Org pitching register -- Inter-league
Regular season -- as of 9/30/2018
| Primary |
| Name | Team | P | Age | ERA | W | L | S | G | GS | CG | SHO | INN | H | R | ER | BB | K | HR | GDP |
| Albert Abreu | NYA | sp | 22 | 0.00 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1.0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 |
| Domingo Acevedo | Cle | sp | 24 | 4.17 | 3 | 5 | 0 | 12 | 11 | 0 | 0 | 69.0 | 66 | 38 | 32 | 21 | 59 | 11 | 4 |
| Chance Adams | KC | sp | 23 | 5.20 | 2 | 6 | 0 | 16 | 11 | 0 | 0 | 55.1 | 58 | 35 | 32 | 33 | 45 | 6 | 8 |
| Matt Albers | Mil | mr | 35 | 5.02 | 5 | 6 | 5 | 63 | 0 | 0 | 0 | 71.2 | 73 | 44 | 40 | 20 | 69 | 15 | 7 |
| Sandy Alcantara | Bos | sp | 22 | 9.96 | 4 | 4 | 6 | 52 | 0 | 0 | 0 | 59.2 | 85 | 73 | 66 | 43 | 42 | 16 | 8 |
| Scott Alexander* | LAA | mr | 28 | 2.62 | 6 | 7 | 11 | 48 | 0 | 0 | 0 | 58.1 | 46 | 22 | 17 | 21 | 46 | 3 | 6 |
| Kolby Allard* | Min | sp | 20 | 5.70 | 2 | 2 | 0 | 5 | 4 | 0 | 0 | 23.2 | 26 | 15 | 15 | 8 | 24 | 2 | 1 |
| Cody Allen | Bal | cl | 29 | 2.98 | 4 | 6 | 12 | 68 | 0 | 0 | 0 | 81.2 | 60 | 29 | 27 | 25 | 98 | 4 | 6 |
| Yency Almonte | Tam | sp | 24 | 5.40 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 3.1 | 6 | 4 | 2 | 3 | 1 | 1 | 1 |
| Dan Altavilla | LAN | mr | 25 | 5.06 | 0 | 3 | 2 | 16 | 0 | 0 | 0 | 16.0 | 12 | 12 | 9 | 10 | 16 | 2 | 2 |
| Jose Alvarado* | Ari | mr | 23 | 5.63 | 8 | 9 | 2 | 78 | 0 | 0 | 0 | 76.2 | 80 | 54 | 48 | 67 | 92 | 7 | 7 |
| Dario Alvarez* | Phi | mr | 29 | 3.79 | 5 | 5 | 2 | 41 | 0 | 0 | 0 | 59.1 | 45 | 25 | 25 | 39 | 93 | 8 | 9 |
| Jose Alvarez* | | mr | 29 | 2.49 | 5 | 3 | 0 | 58 | 0 | 0 | 0 | 83.0 | 67 | 28 | 23 | 17 | 85 | 5 | 8 |
| Yadier Alvarez | Tex | sp | 22 | 3.44 | 1 | 2 | 2 | 25 | 2 | 0 | 0 | 36.2 | 29 | 18 | 14 | 21 | 38 | 5 | 2 |
| Chase Anderson | NYN | sp | 30 | 4.65 | 7 | 12 | 1 | 36 | 30 | 0 | 0 | 176.0 | 192 | 113 | 91 | 54 | 147 | 30 | 17 |
| Tyler Anderson* | Bos | sp | 28 | 4.63 | 10 | 13 | 0 | 35 | 35 | 1 | 0 | 206.0 | 188 | 117 | 106 | 63 | 167 | 41 | 17 |
| Matt Andriese | ChN | sp | 28 | 3.49 | 8 | 5 | 1 | 38 | 19 | 0 | 0 | 142.0 | 148 | 62 | 55 | 26 | 121 | 18 | 12 |
| Victor Arano | Tex | mr | 23 | 4.94 | 3 | 8 | 7 | 90 | 0 | 0 | 0 | 114.2 | 116 | 65 | 63 | 37 | 115 | 23 | 10 |
| Chris Archer | SD | sp | 29 | 3.46 | 16 | 6 | 0 | 35 | 35 | 0 | 0 | 200.1 | 179 | 87 | 77 | 66 | 254 | 22 | 6 |
| Rogelio Armenteros | Sea | sp | 24 | 4.22 | 7 | 10 | 0 | 32 | 28 | 0 | 0 | 164.1 | 141 | 87 | 77 | 68 | 150 | 18 | 7 |
| Shawn Armstrong | | mr | 27 | 13.50 | 0 | 0 | 1 | 3 | 0 | 0 | 0 | 4.0 | 6 | 6 | 6 | 2 | 3 | 1 | 1 |
| Jake Arrieta | | sp | 32 | 4.48 | 9 | 10 | 0 | 34 | 34 | 0 | 0 | 183.0 | 180 | 99 | 91 | 70 | 186 | 37 | 5 |
| Luis Avilan* | | mr | 28 | 3.86 | 4 | 3 | 5 | 44 | 0 | 0 | 0 | 44.1 | 41 | 22 | 19 | 21 | 50 | 5 | 4 |
| Pedro Baez | Was | mr | 30 | 5.40 | 2 | 1 | 0 | 9 | 0 | 0 | 0 | 10.0 | 12 | 6 | 6 | 6 | 10 | 1 | 0 |
| Luke Bard | Atl | mr | 27 | 8.10 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 3.1 | 5 | 3 | 3 | 4 | 4 | 1 | 0 |
| Danny Barnes | SF | mr | 28 | 3.49 | 2 | 2 | 2 | 28 | 1 | 0 | 0 | 38.2 | 35 | 15 | 15 | 8 | 50 | 5 | 2 |
| Jacob Barnes | Tor | mr | 28 | 3.67 | 10 | 3 | 3 | 64 | 0 | 0 | 0 | 95.2 | 79 | 45 | 39 | 45 | 98 | 10 | 14 |
| Matt Barnes | | mr | 28 | 2.88 | 7 | 3 | 1 | 57 | 0 | 0 | 0 | 72.0 | 61 | 31 | 23 | 36 | 78 | 7 | 11 |
| Kyle Barraclough | Was | mr | 28 | 2.81 | 5 | 1 | 7 | 52 | 0 | 0 | 0 | 67.1 | 34 | 21 | 21 | 42 | 87 | 5 | 1 |
| Aaron Barrett | Atl | mr | 30 | 6.97 | 1 | 0 | 0 | 6 | 0 | 0 | 0 | 10.1 | 13 | 8 | 8 | 5 | 6 | 1 | 2 |
| Jaime Barria | | sp | 21 | 6.61 | 1 | 1 | 1 | 9 | 5 | 0 | 0 | 32.2 | 50 | 28 | 24 | 7 | 19 | 6 | 1 |
| Trevor Bauer | NYA | sp | 27 | 4.05 | 12 | 7 | 0 | 27 | 26 | 0 | 0 | 151.0 | 127 | 71 | 68 | 52 | 163 | 19 | 11 |
| Buddy Baumann* | SF | mr | 30 | 3.10 | 8 | 5 | 0 | 18 | 18 | 0 | 0 | 104.2 | 77 | 40 | 36 | 43 | 103 | 7 | 11 |
| Cam Bedrosian | | mr | 26 | 3.38 | 2 | 3 | 3 | 37 | 0 | 0 | 0 | 53.1 | 44 | 24 | 20 | 20 | 64 | 5 | 2 |
| Tyler Beede | NYA | sp | 25 | 5.21 | 6 | 6 | 2 | 24 | 9 | 0 | 0 | 67.1 | 71 | 42 | 39 | 28 | 59 | 12 | 9 |
| Matt Belisle | NYA | mr | 38 | 2.41 | 3 | 2 | 8 | 40 | 0 | 0 | 0 | 56.0 | 37 | 16 | 15 | 8 | 42 | 4 | 4 |
| Jose Berrios | Cle | sp | 24 | 3.58 | 5 | 7 | 0 | 26 | 25 | 0 | 0 | 150.2 | 129 | 68 | 60 | 44 | 146 | 20 | 16 |
| Dellin Betances | NYA | cl | 30 | 2.24 | 4 | 3 | 24 | 60 | 0 | 0 | 0 | 68.1 | 39 | 17 | 17 | 31 | 91 | 3 | 2 |
| Chad Bettis | LAA | sp | 29 | 3.11 | 15 | 8 | 0 | 28 | 28 | 0 | 0 | 170.2 | 134 | 72 | 59 | 34 | 115 | 18 | 13 |
| Joe Biagini | NYN | sp | 28 | 3.64 | 2 | 4 | 1 | 29 | 11 | 0 | 0 | 76.2 | 68 | 35 | 31 | 30 | 62 | 9 | 3 |
| Jesse Biddle* | Col | mr | 26 | 6.70 | 3 | 2 | 4 | 41 | 0 | 0 | 0 | 49.2 | 54 | 39 | 37 | 23 | 46 | 8 | 9 |
| Shane Bieber | | sp | 23 | 3.70 | 9 | 9 | 0 | 34 | 24 | 1 | 1 | 165.1 | 163 | 77 | 68 | 17 | 102 | 15 | 9 |
| Paul Blackburn | ChA | sp | 24 | 3.73 | 2 | 2 | 0 | 5 | 5 | 0 | 0 | 31.1 | 25 | 13 | 13 | 9 | 20 | 2 | 0 |
| Jerry Blevins* | Sea | mr | 34 | 2.34 | 0 | 2 | 3 | 61 | 0 | 0 | 0 | 50.0 | 44 | 14 | 13 | 28 | 67 | 2 | 1 |
| Ryan Borucki* | LAN | sp | 24 | 6.48 | 1 | 4 | 0 | 18 | 6 | 0 | 0 | 41.2 | 51 | 30 | 30 | 20 | 43 | 10 | 3 |
| Matthew Bowman | Min | mr | 27 | 3.02 | 4 | 2 | 2 | 37 | 0 | 0 | 0 | 53.2 | 43 | 21 | 18 | 13 | 43 | 5 | 5 |
| Brad Boxberger | LAA | mr | 30 | 2.25 | 1 | 0 | 0 | 5 | 0 | 0 | 0 | 8.0 | 7 | 2 | 2 | 5 | 11 | 2 | 1 |
| Matt Boyd* | | sp | 27 | 3.36 | 6 | 7 | 0 | 17 | 17 | 0 | 0 | 96.1 | 104 | 39 | 36 | 23 | 75 | 8 | 2 |
| Brad Brach | SD | cl | 32 | 2.54 | 2 | 6 | 28 | 77 | 0 | 0 | 0 | 85.0 | 61 | 28 | 24 | 35 | 94 | 9 | 9 |
| Silvino Bracho | | mr | 25 | 5.70 | 2 | 1 | 0 | 20 | 0 | 0 | 0 | 23.2 | 23 | 15 | 15 | 13 | 37 | 7 | 1 |
| Chasen Bradford | Tam | mr | 28 | 4.01 | 1 | 0 | 1 | 26 | 0 | 0 | 0 | 33.2 | 40 | 16 | 15 | 9 | 17 | 1 | 6 |
| Archie Bradley | Ari | mr | 25 | 5.26 | 4 | 8 | 18 | 79 | 0 | 0 | 0 | 87.1 | 98 | 54 | 51 | 27 | 98 | 17 | 5 |
| Steven Brault* | ChN | sp | 26 | 3.61 | 6 | 3 | 2 | 29 | 12 | 0 | 0 | 84.2 | 80 | 44 | 34 | 34 | 66 | 11 | 6 |
| John Brebbia | | mr | 28 | 6.00 | 1 | 1 | 1 | 22 | 0 | 0 | 0 | 33.0 | 39 | 22 | 22 | 3 | 29 | 8 | 0 |
| Zach Britton* | | cl | 30 | 1.64 | 3 | 1 | 8 | 32 | 0 | 0 | 0 | 38.1 | 22 | 7 | 7 | 8 | 38 | 1 | 2 |
| Clay Buchholz | NYN | sp | 33 | 7.34 | 1 | 4 | 0 | 8 | 5 | 0 | 0 | 34.1 | 44 | 33 | 28 | 12 | 26 | 9 | 3 |
| Ryan Buchter* | SF | mr | 31 | 1.74 | 0 | 0 | 0 | 8 | 0 | 0 | 0 | 10.1 | 7 | 3 | 2 | 4 | 11 | 0 | 0 |
| Walker Buehler | Cle | sp | 23 | 4.29 | 4 | 8 | 0 | 15 | 15 | 0 | 0 | 71.1 | 65 | 40 | 34 | 45 | 102 | 11 | 3 |
| Madison Bumgarner* | Tor | sp | 28 | 3.82 | 5 | 7 | 0 | 26 | 26 | 1 | 0 | 148.1 | 139 | 68 | 63 | 22 | 164 | 24 | 8 |
| Aaron Bummer* | | mr | 24 | 5.40 | 2 | 1 | 1 | 9 | 0 | 0 | 0 | 10.0 | 13 | 6 | 6 | 9 | 10 | 1 | 3 |
| Dylan Bundy | LAA | sp | 25 | 4.00 | 14 | 10 | 0 | 35 | 35 | 2 | 0 | 214.0 | 197 | 98 | 95 | 50 | 202 | 28 | 12 |
| Nick Burdi | LAA | mr | 25 | 2.08 | 1 | 0 | 0 | 5 | 0 | 0 | 0 | 8.2 | 7 | 2 | 2 | 0 | 11 | 1 | 0 |
| Corbin Burnes | Ari | sp | 23 | 3.49 | 7 | 15 | 0 | 35 | 32 | 0 | 0 | 180.1 | 147 | 84 | 70 | 88 | 200 | 19 | 14 |
| Beau Burrows | Cle | sp | 21 | 8.13 | 1 | 8 | 0 | 14 | 13 | 0 | 0 | 65.1 | 85 | 65 | 59 | 36 | 44 | 12 | 11 |
| Matt Bush | SF | mr | 32 | 2.81 | 6 | 3 | 5 | 68 | 0 | 0 | 0 | 86.1 | 58 | 28 | 27 | 28 | 92 | 2 | 5 |
| Genesis Cabrera* | Ari | sp | 21 | 5.96 | 1 | 6 | 2 | 62 | 2 | 0 | 0 | 68.0 | 74 | 50 | 45 | 49 | 46 | 8 | 7 |
| Carter Capps | Phi | mr | 27 | 3.72 | 2 | 1 | 1 | 7 | 0 | 0 | 0 | 9.2 | 9 | 4 | 4 | 4 | 10 | 1 | 0 |
| Carlos Carrasco | | sp | 31 | 2.01 | 15 | 8 | 0 | 33 | 33 | 0 | 0 | 201.2 | 136 | 48 | 45 | 45 | 244 | 16 | 12 |
| Cody Carroll | NYN | mr | 25 | 5.87 | 0 | 1 | 0 | 6 | 0 | 0 | 0 | 7.2 | 7 | 5 | 5 | 12 | 7 | 0 | 2 |
| Andrew Cashner | Bal | sp | 31 | 5.91 | 2 | 8 | 1 | 24 | 9 | 0 | 0 | 77.2 | 94 | 55 | 51 | 18 | 59 | 27 | 3 |
| Diego Castillo | LAN | mr | 24 | 2.48 | 8 | 5 | 6 | 87 | 0 | 0 | 0 | 119.2 | 99 | 43 | 33 | 31 | 110 | 12 | 12 |
| Jose Castillo* | Tam | mr | 22 | 1.38 | 1 | 0 | 6 | 32 | 0 | 0 | 0 | 32.2 | 20 | 5 | 5 | 13 | 25 | 2 | 0 |
| Luis Castillo | | sp | 25 | 2.78 | 13 | 9 | 0 | 32 | 31 | 3 | 3 | 207.0 | 157 | 72 | 64 | 49 | 206 | 14 | 16 |
| Miguel Castro | Tex | mr | 23 | 4.51 | 5 | 4 | 9 | 62 | 0 | 0 | 0 | 101.2 | 123 | 60 | 51 | 26 | 71 | 16 | 14 |
| Simon Castro | LAN | mr | 30 | 4.90 | 4 | 7 | 4 | 60 | 0 | 0 | 0 | 68.0 | 56 | 37 | 37 | 32 | 85 | 11 | 4 |
| Brett Cecil* | Det | mr | 31 | 3.77 | 1 | 2 | 3 | 34 | 0 | 0 | 0 | 43.0 | 39 | 19 | 18 | 12 | 45 | 5 | 1 |
| Xavier Cedeno* | Mia | mr | 31 | 5.68 | 0 | 3 | 2 | 45 | 0 | 0 | 0 | 38.0 | 49 | 25 | 24 | 13 | 45 | 2 | 3 |
| Luis Cessa | | sp | 26 | 5.27 | 1 | 3 | 0 | 9 | 3 | 0 | 0 | 27.1 | 29 | 22 | 16 | 10 | 23 | 6 | 2 |
| Jhoulys Chacin | Det | sp | 30 | 4.06 | 8 | 5 | 0 | 16 | 16 | 0 | 0 | 93.0 | 95 | 48 | 42 | 25 | 73 | 10 | 4 |
| Andrew Chafin* | Was | mr | 28 | 1.47 | 7 | 1 | 4 | 51 | 0 | 0 | 0 | 61.1 | 41 | 11 | 10 | 19 | 63 | 3 | 9 |
| Aroldis Chapman* | Oak | cl | 30 | 2.61 | 2 | 4 | 17 | 50 | 0 | 0 | 0 | 51.2 | 29 | 16 | 15 | 32 | 82 | 6 | 0 |
| J.T. Chargois | LAN | mr | 27 | 3.63 | 0 | 1 | 2 | 15 | 0 | 0 | 0 | 17.1 | 15 | 7 | 7 | 5 | 15 | 2 | 4 |
| Tyler Chatwood | | sp | 28 | 4.15 | 9 | 10 | 0 | 28 | 28 | 0 | 0 | 149.2 | 141 | 81 | 69 | 77 | 119 | 21 | 8 |
| Jesse Chavez | StL | sp | 34 | 4.46 | 7 | 4 | 5 | 72 | 0 | 0 | 0 | 84.2 | 97 | 42 | 42 | 30 | 69 | 11 | 5 |
| Wei-Yin Chen* | Min | sp | 32 | 3.50 | 12 | 5 | 0 | 27 | 27 | 1 | 1 | 167.1 | 167 | 72 | 65 | 32 | 140 | 23 | 12 |
| Yonny Chirinos | ChN | sp | 24 | 5.10 | 2 | 5 | 2 | 43 | 2 | 0 | 0 | 67.0 | 81 | 40 | 38 | 17 | 46 | 7 | 8 |
| Adam Cimber | LAA | mr | 27 | 3.07 | 1 | 1 | 2 | 29 | 0 | 0 | 0 | 44.0 | 48 | 21 | 15 | 7 | 31 | 3 | 5 |
| Tony Cingrani* | Hou | mr | 28 | 5.66 | 5 | 5 | 7 | 54 | 0 | 0 | 0 | 89.0 | 100 | 60 | 56 | 40 | 89 | 19 | 7 |
| Steve Cishek | Pit | mr | 32 | 2.76 | 7 | 4 | 4 | 65 | 0 | 0 | 0 | 75.0 | 63 | 24 | 23 | 20 | 86 | 8 | 7 |
| Brian Clark* | | mr | 25 | 1.91 | 8 | 3 | 3 | 64 | 0 | 0 | 0 | 99.0 | 88 | 29 | 21 | 34 | 80 | 4 | 14 |
| Taylor Clarke | Mil | sp | 25 | 6.14 | 1 | 1 | 0 | 3 | 3 | 0 | 0 | 14.2 | 13 | 10 | 10 | 5 | 11 | 4 | 1 |
| Alex Claudio* | Cin | mr | 26 | 4.42 | 2 | 8 | 32 | 68 | 0 | 0 | 0 | 77.1 | 76 | 41 | 38 | 20 | 58 | 8 | 12 |
