32 | 4 | 1 | .250 | 3 | .750 | 6 | 21 | 9 | .429 | 29 | 29 | 8 | 22.6 | .653 |
| Shelby Miller | Atl | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 11 | 0 | 0 | 82.0 | .619 |
| Alec Mills | Cin | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 15 | 1 | 0 | 83.6 | .631 |
| Juan Minaya | Atl | mr | 28 | 7 | 4 | .571 | 1 | .143 | 23 | 24 | 9 | .375 | 67 | 67 | 18 | 20.4 | .596 |
| Mike Minor* | ChN | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 30 | 0 | 0 | 90.0 | .653 |
| A.J. Minter* | Phi | cl | 25 | 8 | 3 | .375 | 3 | .375 | 17 | 24 | 7 | .292 | 52 | 52 | 12 | 18.9 | .604 |
| Rafael Montero | NYA | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 0 | 0 | 109.0 | .633 |
| Jordan Montgomery* | Cle | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 3 | 0 | 0 | 72.7 | .670 |
| Mike Montgomery* | Sea | mr | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 8 | 0 | 0 | 97.9 | .605 |
| Brian Moran* | Tor | mr | 30 | 6 | 2 | .333 | 3 | .500 | 0 | 9 | 2 | .222 | 20 | 20 | 12 | 22.7 | .577 |
| Adam Morgan* | Phi | mr | 29 | 1 | 1 | 1.000 | 0 | .000 | 1 | 1 | 0 | .000 | 6 | 6 | 2 | 26.5 | .629 |
| Reyes Moronta | NYA | mr | 26 | 8 | 4 | .500 | 4 | .500 | 10 | 22 | 9 | .409 | 44 | 44 | 9 | 21.8 | .594 |
| Charlie Morton | | sp | 35 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 0 | 0 | 89.1 | .623 |
| Gabriel Moya* | KC | mr | 24 | 2 | 0 | .000 | 1 | .500 | 2 | 8 | 1 | .125 | 24 | 10 | 2 | 52.8 | .631 |
| Kyle Muller* | StL | sp | 21 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 16 | 0 | 0 | 86.9 | .620 |
| Andres Munoz | Tex | mr | 20 | 11 | 4 | .364 | 5 | .455 | 3 | 54 | 22 | .407 | 64 | 64 | 17 | 21.4 | .520 |
| Patrick Murphy | | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 0 | 0 | 90.0 | .611 |
| Joe Musgrove | ChA | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 1 | 1.000 | 33 | 1 | 1 | 94.1 | .666 |
| Carlos Navas | Atl | mr | 26 | 2 | 1 | .500 | 0 | .000 | 10 | 35 | 11 | .314 | 60 | 60 | 11 | 25.5 | .638 |
| Nick Neidert | | sp | 22 | 3 | 2 | .667 | 1 | .333 | 0 | 2 | 1 | .500 | 35 | 7 | 5 | 76.8 | .646 |
| Jimmy Nelson | SD | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 0 | 0 | 97.0 | .598 |
| Nick Nelson | Was | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 16 | 7 | .438 | 21 | 21 | 8 | 27.2 | .581 |
| Hector Neris | Phi | cl | 30 | 5 | 4 | .800 | 1 | .200 | 26 | 29 | 4 | .138 | 66 | 66 | 15 | 19.5 | .625 |
| Pat Neshek | Phi | mr | 38 | 3 | 1 | .333 | 1 | .333 | 5 | 11 | 3 | .273 | 21 | 21 | 10 | 17.0 | .687 |
| Sean Newcomb* | Oak | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 33 | 1 | 0 | 94.7 | .590 |
| Juan Nicasio | NYA | mr | 32 | 11 | 8 | .727 | 3 | .273 | 6 | 39 | 16 | .410 | 60 | 60 | 26 | 20.4 | .627 |
| Stephen Nogosek | Oak | mr | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 0 | .000 | 3 | 3 | 3 | 18.3 | .618 |
| Aaron Nola | Phi | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 35 | 0 | 0 | 97.8 | .649 |
| Bud Norris | NYN | cl | 34 | 18 | 12 | .667 | 6 | .333 | 3 | 22 | 7 | .318 | 51 | 51 | 36 | 17.6 | .619 |