| Michael Clevinger | Bos | sp | 27 | 4.93 | 4 | 8 | 5 | 61 | 3 | 0 | 0 | 91.1 | 79 | 57 | 50 | 46 | 94 | 19 | 5 |
| Tyler Clippard | Min | mr | 33 | 2.95 | 3 | 2 | 4 | 52 | 0 | 0 | 0 | 64.0 | 47 | 25 | 21 | 30 | 87 | 5 | 1 |
| Corbin Clouse* | | mr | 23 | 5.40 | 0 | 2 | 0 | 7 | 0 | 0 | 0 | 13.1 | 11 | 8 | 8 | 13 | 12 | 3 | 1 |
| Alex Cobb | | sp | 30 | 3.71 | 9 | 12 | 0 | 31 | 31 | 0 | 0 | 189.1 | 174 | 90 | 78 | 42 | 160 | 17 | 13 |
| Gerrit Cole | LAA | sp | 27 | 2.58 | 19 | 7 | 0 | 35 | 35 | 3 | 2 | 241.0 | 178 | 73 | 69 | 39 | 255 | 21 | 14 |
| Alex Colome | SF | cl | 29 | 3.98 | 5 | 6 | 5 | 66 | 0 | 0 | 0 | 86.0 | 77 | 39 | 38 | 30 | 68 | 6 | 10 |
| Adam Conley* | | sp | 28 | 4.76 | 3 | 2 | 1 | 11 | 5 | 0 | 0 | 34.0 | 35 | 20 | 18 | 10 | 29 | 5 | 5 |
| Patrick Corbin* | | sp | 28 | 3.89 | 11 | 7 | 0 | 37 | 28 | 0 | 0 | 180.1 | 167 | 89 | 78 | 58 | 171 | 25 | 12 |
| Nestor Cortes* | Tam | mr | 23 | 5.72 | 6 | 7 | 3 | 68 | 1 | 0 | 0 | 96.0 | 91 | 62 | 61 | 37 | 94 | 20 | 10 |
| Daniel Coulombe* | ChA | mr | 28 | 3.09 | 6 | 1 | 0 | 53 | 0 | 0 | 0 | 64.0 | 50 | 24 | 22 | 12 | 69 | 9 | 5 |
| Kyle Crick | Cle | mr | 25 | 4.35 | 5 | 3 | 2 | 57 | 0 | 0 | 0 | 78.2 | 79 | 39 | 38 | 50 | 92 | 11 | 7 |
| Johnny Cueto | Mil | sp | 32 | 6.29 | 4 | 6 | 0 | 16 | 16 | 0 | 0 | 78.2 | 98 | 60 | 55 | 31 | 69 | 10 | 8 |
| John Curtiss | Was | mr | 25 | 3.62 | 11 | 3 | 0 | 60 | 0 | 0 | 0 | 79.2 | 60 | 35 | 32 | 38 | 89 | 6 | 9 |
| Yu Darvish | NYA | sp | 31 | 3.45 | 4 | 2 | 0 | 10 | 10 | 1 | 1 | 62.2 | 48 | 27 | 24 | 15 | 68 | 10 | 4 |
| Zach Davies | | sp | 25 | 3.57 | 10 | 4 | 0 | 21 | 21 | 1 | 1 | 126.0 | 126 | 56 | 50 | 36 | 105 | 17 | 13 |
| Austin Davis* | Oak | mr | 25 | 0.00 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 2.0 | 1 | 0 | 0 | 0 | 4 | 0 | 0 |
| Wade Davis | Det | cl | 32 | 2.65 | 7 | 2 | 5 | 56 | 0 | 0 | 0 | 78.0 | 53 | 23 | 23 | 24 | 92 | 11 | 13 |
| Enyel de los Santos | Oak | sp | 22 | 5.36 | 2 | 4 | 5 | 27 | 0 | 0 | 0 | 43.2 | 45 | 29 | 26 | 15 | 33 | 4 | 6 |
| Jacob deGrom | Tor | sp | 30 | 3.44 | 17 | 6 | 0 | 38 | 38 | 2 | 1 | 222.1 | 197 | 88 | 85 | 52 | 233 | 27 | 21 |
| Randall Delgado | Mil | mr | 28 | 2.80 | 3 | 2 | 0 | 16 | 16 | 0 | 0 | 86.2 | 72 | 32 | 27 | 29 | 80 | 7 | 6 |
| Anthony DeSclafani | Ari | sp | 28 | 3.52 | 8 | 6 | 0 | 22 | 22 | 1 | 0 | 140.2 | 123 | 61 | 55 | 40 | 100 | 12 | 10 |
| Chris Devenski | Det | mr | 27 | 1.85 | 9 | 3 | 18 | 54 | 0 | 0 | 0 | 77.2 | 52 | 17 | 16 | 14 | 92 | 6 | 6 |
| Dayan Diaz | NYA | mr | 29 | 1.32 | 2 | 0 | 0 | 11 | 0 | 0 | 0 | 13.2 | 13 | 3 | 2 | 2 | 17 | 1 | 2 |
| Edwin Diaz | Cle | cl | 24 | 2.96 | 4 | 6 | 18 | 62 | 0 | 0 | 0 | 76.0 | 59 | 27 | 25 | 26 | 118 | 4 | 4 |
| Miguel Diaz | Tex | mr | 23 | 6.69 | 0 | 4 | 0 | 25 | 0 | 0 | 0 | 35.0 | 39 | 28 | 26 | 14 | 28 | 5 | 4 |
| Jake Diekman* | SF | mr | 31 | 3.90 | 5 | 1 | 7 | 50 | 0 | 0 | 0 | 67.0 | 50 | 32 | 29 | 38 | 86 | 5 | 9 |
| Marcos Diplan | Atl | sp | 21 | 3.00 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 3.0 | 2 | 1 | 1 | 0 | 2 | 0 | 0 |
| Seranthony Dominguez | | sp | 23 | 4.38 | 2 | 5 | 0 | 13 | 8 | 0 | 0 | 51.1 | 47 | 29 | 25 | 24 | 56 | 8 | 2 |
| Sean Doolittle* | SF | cl | 31 | 3.86 | 6 | 9 | 28 | 64 | 0 | 0 | 0 | 72.1 | 73 | 32 | 31 | 13 | 110 | 15 | 3 |
| Brian Duensing* | StL | mr | 35 | 1.19 | 4 | 3 | 1 | 33 | 0 | 0 | 0 | 37.2 | 25 | 6 | 5 | 13 | 25 | 2 | 3 |
| Danny Duffy* | SF | sp | 29 | 2.98 | 14 | 9 | 0 | 34 | 34 | 0 | 0 | 199.0 | 149 | 71 | 66 | 56 | 184 | 19 | 18 |
| Zach Duke* | KC | mr | 35 | 2.84 | 5 | 5 | 11 | 67 | 0 | 0 | 0 | 57.0 | 42 | 22 | 18 | 23 | 59 | 4 | 9 |
| Mike Dunn* | Min | mr | 33 | 0.93 | 1 | 1 | 2 | 20 | 0 | 0 | 0 | 19.1 | 13 | 5 | 2 | 9 | 22 | 1 | 0 |
| Sam Dyson | Tam | cl | 30 | 3.28 | 0 | 3 | 6 | 21 | 0 | 0 | 0 | 24.2 | 18 | 13 | 9 | 10 | 15 | 2 | 4 |
| Mark Ecker | Bal | mr | 23 | 22.50 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 2.0 | 4 | 5 | 5 | 3 | 0 | 1 | 0 |
| Carl Edwards Jr. | Mia | mr | 26 | 2.32 | 6 | 4 | 10 | 58 | 0 | 0 | 0 | 66.0 | 40 | 22 | 17 | 38 | 98 | 6 | 7 |
| Zach Eflin | Tam | sp | 24 | 4.66 | 4 | 7 | 0 | 20 | 20 | 0 | 0 | 110.0 | 124 | 66 | 57 | 23 | 77 | 20 | 10 |
| Jerad Eickhoff | LAA | sp | 27 | 3.00 | 3 | 1 | 0 | 5 | 5 | 0 | 0 | 33.0 | 31 | 11 | 11 | 7 | 22 | 5 | 2 |
| Nathan Eovaldi | Ari | sp | 28 | 4.78 | 1 | 6 | 3 | 84 | 3 | 0 | 0 | 116.2 | 146 | 75 | 62 | 36 | 98 | 14 | 7 |
| Robbie Erlin* | Tex | sp | 27 | 4.90 | 9 | 16 | 0 | 33 | 30 | 0 | 0 | 178.0 | 198 | 105 | 97 | 41 | 144 | 25 | 18 |
| Luis Escobar | Bos | sp | 22 | 7.27 | 0 | 3 | 2 | 15 | 0 | 0 | 0 | 17.1 | 19 | 14 | 14 | 11 | 11 | 3 | 1 |
| Thomas Eshelman | ChA | sp | 24 | 4.27 | 5 | 10 | 0 | 18 | 18 | 1 | 0 | 116.0 | 111 | 59 | 55 | 18 | 100 | 21 | 10 |
| Carlos Estevez | Min | mr | 25 | 5.25 | 0 | 0 | 0 | 9 | 0 | 0 | 0 | 12.0 | 10 | 9 | 7 | 6 | 9 | 1 | 1 |
| Marco Estrada | Cin | sp | 34 | 2.56 | 12 | 3 | 0 | 21 | 21 | 0 | 0 | 130.0 | 78 | 37 | 37 | 44 | 116 | 16 | 7 |
| Jeurys Familia | | cl | 28 | 4.72 | 3 | 7 | 17 | 56 | 0 | 0 | 0 | 61.0 | 62 | 33 | 32 | 27 | 66 | 8 | 8 |
| Jacob Faria | Tam | sp | 24 | 4.85 | 4 | 7 | 0 | 14 | 14 | 0 | 0 | 78.0 | 77 | 49 | 42 | 30 | 87 | 12 | 5 |
| Erick Fedde | Cle | sp | 25 | 7.23 | 3 | 6 | 0 | 17 | 10 | 0 | 0 | 61.0 | 70 | 54 | 49 | 25 | 41 | 9 | 14 |
| Michael Feliz | Det | mr | 25 | 4.13 | 9 | 5 | 1 | 32 | 26 | 0 | 0 | 167.2 | 139 | 82 | 77 | 65 | 212 | 28 | 11 |
| Riley Ferrell | Oak | mr | 24 | 2.30 | 0 | 0 | 2 | 12 | 0 | 0 | 0 | 15.2 | 12 | 4 | 4 | 9 | 11 | 1 | 5 |
| Josh Fields | Phi | mr | 32 | 3.18 | 5 | 3 | 9 | 66 | 0 | 0 | 0 | 73.2 | 65 | 29 | 26 | 21 | 93 | 5 | 5 |
| Mike Fiers | StL | sp | 33 | 4.20 | 6 | 9 | 0 | 31 | 21 | 0 | 0 | 143.2 | 134 | 71 | 67 | 36 | 124 | 27 | 7 |
| Brandon Finnegan* | Oak | sp | 25 | 3.30 | 6 | 3 | 0 | 12 | 12 | 0 | 0 | 71.0 | 51 | 33 | 26 | 27 | 63 | 10 | 5 |
| Doug Fister | Mil | sp | 34 | 2.91 | 4 | 2 | 0 | 10 | 10 | 0 | 0 | 58.2 | 57 | 22 | 19 | 17 | 39 | 2 | 5 |
| Jack Flaherty | Bal | sp | 22 | 4.31 | 8 | 14 | 0 | 32 | 31 | 0 | 0 | 190.0 | 182 | 95 | 91 | 58 | 172 | 26 | 11 |
| Chris Flexen | Hou | sp | 23 | 5.35 | 3 | 8 | 3 | 39 | 14 | 0 | 0 | 148.0 | 161 | 96 | 88 | 41 | 130 | 26 | 5 |
| Jose Flores | Cin | mr | 25 | 0.00 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 2.0 | 0 | 0 | 0 | 2 | 2 | 0 | 0 |
| Brian Flynn* | Phi | mr | 28 | 3.34 | 15 | 9 | 2 | 40 | 31 | 0 | 0 | 202.0 | 171 | 89 | 75 | 71 | 187 | 16 | 18 |
| Mike Foltynewicz | | sp | 26 | 3.51 | 8 | 4 | 0 | 24 | 19 | 0 | 0 | 123.0 | 108 | 52 | 48 | 39 | 116 | 12 | 13 |
| Wilmer Font | SF | sp | 28 | 3.40 | 10 | 11 | 0 | 35 | 35 | 1 | 0 | 193.1 | 165 | 79 | 73 | 51 | 209 | 24 | 9 |
| Kyle Freeland* | ChA | sp | 25 | 4.59 | 4 | 13 | 0 | 27 | 27 | 0 | 0 | 153.0 | 141 | 86 | 78 | 52 | 118 | 19 | 13 |
| Sam Freeman* | NYN | mr | 31 | 2.13 | 3 | 1 | 0 | 23 | 0 | 0 | 0 | 25.1 | 20 | 7 | 6 | 14 | 33 | 2 | 4 |
| Max Fried* | Ari | sp | 24 | 9.23 | 1 | 3 | 0 | 27 | 0 | 0 | 0 | 26.1 | 37 | 27 | 27 | 20 | 23 | 3 | 5 |
| Jace Fry* | | mr | 24 | 2.63 | 4 | 3 | 1 | 34 | 0 | 0 | 0 | 48.0 | 41 | 17 | 14 | 30 | 45 | 1 | 6 |
| Carson Fulmer | ChA | sp | 24 | 6.75 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 2.2 | 1 | 2 | 2 | 2 | 2 | 0 | 0 |
| Michael Fulmer | Mia | sp | 25 | 2.27 | 10 | 9 | 0 | 28 | 28 | 2 | 2 | 182.0 | 138 | 55 | 46 | 36 | 176 | 13 | 16 |
| Giovanny Gallegos | SF | mr | 26 | 3.96 | 6 | 4 | 6 | 65 | 0 | 0 | 0 | 100.0 | 90 | 47 | 44 | 27 | 140 | 9 | 6 |
| John Gant | Hou | sp | 25 | 4.99 | 6 | 14 | 1 | 33 | 16 | 1 | 0 | 131.2 | 121 | 80 | 73 | 40 | 139 | 20 | 7 |
| Jaime Garcia* | Atl | sp | 31 | 4.10 | 9 | 17 | 0 | 34 | 34 | 3 | 0 | 219.2 | 217 | 107 | 100 | 74 | 200 | 23 | 26 |
| Luis Garcia | Bos | mr | 31 | 3.73 | 4 | 6 | 16 | 52 | 0 | 0 | 0 | 62.2 | 73 | 31 | 26 | 17 | 64 | 4 | 8 |
| Yimi Garcia | SD | mr | 27 | 4.39 | 1 | 0 | 3 | 38 | 0 | 0 | 0 | 41.0 | 39 | 21 | 20 | 9 | 41 | 9 | 0 |
| Nick Gardewine | Cle | mr | 24 | 3.86 | 0 | 0 | 0 | 13 | 0 | 0 | 0 | 18.2 | 22 | 12 | 8 | 12 | 17 | 2 | 3 |
| Amir Garrett* | Tex | sp | 26 | 5.84 | 5 | 16 | 1 | 51 | 20 | 0 | 0 | 143.1 | 145 | 104 | 93 | 71 | 143 | 28 | 10 |
| Matt Garza | Atl | sp | 34 | 5.40 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1.2 | 3 | 1 | 1 | 1 | 0 | 0 | 0 |
| Kevin Gausman | | sp | 27 | 4.38 | 12 | 8 | 0 | 33 | 33 | 1 | 1 | 195.0 | 183 | 99 | 95 | 69 | 213 | 33 | 18 |
| Cory Gearrin | Atl | mr | 32 | 4.09 | 5 | 6 | 9 | 60 | 0 | 0 | 0 | 88.0 | 100 | 48 | 40 | 30 | 80 | 11 | 14 |
| Domingo German | Oak | sp | 25 | 4.19 | 7 | 2 | 0 | 25 | 9 | 0 | 0 | 77.1 | 84 | 37 | 36 | 10 | 82 | 9 | 6 |
| Ian Gibaut | | mr | 24 | 6.38 | 1 | 1 | 1 | 13 | 0 | 0 | 0 | 18.1 | 20 | 14 | 13 | 6 | 13 | 4 | 1 |
| Kyle Gibson | Bos | sp | 30 | 3.92 | 8 | 10 | 0 | 36 | 36 | 1 | 1 | 206.2 | 200 | 94 | 90 | 71 | 157 | 19 | 33 |
| Ken Giles | Sea | cl | 27 | 2.85 | 2 | 2 | 15 | 73 | 0 | 0 | 0 | 82.0 | 62 | 26 | 26 | 16 | 125 | 14 | 0 |
| Lucas Giolito | Col | sp | 23 | 5.66 | 7 | 11 | 0 | 39 | 30 | 0 | 0 | 167.0 | 198 | 113 | 105 | 58 | 171 | 23 | 7 |
| Mychal Givens | Cin | mr | 28 | 3.56 | 6 | 5 | 3 | 71 | 0 | 0 | 0 | 81.0 | 69 | 34 | 32 | 32 | 97 | 8 | 8 |
| Tyler Glasnow | Oak | sp | 24 | 3.18 | 13 | 6 | 1 | 34 | 33 | 0 | 0 | 187.0 | 148 | 72 | 66 | 77 | 238 | 13 | 12 |
| Koda Glover | Cle | mr | 25 | 6.31 | 0 | 2 | 0 | 16 | 0 | 0 | 0 | 25.2 | 30 | 20 | 18 | 5 | 24 | 8 | 2 |
| Zack Godley | NYN | sp | 28 | 3.90 | 9 | 15 | 1 | 43 | 25 | 0 | 0 | 161.2 | 144 | 81 | 70 | 50 | 166 | 24 | 23 |
| Luiz Gohara* | Sea | sp | 21 | 2.56 | 1 | 0 | 0 | 5 | 5 | 0 | 0 | 31.2 | 24 | 9 | 9 | 12 | 34 | 1 | 2 |
| Austin Gomber* | StL | sp | 24 | 3.10 | 15 | 7 | 0 | 33 | 32 | 0 | 0 | 183.0 | 144 | 70 | 63 | 73 | 146 | 22 | 14 |
| Stephen Gonsalves* | KC | sp | 23 | 4.04 | 5 | 18 | 0 | 34 | 33 | 1 | 0 | 178.0 | 147 | 91 | 80 | 85 | 157 | 19 | 6 |
| Marco Gonzales* | | sp | 26 | 3.42 | 4 | 8 | 0 | 20 | 15 | 0 | 0 | 92.0 | 90 | 40 | 35 | 31 | 80 | 7 | 13 |
| Gio Gonzalez* | Cin | sp | 32 | 2.96 | 12 | 10 | 0 | 34 | 34 | 0 | 0 | 204.0 | 148 | 73 | 67 | 72 | 198 | 15 | 15 |
| Nick Goody | Oak | mr | 26 | 0.00 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 4.2 | 0 | 0 | 0 | 3 | 10 | 0 | 0 |
| Matt Grace* | LAA | mr | 29 | 1.04 | 0 | 0 | 1 | 11 | 0 | 0 | 0 | 17.1 | 15 | 3 | 2 | 3 | 11 | 0 | 3 |
| Kendall Graveman | Cle | sp | 27 | 2.34 | 4 | 3 | 0 | 10 | 10 | 0 | 0 | 69.1 | 45 | 20 | 18 | 21 | 52 | 4 | 9 |
| Jon Gray | | sp | 26 | 3.05 | 15 | 7 | 0 | 33 | 32 | 0 | 0 | 182.2 | 158 | 73 | 62 | 44 | 182 | 18 | 9 |
| Sonny Gray | SF | sp | 28 | 3.60 | 11 | 12 | 0 | 37 | 37 | 0 | 0 | 212.2 | 188 | 92 | 85 | 67 | 204 | 27 | 13 |
| Chad Green | ChN | mr | 27 | 3.54 | 4 | 8 | 18 | 69 | 0 | 0 | 0 | 76.1 | 67 | 36 | 30 | 30 | 98 | 9 | 7 |
| Shane Greene | Bal | mr | 29 | 2.72 | 1 | 0 | 2 | 47 | 0 | 0 | 0 | 46.1 | 31 | 14 | 14 | 20 | 43 | 5 | 7 |
| Zack Greinke | Bal | sp | 34 | 3.40 | 12 | 13 | 0 | 31 | 31 | 1 | 1 | 214.1 | 186 | 89 | 81 | 45 | 202 | 31 | 23 |
| Robert Gsellman | Mia | sp | 24 | 3.29 | 0 | 0 | 0 | 8 | 1 | 0 | 0 | 13.2 | 14 | 5 | 5 | 2 | 11 | 1 | 1 |
| Deolis Guerra | Atl | mr | 29 | 0.00 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1.0 | 2 | 2 | 0 | 0 | 0 | 0 | 0 |
| Junior Guerra | ChN | sp | 33 | 6.55 | 1 | 1 | 0 | 5 | 1 | 0 | 0 | 11.0 | 11 | 8 | 8 | 7 | 15 | 1 | 1 |
| Josh Hader* | Oak | mr | 24 | 3.08 | 7 | 2 | 5 | 49 | 0 | 0 | 0 | 64.1 | 42 | 25 | 22 | 30 | 110 | 12 | 3 |
| Matt Hall* | ChN | sp | 24 | 9.00 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1.0 | 2 | 1 | 1 | 1 | 1 | 0 | 0 |
| Cole Hamels* | Cin | sp | 34 | 4.03 | 11 | 10 | 0 | 34 | 34 | 0 | 0 | 192.0 | 164 | 94 | 86 | 62 | 172 | 21 | 16 |
| Jason Hammel | Sea | sp | 35 | 5.10 | 11 | 18 | 0 | 37 | 34 | 0 | 0 | 213.1 | 218 | 135 | 121 | 51 | 183 | 40 | 7 |
| Brad Hand* | SD | cl | 28 | 3.76 | 9 | 4 | 9 | 69 | 0 | 0 | 0 | 79.0 | 73 | 38 | 33 | 29 | 109 | 8 | 4 |
| Alec Hansen | KC | sp | 23 | 2.25 | 1 | 3 | 0 | 10 | 1 | 0 | 0 | 20.0 | 15 | 6 | 5 | 8 | 23 | 2 | 0 |
| J.A. Happ* | ChN | sp | 35 | 2.77 | 4 | 8 | 0 | 31 | 31 | 0 | 0 | 188.2 | 151 | 71 | 58 | 69 | 213 | 16 | 11 |
| Blaine Hardy* | Mil | mr | 31 | 4.39 | 5 | 5 | 2 | 63 | 1 | 0 | 0 | 84.0 | 80 | 42 | 41 | 29 | 73 | 6 | 7 |
| Will Harris | Det | mr | 33 | 4.14 | 4 | 5 | 1 | 33 | 0 | 0 | 0 | 45.2 | 51 | 21 | 21 | 8 | 63 | 9 | 2 |
| Hunter Harvey | Tex | sp | 23 | 5.73 | 2 | 10 | 1 | 27 | 22 | 0 | 0 | 113.0 | 114 | 79 | 72 | 67 | 140 | 19 | 10 |
| Matt Harvey | | sp | 29 | 3.95 | 12 | 5 | 0 | 28 | 28 | 0 | 0 | 159.1 | 164 | 73 | 70 | 34 | 129 | 17 | 10 |
| Andrew Heaney* | | sp | 27 | 3.45 | 8 | 5 | 0 | 29 | 29 | 0 | 0 | 164.1 | 159 | 73 | 63 | 47 | 152 | 18 | 14 |
| Taylor Hearn* | KC | sp | 23 | 4.82 | 3 | 8 | 0 | 17 | 14 | 0 | 0 | 71.0 | 62 | 48 | 38 | 39 | 73 | 16 | 4 |
| Ben Heller | ChA | mr | 26 | 4.76 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 5.2 | 8 | 3 | 3 | 0 | 7 | 1 | 2 |
| Jeremy Hellickson | LAN | sp | 31 | 6.87 | 3 | 3 | 0 | 8 | 8 | 0 | 0 | 36.2 | 43 | 30 | 28 | 11 | 28 | 5 | 3 |
| Ryan Helsley | Tam | sp | 23 | 8.04 | 3 | 1 | 0 | 23 | 0 | 0 | 0 | 28.0 | 39 | 27 | 25 | 10 | 22 | 5 | 3 |
| Heath Hembree | SD | mr | 29 | 2.99 | 7 | 3 | 4 | 85 | 1 | 0 | 0 | 96.1 | 77 | 33 | 32 | 32 | 96 | 10 | 7 |
| Kyle Hendricks | Was | sp | 28 | 3.03 | 19 | 9 | 0 | 38 | 38 | 0 | 0 | 226.0 | 192 | 90 | 76 | 49 | 184 | 26 | 23 |
| Liam Hendriks | ChN | mr | 29 | 4.96 | 2 | 7 | 1 | 43 | 0 | 0 | 0 | 52.2 | 59 | 32 | 29 | 20 | 64 | 4 | 4 |
| Jimmy Herget | Col | mr | 24 | 3.74 | 5 | 3 | 4 | 86 | 1 | 0 | 0 | 96.1 | 92 | 50 | 40 | 49 | 130 | 11 | 3 |
| Kevin Herget | LAA | mr | 27 | 2.94 | 11 | 5 | 0 | 20 | 20 | 1 | 0 | 131.2 | 92 | 44 | 43 | 45 | 109 | 11 | 14 |
| David Hernandez | Mil | mr | 33 | 6.22 | 5 | 6 | 2 | 47 | 0 | 0 | 0 | 50.2 | 64 | 37 | 35 | 15 | 52 | 10 | 3 |
| Felix Hernandez | Tor | sp | 32 | 5.68 | 5 | 8 | 0 | 21 | 16 | 0 | 0 | 96.2 | 109 | 68 | 61 | 43 | 77 | 20 | 10 |
| Kelvin Herrera | Det | cl | 28 | 2.08 | 2 | 0 | 1 | 24 | 0 | 0 | 0 | 34.2 | 21 | 10 | 8 | 17 | 40 | 2 | 3 |
| Ronald Herrera | Atl | sp | 23 | 4.63 | 13 | 13 | 0 | 33 | 32 | 0 | 0 | 194.1 | 201 | 117 | 100 | 88 | 146 | 24 | 19 |
| Trevor Hildenberger | Min | mr | 27 | 3.96 | 3 | 8 | 21 | 58 | 0 | 0 | 0 | 77.1 | 81 | 34 | 34 | 11 | 91 | 7 | 8 |
| Rich Hill* | Was | sp | 38 | 3.68 | 7 | 9 | 0 | 33 | 33 | 0 | 0 | 161.1 | 127 | 74 | 66 | 79 | 207 | 21 | 12 |
| Yoshihisa Hirano | LAN | mr | 34 | 3.47 | 5 | 5 | 1 | 63 | 0 | 0 | 0 | 72.2 | 59 | 30 | 28 | 27 | 61 | 8 | 7 |
| Jeff Hoffman | Sea | sp | 25 | 2.60 | 8 | 6 | 1 | 24 | 17 | 0 | 0 | 117.2 | 88 | 46 | 34 | 36 | 110 | 10 | 9 |
| Jonathan Holder | LAA | mr | 25 | 2.19 | 2 | 1 | 0 | 41 | 0 | 0 | 0 | 61.2 | 42 | 20 | 15 | 12 | 78 | 5 | 3 |
| Derek Holland* | NYN | sp | 31 | 4.26 | 1 | 1 | 0 | 3 | 2 | 0 | 0 | 12.2 | 11 | 7 | 6 | 8 | 13 | 1 | 0 |
| Greg Holland | | cl | 32 | 2.27 | 3 | 3 | 14 | 45 | 0 | 0 | 0 | 47.2 | 34 | 14 | 12 | 19 | 53 | 1 | 5 |
| J.J. Hoover | Bal | mr | 30 | 5.04 | 3 | 4 | 6 | 37 | 1 | 0 | 0 | 50.0 | 42 | 31 | 28 | 19 | 56 | 10 | 0 |
| Sam Howard* | KC | sp | 25 | 4.50 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 2.0 | 4 | 4 | 1 | 0 | 2 | 2 | 0 |
| James Hoyt | Cin | mr | 31 | 1.87 | 6 | 2 | 4 | 43 | 0 | 0 | 0 | 53.0 | 37 | 12 | 11 | 20 | 65 | 3 | 7 |
| Chih-Wei Hu | Mia | mr | 24 | 4.54 | 10 | 7 | 0 | 27 | 27 | 0 | 0 | 150.2 | 151 | 84 | 76 | 46 | 132 | 19 | 7 |
| Dakota Hudson | KC | sp | 23 | 4.79 | 5 | 3 | 5 | 79 | 0 | 0 | 0 | 103.1 | 123 | 61 | 55 | 43 | 59 | 10 | 13 |
| Jared Hughes | Bos | mr | 32 | 3.69 | 2 | 1 | 3 | 30 | 0 | 0 | 0 | 39.0 | 32 | 19 | 16 | 22 | 20 | 5 | 10 |
| Tommy Hunter | Phi | mr | 31 | 2.32 | 0 | 3 | 4 | 35 | 0 | 0 | 0 | 50.1 | 49 | 14 | 13 | 11 | 44 | 2 | 4 |
| Raisel Iglesias | | cl | 28 | 1.93 | 8 | 2 | 30 | 80 | 0 | 0 | 0 | 88.2 | 57 | 20 | 19 | 30 | 77 | 4 | 12 |
| Gregory Infante | Cin | mr | 30 | 2.25 | 3 | 0 | 0 | 19 | 0 | 0 | 0 | 24.0 | 21 | 8 | 6 | 10 | 21 | 0 | 3 |
| Luke Jackson | KC | mr | 26 | 3.15 | 11 | 12 | 0 | 33 | 32 | 0 | 0 | 197.1 | 158 | 74 | 69 | 80 | 184 | 19 | 12 |
| Kenley Jansen | | cl | 30 | 2.73 | 6 | 4 | 26 | 55 | 0 | 0 | 0 | 62.2 | 50 | 19 | 19 | 15 | 103 | 10 | 5 |
| Jeremy Jeffress | Atl | mr | 30 | 3.64 | 2 | 6 | 7 | 60 | 0 | 0 | 0 | 101.1 | 105 | 47 | 41 | 36 | 79 | 9 | 21 |
| Dan Jennings* | Was | mr | 31 | 3.95 | 3 | 3 | 1 | 56 | 0 | 0 | 0 | 68.1 | 63 | 31 | 30 | 39 | 52 | 2 | 15 |
| Joe Jimenez | KC | mr | 23 | 3.06 | 3 | 7 | 3 | 80 | 0 | 0 | 0 | 85.1 | 79 | 32 | 29 | 24 | 89 | 11 | 6 |
| Brian Johnson* | Mil | sp | 27 | 4.28 | 2 | 3 | 0 | 12 | 12 | 0 | 0 | 61.0 | 54 | 29 | 29 | 30 | 39 | 9 | 5 |
| Connor Jones | Mil | sp | 23 | 11.57 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 4.2 | 7 | 6 | 6 | 2 | 3 | 4 | 0 |
| Nate Jones | Was | mr | 32 | 2.14 | 5 | 0 | 2 | 48 | 0 | 0 | 0 | 59.0 | 40 | 14 | 14 | 19 | 76 | 5 | 6 |
| Jake Junis | LAN | sp | 25 | 4.36 | 8 | 12 | 0 | 30 | 29 | 0 | 0 | 169.1 | 169 | 89 | 82 | 45 | 163 | 24 | 10 |
| Tommy Kahnle | LAA | mr | 28 | 3.25 | 3 | 3 | 22 | 44 | 0 | 0 | 0 | 44.1 | 30 | 16 | 16 | 20 | 66 | 0 | 4 |
| Keone Kela | | mr | 25 | 1.77 | 3 | 2 | 4 | 62 | 0 | 0 | 0 | 86.2 | 43 | 18 | 17 | 21 | 124 | 6 | 7 |
| Brad Keller | | sp | 22 | 5.18 | 3 | 4 | 1 | 24 | 9 | 0 | 0 | 66.0 | 67 | 43 | 38 | 27 | 38 | 10 | 5 |
| Mitch Keller | | sp | 22 | 8.80 | 2 | 4 | 1 | 18 | 7 | 0 | 0 | 46.0 | 70 | 50 | 45 | 14 | 32 | 10 | 2 |
| Joe Kelly | Mil | mr | 30 | 1.88 | 7 | 2 | 4 | 64 | 0 | 0 | 0 | 86.1 | 67 | 21 | 18 | 30 | 91 | 2 | 14 |
| Brett Kennedy | Cin | sp | 23 | 6.35 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 5.2 | 4 | 4 | 4 | 5 | 5 | 1 | 0 |
| Ian Kennedy | Hou | sp | 33 | 3.97 | 8 | 11 | 4 | 39 | 22 | 2 | 0 | 185.2 | 161 | 96 | 82 | 63 | 174 | 35 | 13 |
| Clayton Kershaw* | | sp | 30 | 2.97 | 11 | 6 | 0 | 25 | 24 | 0 | 0 | 157.2 | 115 | 55 | 52 | 29 | 204 | 22 | 8 |
| Dallas Keuchel* | ChN | sp | 30 | 3.25 | 17 | 8 | 0 | 36 | 36 | 0 | 0 | 221.1 | 179 | 93 | 80 | 76 | 182 | 16 | 29 |
| Franklyn Kilome | | sp | 23 | 6.37 | 0 | 1 | 0 | 10 | 8 | 0 | 0 | 41.0 | 38 | 31 | 29 | 26 | 32 | 4 | 5 |
| Craig Kimbrel | Tor | cl | 30 | 3.03 | 3 | 5 | 18 | 59 | 0 | 0 | 0 | 68.1 | 40 | 23 | 23 | 36 | 114 | 11 | 3 |
| Nick Kingham | Hou | sp | 26 | 3.76 | 4 | 13 | 3 | 30 | 17 | 3 | 1 | 143.2 | 145 | 73 | 60 | 25 | 88 | 18 | 12 |
| Brandon Kintzler | Col | cl | 33 | 7.26 | 4 | 5 | 8 | 68 | 0 | 0 | 0 | 75.2 | 120 | 66 | 61 | 20 | 48 | 12 | 10 |
| Andrew Kittredge | Mia | mr | 28 | 2.18 | 7 | 3 | 3 | 40 | 0 | 0 | 0 | 62.0 | 60 | 17 | 15 | 14 | 62 | 4 | 6 |
| Corey Kluber | SF | sp | 32 | 2.58 | 15 | 8 | 0 | 37 | 37 | 0 | 0 | 230.2 | 180 | 78 | 66 | 42 | 286 | 19 | 4 |
| Corey Knebel | | cl | 26 | 3.59 | 4 | 4 | 10 | 50 | 0 | 0 | 0 | 57.2 | 42 | 26 | 23 | 27 | 100 | 6 | 4 |
| Tom Koehler | Hou | sp | 32 | 5.14 | 1 | 0 | 0 | 2 | 1 | 0 | 0 | 7.0 | 4 | 4 | 4 | 3 | 8 | 1 | 0 |
| George Kontos | | mr | 33 | 4.47 | 2 | 7 | 6 | 38 | 0 | 0 | 0 | 58.1 | 53 | 31 | 29 | 14 | 54 | 10 | 5 |
| Chad Kuhl | Col | sp | 25 | 2.75 | 5 | 4 | 0 | 11 | 11 | 0 | 0 | 72.0 | 56 | 23 | 22 | 21 | 68 | 7 | 9 |
| Brady Lail | Hou | sp | 24 | 6.77 | 2 | 15 | 0 | 28 | 19 | 1 | 0 | 145.0 | 188 | 120 | 109 | 37 | 99 | 43 | 13 |
| Eric Lauer* | Hou | sp | 23 | 5.77 | 6 | 8 | 0 | 22 | 17 | 0 | 0 | 115.1 | 138 | 83 | 74 | 40 | 117 | 28 | 3 |
| Derek Law | Mia | mr | 27 | 5.54 | 1 | 2 | 7 | 64 | 0 | 0 | 0 | 76.1 | 87 | 51 | 47 | 32 | 59 | 8 | 12 |
| Mike Leake | Cin | sp | 30 | 2.94 | 13 | 8 | 0 | 34 | 34 | 0 | 0 | 214.0 | 202 | 79 | 70 | 42 | 154 | 16 | 21 |
| Wade LeBlanc* | Was | mr | 33 | 5.79 | 1 | 1 | 0 | 6 | 0 | 0 | 0 | 9.1 | 13 | 7 | 6 | 4 | 7 | 1 | 1 |
| Jose Leclerc | LAA | mr | 24 | 3.21 | 5 | 3 | 8 | 68 | 0 | 0 | 0 | 89.2 | 54 | 32 | 32 | 67 | 77 | 5 | 11 |
| Dominic Leone | | mr | 26 | 3.15 | 1 | 2 | 2 | 33 | 0 | 0 | 0 | 34.1 | 36 | 13 | 12 | 14 | 45 | 3 | 1 |
| Jon Lester* | | sp | 34 | 2.65 | 20 | 7 | 0 | 34 | 34 | 2 | 2 | 207.0 | 150 | 64 | 61 | 53 | 213 | 16 | 19 |
| Artie Lewicki | LAN | sp | 26 | 3.92 | 7 | 4 | 1 | 21 | 20 | 1 | 0 | 114.2 | 115 | 63 | 50 | 32 | 83 | 8 | 8 |
| Adam Liberatore* | Phi | mr | 31 | 4.63 | 6 | 5 | 7 | 72 | 0 | 0 | 0 | 79.2 | 77 | 46 | 41 | 24 | 88 | 8 | 8 |
| Zack Littell | Tam | sp | 22 | 5.40 | 1 | 2 | 1 | 12 | 1 | 0 | 0 | 21.2 | 21 | 15 | 13 | 7 | 14 | 3 | 2 |
| Walker Lockett | ChA | sp | 24 | 7.27 | 0 | 3 | 0 | 11 | 0 | 0 | 0 | 17.1 | 21 | 15 | 14 | 4 | 12 | 7 | 1 |
| Boone Logan* | LAN | mr | 33 | 8.53 | 0 | 1 | 0 | 8 | 0 | 0 | 0 | 6.1 | 7 | 7 | 6 | 7 | 8 | 0 | 2 |
| Jorge Lopez | SD | sp | 25 | 2.45 | 1 | 0 | 1 | 2 | 0 | 0 | 0 | 3.2 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
| Pablo Lopez | Tex | sp | 22 | 5.83 | 0 | 12 | 0 | 29 | 17 | 0 | 0 | 114.1 | 149 | 81 | 74 | 35 | 77 | 20 | 9 |
| Reynaldo Lopez | Bos | sp | 24 | 5.62 | 4 | 2 | 2 | 65 | 1 | 0 | 0 | 91.1 | 111 | 65 | 57 | 40 | 90 | 18 | 8 |