| Daniel Norris* | Mia | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 0 | 0 | 94.0 | .617 |
| Ivan Nova | Mil | sp | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 89.4 | .658 |
| Darren O'Day | Bos | mr | 36 | 0 | 0 | .000 | 0 | .000 | 1 | 5 | 1 | .200 | 5 | 5 | 3 | 26.2 | .679 |
| Trevor Oaks | Bal | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 6 | 0 | 0 | 91.2 | .636 |
| Scott Oberg | ChA | mr | 29 | 23 | 20 | .870 | 3 | .130 | 1 | 20 | 3 | .150 | 44 | 44 | 38 | 19.9 | .626 |
| Jake Odorizzi | SD | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 30 | 0 | 0 | 94.8 | .635 |
| Seung-hwan Oh | Pit | mr | 36 | 4 | 3 | .750 | 1 | .250 | 10 | 25 | 4 | .160 | 37 | 37 | 7 | 16.6 | .646 |
| Tyler Olson* | Cin | mr | 29 | 6 | 1 | .167 | 1 | .167 | 4 | 13 | 5 | .385 | 35 | 35 | 5 | 13.8 | .625 |
| Luis Ortiz | NYN | sp | 23 | 3 | 0 | .000 | 2 | .667 | 3 | 9 | 3 | .333 | 22 | 22 | 4 | 15.7 | .646 |
| Roberto Osuna | Mia | cl | 24 | 37 | 35 | .946 | 2 | .054 | 5 | 28 | 6 | .214 | 63 | 63 | 49 | 15.5 | .672 |
| Dan Otero | LAA | mr | 34 | 5 | 3 | .600 | 2 | .400 | 12 | 22 | 5 | .227 | 46 | 46 | 15 | 19.4 | .710 |
| Travis Ott* | NYN | mr | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 19 | 0 | 0 | 103.7 | .588 |
| Adam Ottavino | | mr | 33 | 26 | 18 | .692 | 8 | .308 | 3 | 27 | 12 | .444 | 48 | 48 | 33 | 19.8 | .583 |
| Chris Paddack | KC | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 0 | 0 | 80.7 | .652 |
| Emilio Pagan | Cle | mr | 28 | 3 | 0 | .000 | 3 | 1.000 | 8 | 28 | 10 | .357 | 41 | 41 | 9 | 20.6 | .619 |
| Joe Palumbo* | NYN | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 8 | 0 | 0 | 73.5 | .575 |
| Edward Paredes* | Hou | mr | 32 | 3 | 2 | .667 | 0 | .000 | 5 | 14 | 4 | .286 | 25 | 25 | 8 | 16.4 | .616 |
| Blake Parker | LAA | cl | 34 | 1 | 0 | .000 | 0 | .000 | 4 | 16 | 6 | .375 | 20 | 20 | 4 | 21.3 | .601 |
| David Paulino | | sp | 25 | 0 | 0 | .000 | 0 | .000 | 3 | 1 | 0 | .000 | 14 | 11 | 4 | 26.4 | .691 |
| James Paxton* | Sea | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 18 | 0 | 0 | 97.2 | .650 |
| James Pazos* | | mr | 28 | 2 | 1 | .500 | 1 | .500 | 9 | 10 | 1 | .100 | 29 | 29 | 11 | 19.7 | .589 |
| Brad Peacock | | mr | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 20 | 2 | 1 | 89.1 | .625 |
| Felix Pena | | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 14 | 0 | 0 | 88.3 | .614 |
| Freddy Peralta | Oak | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 30 | 1 | 0 | 95.1 | .586 |
| Luis Perdomo | | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 7 | 0 | 0 | 91.1 | .625 |
| Cionel Perez* | NYN | mr | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 0 | 0 | 98.6 | .599 |
| Franklin Perez | Sea | sp | 21 | 1 | 1 | 1.000 | 0 | .000 | 0 | 2 | 0 | .000 | 2 | 2 | 2 | 19.0 | .421 |
| Martin Perez* | LAN | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 89.5 | .622 |
| Oliver Perez* | Det | mr | 37 | 3 | 1 | .333 | 2 | .667 | 12 | 24 | 7 | .292 | 39 | 39 | 4 | 16.7 | .609 |