| Yoan Lopez | Tex | mr | 25 | 4.91 | 1 | 1 | 0 | 13 | 0 | 0 | 0 | 14.2 | 20 | 11 | 8 | 7 | 14 | 3 | 3 |
| Michael Lorenzen | | mr | 26 | 4.76 | 1 | 0 | 1 | 25 | 0 | 0 | 0 | 34.0 | 40 | 20 | 18 | 8 | 21 | 3 | 4 |
| Aaron Loup* | Cin | mr | 30 | 3.18 | 3 | 0 | 1 | 39 | 0 | 0 | 0 | 39.2 | 41 | 15 | 14 | 15 | 50 | 3 | 3 |
| Richard Lovelady* | | mr | 22 | 4.78 | 1 | 8 | 0 | 37 | 0 | 0 | 0 | 52.2 | 63 | 50 | 28 | 28 | 45 | 9 | 7 |
| Joey Lucchesi* | Ari | sp | 25 | 5.26 | 7 | 8 | 2 | 45 | 18 | 0 | 0 | 137.0 | 136 | 88 | 80 | 52 | 117 | 29 | 7 |
| Seth Lugo | NYN | sp | 28 | 4.37 | 1 | 2 | 2 | 19 | 0 | 0 | 0 | 22.2 | 23 | 13 | 11 | 10 | 19 | 4 | 3 |
| Jordan Lyles | Phi | mr | 27 | 1.77 | 1 | 0 | 0 | 3 | 3 | 0 | 0 | 20.1 | 13 | 5 | 4 | 5 | 16 | 2 | 4 |
| Lance Lynn | | sp | 31 | 3.34 | 9 | 16 | 0 | 32 | 32 | 1 | 0 | 186.0 | 164 | 76 | 69 | 60 | 166 | 26 | 19 |
| Tyler Lyons* | Cin | mr | 30 | 2.38 | 5 | 1 | 3 | 49 | 0 | 0 | 0 | 56.2 | 40 | 17 | 15 | 19 | 70 | 6 | 6 |
| Ryan Madson | | cl | 37 | 3.95 | 3 | 7 | 6 | 61 | 0 | 0 | 0 | 79.2 | 76 | 41 | 35 | 21 | 81 | 5 | 4 |
| Kenta Maeda | Min | sp | 30 | 3.13 | 10 | 8 | 0 | 28 | 28 | 1 | 0 | 186.2 | 162 | 73 | 65 | 35 | 164 | 19 | 19 |
| Tyler Mahle | Tam | sp | 23 | 4.39 | 9 | 13 | 0 | 33 | 33 | 0 | 0 | 184.2 | 186 | 99 | 90 | 37 | 180 | 34 | 13 |
| Kazuhisa Makita | | mr | 33 | 2.31 | 3 | 3 | 3 | 70 | 0 | 0 | 0 | 85.2 | 81 | 25 | 22 | 15 | 43 | 3 | 12 |
| Sean Manaea* | Mil | sp | 26 | 3.02 | 9 | 5 | 0 | 31 | 31 | 0 | 0 | 178.2 | 148 | 70 | 60 | 52 | 160 | 19 | 13 |
| Michael Mariot | ChN | mr | 29 | 9.95 | 0 | 1 | 1 | 4 | 0 | 0 | 0 | 6.1 | 10 | 7 | 7 | 4 | 7 | 1 | 1 |
| German Marquez | Bos | sp | 23 | 4.88 | 14 | 12 | 0 | 36 | 36 | 1 | 0 | 219.2 | 223 | 128 | 119 | 60 | 177 | 36 | 19 |
| Francis Martes | Tam | mr | 22 | 2.65 | 4 | 2 | 0 | 27 | 0 | 0 | 0 | 37.1 | 28 | 12 | 11 | 14 | 43 | 2 | 1 |
| Cody Martin | SD | sp | 28 | 4.12 | 9 | 8 | 4 | 58 | 9 | 0 | 0 | 118.0 | 128 | 65 | 54 | 33 | 111 | 8 | 8 |
| Kyle Martin | SD | mr | 27 | 5.58 | 3 | 6 | 6 | 54 | 4 | 0 | 0 | 92.0 | 92 | 59 | 57 | 47 | 82 | 20 | 3 |
| Carlos Martinez | Sea | sp | 26 | 4.06 | 5 | 6 | 0 | 18 | 17 | 0 | 0 | 99.2 | 103 | 48 | 45 | 30 | 102 | 11 | 6 |
| Phil Maton | ChN | mr | 25 | 4.19 | 3 | 4 | 1 | 34 | 1 | 0 | 0 | 43.0 | 45 | 21 | 20 | 13 | 41 | 8 | 3 |
| Steven Matz* | | sp | 27 | 3.75 | 9 | 10 | 0 | 31 | 31 | 0 | 0 | 182.1 | 159 | 82 | 76 | 55 | 150 | 21 | 20 |
| Brandon Maurer | Tam | cl | 27 | 0.00 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Trevor May | Sea | mr | 28 | 5.03 | 1 | 1 | 2 | 12 | 0 | 0 | 0 | 19.2 | 18 | 11 | 11 | 5 | 20 | 4 | 2 |
| Mike Mayers | StL | sp | 26 | 5.44 | 2 | 5 | 1 | 23 | 3 | 0 | 0 | 41.1 | 47 | 28 | 25 | 25 | 29 | 6 | 3 |
| Cory Mazzoni | NYN | mr | 28 | 5.33 | 4 | 1 | 5 | 41 | 0 | 0 | 0 | 54.0 | 65 | 33 | 32 | 18 | 49 | 6 | 3 |
| Zach McAllister | Sea | mr | 30 | 2.72 | 3 | 5 | 9 | 77 | 0 | 0 | 0 | 96.0 | 85 | 29 | 29 | 36 | 102 | 6 | 3 |
| Brandon McCarthy | SF | sp | 34 | 4.10 | 1 | 3 | 3 | 34 | 0 | 0 | 0 | 52.2 | 52 | 26 | 24 | 13 | 32 | 10 | 5 |
| Lance McCullers | | sp | 24 | 3.33 | 7 | 6 | 0 | 23 | 23 | 0 | 0 | 140.1 | 117 | 57 | 52 | 41 | 168 | 15 | 7 |
| T.J. McFarland* | Bos | mr | 29 | 2.29 | 2 | 0 | 1 | 12 | 0 | 0 | 0 | 19.2 | 24 | 7 | 5 | 5 | 13 | 4 | 4 |
| Jake McGee* | Tor | mr | 31 | 2.69 | 10 | 4 | 4 | 65 | 0 | 0 | 0 | 87.0 | 82 | 32 | 26 | 23 | 90 | 5 | 12 |
| Kyle McGrath* | | mr | 25 | 2.26 | 3 | 1 | 3 | 41 | 0 | 0 | 0 | 59.2 | 48 | 15 | 15 | 12 | 62 | 5 | 4 |
| Collin McHugh | Cin | sp | 31 | 3.79 | 10 | 13 | 0 | 34 | 34 | 1 | 1 | 197.1 | 189 | 91 | 83 | 59 | 191 | 24 | 16 |
| Ryan Meisinger | Cin | mr | 24 | 6.75 | 2 | 1 | 2 | 13 | 0 | 0 | 0 | 16.0 | 18 | 16 | 12 | 16 | 18 | 2 | 0 |
| Adalberto Mejia* | Min | sp | 25 | 5.01 | 2 | 2 | 0 | 4 | 4 | 0 | 0 | 23.1 | 20 | 15 | 13 | 9 | 16 | 3 | 3 |
| Mark Melancon | Was | cl | 33 | 1.67 | 1 | 2 | 16 | 39 | 0 | 0 | 0 | 43.0 | 37 | 9 | 8 | 7 | 43 | 1 | 4 |
| Keury Mella | Sea | sp | 24 | 5.33 | 3 | 3 | 6 | 60 | 0 | 0 | 0 | 76.0 | 82 | 53 | 45 | 29 | 48 | 14 | 3 |
| Yohander Mendez* | KC | sp | 23 | 3.86 | 1 | 4 | 5 | 69 | 0 | 0 | 0 | 84.0 | 78 | 39 | 36 | 25 | 65 | 18 | 8 |
| Daniel Mengden | Col | sp | 25 | 3.80 | 3 | 2 | 2 | 33 | 7 | 0 | 0 | 66.1 | 63 | 33 | 28 | 24 | 66 | 4 | 7 |
| Keynan Middleton | Bal | mr | 24 | 9.88 | 0 | 3 | 4 | 11 | 0 | 0 | 0 | 13.2 | 20 | 15 | 15 | 7 | 17 | 2 | 0 |
| Miles Mikolas | Bos | sp | 29 | 3.45 | 17 | 6 | 0 | 35 | 35 | 0 | 0 | 211.0 | 182 | 88 | 81 | 57 | 152 | 29 | 25 |
| Wade Miley* | SD | sp | 31 | 5.19 | 0 | 2 | 0 | 3 | 1 | 0 | 0 | 8.2 | 8 | 5 | 5 | 5 | 5 | 1 | 0 |
| Andrew Miller* | Det | mr | 33 | 1.17 | 2 | 0 | 12 | 23 | 0 | 0 | 0 | 30.2 | 20 | 4 | 4 | 5 | 46 | 2 | 2 |
| Jared Miller* | Phi | mr | 24 | 3.55 | 4 | 2 | 6 | 58 | 0 | 0 | 0 | 63.1 | 59 | 26 | 25 | 34 | 81 | 9 | 4 |
| Justin Miller | KC | mr | 31 | 1.20 | 0 | 1 | 1 | 10 | 0 | 0 | 0 | 15.0 | 11 | 3 | 2 | 6 | 14 | 1 | 1 |
| Shelby Miller | Atl | sp | 27 | 3.86 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 7.0 | 4 | 3 | 3 | 2 | 1 | 0 | 0 |
| Alec Mills | | sp | 26 | 3.89 | 6 | 9 | 0 | 26 | 22 | 0 | 0 | 138.2 | 148 | 67 | 60 | 33 | 81 | 10 | 10 |
| Mike Minor* | ChN | mr | 30 | 4.06 | 8 | 17 | 0 | 32 | 32 | 0 | 0 | 186.1 | 157 | 92 | 84 | 64 | 208 | 20 | 15 |
| A.J. Minter* | Was | mr | 24 | 3.55 | 4 | 1 | 10 | 59 | 0 | 0 | 0 | 58.1 | 50 | 23 | 23 | 39 | 91 | 9 | 6 |
| Ariel Miranda* | StL | sp | 29 | 3.31 | 2 | 1 | 0 | 7 | 6 | 0 | 0 | 35.1 | 28 | 16 | 13 | 18 | 29 | 4 | 4 |
| Bryan Mitchell | Pit | mr | 27 | 4.29 | 1 | 4 | 0 | 19 | 5 | 0 | 0 | 42.0 | 48 | 22 | 20 | 11 | 36 | 5 | 4 |
| Marcos Molina | NYA | sp | 23 | 5.12 | 8 | 3 | 0 | 27 | 10 | 0 | 0 | 82.2 | 100 | 50 | 47 | 21 | 71 | 13 | 4 |
| Frankie Montas | ChN | mr | 25 | 4.32 | 9 | 7 | 0 | 28 | 28 | 0 | 0 | 154.1 | 138 | 86 | 74 | 74 | 178 | 19 | 10 |
| Jordan Montgomery* | ChA | sp | 25 | 4.97 | 0 | 5 | 0 | 7 | 7 | 0 | 0 | 38.0 | 32 | 24 | 21 | 10 | 51 | 7 | 0 |
| Mike Montgomery* | Sea | mr | 28 | 2.97 | 18 | 9 | 0 | 36 | 33 | 1 | 0 | 209.0 | 168 | 79 | 69 | 71 | 185 | 16 | 22 |
| Andrew Moore | Mil | sp | 24 | 6.86 | 0 | 3 | 0 | 4 | 4 | 0 | 0 | 21.0 | 30 | 18 | 16 | 2 | 12 | 5 | 1 |
| Matt Moore* | Tam | sp | 29 | 4.50 | 5 | 9 | 0 | 35 | 22 | 0 | 0 | 148.0 | 123 | 80 | 74 | 64 | 142 | 21 | 6 |
| Reyes Moronta | NYA | mr | 25 | 4.86 | 1 | 2 | 4 | 33 | 0 | 0 | 0 | 37.0 | 30 | 22 | 20 | 17 | 58 | 7 | 2 |
| Akeel Morris | StL | mr | 25 | 3.74 | 0 | 1 | 3 | 39 | 0 | 0 | 0 | 55.1 | 41 | 23 | 23 | 34 | 63 | 5 | 3 |
| Brandon Morrow | Atl | mr | 33 | 3.39 | 2 | 5 | 4 | 50 | 0 | 0 | 0 | 85.0 | 81 | 33 | 32 | 23 | 83 | 5 | 13 |
| Charlie Morton | | sp | 34 | 3.92 | 7 | 12 | 0 | 32 | 32 | 0 | 0 | 183.2 | 160 | 88 | 80 | 60 | 174 | 22 | 27 |
| Gabriel Moya* | KC | mr | 23 | 4.57 | 4 | 5 | 4 | 91 | 0 | 0 | 0 | 88.2 | 79 | 45 | 45 | 29 | 108 | 12 | 8 |
| Peter Moylan | NYN | mr | 39 | 4.57 | 4 | 1 | 3 | 18 | 0 | 0 | 0 | 21.2 | 23 | 11 | 11 | 10 | 13 | 1 | 7 |
| Jose Mujica | Atl | sp | 22 | 5.16 | 8 | 13 | 0 | 34 | 33 | 1 | 0 | 204.0 | 225 | 126 | 117 | 68 | 116 | 34 | 22 |
| Joe Musgrove | ChA | sp | 25 | 4.45 | 3 | 8 | 0 | 18 | 18 | 0 | 0 | 113.1 | 102 | 65 | 56 | 17 | 107 | 21 | 6 |
| Nick Neidert | Hou | sp | 21 | 4.49 | 7 | 12 | 2 | 35 | 20 | 0 | 0 | 162.1 | 172 | 92 | 81 | 28 | 101 | 25 | 5 |
| Jimmy Nelson | SD | sp | 29 | 1.80 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 5.0 | 4 | 1 | 1 | 4 | 3 | 0 | 0 |
| Hector Neris | Phi | cl | 29 | 3.73 | 1 | 1 | 1 | 24 | 0 | 0 | 0 | 31.1 | 29 | 13 | 13 | 10 | 42 | 4 | 1 |
| Pat Neshek | Phi | mr | 37 | 1.38 | 1 | 1 | 2 | 19 | 0 | 0 | 0 | 26.0 | 15 | 4 | 4 | 3 | 29 | 1 | 1 |
| Dovydas Neverauskas | Oak | mr | 25 | 4.15 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 4.1 | 6 | 3 | 2 | 3 | 2 | 0 | 1 |
| Sean Newcomb* | Oak | sp | 25 | 3.67 | 6 | 8 | 0 | 28 | 28 | 0 | 0 | 135.0 | 110 | 58 | 55 | 76 | 140 | 9 | 8 |
| Juan Nicasio | NYA | mr | 31 | 2.69 | 7 | 2 | 2 | 30 | 6 | 0 | 0 | 73.2 | 57 | 23 | 22 | 20 | 75 | 10 | 4 |
| Aaron Nola | Phi | sp | 25 | 3.42 | 11 | 9 | 0 | 36 | 36 | 1 | 0 | 213.0 | 204 | 83 | 81 | 36 | 211 | 27 | 18 |
| Bud Norris | NYN | cl | 33 | 4.17 | 7 | 12 | 0 | 35 | 29 | 1 | 1 | 164.0 | 148 | 94 | 76 | 61 | 162 | 28 | 11 |
| Ivan Nova | Mil | sp | 31 | 3.33 | 8 | 6 | 0 | 29 | 29 | 0 | 0 | 175.2 | 151 | 71 | 65 | 36 | 128 | 19 | 17 |
| Darren O'Day | NYA | mr | 35 | 1.98 | 1 | 0 | 3 | 20 | 0 | 0 | 0 | 27.1 | 17 | 6 | 6 | 2 | 30 | 2 | 4 |
| Trevor Oaks | Bal | sp | 25 | 4.57 | 4 | 5 | 0 | 13 | 13 | 0 | 0 | 86.2 | 92 | 46 | 44 | 23 | 48 | 13 | 9 |
| Scott Oberg | ChA | mr | 28 | 3.26 | 7 | 3 | 27 | 57 | 0 | 0 | 0 | 60.2 | 53 | 24 | 22 | 19 | 47 | 8 | 4 |
| Jake Odorizzi | SD | sp | 28 | 3.60 | 8 | 6 | 0 | 24 | 24 | 0 | 0 | 140.0 | 128 | 69 | 56 | 45 | 111 | 14 | 11 |
| Seung-hwan Oh | Pit | cl | 35 | 2.09 | 6 | 2 | 4 | 56 | 0 | 0 | 0 | 60.1 | 46 | 14 | 14 | 13 | 56 | 4 | 5 |
| Shohei Ohtani | Tex | sp | 23 | 6.20 | 0 | 4 | 0 | 5 | 5 | 0 | 0 | 24.2 | 26 | 19 | 17 | 11 | 26 | 4 | 0 |
| Tyler Olson* | Mia | mr | 28 | 3.38 | 2 | 2 | 0 | 26 | 0 | 0 | 0 | 26.2 | 24 | 13 | 10 | 7 | 31 | 2 | 3 |
| Roberto Osuna | Mia | cl | 23 | 0.99 | 4 | 0 | 14 | 34 | 0 | 0 | 0 | 45.1 | 23 | 5 | 5 | 7 | 53 | 2 | 2 |
| Corey Oswalt | | sp | 24 | 4.28 | 4 | 9 | 0 | 19 | 19 | 0 | 0 | 113.2 | 115 | 58 | 54 | 28 | 103 | 14 | 9 |
| Dan Otero | | mr | 33 | 3.47 | 7 | 4 | 8 | 72 | 0 | 0 | 0 | 98.2 | 107 | 43 | 38 | 12 | 62 | 11 | 13 |
| Adam Ottavino | Pit | mr | 32 | 3.60 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 5.0 | 4 | 2 | 2 | 2 | 3 | 1 | 0 |
| Henry Owens* | Atl | sp | 25 | 6.69 | 6 | 19 | 0 | 36 | 36 | 0 | 0 | 188.1 | 173 | 154 | 140 | 154 | 194 | 36 | 24 |
| Emilio Pagan | NYN | mr | 27 | 6.30 | 4 | 7 | 3 | 94 | 0 | 0 | 0 | 120.0 | 138 | 89 | 84 | 49 | 122 | 24 | 6 |
| Blake Parker | LAA | mr | 33 | 2.00 | 3 | 1 | 7 | 38 | 0 | 0 | 0 | 45.0 | 26 | 12 | 10 | 13 | 63 | 1 | 1 |
| David Paulino | | sp | 24 | 2.03 | 1 | 0 | 1 | 12 | 3 | 0 | 0 | 31.0 | 25 | 7 | 7 | 12 | 29 | 2 | 3 |
| James Paxton* | Sea | sp | 29 | 3.09 | 8 | 11 | 0 | 30 | 27 | 0 | 0 | 171.2 | 139 | 72 | 59 | 47 | 197 | 11 | 15 |
| James Pazos* | | mr | 27 | 2.92 | 5 | 5 | 5 | 56 | 0 | 0 | 0 | 83.1 | 74 | 29 | 27 | 35 | 107 | 6 | 12 |
| Brad Peacock | | sp | 30 | 3.62 | 8 | 4 | 0 | 31 | 17 | 0 | 0 | 102.0 | 80 | 44 | 41 | 45 | 113 | 15 | 5 |