| David Peterson | LAA | mr | 29 | 3 | 3 | 1.000 | 0 | .000 | 0 | 15 | 5 | .333 | 29 | 28 | 13 | 23.7 | .641 |
| Tim Peterson | Atl | mr | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 1 | 1 | 13.0 | .615 |
| Yusmeiro Petit | | mr | 34 | 4 | 2 | .500 | 2 | .500 | 3 | 21 | 9 | .429 | 38 | 38 | 13 | 20.5 | .685 |
| Michael Pineda | Pit | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 2 | 1.000 | 21 | 1 | 1 | 79.6 | .657 |
| Nick Pivetta | | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 26 | 3 | 1 | 86.5 | .631 |
| Colin Poche* | Col | mr | 25 | 6 | 1 | .167 | 3 | .500 | 13 | 32 | 9 | .281 | 54 | 54 | 17 | 22.8 | .592 |
| Drew Pomeranz* | SD | sp | 30 | 0 | 0 | .000 | 0 | .000 | 1 | 3 | 0 | .000 | 38 | 7 | 1 | 78.3 | .595 |
| Cody Ponce | SD | sp | 25 | 0 | 0 | .000 | 0 | .000 | 1 | 1 | 0 | .000 | 2 | 2 | 0 | 24.5 | .714 |
| Daniel Poncedeleon | StL | sp | 27 | 3 | 3 | 1.000 | 0 | .000 | 5 | 16 | 8 | .500 | 48 | 47 | 19 | 23.1 | .580 |
| Rick Porcello | Bal | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 93.4 | .654 |
| Alex Powers | Cin | mr | 27 | 0 | 0 | .000 | 0 | .000 | 2 | 4 | 1 | .250 | 12 | 12 | 9 | 20.2 | .616 |
| Bobby Poyner* | LAN | mr | 26 | 4 | 2 | .500 | 2 | .500 | 5 | 26 | 9 | .346 | 49 | 49 | 19 | 19.8 | .645 |
| Ryan Pressly | Min | mr | 30 | 18 | 17 | .944 | 1 | .056 | 0 | 18 | 5 | .278 | 35 | 35 | 28 | 21.3 | .615 |
| David Price* | Tor | sp | 33 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 37 | 0 | 0 | 86.9 | .640 |
| Austin Pruitt | Atl | mr | 29 | 3 | 1 | .333 | 2 | .667 | 0 | 12 | 3 | .250 | 31 | 24 | 11 | 40.3 | .677 |
| Cal Quantrill | NYN | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 5 | 0 | 0 | 91.2 | .636 |
| Jose Quijada* | Tor | mr | 23 | 4 | 3 | .750 | 1 | .250 | 3 | 11 | 5 | .455 | 20 | 20 | 7 | 30.8 | .588 |
| Jose Quintana* | Col | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 39 | 0 | 0 | 86.1 | .624 |
| Noe Ramirez | Was | mr | 29 | 0 | 0 | .000 | 0 | .000 | 2 | 3 | 0 | .000 | 9 | 9 | 3 | 21.6 | .608 |
| Edubray Ramos | Tor | mr | 26 | 6 | 3 | .500 | 2 | .333 | 9 | 43 | 11 | .256 | 57 | 57 | 14 | 22.2 | .629 |
| Robbie Ray* | Oak | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 30 | 0 | 0 | 97.3 | .590 |
| Sean Reid-Foley | KC | sp | 23 | 2 | 1 | .500 | 1 | .500 | 6 | 40 | 14 | .350 | 44 | 40 | 13 | 31.0 | .606 |
| Alex Reyes | Tex | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 11 | 0 | 0 | 81.5 | .576 |
| Gerardo Reyes | Tex | mr | 26 | 0 | 0 | .000 | 0 | .000 | 1 | 2 | 0 | .000 | 2 | 2 | 0 | 21.0 | .595 |
| Garrett Richards | Bal | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 86.7 | .610 |
| Trevor Richards | | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 23 | 0 | 0 | 85.9 | .604 |
| Tanner Roark | Min | sp | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 26 | 0 | 0 | 92.0 | .629 |
| David Robertson | Mil | cl | 34 | 12 | 11 | .917 | 1 | .083 | 0 | 11 | 4 | .364 | 20 | 20 | 18 | 17.5 | .605 |
| Fernando Rodney | | cl | 42 | 12 | 7 | .583 | 4 | .333 | 10 | 35 | 4 | .114 | 58 | 58 | 18 | 19.5 | .586 |
| Carlos Rodon* | Col | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 9 | 0 | 0 | 82.7 | .612 |
| Dereck Rodriguez | NYA | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 89.0 | .629 |
| Eduardo Rodriguez* | | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 91.4 | .614 |
| Jefry Rodriguez | Tor | sp | 25 | 0 | 0 | .000 | 0 | .000 | 1 | 3 | 3 | 1.000 | 20 | 3 | 2 | 80.3 | .562 |
| Richard Rodriguez | Mia | mr | 29 | 11 | 2 | .182 | 7 | .636 | 16 | 41 | 13 | .317 | 68 | 68 | 20 | 18.3 | .637 |
| Chaz Roe | | mr | 32 | 5 | 1 | .200 | 4 | .800 | 6 | 31 | 10 | .323 | 33 | 33 | 11 | 20.0 | .583 |
| Taylor Rogers* | | mr | 28 | 10 | 8 | .800 | 1 | .100 | 22 | 23 | 4 | .174 | 70 | 70 | 25 | 14.8 | .641 |
| Fernando Romero | NYN | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 5 | 0 | 0 | 95.4 | .639 |
| JoJo Romero* | | sp | 22 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 1 | 1 | 36.0 | .528 |
| Hector Rondon | Mia | cl | 31 | 5 | 3 | .600 | 1 | .200 | 2 | 35 | 8 | .229 | 52 | 52 | 20 | 18.8 | .653 |
| Trevor Rosenthal | SD | mr | 29 | 3 | 1 | .333 | 2 | .667 | 3 | 35 | 12 | .343 | 48 | 48 | 10 | 22.3 | .619 |
| Joe Ross | Mia | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 4 | 0 | 0 | 83.3 | .613 |
| Robbie Ross* | SD | mr | 30 | 2 | 1 | .500 | 1 | .500 | 0 | 4 | 1 | .250 | 4 | 4 | 2 | 22.5 | .578 |
| Tyson Ross | SF | sp | 32 | 1 | 1 | 1.000 | 0 | .000 | 1 | 2 | 1 | .500 | 9 | 9 | 3 | 20.0 | .628 |
| Zac Rosscup* | Mia | mr | 31 | 1 | 1 | 1.000 | 0 | .000 | 4 | 18 | 5 | .278 | 35 | 35 | 18 | 17.4 | .628 |
| Kyle Ryan* | ChN | mr | 27 | 2 | 1 | .500 | 1 | .500 | 5 | 15 | 8 | .533 | 24 | 24 | 5 | 18.5 | .607 |
| Hyun-jin Ryu* | LAN | sp | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 23 | 0 | 0 | 81.9 | .644 |
| CC Sabathia* | Phi | sp | 38 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 10 | 0 | 0 | 92.2 | .613 |
| Danny Salazar | Tor | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 2 | 0 | 0 | 97.5 | .646 |
| Chris Sale* | Det | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 26 | 0 | 0 | 105.8 | .670 |
| Jeff Samardzija | Pit | sp | 34 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 23 | 0 | 0 | 94.5 | .652 |
| Aaron Sanchez | Tor | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 35 | 0 | 0 | 87.1 | .599 |
| Anibal Sanchez | SF | sp | 35 | 1 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 39 | 2 | 0 | 82.6 | .627 |
| Dennis Santana | Ari | sp | 23 | 7 | 2 | .286 | 4 | .571 | 3 | 34 | 15 | .441 | 73 | 73 | 25 | 19.8 | .606 |
| Josh Sborz | Min | mr | 25 | 2 | 1 | .500 | 1 | .500 | 0 | 7 | 4 | .571 | 13 | 13 | 4 | 22.2 | .578 |
| Kit Scheetz* | Tam | mr | 25 | 2 | 2 | 1.000 | 0 | .000 | 10 | 42 | 11 | .262 | 61 | 61 | 30 | 24.3 | .634 |
| Max Scherzer | Det | sp | 34 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 29 | 0 | 0 | 110.9 | .647 |
| John Schreiber | Atl | mr | 25 | 3 | 2 | .667 | 1 | .333 | 0 | 19 | 7 | .368 | 25 | 25 | 15 | 23.7 | .640 |