| Freddy Peralta | Oak | sp | 22 | 7.68 | 3 | 4 | 1 | 27 | 1 | 0 | 0 | 38.2 | 44 | 35 | 33 | 18 | 50 | 8 | 3 |
| Luis Perdomo | LAA | sp | 25 | 4.32 | 3 | 7 | 0 | 19 | 19 | 1 | 1 | 106.1 | 116 | 53 | 51 | 27 | 75 | 13 | 12 |
| Cionel Perez* | NYN | sp | 22 | 4.81 | 6 | 11 | 0 | 21 | 21 | 0 | 0 | 119.2 | 130 | 78 | 64 | 43 | 79 | 13 | 18 |
| Martin Perez* | LAN | sp | 27 | 2.55 | 6 | 6 | 0 | 18 | 18 | 1 | 1 | 113.0 | 94 | 40 | 32 | 41 | 82 | 9 | 18 |
| Oliver Perez* | Min | mr | 36 | 6.00 | 1 | 0 | 3 | 23 | 0 | 0 | 0 | 24.0 | 26 | 16 | 16 | 11 | 34 | 4 | 2 |
| Dillon Peters* | Cle | sp | 25 | 4.26 | 2 | 6 | 0 | 14 | 14 | 0 | 0 | 76.0 | 78 | 43 | 36 | 26 | 54 | 10 | 11 |
| Yusmeiro Petit | Was | mr | 33 | 3.98 | 1 | 3 | 1 | 45 | 5 | 0 | 0 | 72.1 | 61 | 33 | 32 | 26 | 88 | 11 | 1 |
| Jake Petricka | ChN | mr | 30 | 3.75 | 7 | 2 | 2 | 61 | 0 | 0 | 0 | 84.0 | 94 | 37 | 35 | 24 | 56 | 3 | 9 |
| Nick Pivetta | | sp | 25 | 3.71 | 10 | 10 | 0 | 27 | 27 | 0 | 0 | 155.1 | 138 | 77 | 64 | 50 | 146 | 21 | 10 |
| Adam Plutko | Tex | sp | 26 | 5.11 | 2 | 3 | 1 | 23 | 11 | 0 | 0 | 79.1 | 86 | 50 | 45 | 21 | 70 | 11 | 3 |
| Drew Pomeranz* | SD | sp | 29 | 3.98 | 6 | 3 | 0 | 16 | 16 | 0 | 0 | 86.0 | 79 | 47 | 38 | 27 | 98 | 12 | 9 |
| Daniel Poncedeleon | StL | sp | 26 | 6.75 | 0 | 2 | 0 | 10 | 0 | 0 | 0 | 12.0 | 10 | 10 | 9 | 11 | 14 | 4 | 1 |
| Rick Porcello | Bal | sp | 29 | 4.29 | 10 | 13 | 0 | 32 | 32 | 2 | 0 | 210.0 | 214 | 115 | 100 | 39 | 184 | 41 | 17 |
| Bobby Poyner* | LAN | mr | 25 | 3.72 | 3 | 6 | 11 | 78 | 0 | 0 | 0 | 96.2 | 90 | 46 | 40 | 35 | 109 | 16 | 7 |
| Ryan Pressly | Min | mr | 29 | 3.24 | 3 | 10 | 2 | 73 | 0 | 0 | 0 | 94.1 | 83 | 38 | 34 | 33 | 96 | 10 | 9 |
| David Price* | Tor | sp | 32 | 3.41 | 15 | 8 | 1 | 41 | 40 | 0 | 0 | 229.1 | 208 | 95 | 87 | 47 | 245 | 28 | 11 |
| Jose Quintana* | | sp | 29 | 3.38 | 11 | 9 | 0 | 36 | 36 | 0 | 0 | 202.2 | 168 | 82 | 76 | 53 | 205 | 15 | 14 |
| Tanner Rainey | Atl | mr | 25 | 5.49 | 2 | 6 | 3 | 56 | 0 | 0 | 0 | 82.0 | 68 | 54 | 50 | 62 | 88 | 13 | 7 |
| Erasmo Ramirez | ChA | mr | 28 | 2.17 | 4 | 1 | 0 | 16 | 6 | 0 | 0 | 49.2 | 40 | 12 | 12 | 9 | 43 | 5 | 3 |
| A.J. Ramos | Min | cl | 31 | 2.31 | 1 | 0 | 1 | 16 | 0 | 0 | 0 | 23.1 | 11 | 6 | 6 | 8 | 33 | 2 | 2 |
| Edubray Ramos | Tor | mr | 25 | 5.26 | 6 | 1 | 3 | 57 | 0 | 0 | 0 | 77.0 | 84 | 50 | 45 | 27 | 91 | 15 | 6 |
| Robbie Ray* | Oak | sp | 26 | 3.83 | 9 | 7 | 0 | 23 | 23 | 0 | 0 | 127.0 | 98 | 56 | 54 | 40 | 189 | 18 | 10 |
| Addison Reed | Cin | cl | 29 | 2.97 | 1 | 1 | 3 | 47 | 0 | 0 | 0 | 60.2 | 61 | 21 | 20 | 6 | 58 | 4 | 6 |
| Cody Reed* | Col | sp | 25 | 4.84 | 4 | 12 | 3 | 75 | 7 | 0 | 0 | 109.2 | 97 | 68 | 59 | 68 | 79 | 11 | 20 |
| Clayton Richard* | LAA | sp | 34 | 3.47 | 7 | 5 | 0 | 21 | 20 | 0 | 0 | 124.2 | 107 | 49 | 48 | 29 | 93 | 13 | 10 |
| Garrett Richards | Bal | sp | 30 | 4.22 | 4 | 8 | 0 | 15 | 15 | 0 | 0 | 89.2 | 85 | 46 | 42 | 38 | 86 | 11 | 13 |
| Trevor Richards | | sp | 25 | 4.95 | 8 | 12 | 0 | 30 | 28 | 0 | 0 | 169.0 | 172 | 110 | 93 | 67 | 148 | 33 | 10 |
| Felipe Rivero* | | cl | 26 | 2.74 | 4 | 4 | 6 | 60 | 0 | 0 | 0 | 72.1 | 51 | 23 | 22 | 22 | 93 | 3 | 4 |
| Tanner Roark | Min | sp | 31 | 5.44 | 11 | 9 | 0 | 33 | 29 | 0 | 0 | 180.1 | 194 | 113 | 109 | 56 | 141 | 30 | 12 |
| David Robertson | Mil | cl | 33 | 3.48 | 9 | 9 | 27 | 68 | 0 | 0 | 0 | 75.0 | 69 | 35 | 29 | 24 | 119 | 10 | 3 |
| Carlos Rodon* | Col | sp | 25 | 4.64 | 6 | 6 | 0 | 20 | 20 | 0 | 0 | 104.2 | 108 | 61 | 54 | 59 | 113 | 10 | 18 |
| Dereck Rodriguez | NYA | sp | 26 | 4.26 | 0 | 1 | 0 | 6 | 0 | 0 | 0 | 6.1 | 8 | 3 | 3 | 2 | 2 | 1 | 1 |
| Eduardo Rodriguez* | Col | sp | 25 | 3.84 | 6 | 5 | 0 | 19 | 18 | 0 | 0 | 98.1 | 95 | 49 | 42 | 43 | 110 | 7 | 7 |
| Richard Rodriguez | Mia | mr | 28 | 9.00 | 2 | 0 | 2 | 10 | 0 | 0 | 0 | 16.0 | 17 | 17 | 16 | 5 | 9 | 7 | 2 |
| Chaz Roe | | mr | 31 | 3.35 | 1 | 0 | 3 | 31 | 0 | 0 | 0 | 43.0 | 42 | 18 | 16 | 13 | 54 | 4 | 5 |
| Josh Rogers* | | sp | 23 | 4.08 | 2 | 13 | 0 | 20 | 20 | 0 | 0 | 119.0 | 110 | 64 | 54 | 22 | 84 | 24 | 13 |
| Taylor Rogers* | Cle | mr | 27 | 3.92 | 4 | 3 | 7 | 60 | 0 | 0 | 0 | 85.0 | 81 | 38 | 37 | 30 | 70 | 7 | 13 |
| Sal Romano | Col | sp | 24 | 5.20 | 4 | 10 | 4 | 41 | 14 | 0 | 0 | 116.0 | 133 | 76 | 67 | 41 | 107 | 16 | 8 |
| Fernando Romero | NYN | sp | 23 | 5.87 | 0 | 1 | 0 | 3 | 3 | 0 | 0 | 15.1 | 17 | 12 | 10 | 7 | 12 | 2 | 2 |
| Sergio Romo | Bal | mr | 35 | 4.50 | 2 | 1 | 6 | 63 | 0 | 0 | 0 | 78.0 | 74 | 45 | 39 | 18 | 75 | 19 | 4 |
| Hector Rondon | | mr | 30 | 2.82 | 8 | 3 | 4 | 67 | 0 | 0 | 0 | 70.1 | 57 | 25 | 22 | 22 | 82 | 6 | 6 |
| Trevor Rosenthal | SD | cl | 28 | 0.00 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 2.1 | 1 | 0 | 0 | 1 | 3 | 0 | 0 |
| Joe Ross | Mia | sp | 25 | 2.76 | 1 | 2 | 0 | 5 | 5 | 0 | 0 | 29.1 | 28 | 12 | 9 | 6 | 23 | 3 | 4 |
| Robbie Ross Jr.* | SD | mr | 29 | 3.86 | 3 | 3 | 0 | 45 | 0 | 0 | 0 | 65.1 | 53 | 28 | 28 | 24 | 61 | 8 | 11 |
| Ben Rowen | ChN | mr | 29 | 3.34 | 1 | 1 | 3 | 22 | 0 | 0 | 0 | 35.0 | 30 | 13 | 13 | 10 | 25 | 3 | 9 |
| Nick Rumbelow | | mr | 26 | 3.93 | 2 | 6 | 4 | 68 | 0 | 0 | 0 | 105.1 | 98 | 47 | 46 | 39 | 119 | 14 | 3 |
| Chris Rusin* | KC | mr | 31 | 3.61 | 3 | 3 | 5 | 65 | 0 | 0 | 0 | 87.1 | 66 | 38 | 35 | 21 | 74 | 14 | 15 |
| Hyun-jin Ryu* | LAN | sp | 31 | 2.89 | 4 | 4 | 0 | 13 | 13 | 0 | 0 | 81.0 | 73 | 32 | 26 | 20 | 61 | 5 | 3 |
| Marc Rzepczynski* | Pit | mr | 32 | 4.40 | 3 | 1 | 0 | 36 | 0 | 0 | 0 | 28.2 | 22 | 15 | 14 | 20 | 29 | 1 | 9 |
| CC Sabathia* | Phi | sp | 37 | 4.36 | 1 | 4 | 0 | 6 | 6 | 0 | 0 | 33.0 | 26 | 20 | 16 | 20 | 35 | 6 | 3 |
| Chris Sale* | Det | sp | 29 | 1.55 | 18 | 2 | 0 | 27 | 27 | 5 | 2 | 197.2 | 105 | 35 | 34 | 28 | 227 | 10 | 8 |
| Jeff Samardzija | Det | sp | 33 | 4.71 | 3 | 4 | 0 | 10 | 10 | 0 | 0 | 57.1 | 70 | 35 | 30 | 12 | 60 | 9 | 4 |
| Aaron Sanchez | | sp | 25 | 4.44 | 5 | 8 | 0 | 22 | 22 | 0 | 0 | 123.2 | 118 | 66 | 61 | 60 | 95 | 5 | 12 |
| Dennis Santana | Ari | sp | 22 | 4.18 | 1 | 1 | 0 | 28 | 3 | 0 | 0 | 47.1 | 37 | 23 | 22 | 20 | 46 | 6 | 6 |
| Edgar Santana | ChA | mr | 26 | 4.70 | 2 | 1 | 1 | 27 | 0 | 0 | 0 | 38.1 | 39 | 23 | 20 | 17 | 30 | 7 | 4 |
| Ervin Santana | Min | sp | 35 | 3.32 | 0 | 2 | 0 | 3 | 3 | 0 | 0 | 19.0 | 22 | 7 | 7 | 4 | 16 | 1 | 1 |
| Max Scherzer | Phi | sp | 33 | 2.58 | 15 | 7 | 0 | 35 | 35 | 1 | 0 | 216.0 | 158 | 69 | 62 | 59 | 282 | 24 | 16 |
| Tanner Scott* | NYN | sp | 23 | 2.25 | 0 | 0 | 1 | 6 | 0 | 0 | 0 | 4.0 | 3 | 4 | 1 | 2 | 5 | 1 | 0 |
| Antonio Senzatela | NYA | sp | 23 | 2.54 | 14 | 5 | 0 | 31 | 31 | 2 | 1 | 198.2 | 151 | 64 | 56 | 41 | 152 | 17 | 14 |
| Luis Severino | Tex | sp | 24 | 3.55 | 8 | 13 | 0 | 33 | 33 | 2 | 1 | 212.2 | 190 | 88 | 84 | 48 | 249 | 17 | 15 |
| Paul Sewald | | mr | 28 | 3.43 | 9 | 2 | 5 | 50 | 0 | 0 | 0 | 60.1 | 59 | 23 | 23 | 15 | 70 | 6 | 4 |
| Bryan Shaw | Was | mr | 30 | 2.10 | 7 | 3 | 4 | 60 | 0 | 0 | 0 | 73.0 | 61 | 25 | 17 | 18 | 72 | 3 | 10 |
| Justus Sheffield* | Ari | sp | 22 | 4.65 | 5 | 14 | 0 | 33 | 32 | 0 | 0 | 168.1 | 154 | 94 | 87 | 84 | 159 | 26 | 15 |
| Chandler Shepherd | Atl | mr | 25 | 4.14 | 3 | 6 | 4 | 60 | 0 | 0 | 0 | 104.1 | 95 | 55 | 48 | 40 | 101 | 23 | 7 |
| Jimmie Sherfy | Col | mr | 26 | 6.62 | 8 | 10 | 2 | 80 | 0 | 0 | 0 | 85.2 | 92 | 72 | 63 | 43 | 111 | 20 | 5 |
| Chasen Shreve* | Tam | mr | 27 | 3.36 | 2 | 5 | 3 | 66 | 0 | 0 | 0 | 72.1 | 55 | 31 | 27 | 30 | 99 | 12 | 6 |
| Lucas Sims | Hou | sp | 24 | 4.05 | 4 | 8 | 0 | 19 | 17 | 2 | 1 | 117.2 | 98 | 61 | 53 | 51 | 142 | 14 | 11 |
| Tyler Skaggs* | StL | sp | 26 | 3.13 | 6 | 8 | 0 | 22 | 22 | 0 | 0 | 129.1 | 99 | 49 | 45 | 38 | 90 | 10 | 10 |
| Carson Smith | Sea | mr | 28 | 2.92 | 1 | 3 | 1 | 18 | 0 | 0 | 0 | 24.2 | 24 | 13 | 8 | 8 | 25 | 2 | 1 |
| Joe Smith | Mil | mr | 34 | 4.04 | 6 | 5 | 3 | 61 | 0 | 0 | 0 | 71.1 | 82 | 38 | 32 | 16 | 55 | 11 | 9 |
| Will Smith* | | mr | 28 | 2.66 | 4 | 4 | 1 | 37 | 0 | 0 | 0 | 44.0 | 37 | 16 | 13 | 14 | 54 | 3 | 6 |
| Josh Smoker* | LAA | mr | 29 | 2.05 | 6 | 1 | 2 | 25 | 0 | 0 | 0 | 26.1 | 21 | 8 | 6 | 5 | 33 | 2 | 3 |
| Blake Snell* | Tor | sp | 25 | 3.41 | 9 | 6 | 0 | 35 | 35 | 0 | 0 | 174.0 | 141 | 75 | 66 | 72 | 204 | 17 | 18 |
| D.J. Snelten* | | mr | 26 | 2.98 | 2 | 1 | 2 | 33 | 0 | 0 | 0 | 48.1 | 33 | 17 | 16 | 13 | 40 | 6 | 5 |
| Sammy Solis* | Bal | mr | 29 | 6.36 | 6 | 5 | 8 | 58 | 0 | 0 | 0 | 69.1 | 68 | 56 | 49 | 38 | 67 | 17 | 9 |
| Joakim Soria | Pit | mr | 34 | 3.18 | 10 | 4 | 4 | 59 | 0 | 0 | 0 | 62.1 | 59 | 23 | 22 | 11 | 74 | 7 | 6 |
| Mike Soroka | Ari | sp | 20 | 5.64 | 1 | 6 | 0 | 10 | 10 | 0 | 0 | 52.2 | 55 | 40 | 33 | 20 | 45 | 8 | 3 |
| Craig Stammen | Mil | mr | 34 | 4.91 | 4 | 0 | 4 | 47 | 0 | 0 | 0 | 66.0 | 63 | 44 | 36 | 25 | 65 | 10 | 7 |
| Ryne Stanek | Oak | mr | 26 | 5.33 | 3 | 1 | 0 | 22 | 0 | 0 | 0 | 27.0 | 27 | 16 | 16 | 18 | 21 | 5 | 3 |
| Josh Staumont | | sp | 24 | 7.19 | 2 | 6 | 0 | 18 | 13 | 0 | 0 | 71.1 | 72 | 65 | 57 | 62 | 78 | 6 | 6 |
| Drew Steckenrider | NYA | mr | 27 | 4.19 | 4 | 1 | 2 | 60 | 0 | 0 | 0 | 86.0 | 76 | 44 | 40 | 35 | 110 | 11 | 11 |
| Jackson Stephens | Tam | sp | 24 | 2.52 | 1 | 2 | 0 | 13 | 3 | 0 | 0 | 35.2 | 30 | 13 | 10 | 6 | 33 | 5 | 2 |
| Jordan Stephens | ChA | sp | 25 | 6.75 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 2.2 | 3 | 5 | 2 | 5 | 3 | 0 | 0 |
| Dan Straily | Mil | sp | 29 | 4.99 | 1 | 6 | 0 | 15 | 15 | 0 | 0 | 83.0 | 78 | 52 | 46 | 32 | 73 | 18 | 3 |
| Stephen Strasburg | NYA | sp | 29 | 2.53 | 12 | 4 | 0 | 24 | 24 | 0 | 0 | 145.2 | 119 | 52 | 41 | 22 | 179 | 19 | 4 |
| Chris Stratton | Tor | sp | 27 | 4.79 | 1 | 9 | 2 | 47 | 7 | 0 | 0 | 97.2 | 101 | 56 | 52 | 40 | 83 | 9 | 12 |
| Hunter Strickland | Ari | mr | 29 | 3.66 | 2 | 1 | 1 | 53 | 1 | 0 | 0 | 64.0 | 55 | 27 | 26 | 25 | 60 | 10 | 6 |
| Ross Stripling | Mia | mr | 28 | 3.25 | 12 | 5 | 0 | 23 | 23 | 0 | 0 | 138.2 | 114 | 56 | 50 | 35 | 124 | 17 | 14 |
| Marcus Stroman | SD | sp | 27 | 3.40 | 12 | 8 | 0 | 30 | 30 | 1 | 1 | 177.1 | 162 | 69 | 67 | 49 | 142 | 9 | 25 |
| Pedro Strop | Tor | mr | 33 | 4.26 | 6 | 4 | 1 | 58 | 0 | 0 | 0 | 74.0 | 67 | 40 | 35 | 26 | 93 | 14 | 8 |
| Andrew Suarez* | SF | sp | 25 | 9.39 | 0 | 0 | 0 | 6 | 0 | 0 | 0 | 7.2 | 7 | 8 | 8 | 7 | 7 | 1 | 1 |
| Ranger Suarez* | Cle | sp | 22 | 5.27 | 1 | 5 | 0 | 12 | 11 | 1 | 0 | 54.2 | 52 | 36 | 32 | 26 | 45 | 7 | 7 |
| Wander Suero | | mr | 26 | 5.35 | 3 | 2 | 4 | 49 | 0 | 0 | 0 | 74.0 | 80 | 47 | 44 | 24 | 60 | 16 | 2 |