| Tanner Scott* | NYN | mr | 24 | 7 | 3 | .429 | 2 | .286 | 16 | 35 | 11 | .314 | 81 | 81 | 23 | 19.1 | .576 |
| Sam Selman* | Tex | mr | 28 | 1 | 0 | .000 | 1 | 1.000 | 1 | 16 | 6 | .375 | 16 | 16 | 1 | 30.9 | .521 |
| Antonio Senzatela | | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 1 | 0 | 85.4 | .610 |
| Mike Shawaryn | Tam | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 23 | 0 | 0 | 89.6 | .622 |
| Justus Sheffield* | Ari | sp | 23 | 3 | 2 | .667 | 1 | .333 | 3 | 13 | 6 | .462 | 43 | 22 | 8 | 56.1 | .588 |
| Chandler Shepherd | Atl | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 13 | 0 | 0 | 87.6 | .658 |
| Jimmie Sherfy | Col | mr | 27 | 2 | 1 | .500 | 0 | .000 | 12 | 35 | 6 | .171 | 57 | 57 | 8 | 19.1 | .626 |
| Matt Shoemaker | Mil | sp | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 10 | 0 | 0 | 89.6 | .647 |
| Logan Shore | Bal | sp | 24 | 2 | 0 | .000 | 2 | 1.000 | 0 | 8 | 6 | .750 | 6 | 6 | 6 | 16.8 | .604 |
| Lucas Sims | Hou | sp | 25 | 10 | 5 | .500 | 5 | .500 | 15 | 60 | 15 | .250 | 91 | 85 | 22 | 22.1 | .587 |
| Tony Sipp* | NYN | mr | 35 | 0 | 0 | .000 | 0 | .000 | 1 | 19 | 4 | .211 | 33 | 33 | 10 | 19.3 | .629 |
| Tyler Skaggs* | StL | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 5 | 0 | 0 | 75.4 | .610 |
| Eric Skoglund* | LAN | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 5 | 0 | 0 | 93.6 | .626 |
| Devin Smeltzer* | Pit | sp | 23 | 3 | 2 | .667 | 0 | .000 | 2 | 9 | 2 | .222 | 11 | 7 | 3 | 45.2 | .644 |
| Caleb Smith* | Oak | sp | 27 | 2 | 1 | .500 | 1 | .500 | 2 | 11 | 3 | .273 | 32 | 19 | 6 | 55.0 | .592 |
| Carson Smith | Sea | mr | 29 | 5 | 4 | .800 | 0 | .000 | 9 | 55 | 17 | .309 | 70 | 69 | 21 | 21.3 | .609 |
| Joe Smith | Mil | mr | 35 | 5 | 2 | .400 | 3 | .600 | 5 | 12 | 3 | .250 | 24 | 24 | 7 | 18.2 | .651 |
| Will Smith* | Mia | cl | 29 | 12 | 9 | .750 | 2 | .167 | 16 | 18 | 5 | .278 | 51 | 51 | 19 | 16.6 | .628 |
| Drew Smyly* | Mil | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 84.9 | .628 |
| Cy Sneed | Pit | sp | 26 | 1 | 1 | 1.000 | 0 | .000 | 0 | 3 | 0 | .000 | 3 | 3 | 3 | 21.3 | .594 |
| Blake Snell* | Tor | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 22 | 0 | 0 | 87.5 | .609 |
| Chad Sobotka | LAN | mr | 25 | 3 | 2 | .667 | 1 | .333 | 3 | 21 | 7 | .333 | 27 | 27 | 5 | 20.3 | .562 |
| Sammy Solis* | Bal | mr | 30 | 6 | 3 | .500 | 2 | .333 | 15 | 35 | 12 | .343 | 66 | 66 | 16 | 16.5 | .574 |
| Joakim Soria | Phi | cl | 35 | 15 | 13 | .867 | 2 | .133 | 15 | 24 | 7 | .292 | 60 | 60 | 29 | 19.4 | .643 |
| Mike Soroka | Ari | sp | 21 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 25 | 1 | 1 | 84.0 | .626 |
| Craig Stammen | Mil | mr | 35 | 5 | 1 | .200 | 3 | .600 | 15 | 21 | 7 | .333 | 48 | 48 | 10 | 19.0 | .649 |
| Ryne Stanek | Oak | mr | 27 | 8 | 2 | .250 | 5 | .625 | 7 | 39 | 13 | .333 | 55 | 52 | 10 | 20.8 | .584 |
| Teddy Stankiewicz | Hou | sp | 25 | 13 | 10 | .769 | 2 | .154 | 2 | 27 | 11 | .407 | 38 | 38 | 26 | 20.4 | .633 |
| Cody Stashak | Was | mr | 25 | 2 | 2 | 1.000 | 0 | .000 | 4 | 11 | 4 | .364 | 18 | 18 | 8 | 13.9 | .672 |
| Josh Staumont | NYN | mr | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 12 | 0 | 0 | 100.9 | .552 |
| Drew Steckenrider | NYA | mr | 28 | 2 | 1 | .500 | 1 | .500 | 3 | 11 | 6 | .545 | 14 | 14 | 5 | 17.5 | .600 |
| Robert Stock | Atl | mr | 29 | 1 | 1 | 1.000 | 0 | .000 | 1 | 12 | 3 | .250 | 9 | 9 | 3 | 20.7 | .624 |
| Matt Strahm* | LAA | mr | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 28 | 0 | 0 | 90.8 | .605 |
| Stephen Strasburg | NYA | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 93.6 | .634 |
| Chris Stratton | Tor | sp | 28 | 2 | 1 | .500 | 0 | .000 | 1 | 9 | 2 | .222 | 20 | 12 | 4 | 48.8 | .603 |
| Ross Stripling | Cin | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 9 | 4 | .444 | 29 | 9 | 2 | 72.4 | .666 |
| Marcus Stroman | SD | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 34 | 1 | 1 | 91.8 | .629 |
| Pedro Strop | Tor | mr | 34 | 18 | 11 | .611 | 6 | .333 | 7 | 31 | 12 | .387 | 59 | 59 | 32 | 20.7 | .625 |
| Andrew Suarez* | SF | sp | 26 | 1 | 1 | 1.000 | 0 | .000 | 0 | 10 | 1 | .100 | 16 | 13 | 9 | 46.9 | .613 |
| Jose Suarez* | Tam | sp | 21 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 31 | 0 | 0 | 92.7 | .615 |
| Ranger Suarez* | Cle | sp | 23 | 6 | 6 | 1.000 | 0 | .000 | 3 | 12 | 4 | .333 | 20 | 20 | 12 | 25.8 | .606 |
| Wander Suero | Tor | mr | 27 | 5 | 3 | .600 | 1 | .200 | 6 | 42 | 16 | .381 | 56 | 56 | 17 | 22.7 | .598 |
| Cole Sulser | Cin | mr | 29 | 4 | 4 | 1.000 | 0 | .000 | 7 | 36 | 5 | .139 | 60 | 60 | 29 | 21.3 | .618 |
| Trey Supak | Ari | sp | 23 | 7 | 4 | .571 | 3 | .429 | 4 | 25 | 4 | .160 | 51 | 51 | 21 | 21.9 | .586 |
| Anthony Swarzak | Col | mr | 33 | 3 | 2 | .667 | 0 | .000 | 6 | 30 | 7 | .233 | 53 | 53 | 16 | 20.4 | .644 |
| Noah Syndergaard | | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 9 | 3 | .333 | 25 | 4 | 4 | 76.3 | .638 |
| Jameson Taillon | Col | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 9 | 0 | 0 | 77.4 | .687 |
| Masahiro Tanaka | LAN | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 0 | 0 | 92.0 | .674 |
| Stephen Tarpley* | LAN | mr | 26 | 12 | 8 | .667 | 4 | .333 | 12 | 38 | 9 | .237 | 82 | 82 | 36 | 25.6 | .590 |
| Curtis Taylor | SF | mr | 23 | 0 | 0 | .000 | 0 | .000 | 1 | 0 | 0 | .000 | 35 | 2 | 1 | 80.0 | .609 |
| Josh Taylor* | Tex | mr | 26 | 1 | 0 | .000 | 1 | 1.000 | 4 | 30 | 9 | .300 | 38 | 38 | 7 | 19.7 | .595 |
| Julio Teheran | SD | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 95.1 | .623 |
| Ryan Tepera | Mil | mr | 31 | 4 | 2 | .500 | 2 | .500 | 4 | 35 | 9 | .257 | 44 | 44 | 18 | 23.5 | .619 |
| Jake Thompson | SD | sp | 25 | 2 | 1 | .500 | 1 | .500 | 2 | 29 | 9 | .310 | 41 | 41 | 8 | 24.4 | .616 |
| Tyler Thornburg | Bal | mr | 30 | 12 | 9 | .750 | 2 | .167 | 6 | 46 | 8 | .174 | 67 | 67 | 29 | 17.9 | .602 |
| Trent Thornton | | sp | 25 | 4 | 1 | .250 | 1 | .250 | 9 | 16 | 3 | .188 | 58 | 48 | 7 | 28.8 | .648 |
| Lewis Thorpe* | KC | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 31 | 0 | 0 | 92.1 | .622 |