| Brent Suter* | LAN | sp | 28 | 4.23 | 2 | 6 | 0 | 24 | 10 | 0 | 0 | 66.0 | 79 | 32 | 31 | 20 | 61 | 8 | 9 |
| Anthony Swarzak | | mr | 32 | 3.93 | 4 | 2 | 0 | 33 | 0 | 0 | 0 | 36.2 | 39 | 17 | 16 | 11 | 50 | 3 | 1 |
| Noah Syndergaard | Det | sp | 25 | 2.67 | 14 | 5 | 0 | 25 | 25 | 1 | 1 | 165.0 | 132 | 52 | 49 | 25 | 186 | 15 | 15 |
| Jameson Taillon | Col | sp | 26 | 4.46 | 6 | 11 | 0 | 33 | 33 | 0 | 0 | 185.2 | 195 | 100 | 92 | 50 | 170 | 17 | 11 |
| Masahiro Tanaka | LAN | sp | 29 | 2.77 | 12 | 4 | 0 | 27 | 27 | 1 | 0 | 169.0 | 132 | 58 | 52 | 31 | 166 | 19 | 11 |
| Dillon Tate | Ari | sp | 24 | 9.00 | 0 | 6 | 1 | 19 | 5 | 0 | 0 | 41.0 | 62 | 40 | 41 | 22 | 25 | 10 | 5 |
| Julio Teheran | SD | sp | 27 | 4.21 | 12 | 9 | 0 | 36 | 36 | 0 | 0 | 196.2 | 192 | 97 | 92 | 46 | 167 | 31 | 5 |
| Ryan Tepera | Mil | mr | 30 | 4.67 | 4 | 2 | 3 | 29 | 0 | 0 | 0 | 34.2 | 34 | 20 | 18 | 9 | 31 | 5 | 4 |
| Jake Thompson | NYN | sp | 24 | 3.45 | 2 | 2 | 5 | 36 | 0 | 0 | 0 | 44.1 | 41 | 18 | 17 | 16 | 37 | 6 | 8 |
| Tyler Thornburg | Bal | mr | 29 | 2.27 | 2 | 1 | 3 | 30 | 0 | 0 | 0 | 39.2 | 20 | 10 | 10 | 15 | 47 | 4 | 1 |
| Trent Thornton | Pit | sp | 24 | 10.50 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 6.0 | 9 | 7 | 7 | 0 | 4 | 2 | 1 |
| Lewis Thorpe* | KC | sp | 22 | 5.93 | 5 | 8 | 0 | 23 | 21 | 0 | 0 | 98.2 | 105 | 73 | 65 | 54 | 87 | 23 | 8 |
| Josh Tomlin | Hou | sp | 33 | 3.15 | 6 | 9 | 1 | 21 | 19 | 5 | 1 | 154.1 | 130 | 57 | 54 | 17 | 115 | 16 | 16 |
| Touki Toussaint | Tex | sp | 22 | 7.49 | 2 | 9 | 0 | 66 | 10 | 0 | 0 | 113.0 | 133 | 111 | 94 | 73 | 99 | 22 | 7 |
| Blake Treinen | | cl | 30 | 1.48 | 5 | 2 | 27 | 62 | 1 | 0 | 0 | 79.0 | 56 | 20 | 13 | 32 | 79 | 4 | 14 |
| Andrew Triggs | Was | sp | 29 | 4.30 | 2 | 1 | 0 | 4 | 4 | 0 | 0 | 23.0 | 26 | 11 | 11 | 5 | 13 | 2 | 3 |
| Lou Trivino | | mr | 26 | 3.96 | 7 | 3 | 3 | 50 | 0 | 0 | 0 | 86.1 | 77 | 45 | 38 | 48 | 73 | 5 | 8 |
| Nick Tropeano | Min | sp | 27 | 4.24 | 9 | 3 | 0 | 16 | 16 | 0 | 0 | 104.0 | 88 | 52 | 49 | 22 | 86 | 10 | 11 |
| Sam Tuivailala | StL | mr | 25 | 1.65 | 5 | 0 | 5 | 33 | 0 | 0 | 0 | 43.2 | 34 | 9 | 8 | 9 | 49 | 2 | 4 |
| Spencer Turnbull | SD | sp | 25 | 9.00 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 2.0 | 3 | 2 | 2 | 0 | 1 | 1 | 0 |
| Duane Underwood | Tex | sp | 23 | 6.97 | 2 | 2 | 1 | 31 | 0 | 0 | 0 | 31.0 | 46 | 28 | 24 | 17 | 19 | 3 | 4 |
| Jose Urena | Tam | sp | 26 | 3.73 | 9 | 9 | 0 | 27 | 27 | 0 | 0 | 152.0 | 143 | 74 | 63 | 45 | 104 | 27 | 19 |
| Julio Urias* | Oak | sp | 21 | 4.38 | 1 | 2 | 0 | 5 | 5 | 0 | 0 | 24.2 | 20 | 14 | 12 | 14 | 21 | 4 | 4 |
| Framber Valdez* | Tex | sp | 24 | 5.29 | 1 | 6 | 1 | 14 | 9 | 0 | 0 | 51.0 | 63 | 32 | 30 | 33 | 40 | 5 | 4 |
| Jason Vargas* | Mil | sp | 35 | 5.40 | 6 | 9 | 0 | 24 | 24 | 1 | 0 | 136.2 | 146 | 92 | 82 | 43 | 109 | 25 | 15 |
| Vince Velasquez | StL | sp | 26 | 4.30 | 10 | 10 | 0 | 28 | 28 | 0 | 0 | 157.0 | 152 | 86 | 75 | 59 | 174 | 30 | 13 |
| Hector Velazquez | SD | sp | 29 | 9.00 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 3.0 | 4 | 3 | 3 | 0 | 1 | 1 | 0 |
| Justin Verlander | Pit | sp | 35 | 2.69 | 14 | 3 | 0 | 35 | 35 | 1 | 0 | 224.0 | 162 | 71 | 67 | 74 | 246 | 17 | 11 |
| Nick Vincent | StL | mr | 31 | 3.86 | 2 | 2 | 15 | 40 | 0 | 0 | 0 | 42.0 | 49 | 20 | 18 | 11 | 39 | 5 | 5 |
| Arodys Vizcaino | Cin | cl | 27 | 5.50 | 3 | 2 | 1 | 26 | 0 | 0 | 0 | 34.1 | 31 | 23 | 21 | 8 | 35 | 7 | 4 |
| Michael Wacha | Bos | sp | 26 | 2.99 | 7 | 4 | 0 | 16 | 16 | 0 | 0 | 108.1 | 90 | 38 | 36 | 21 | 106 | 16 | 7 |
| Bobby Wahl | Sea | mr | 26 | 18.56 | 0 | 3 | 0 | 4 | 0 | 0 | 0 | 5.1 | 9 | 12 | 11 | 12 | 8 | 1 | 0 |
| Adam Wainwright | Min | sp | 36 | 5.44 | 1 | 5 | 0 | 8 | 8 | 0 | 0 | 48.0 | 57 | 31 | 29 | 15 | 26 | 5 | 4 |
| Adam Warren | Sea | mr | 30 | 3.07 | 7 | 8 | 3 | 73 | 1 | 0 | 0 | 88.0 | 83 | 36 | 30 | 33 | 84 | 7 | 7 |
| Tony Watson* | Tor | mr | 33 | 3.74 | 7 | 5 | 5 | 68 | 0 | 0 | 0 | 79.1 | 69 | 36 | 33 | 30 | 64 | 11 | 12 |
| Luke Weaver | Cle | sp | 24 | 4.38 | 5 | 12 | 0 | 21 | 21 | 1 | 1 | 127.1 | 137 | 78 | 62 | 31 | 103 | 21 | 10 |
| Patrick Weigel | Tex | sp | 23 | 0.00 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 |
| Zack Wheeler | Mia | sp | 28 | 4.26 | 3 | 9 | 0 | 19 | 19 | 0 | 0 | 105.2 | 110 | 58 | 50 | 44 | 95 | 12 | 9 |
| Forrest Whitley | Atl | sp | 20 | 5.00 | 11 | 8 | 1 | 31 | 26 | 0 | 0 | 144.0 | 128 | 92 | 80 | 95 | 195 | 22 | 7 |
| Brad Wieck* | StL | mr | 26 | 4.86 | 0 | 3 | 1 | 71 | 0 | 0 | 0 | 70.1 | 60 | 38 | 38 | 58 | 95 | 12 | 7 |
| Taylor Williams | | sp | 26 | 4.10 | 2 | 1 | 3 | 47 | 0 | 0 | 0 | 41.2 | 31 | 20 | 19 | 19 | 42 | 8 | 3 |
| Trevor Williams | | sp | 26 | 3.80 | 7 | 4 | 1 | 25 | 14 | 0 | 0 | 97.0 | 88 | 51 | 41 | 28 | 89 | 12 | 9 |
| Justin Wilson* | Det | mr | 30 | 4.38 | 0 | 1 | 5 | 37 | 0 | 0 | 0 | 49.1 | 43 | 24 | 24 | 24 | 67 | 4 | 6 |
| Dan Winkler | LAN | mr | 28 | 4.22 | 2 | 2 | 2 | 47 | 0 | 0 | 0 | 53.1 | 55 | 26 | 25 | 25 | 62 | 7 | 3 |
| Matt Wisler | | sp | 25 | 5.67 | 3 | 5 | 0 | 18 | 11 | 0 | 0 | 73.0 | 96 | 50 | 46 | 15 | 44 | 12 | 7 |
| Nick Wittgren | StL | mr | 27 | 3.80 | 5 | 2 | 5 | 76 | 0 | 0 | 0 | 87.2 | 88 | 38 | 37 | 14 | 81 | 11 | 7 |
| Alex Wood* | Was | sp | 27 | 3.65 | 15 | 8 | 0 | 39 | 39 | 0 | 0 | 202.0 | 182 | 90 | 82 | 63 | 206 | 19 | 14 |
| Brandon Woodruff | ChA | sp | 25 | 4.57 | 2 | 7 | 0 | 23 | 14 | 0 | 0 | 88.2 | 89 | 46 | 45 | 24 | 81 | 12 | 7 |
| Ryan Yarbrough* | SD | sp | 26 | 3.18 | 4 | 4 | 1 | 19 | 5 | 0 | 0 | 51.0 | 48 | 19 | 18 | 4 | 45 | 7 | 3 |
| Kirby Yates | Bos | mr | 31 | 4.97 | 7 | 3 | 2 | 57 | 0 | 0 | 0 | 63.1 | 62 | 40 | 35 | 32 | 99 | 15 | 6 |
| Rob Zastryzny* | LAN | sp | 26 | 7.41 | 0 | 2 | 0 | 22 | 5 | 0 | 0 | 37.2 | 41 | 32 | 31 | 22 | 35 | 6 | 0 |
| Brad Ziegler | Pit | cl | 38 | 2.76 | 4 | 1 | 9 | 51 | 0 | 0 | 0 | 58.2 | 61 | 23 | 18 | 18 | 37 | 1 | 10 |
| Jordan Zimmermann | Pit | sp | 32 | 3.75 | 3 | 4 | 0 | 8 | 8 | 1 | 0 | 50.1 | 40 | 25 | 21 | 12 | 37 | 6 | 2 |
| 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 |
| Albert Abreu | NYA | sp | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.0 | 9.0 | 18.0 | 9.0 | 0.0 | 1.0 | 2.00 |
| Domingo Acevedo | Cle | sp | 24 | 17 | 6 | 0 | 6 | 0 | 0 | 0 | 2 | 8.6 | 2.7 | 12.1 | 7.7 | 1.4 | 2.8 | 1.26 |
| Chance Adams | KC | sp | 23 | 4 | 2 | 0 | 2 | 2 | 0 | 0 | 3 | 9.4 | 5.4 | 15.1 | 7.3 | 1.0 | 1.4 | 1.64 |
| Matt Albers | Mil | mr | 35 | 16 | 4 | 0 | 2 | 1 | 0 | 1 | 4 | 9.2 | 2.5 | 11.9 | 8.7 | 1.9 | 3.5 | 1.30 |
| Sandy Alcantara | Bos | sp | 22 | 3 | 1 | 1 | 4 | 16 | 2 | 0 | 2 | 12.8 | 6.5 | 19.9 | 6.3 | 2.4 | 1.0 | 2.15 |
| Scott Alexander* | LAA | mr | 28 | 1 | 2 | 0 | 3 | 12 | 1 | 1 | 0 | 7.1 | 3.2 | 10.8 | 7.1 | 0.5 | 2.2 | 1.15 |
| Kolby Allard* | Min | sp | 20 | 1 | 1 | 0 | 2 | 1 | 0 | 1 | 0 | 9.9 | 3.0 | 13.7 | 9.1 | 0.8 | 3.0 | 1.44 |
| Cody Allen | Bal | cl | 29 | 4 | 1 | 0 | 5 | 8 | 0 | 0 | 3 | 6.6 | 2.8 | 9.9 | 10.8 | 0.4 | 3.9 | 1.04 |
| Yency Almonte | Tam | sp | 24 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 16.2 | 8.1 | 24.3 | 2.7 | 2.7 | 0.3 | 2.70 |
| Dan Altavilla | LAN | mr | 25 | 1 | 0 | 1 | 2 | 1 | 0 | 0 | 0 | 6.8 | 5.6 | 13.5 | 9.0 | 1.1 | 1.6 | 1.38 |
| Jose Alvarado* | Ari | mr | 23 | 5 | 0 | 1 | 2 | 15 | 0 | 0 | 4 | 9.4 | 7.9 | 17.5 | 10.8 | 0.8 | 1.4 | 1.92 |
| Dario Alvarez* | Phi | mr | 29 | 7 | 1 | 4 | 1 | 5 | 0 | 0 | 2 | 6.8 | 5.9 | 12.9 | 14.1 | 1.2 | 2.4 | 1.42 |
| Jose Alvarez* | | mr | 29 | 3 | 3 | 1 | 5 | 2 | 0 | 2 | 3 | 7.3 | 1.8 | 9.7 | 9.2 | 0.5 | 5.0 | 1.01 |
| Yadier Alvarez | Tex | sp | 22 | 4 | 0 | 0 | 2 | 1 | 0 | 0 | 0 | 7.1 | 5.2 | 12.8 | 9.3 | 1.2 | 1.8 | 1.36 |
| Chase Anderson | NYN | sp | 30 | 15 | 13 | 1 | 6 | 2 | 2 | 5 | 5 | 9.8 | 2.8 | 12.9 | 7.5 | 1.5 | 2.7 | 1.40 |
| Tyler Anderson* | Bos | sp | 28 | 23 | 9 | 2 | 8 | 7 | 0 | 0 | 3 | 8.2 | 2.8 | 11.3 | 7.3 | 1.8 | 2.7 | 1.22 |
| Matt Andriese | ChN | sp | 28 | 12 | 9 | 2 | 6 | 8 | 0 | 4 | 5 | 9.4 | 1.6 | 11.4 | 7.7 | 1.1 | 4.7 | 1.23 |
| Victor Arano | Tex | mr | 23 | 23 | 3 | 3 | 1 | 13 | 0 | 0 | 2 | 9.1 | 2.9 | 12.1 | 9.0 | 1.8 | 3.1 | 1.33 |
| Chris Archer | SD | sp | 29 | 7 | 8 | 2 | 3 | 14 | 0 | 6 | 2 | 8.0 | 3.0 | 11.1 | 11.4 | 1.0 | 3.8 | 1.22 |
| Rogelio Armenteros | Sea | sp | 24 | 21 | 14 | 1 | 7 | 8 | 0 | 0 | 5 | 7.7 | 3.7 | 11.8 | 8.2 | 1.0 | 2.2 | 1.27 |
| Shawn Armstrong | | mr | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13.5 | 4.5 | 18.0 | 6.8 | 2.3 | 1.5 | 2.00 |
| Jake Arrieta | | sp | 32 | 36 | 15 | 2 | 13 | 17 | 0 | 0 | 5 | 8.9 | 3.4 | 12.9 | 9.1 | 1.8 | 2.7 | 1.37 |
| Luis Avilan* | | mr | 28 | 2 | 3 | 1 | 0 | 1 | 0 | 0 | 0 | 8.3 | 4.3 | 12.6 | 10.2 | 1.0 | 2.4 | 1.40 |
| Pedro Baez | Was | mr | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10.8 | 5.4 | 16.2 | 9.0 | 0.9 | 1.7 | 1.80 |
| Luke Bard | Atl | mr | 27 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 13.5 | 10.8 | 24.3 | 10.8 | 2.7 | 1.0 | 2.70 |
| Danny Barnes | SF | mr | 28 | 2 | 2 | 1 | 1 | 0 | 0 | 0 | 1 | 8.1 | 1.9 | 10.2 | 11.6 | 1.2 | 6.3 | 1.11 |
| Jacob Barnes | Tor | mr | 28 | 13 | 4 | 0 | 3 | 9 | 0 | 1 | 2 | 7.4 | 4.2 | 11.9 | 9.2 | 0.9 | 2.2 | 1.30 |
| Matt Barnes | | mr | 28 | 8 | 4 | 1 | 1 | 3 | 0 | 1 | 0 | 7.6 | 4.5 | 12.3 | 9.8 | 0.9 | 2.2 | 1.35 |
| Kyle Barraclough | Was | mr | 28 | 5 | 0 | 0 | 0 | 2 | 0 | 0 | 3 | 4.5 | 5.6 | 10.2 | 11.6 | 0.7 | 2.1 | 1.13 |
| Aaron Barrett | Atl | mr | 30 | 2 | 0 | 0 | 1 | 1 | 0 | 0 | 2 | 11.3 | 4.4 | 16.5 | 5.2 | 0.9 | 1.2 | 1.74 |
| Jaime Barria | | sp | 21 | 6 | 1 | 0 | 1 | 5 | 0 | 0 | 0 | 13.8 | 1.9 | 16.0 | 5.2 | 1.7 | 2.7 | 1.74 |
| Trevor Bauer | NYA | sp | 27 | 7 | 3 | 0 | 4 | 1 | 0 | 1 | 4 | 7.6 | 3.1 | 10.9 | 9.7 | 1.1 | 3.1 | 1.19 |
| Buddy Baumann* | SF | mr | 30 | 5 | 6 | 0 | 4 | 7 | 0 | 1 | 3 | 6.6 | 3.7 | 10.7 | 8.9 | 0.6 | 2.4 | 1.15 |
| Cam Bedrosian | | mr | 26 | 5 | 4 | 1 | 3 | 11 | 0 | 0 | 2 | 7.4 | 3.4 | 11.3 | 10.8 | 0.8 | 3.2 | 1.20 |
| Tyler Beede | NYA | sp | 25 | 0 | 2 | 0 | 2 | 4 | 0 | 0 | 1 | 9.5 | 3.7 | 13.5 | 7.9 | 1.6 | 2.1 | 1.47 |
| Matt Belisle | NYA | mr | 38 | 1 | 2 | 0 | 3 | 0 | 0 | 1 | 2 | 5.9 | 1.3 | 7.7 | 6.8 | 0.6 | 5.3 | 0.80 |
| Jose Berrios | Cle | sp | 24 | 7 | 2 | 0 | 13 | 6 | 1 | 0 | 1 | 7.7 | 2.6 | 11.1 | 8.7 | 1.2 | 3.3 | 1.15 |
| Dellin Betances | NYA | cl | 30 | 8 | 1 | 0 | 3 | 4 | 0 | 1 | 0 | 5.1 | 4.1 | 9.6 | 12.0 | 0.4 | 2.9 | 1.02 |
| Chad Bettis | LAA | sp | 29 | 11 | 1 | 0 | 9 | 5 | 0 | 0 | 8 | 7.1 | 1.8 | 9.3 | 6.1 | 0.9 | 3.4 | 0.98 |