| Josh Tomlin | Hou | sp | 34 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 86.6 | .687 |
| Touki Toussaint | Tex | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 94.6 | .597 |
| Blake Treinen | Col | cl | 31 | 33 | 25 | .758 | 8 | .242 | 0 | 29 | 5 | .172 | 59 | 59 | 42 | 20.4 | .627 |
| Andrew Triggs | Atl | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 3 | 0 | 0 | 82.3 | .640 |
| Lou Trivino | | mr | 27 | 8 | 5 | .625 | 3 | .375 | 9 | 33 | 9 | .273 | 61 | 61 | 27 | 22.5 | .635 |
| Duane Underwood | Tex | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 2 | 1.000 | 4 | 4 | 3 | 22.3 | .674 |
| Jose Urena | Tam | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 14 | 0 | 0 | 91.9 | .625 |
| Julio Urias* | Oak | sp | 22 | 0 | 0 | .000 | 0 | .000 | 1 | 0 | 0 | .000 | 25 | 6 | 3 | 77.5 | .601 |
| Framber Valdez* | | sp | 25 | 1 | 0 | .000 | 1 | 1.000 | 0 | 5 | 4 | .800 | 25 | 9 | 4 | 74.6 | .581 |
| Andrew Vasquez* | Bos | mr | 25 | 2 | 0 | .000 | 2 | 1.000 | 9 | 34 | 12 | .353 | 52 | 52 | 21 | 25.1 | .585 |
| Felipe Vazquez* | NYA | cl | 27 | 20 | 18 | .900 | 2 | .100 | 11 | 28 | 8 | .286 | 60 | 60 | 34 | 20.5 | .632 |
| Vince Velasquez | StL | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 0 | 0 | 89.8 | .613 |
| Drew VerHagen | Cle | mr | 28 | 1 | 1 | 1.000 | 0 | .000 | 0 | 4 | 0 | .000 | 4 | 3 | 1 | 64.5 | .636 |
| Justin Verlander | | sp | 36 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 0 | 0 | 104.2 | .657 |
| Stephen Villines | | mr | 23 | 9 | 5 | .556 | 4 | .444 | 13 | 60 | 20 | .333 | 75 | 75 | 19 | 23.7 | .607 |
| Nick Vincent | StL | mr | 32 | 5 | 2 | .400 | 3 | .600 | 2 | 5 | 3 | .600 | 24 | 24 | 9 | 18.8 | .657 |
| Arodys Vizcaino | Cin | cl | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 3 | 3 | 1 | 25.0 | .613 |
| Michael Wacha | Bos | sp | 27 | 5 | 0 | .000 | 4 | .800 | 6 | 22 | 8 | .364 | 40 | 40 | 12 | 25.0 | .617 |
| Jacob Waguespack | | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 4 | 0 | 0 | 85.0 | .600 |
| Bobby Wahl | Sea | mr | 27 | 1 | 0 | .000 | 0 | .000 | 2 | 5 | 2 | .400 | 10 | 10 | 3 | 24.9 | .610 |
| Adam Wainwright | Pit | sp | 37 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 93.3 | .620 |
| Marcus Walden | Mia | mr | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 2 | 2 | 2 | 10.0 | .450 |
| Adam Warren | Sea | mr | 31 | 6 | 2 | .333 | 3 | .500 | 6 | 47 | 19 | .404 | 64 | 57 | 17 | 23.4 | .582 |
| Tony Watson* | Tor | mr | 34 | 9 | 8 | .889 | 0 | .000 | 21 | 64 | 12 | .188 | 70 | 70 | 19 | 16.5 | .657 |
| Luke Weaver | Cle | sp | 25 | 0 | 0 | .000 | 0 | .000 | 1 | 14 | 5 | .357 | 24 | 23 | 7 | 23.7 | .641 |
| Logan Webb | LAA | sp | 22 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 2 | 2 | 2 | 5.0 | .800 |
| Tyler Webb* | | mr | 28 | 6 | 6 | 1.000 | 0 | .000 | 8 | 21 | 3 | .143 | 37 | 37 | 15 | 21.3 | .641 |
| Ryan Weber | | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 2 | 1 | 87.5 | .662 |
| Patrick Weigel | Tex | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 4 | 1 | .250 | 33 | 7 | 5 | 76.8 | .580 |