| Joe Biagini | NYN | sp | 28 | 20 | 2 | 0 | 3 | 6 | 0 | 2 | 3 | 8.0 | 3.5 | 11.9 | 7.3 | 1.1 | 2.1 | 1.28 |
| Jesse Biddle* | Col | mr | 26 | 2 | 3 | 0 | 3 | 3 | 0 | 0 | 2 | 9.8 | 4.2 | 14.5 | 8.3 | 1.4 | 2.0 | 1.55 |
| Shane Bieber | | sp | 23 | 7 | 5 | 0 | 9 | 6 | 0 | 0 | 4 | 8.9 | 0.9 | 10.3 | 5.6 | 0.8 | 6.0 | 1.09 |
| Paul Blackburn | ChA | sp | 24 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 7.2 | 2.6 | 9.8 | 5.7 | 0.6 | 2.2 | 1.09 |
| Jerry Blevins* | Sea | mr | 34 | 3 | 1 | 1 | 2 | 2 | 1 | 0 | 1 | 7.9 | 5.0 | 13.3 | 12.1 | 0.4 | 2.4 | 1.44 |
| Ryan Borucki* | LAN | sp | 24 | 10 | 3 | 0 | 1 | 3 | 0 | 4 | 1 | 11.0 | 4.3 | 15.6 | 9.3 | 2.2 | 2.2 | 1.70 |
| Matthew Bowman | Min | mr | 27 | 4 | 1 | 2 | 1 | 0 | 2 | 0 | 1 | 7.2 | 2.2 | 9.6 | 7.2 | 0.8 | 3.3 | 1.04 |
| Brad Boxberger | LAA | mr | 30 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 7.9 | 5.6 | 13.5 | 12.4 | 2.3 | 2.2 | 1.50 |
| Matt Boyd* | | sp | 27 | 5 | 3 | 0 | 0 | 5 | 0 | 1 | 3 | 9.7 | 2.1 | 11.9 | 7.0 | 0.7 | 3.3 | 1.32 |
| Brad Brach | SD | cl | 32 | 5 | 6 | 1 | 0 | 3 | 0 | 0 | 2 | 6.5 | 3.7 | 10.2 | 10.0 | 1.0 | 2.7 | 1.13 |
| Silvino Bracho | | mr | 25 | 3 | 1 | 1 | 3 | 1 | 0 | 0 | 1 | 8.7 | 4.9 | 14.8 | 14.1 | 2.7 | 2.8 | 1.52 |
| Chasen Bradford | Tam | mr | 28 | 2 | 2 | 0 | 4 | 5 | 0 | 0 | 1 | 10.7 | 2.4 | 14.2 | 4.5 | 0.3 | 1.9 | 1.46 |
| Archie Bradley | Ari | mr | 25 | 2 | 4 | 1 | 2 | 1 | 0 | 0 | 5 | 10.1 | 2.8 | 13.1 | 10.1 | 1.8 | 3.6 | 1.43 |
| Steven Brault* | ChN | sp | 26 | 6 | 6 | 0 | 2 | 4 | 0 | 0 | 3 | 8.5 | 3.6 | 12.3 | 7.0 | 1.2 | 1.9 | 1.35 |
| John Brebbia | | mr | 28 | 1 | 2 | 0 | 1 | 1 | 0 | 0 | 1 | 10.6 | 0.8 | 11.7 | 7.9 | 2.2 | 9.7 | 1.27 |
| Zach Britton* | | cl | 30 | 1 | 0 | 0 | 0 | 5 | 1 | 0 | 2 | 5.2 | 1.9 | 7.0 | 8.9 | 0.2 | 4.8 | 0.78 |
| Clay Buchholz | NYN | sp | 33 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 11.5 | 3.1 | 14.7 | 6.8 | 2.4 | 2.2 | 1.63 |
| Ryan Buchter* | SF | mr | 31 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 6.1 | 3.5 | 9.6 | 9.6 | 0.0 | 2.8 | 1.06 |
| Walker Buehler | Cle | sp | 23 | 19 | 10 | 0 | 0 | 2 | 0 | 0 | 0 | 8.2 | 5.7 | 13.9 | 12.9 | 1.4 | 2.3 | 1.54 |
| Madison Bumgarner* | Tor | sp | 28 | 7 | 5 | 1 | 6 | 1 | 0 | 1 | 1 | 8.4 | 1.3 | 10.1 | 10.0 | 1.5 | 7.5 | 1.09 |
| Aaron Bummer* | | mr | 24 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 11.7 | 8.1 | 19.8 | 9.0 | 0.9 | 1.1 | 2.20 |
| Dylan Bundy | LAA | sp | 25 | 8 | 13 | 0 | 5 | 0 | 0 | 0 | 4 | 8.3 | 2.1 | 10.6 | 8.5 | 1.2 | 4.0 | 1.15 |
| Nick Burdi | LAA | mr | 25 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 7.3 | 0.0 | 8.3 | 11.4 | 1.0 | 99.0 | 0.81 |
| Corbin Burnes | Ari | sp | 23 | 11 | 8 | 4 | 7 | 14 | 0 | 3 | 5 | 7.3 | 4.4 | 12.1 | 10.0 | 0.9 | 2.3 | 1.30 |
| Beau Burrows | Cle | sp | 21 | 3 | 5 | 0 | 8 | 5 | 0 | 0 | 1 | 11.7 | 5.0 | 17.8 | 6.1 | 1.7 | 1.2 | 1.85 |
| Matt Bush | SF | mr | 32 | 10 | 3 | 0 | 1 | 3 | 0 | 0 | 2 | 6.0 | 2.9 | 9.1 | 9.6 | 0.2 | 3.3 | 1.00 |
| Genesis Cabrera* | Ari | sp | 21 | 3 | 1 | 3 | 5 | 11 | 0 | 1 | 3 | 9.8 | 6.5 | 16.9 | 6.1 | 1.1 | 0.9 | 1.81 |
| Carter Capps | Phi | mr | 27 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 8.4 | 3.7 | 12.1 | 9.3 | 0.9 | 2.5 | 1.34 |
| Carlos Carrasco | | sp | 31 | 10 | 7 | 0 | 6 | 4 | 0 | 3 | 1 | 6.1 | 2.0 | 8.3 | 10.9 | 0.7 | 5.4 | 0.90 |
| Cody Carroll | NYN | mr | 25 | 3 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 8.2 | 14.1 | 22.3 | 8.2 | 0.0 | 0.6 | 2.48 |
| Andrew Cashner | Bal | sp | 31 | 6 | 3 | 0 | 5 | 3 | 0 | 0 | 4 | 10.9 | 2.1 | 13.6 | 6.8 | 3.1 | 3.3 | 1.44 |
| Diego Castillo | LAN | mr | 24 | 4 | 4 | 3 | 4 | 21 | 0 | 2 | 7 | 7.4 | 2.3 | 10.1 | 8.3 | 0.9 | 3.5 | 1.09 |
| Jose Castillo* | Tam | mr | 22 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 5.5 | 3.6 | 9.1 | 6.9 | 0.6 | 1.9 | 1.01 |
| Luis Castillo | | sp | 25 | 15 | 10 | 0 | 6 | 8 | 0 | 1 | 4 | 6.8 | 2.1 | 9.2 | 9.0 | 0.6 | 4.2 | 1.00 |
| Miguel Castro | Tex | mr | 23 | 22 | 6 | 2 | 6 | 5 | 1 | 0 | 5 | 10.9 | 2.3 | 13.7 | 6.3 | 1.4 | 2.7 | 1.47 |
| Simon Castro | LAN | mr | 30 | 9 | 5 | 1 | 3 | 7 | 0 | 1 | 3 | 7.4 | 4.2 | 12.0 | 11.3 | 1.5 | 2.7 | 1.29 |
| Brett Cecil* | Det | mr | 31 | 3 | 4 | 0 | 1 | 1 | 0 | 0 | 0 | 8.2 | 2.5 | 10.9 | 9.4 | 1.0 | 3.8 | 1.19 |
| Xavier Cedeno* | Mia | mr | 31 | 3 | 1 | 1 | 2 | 2 | 1 | 0 | 1 | 11.6 | 3.1 | 15.2 | 10.7 | 0.5 | 3.5 | 1.63 |
| Luis Cessa | | sp | 26 | 6 | 0 | 0 | 1 | 2 | 0 | 1 | 2 | 9.5 | 3.3 | 13.2 | 7.6 | 2.0 | 2.3 | 1.43 |
| Jhoulys Chacin | Det | sp | 30 | 2 | 3 | 0 | 5 | 4 | 4 | 2 | 1 | 9.2 | 2.4 | 12.1 | 7.1 | 1.0 | 2.9 | 1.29 |
| Andrew Chafin* | Was | mr | 28 | 2 | 1 | 2 | 1 | 1 | 0 | 0 | 1 | 6.0 | 2.8 | 9.0 | 9.2 | 0.4 | 3.3 | 0.98 |
| Aroldis Chapman* | Oak | cl | 30 | 3 | 5 | 0 | 1 | 1 | 0 | 0 | 0 | 5.1 | 5.6 | 10.8 | 14.3 | 1.0 | 2.6 | 1.18 |
| J.T. Chargois | LAN | mr | 27 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 7.8 | 2.6 | 10.9 | 7.8 | 1.0 | 3.0 | 1.15 |
| Tyler Chatwood | | sp | 28 | 10 | 16 | 2 | 3 | 9 | 4 | 1 | 2 | 8.5 | 4.6 | 13.3 | 7.2 | 1.3 | 1.5 | 1.46 |
| Jesse Chavez | StL | sp | 34 | 4 | 1 | 2 | 1 | 0 | 0 | 1 | 2 | 10.3 | 3.2 | 13.6 | 7.3 | 1.2 | 2.3 | 1.50 |
| Wei-Yin Chen* | Min | sp | 32 | 13 | 9 | 0 | 0 | 1 | 1 | 1 | 5 | 9.0 | 1.7 | 10.7 | 7.5 | 1.2 | 4.4 | 1.19 |
| Yonny Chirinos | ChN | sp | 24 | 1 | 2 | 2 | 5 | 4 | 0 | 3 | 3 | 10.9 | 2.3 | 13.8 | 6.2 | 0.9 | 2.7 | 1.46 |
| Adam Cimber | LAA | mr | 27 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 9.8 | 1.4 | 11.5 | 6.3 | 0.6 | 4.4 | 1.25 |
| Tony Cingrani* | Hou | mr | 28 | 3 | 1 | 1 | 2 | 7 | 3 | 1 | 1 | 10.1 | 4.0 | 14.4 | 9.0 | 1.9 | 2.2 | 1.57 |
| Steve Cishek | Pit | mr | 32 | 1 | 2 | 0 | 2 | 4 | 0 | 0 | 2 | 7.6 | 2.4 | 10.2 | 10.3 | 1.0 | 4.3 | 1.11 |
| Brian Clark* | | mr | 25 | 15 | 4 | 1 | 6 | 2 | 0 | 1 | 4 | 8.0 | 3.1 | 11.6 | 7.3 | 0.4 | 2.4 | 1.23 |
| Taylor Clarke | Mil | sp | 25 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 8.0 | 3.1 | 12.3 | 6.8 | 2.5 | 2.2 | 1.23 |
| Alex Claudio* | Cin | mr | 26 | 2 | 1 | 2 | 3 | 2 | 0 | 1 | 3 | 8.8 | 2.3 | 11.5 | 6.8 | 0.9 | 2.9 | 1.24 |
| Michael Clevinger | Bos | sp | 27 | 6 | 5 | 0 | 1 | 10 | 1 | 0 | 4 | 7.8 | 4.5 | 12.4 | 9.3 | 1.9 | 2.0 | 1.37 |
| Tyler Clippard | Min | mr | 33 | 6 | 0 | 0 | 1 | 5 | 0 | 0 | 4 | 6.6 | 4.2 | 11.0 | 12.2 | 0.7 | 2.9 | 1.20 |
| Corbin Clouse* | | mr | 23 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 7.4 | 8.8 | 16.2 | 8.1 | 2.0 | 0.9 | 1.80 |
| Alex Cobb | | sp | 30 | 10 | 9 | 1 | 11 | 7 | 2 | 0 | 6 | 8.3 | 2.0 | 10.8 | 7.6 | 0.8 | 3.8 | 1.14 |
| Gerrit Cole | LAA | sp | 27 | 29 | 16 | 0 | 9 | 6 | 1 | 0 | 1 | 6.6 | 1.5 | 8.4 | 9.5 | 0.8 | 6.5 | 0.90 |
| Alex Colome | SF | cl | 29 | 7 | 1 | 2 | 2 | 4 | 0 | 1 | 2 | 8.1 | 3.1 | 11.4 | 7.1 | 0.6 | 2.3 | 1.24 |
| Adam Conley* | | sp | 28 | 0 | 0 | 1 | 2 | 2 | 0 | 0 | 0 | 9.3 | 2.6 | 12.4 | 7.7 | 1.3 | 2.9 | 1.32 |
| Patrick Corbin* | | sp | 28 | 5 | 2 | 2 | 5 | 10 | 0 | 2 | 3 | 8.3 | 2.9 | 11.5 | 8.5 | 1.2 | 2.9 | 1.25 |
| Nestor Cortes* | Tam | mr | 23 | 3 | 3 | 2 | 3 | 1 | 1 | 0 | 7 | 8.5 | 3.5 | 12.3 | 8.8 | 1.9 | 2.5 | 1.33 |
| Daniel Coulombe* | ChA | mr | 28 | 3 | 2 | 0 | 2 | 5 | 0 | 1 | 2 | 7.0 | 1.7 | 9.0 | 9.7 | 1.3 | 5.8 | 0.97 |
| Kyle Crick | Cle | mr | 25 | 14 | 4 | 0 | 6 | 8 | 0 | 1 | 2 | 9.0 | 5.7 | 15.4 | 10.5 | 1.3 | 1.8 | 1.64 |
| Johnny Cueto | Mil | sp | 32 | 5 | 4 | 0 | 3 | 1 | 0 | 1 | 3 | 11.2 | 3.5 | 15.1 | 7.9 | 1.1 | 2.2 | 1.64 |
| John Curtiss | Was | mr | 25 | 6 | 2 | 0 | 4 | 10 | 0 | 1 | 4 | 6.8 | 4.3 | 11.5 | 10.1 | 0.7 | 2.3 | 1.23 |
| Yu Darvish | NYA | sp | 31 | 2 | 0 | 0 | 3 | 3 | 1 | 0 | 0 | 6.9 | 2.2 | 9.5 | 9.8 | 1.4 | 4.5 | 1.01 |
| Zach Davies | | sp | 25 | 1 | 6 | 0 | 2 | 1 | 1 | 2 | 0 | 9.0 | 2.6 | 11.7 | 7.5 | 1.2 | 2.9 | 1.29 |
| Austin Davis* | Oak | mr | 25 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.5 | 0.0 | 4.5 | 18.0 | 0.0 | 99.0 | 0.50 |
| Wade Davis | Det | cl | 32 | 2 | 1 | 0 | 3 | 4 | 0 | 1 | 1 | 6.1 | 2.8 | 9.2 | 10.6 | 1.3 | 3.8 | 0.99 |
| Enyel de los Santos | Oak | sp | 22 | 3 | 1 | 0 | 2 | 3 | 0 | 0 | 1 | 9.3 | 3.1 | 12.8 | 6.8 | 0.8 | 2.2 | 1.37 |
| Jacob deGrom | Tor | sp | 30 | 14 | 12 | 0 | 1 | 4 | 0 | 0 | 2 | 8.0 | 2.1 | 10.1 | 9.4 | 1.1 | 4.5 | 1.12 |
| Randall Delgado | Mil | mr | 28 | 12 | 4 | 2 | 2 | 5 | 0 | 2 | 1 | 7.5 | 3.0 | 10.7 | 8.3 | 0.7 | 2.8 | 1.17 |
| Anthony DeSclafani | Ari | sp | 28 | 16 | 8 | 2 | 9 | 7 | 0 | 2 | 5 | 7.9 | 2.6 | 11.0 | 6.4 | 0.8 | 2.5 | 1.16 |
| Chris Devenski | Det | mr | 27 | 7 | 4 | 0 | 3 | 2 | 1 | 0 | 2 | 6.0 | 1.6 | 8.0 | 10.7 | 0.7 | 6.6 | 0.85 |
| Dayan Diaz | NYA | mr | 29 | 4 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 8.6 | 1.3 | 9.9 | 11.2 | 0.7 | 8.5 | 1.10 |
| Edwin Diaz | Cle | cl | 24 | 8 | 2 | 1 | 2 | 4 | 1 | 0 | 0 | 7.0 | 3.1 | 10.3 | 14.0 | 0.5 | 4.5 | 1.12 |
| Miguel Diaz | Tex | mr | 23 | 5 | 2 | 0 | 3 | 4 | 0 | 0 | 1 | 10.0 | 3.6 | 14.4 | 7.2 | 1.3 | 2.0 | 1.51 |
| Jake Diekman* | SF | mr | 31 | 2 | 1 | 0 | 1 | 7 | 0 | 0 | 4 | 6.7 | 5.1 | 12.0 | 11.6 | 0.7 | 2.3 | 1.31 |
| Marcos Diplan | Atl | sp | 21 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.0 | 0.0 | 6.0 | 6.0 | 0.0 | 99.0 | 0.67 |
| Seranthony Dominguez | | sp | 23 | 11 | 10 | 0 | 1 | 7 | 0 | 1 | 1 | 8.2 | 4.2 | 12.6 | 9.8 | 1.4 | 2.3 | 1.38 |
| Sean Doolittle* | SF | cl | 31 | 3 | 4 | 1 | 1 | 0 | 0 | 1 | 2 | 9.1 | 1.6 | 10.8 | 13.7 | 1.9 | 8.5 | 1.19 |
| Brian Duensing* | StL | mr | 35 | 3 | 1 | 2 | 1 | 3 | 0 | 0 | 1 | 6.0 | 3.1 | 9.3 | 6.0 | 0.5 | 1.9 | 1.01 |
| Danny Duffy* | SF | sp | 29 | 5 | 8 | 4 | 8 | 4 | 0 | 4 | 3 | 6.7 | 2.5 | 9.6 | 8.3 | 0.9 | 3.3 | 1.03 |
| Zach Duke* | KC | mr | 35 | 1 | 2 | 0 | 2 | 3 | 0 | 0 | 1 | 6.6 | 3.6 | 10.6 | 9.3 | 0.6 | 2.6 | 1.14 |
| Mike Dunn* | Min | mr | 33 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 6.1 | 4.2 | 10.2 | 10.2 | 0.5 | 2.4 | 1.14 |
| Sam Dyson | Tam | cl | 30 | 3 | 2 | 0 | 1 | 0 | 1 | 0 | 1 | 6.6 | 3.6 | 10.6 | 5.5 | 0.7 | 1.5 | 1.14 |
| Mark Ecker | Bal | mr | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18.0 | 13.5 | 31.5 | 0.0 | 4.5 | 0.0 | 3.50 |
| Carl Edwards Jr. | Mia | mr | 26 | 2 | 1 | 0 | 0 | 7 | 0 | 2 | 2 | 5.5 | 5.2 | 10.6 | 13.4 | 0.8 | 2.6 | 1.18 |
| Zach Eflin | Tam | sp | 24 | 4 | 5 | 0 | 11 | 4 | 0 | 1 | 4 | 10.1 | 1.9 | 12.9 | 6.3 | 1.6 | 3.3 | 1.34 |
| Jerad Eickhoff | LAA | sp | 27 | 5 | 4 | 0 | 2 | 2 | 0 | 0 | 0 | 8.5 | 1.9 | 10.9 | 6.0 | 1.4 | 3.1 | 1.15 |