| Blake Weiman* | Atl | mr | 23 | 3 | 3 | 1.000 | 0 | .000 | 1 | 28 | 9 | .321 | 30 | 30 | 13 | 23.4 | .653 |
| J.B. Wendelken | | mr | 26 | 8 | 5 | .625 | 3 | .375 | 4 | 35 | 10 | .286 | 58 | 58 | 22 | 22.1 | .628 |
| Joey Wentz* | Ari | sp | 21 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 3 | 0 | 0 | 86.3 | .591 |
| Zack Wheeler | Mia | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 0 | 0 | 105.8 | .640 |
| Mitchell White | Cin | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 4 | 0 | 0 | 77.3 | .647 |
| Forrest Whitley | Atl | sp | 21 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 22 | 0 | 0 | 89.2 | .598 |
| Rowan Wick | Was | mr | 26 | 6 | 3 | .500 | 3 | .500 | 2 | 8 | 5 | .625 | 16 | 16 | 7 | 22.7 | .570 |
| Taylor Widener | Ari | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 5 | 0 | 0 | 99.2 | .560 |
| Brad Wieck* | StL | mr | 27 | 6 | 2 | .333 | 2 | .333 | 9 | 26 | 8 | .308 | 61 | 61 | 20 | 19.5 | .574 |
| Aaron Wilkerson | KC | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 11 | 0 | 0 | 77.9 | .592 |
| Taylor Williams | StL | mr | 27 | 3 | 3 | 1.000 | 0 | .000 | 3 | 39 | 7 | .179 | 57 | 57 | 18 | 18.5 | .605 |
| Trevor Williams | Tam | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 27 | 0 | 0 | 89.2 | .633 |
| Bryse Wilson | StL | sp | 21 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 92.4 | .630 |
| Justin Wilson* | Det | mr | 31 | 0 | 0 | .000 | 0 | .000 | 5 | 12 | 2 | .167 | 18 | 18 | 4 | 20.1 | .591 |
| Dan Winkler | LAN | mr | 29 | 7 | 2 | .286 | 3 | .429 | 10 | 38 | 16 | .421 | 64 | 64 | 21 | 19.8 | .597 |
| Matt Wisler | Tam | sp | 26 | 7 | 6 | .857 | 1 | .143 | 2 | 23 | 7 | .304 | 29 | 29 | 15 | 17.9 | .621 |
| Nick Wittgren | StL | mr | 28 | 1 | 1 | 1.000 | 0 | .000 | 2 | 52 | 14 | .269 | 64 | 64 | 7 | 20.7 | .652 |
| Alex Wood* | | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 11 | 0 | 0 | 92.3 | .613 |
| Hunter Wood | | mr | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 10 | 0 | 0 | 82.6 | .643 |
| Jake Woodford | | sp | 22 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 16 | 0 | 0 | 81.3 | .578 |
| Brandon Woodruff | ChA | sp | 26 | 0 | 0 | .000 | 0 | .000 | 2 | 7 | 0 | .000 | 10 | 10 | 1 | 16.2 | .593 |
| Jordan Yamamoto | | sp | 23 | 2 | 1 | .500 | 1 | .500 | 0 | 3 | 2 | .667 | 22 | 9 | 4 | 60.8 | .622 |
| Ryan Yarbrough* | SD | mr | 27 | 8 | 6 | .750 | 1 | .125 | 21 | 44 | 11 | .250 | 80 | 80 | 30 | 22.4 | .620 |
| Kirby Yates | Bos | mr | 32 | 7 | 3 | .429 | 2 | .286 | 17 | 30 | 8 | .267 | 54 | 54 | 17 | 19.5 | .618 |
| Huascar Ynoa | Ari | sp | 21 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 2 | 0 | 0 | 74.5 | .490 |
| Daniel Zamora* | Cin | mr | 26 | 4 | 2 | .500 | 1 | .250 | 5 | 16 | 4 | .250 | 34 | 33 | 11 | 22.8 | .587 |
| T.J. Zeuch | Cin | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 3 | 0 | 0 | 77.7 | .674 |
| Jordan Zimmermann | Pit | sp | 33 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 1 | 1 | 1 | 10.0 | .600 |