| Nathan Eovaldi | Ari | sp | 28 | 7 | 5 | 4 | 3 | 6 | 0 | 3 | 4 | 11.3 | 2.8 | 14.3 | 7.6 | 1.1 | 2.7 | 1.56 |
| Robbie Erlin* | Tex | sp | 27 | 22 | 9 | 1 | 3 | 7 | 0 | 4 | 3 | 10.0 | 2.1 | 12.2 | 7.3 | 1.3 | 3.5 | 1.34 |
| Luis Escobar | Bos | sp | 22 | 1 | 1 | 0 | 2 | 7 | 0 | 0 | 0 | 9.9 | 5.7 | 16.6 | 5.7 | 1.6 | 1.0 | 1.73 |
| Thomas Eshelman | ChA | sp | 24 | 3 | 6 | 0 | 3 | 1 | 0 | 0 | 5 | 8.6 | 1.4 | 10.2 | 7.8 | 1.6 | 5.6 | 1.11 |
| Carlos Estevez | Min | mr | 25 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 7.5 | 4.5 | 13.5 | 6.8 | 0.8 | 1.5 | 1.33 |
| Marco Estrada | Cin | sp | 34 | 9 | 5 | 0 | 2 | 0 | 0 | 2 | 3 | 5.4 | 3.0 | 8.6 | 8.0 | 1.1 | 2.6 | 0.94 |
| Jeurys Familia | | cl | 28 | 3 | 3 | 1 | 0 | 2 | 1 | 0 | 2 | 9.1 | 4.0 | 13.1 | 9.7 | 1.2 | 2.4 | 1.46 |
| Jacob Faria | Tam | sp | 24 | 5 | 0 | 0 | 4 | 5 | 0 | 0 | 3 | 8.9 | 3.5 | 12.8 | 10.0 | 1.4 | 2.9 | 1.37 |
| Erick Fedde | Cle | sp | 25 | 6 | 1 | 0 | 5 | 3 | 0 | 1 | 3 | 10.3 | 3.7 | 14.8 | 6.0 | 1.3 | 1.6 | 1.56 |
| Michael Feliz | Det | mr | 25 | 5 | 5 | 0 | 4 | 11 | 0 | 0 | 1 | 7.5 | 3.5 | 11.2 | 11.4 | 1.5 | 3.3 | 1.22 |
| Riley Ferrell | Oak | mr | 24 | 3 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 6.9 | 5.2 | 12.1 | 6.3 | 0.6 | 1.2 | 1.34 |
| Josh Fields | Phi | mr | 32 | 3 | 1 | 1 | 3 | 0 | 0 | 0 | 3 | 7.9 | 2.6 | 10.9 | 11.4 | 0.6 | 4.4 | 1.17 |
| Mike Fiers | StL | sp | 33 | 6 | 5 | 2 | 4 | 4 | 0 | 0 | 1 | 8.4 | 2.3 | 10.9 | 7.8 | 1.7 | 3.4 | 1.18 |
| Brandon Finnegan* | Oak | sp | 25 | 12 | 2 | 0 | 3 | 1 | 0 | 0 | 5 | 6.5 | 3.4 | 10.3 | 8.0 | 1.3 | 2.3 | 1.10 |
| Doug Fister | Mil | sp | 34 | 1 | 2 | 0 | 1 | 2 | 0 | 0 | 0 | 8.7 | 2.6 | 11.5 | 6.0 | 0.3 | 2.3 | 1.26 |
| Jack Flaherty | Bal | sp | 22 | 13 | 8 | 0 | 8 | 10 | 1 | 0 | 4 | 8.6 | 2.7 | 11.7 | 8.1 | 1.2 | 3.0 | 1.26 |
| Chris Flexen | Hou | sp | 23 | 9 | 9 | 0 | 7 | 11 | 0 | 1 | 6 | 9.8 | 2.5 | 12.7 | 7.9 | 1.6 | 3.2 | 1.36 |
| Jose Flores | Cin | mr | 25 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0 | 9.0 | 9.0 | 9.0 | 0.0 | 1.0 | 1.00 |
| Brian Flynn* | Phi | mr | 28 | 16 | 5 | 2 | 8 | 19 | 0 | 3 | 10 | 7.6 | 3.2 | 11.1 | 8.3 | 0.7 | 2.6 | 1.20 |
| Mike Foltynewicz | | sp | 26 | 3 | 2 | 1 | 6 | 4 | 1 | 2 | 3 | 7.9 | 2.9 | 11.2 | 8.5 | 0.9 | 3.0 | 1.20 |
| Wilmer Font | SF | sp | 28 | 10 | 8 | 2 | 15 | 5 | 0 | 3 | 3 | 7.7 | 2.4 | 10.8 | 9.7 | 1.1 | 4.1 | 1.12 |
| Kyle Freeland* | ChA | sp | 25 | 7 | 7 | 1 | 9 | 1 | 0 | 0 | 3 | 8.3 | 3.1 | 11.9 | 6.9 | 1.1 | 2.3 | 1.26 |
| Sam Freeman* | NYN | mr | 31 | 2 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 7.1 | 5.0 | 12.4 | 11.7 | 0.7 | 2.4 | 1.34 |
| Max Fried* | Ari | sp | 24 | 11 | 0 | 0 | 2 | 1 | 0 | 2 | 2 | 12.6 | 6.8 | 20.2 | 7.9 | 1.0 | 1.1 | 2.16 |
| Jace Fry* | | mr | 24 | 3 | 1 | 0 | 2 | 11 | 0 | 0 | 1 | 7.7 | 5.6 | 13.7 | 8.4 | 0.2 | 1.5 | 1.48 |
| Carson Fulmer | ChA | sp | 24 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 3.4 | 6.8 | 13.5 | 6.8 | 0.0 | 1.0 | 1.13 |
| Michael Fulmer | Mia | sp | 25 | 1 | 4 | 0 | 10 | 2 | 1 | 2 | 1 | 6.8 | 1.8 | 9.1 | 8.7 | 0.6 | 4.9 | 0.96 |
| Giovanny Gallegos | SF | mr | 26 | 4 | 3 | 2 | 3 | 10 | 0 | 0 | 2 | 8.1 | 2.4 | 10.8 | 12.6 | 0.8 | 5.2 | 1.17 |
| John Gant | Hou | sp | 25 | 28 | 5 | 1 | 10 | 2 | 0 | 0 | 4 | 8.3 | 2.7 | 11.7 | 9.5 | 1.4 | 3.5 | 1.22 |
| Jaime Garcia* | Atl | sp | 31 | 40 | 14 | 3 | 6 | 12 | 1 | 4 | 10 | 8.9 | 3.0 | 12.2 | 8.2 | 0.9 | 2.7 | 1.32 |
| Luis Garcia | Bos | mr | 31 | 3 | 5 | 0 | 0 | 4 | 0 | 0 | 2 | 10.5 | 2.4 | 12.9 | 9.2 | 0.6 | 3.8 | 1.44 |
| Yimi Garcia | SD | mr | 27 | 3 | 1 | 0 | 0 | 0 | 1 | 0 | 3 | 8.6 | 2.0 | 10.5 | 9.0 | 2.0 | 4.6 | 1.17 |
| Nick Gardewine | Cle | mr | 24 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 3 | 10.6 | 5.8 | 16.9 | 8.2 | 1.0 | 1.4 | 1.82 |
| Amir Garrett* | Tex | sp | 26 | 26 | 4 | 4 | 6 | 14 | 2 | 1 | 3 | 9.1 | 4.5 | 13.9 | 9.0 | 1.8 | 2.0 | 1.51 |
| Matt Garza | Atl | sp | 34 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16.2 | 5.4 | 21.6 | 0.0 | 0.0 | 0.0 | 2.40 |
| Kevin Gausman | | sp | 27 | 8 | 6 | 1 | 3 | 2 | 0 | 1 | 7 | 8.4 | 3.2 | 11.8 | 9.8 | 1.5 | 3.1 | 1.29 |
| Cory Gearrin | Atl | mr | 32 | 7 | 3 | 1 | 3 | 3 | 2 | 0 | 1 | 10.2 | 3.1 | 13.6 | 8.2 | 1.1 | 2.7 | 1.48 |
| Domingo German | Oak | sp | 25 | 1 | 3 | 0 | 2 | 5 | 0 | 0 | 1 | 9.8 | 1.2 | 11.2 | 9.5 | 1.0 | 8.2 | 1.22 |
| Ian Gibaut | | mr | 24 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 9.8 | 2.9 | 13.3 | 6.4 | 2.0 | 2.2 | 1.42 |
| Kyle Gibson | Bos | sp | 30 | 11 | 7 | 0 | 5 | 4 | 1 | 1 | 6 | 8.7 | 3.1 | 12.0 | 6.8 | 0.8 | 2.2 | 1.31 |
| Ken Giles | Sea | cl | 27 | 5 | 0 | 0 | 1 | 3 | 1 | 0 | 1 | 6.8 | 1.8 | 8.7 | 13.7 | 1.5 | 7.8 | 0.95 |
| Lucas Giolito | Col | sp | 23 | 23 | 3 | 2 | 10 | 9 | 0 | 2 | 7 | 10.7 | 3.1 | 14.3 | 9.2 | 1.2 | 2.9 | 1.53 |
| Mychal Givens | Cin | mr | 28 | 9 | 3 | 0 | 8 | 2 | 1 | 1 | 1 | 7.7 | 3.6 | 12.1 | 10.8 | 0.9 | 3.0 | 1.25 |
| Tyler Glasnow | Oak | sp | 24 | 29 | 15 | 0 | 7 | 10 | 0 | 1 | 3 | 7.1 | 3.7 | 11.2 | 11.5 | 0.6 | 3.1 | 1.20 |
| Koda Glover | Cle | mr | 25 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 10.5 | 1.8 | 12.3 | 8.4 | 2.8 | 4.8 | 1.36 |
| Zack Godley | NYN | sp | 28 | 12 | 10 | 0 | 5 | 10 | 0 | 1 | 3 | 8.0 | 2.8 | 11.1 | 9.2 | 1.3 | 3.3 | 1.20 |
| Luiz Gohara* | Sea | sp | 21 | 1 | 2 | 0 | 1 | 3 | 1 | 0 | 0 | 6.8 | 3.4 | 10.5 | 9.7 | 0.3 | 2.8 | 1.14 |
| Austin Gomber* | StL | sp | 24 | 7 | 6 | 1 | 5 | 4 | 0 | 3 | 2 | 7.1 | 3.6 | 10.9 | 7.2 | 1.1 | 2.0 | 1.19 |
| Stephen Gonsalves* | KC | sp | 23 | 36 | 6 | 0 | 11 | 15 | 1 | 1 | 2 | 7.4 | 4.3 | 12.3 | 7.9 | 1.0 | 1.8 | 1.30 |
| Marco Gonzales* | | sp | 26 | 6 | 4 | 1 | 1 | 1 | 1 | 1 | 2 | 8.8 | 3.0 | 11.9 | 7.8 | 0.7 | 2.6 | 1.32 |
| Gio Gonzalez* | Cin | sp | 32 | 15 | 6 | 2 | 3 | 5 | 0 | 4 | 6 | 6.5 | 3.2 | 9.8 | 8.7 | 0.7 | 2.8 | 1.08 |
| Nick Goody | Oak | mr | 26 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0 | 5.8 | 5.8 | 19.3 | 0.0 | 3.3 | 0.64 |
| Matt Grace* | LAA | mr | 29 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 7.8 | 1.6 | 9.9 | 5.7 | 0.0 | 3.7 | 1.04 |
| Kendall Graveman | Cle | sp | 27 | 4 | 1 | 0 | 2 | 3 | 0 | 0 | 0 | 5.8 | 2.7 | 8.8 | 6.8 | 0.5 | 2.5 | 0.95 |
| Jon Gray | | sp | 26 | 19 | 5 | 1 | 5 | 7 | 1 | 3 | 4 | 7.8 | 2.2 | 10.2 | 9.0 | 0.9 | 4.1 | 1.11 |
| Sonny Gray | SF | sp | 28 | 9 | 11 | 1 | 7 | 13 | 0 | 7 | 2 | 8.0 | 2.8 | 11.1 | 8.6 | 1.1 | 3.0 | 1.20 |
| Chad Green | ChN | mr | 27 | 5 | 1 | 2 | 5 | 1 | 0 | 0 | 1 | 7.9 | 3.5 | 12.0 | 11.6 | 1.1 | 3.3 | 1.27 |
| Shane Greene | Bal | mr | 29 | 5 | 1 | 0 | 4 | 1 | 0 | 0 | 1 | 6.0 | 3.9 | 10.7 | 8.4 | 1.0 | 2.2 | 1.10 |
| Zack Greinke | Bal | sp | 34 | 20 | 10 | 0 | 3 | 8 | 1 | 0 | 4 | 7.8 | 1.9 | 9.8 | 8.5 | 1.3 | 4.5 | 1.08 |
| Robert Gsellman | Mia | sp | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.2 | 1.3 | 10.5 | 7.2 | 0.7 | 5.5 | 1.17 |
| Deolis Guerra | Atl | mr | 29 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 18.0 | 0.0 | 18.0 | 0.0 | 0.0 | 0.0 | 2.00 |
| Junior Guerra | ChN | sp | 33 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 9.0 | 5.7 | 14.7 | 12.3 | 0.8 | 2.1 | 1.64 |
| Josh Hader* | Oak | mr | 24 | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 5.9 | 4.2 | 10.2 | 15.4 | 1.7 | 3.7 | 1.12 |
| Matt Hall* | ChN | sp | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18.0 | 9.0 | 27.0 | 9.0 | 0.0 | 1.0 | 3.00 |
| Cole Hamels* | Cin | sp | 34 | 26 | 6 | 1 | 10 | 6 | 1 | 3 | 3 | 7.7 | 2.9 | 11.1 | 8.1 | 1.0 | 2.8 | 1.18 |
| Jason Hammel | Sea | sp | 35 | 44 | 8 | 0 | 12 | 7 | 1 | 0 | 4 | 9.2 | 2.2 | 11.9 | 7.7 | 1.7 | 3.6 | 1.26 |
| Brad Hand* | SD | cl | 28 | 8 | 4 | 3 | 8 | 4 | 0 | 1 | 0 | 8.3 | 3.3 | 12.5 | 12.4 | 0.9 | 3.8 | 1.29 |
| Alec Hansen | KC | sp | 23 | 3 | 2 | 0 | 0 | 2 | 0 | 0 | 1 | 6.8 | 3.6 | 10.3 | 10.3 | 0.9 | 2.9 | 1.15 |
| J.A. Happ* | ChN | sp | 35 | 13 | 4 | 0 | 4 | 3 | 0 | 1 | 3 | 7.2 | 3.3 | 10.7 | 10.2 | 0.8 | 3.1 | 1.17 |
| Blaine Hardy* | Mil | mr | 31 | 5 | 4 | 1 | 1 | 3 | 0 | 0 | 1 | 8.6 | 3.1 | 11.8 | 7.8 | 0.6 | 2.5 | 1.30 |
| Will Harris | Det | mr | 33 | 8 | 0 | 1 | 4 | 1 | 0 | 0 | 0 | 10.1 | 1.6 | 12.4 | 12.4 | 1.8 | 7.9 | 1.29 |
| Hunter Harvey | Tex | sp | 23 | 34 | 7 | 0 | 3 | 16 | 0 | 0 | 4 | 9.1 | 5.3 | 14.7 | 11.2 | 1.5 | 2.1 | 1.60 |
| Matt Harvey | | sp | 29 | 9 | 5 | 1 | 11 | 3 | 1 | 1 | 3 | 9.3 | 1.9 | 11.8 | 7.3 | 1.0 | 3.8 | 1.24 |
| Andrew Heaney* | | sp | 27 | 16 | 11 | 0 | 8 | 4 | 1 | 5 | 4 | 8.7 | 2.6 | 11.7 | 8.3 | 1.0 | 3.2 | 1.25 |
| Taylor Hearn* | KC | sp | 23 | 10 | 3 | 0 | 1 | 12 | 0 | 0 | 3 | 7.9 | 4.9 | 12.9 | 9.3 | 2.0 | 1.9 | 1.42 |
| Ben Heller | ChA | mr | 26 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 12.7 | 0.0 | 12.7 | 11.1 | 1.6 | 99.0 | 1.41 |
| Jeremy Hellickson | LAN | sp | 31 | 6 | 3 | 0 | 3 | 0 | 0 | 0 | 0 | 10.6 | 2.7 | 14.0 | 6.9 | 1.2 | 2.5 | 1.47 |
| Ryan Helsley | Tam | sp | 23 | 0 | 1 | 0 | 2 | 4 | 0 | 0 | 0 | 12.5 | 3.2 | 16.4 | 7.1 | 1.6 | 2.2 | 1.75 |
| Heath Hembree | SD | mr | 29 | 14 | 3 | 3 | 4 | 2 | 1 | 1 | 4 | 7.2 | 3.0 | 10.6 | 9.0 | 0.9 | 3.0 | 1.13 |
| Kyle Hendricks | Was | sp | 28 | 9 | 5 | 2 | 11 | 5 | 0 | 5 | 6 | 7.6 | 2.0 | 10.0 | 7.3 | 1.0 | 3.8 | 1.07 |
| Liam Hendriks | ChN | mr | 29 | 7 | 2 | 1 | 1 | 5 | 0 | 0 | 2 | 10.1 | 3.4 | 13.7 | 10.9 | 0.7 | 3.2 | 1.50 |
| Jimmy Herget | Col | mr | 24 | 8 | 5 | 0 | 2 | 0 | 0 | 1 | 3 | 8.6 | 4.6 | 13.4 | 12.1 | 1.0 | 2.7 | 1.46 |
| Kevin Herget | LAA | mr | 27 | 8 | 6 | 0 | 5 | 7 | 0 | 0 | 1 | 6.3 | 3.1 | 9.7 | 7.5 | 0.8 | 2.4 | 1.04 |
| David Hernandez | Mil | mr | 33 | 3 | 0 | 3 | 1 | 2 | 1 | 2 | 3 | 11.4 | 2.7 | 14.2 | 9.2 | 1.8 | 3.5 | 1.56 |
| Felix Hernandez | Tor | sp | 32 | 13 | 6 | 1 | 5 | 13 | 1 | 2 | 4 | 10.1 | 4.0 | 14.6 | 7.2 | 1.9 | 1.8 | 1.57 |
| Kelvin Herrera | Det | cl | 28 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 5.5 | 4.4 | 10.4 | 10.4 | 0.5 | 2.4 | 1.10 |
| Ronald Herrera | Atl | sp | 23 | 22 | 13 | 2 | 12 | 13 | 1 | 4 | 8 | 9.3 | 4.1 | 13.9 | 6.8 | 1.1 | 1.7 | 1.49 |
| Trevor Hildenberger | Min | mr | 27 | 12 | 3 | 0 | 3 | 1 | 0 | 0 | 1 | 9.4 | 1.3 | 11.1 | 10.6 | 0.8 | 8.3 | 1.19 |
| Rich Hill* | Was | sp | 38 | 39 | 6 | 3 | 5 | 4 | 0 | 5 | 2 | 7.1 | 4.4 | 11.8 | 11.5 | 1.2 | 2.6 | 1.28 |
| Yoshihisa Hirano | LAN | mr | 34 | 3 | 1 | 3 | 2 | 4 | 0 | 1 | 2 | 7.3 | 3.3 | 10.9 | 7.6 | 1.0 | 2.3 | 1.18 |
| Jeff Hoffman | Sea | sp | 25 | 8 | 1 | 0 | 7 | 5 | 0 | 2 | 3 | 6.7 | 2.8 | 10.0 | 8.4 | 0.8 | 3.1 | 1.05 |
| Jonathan Holder | LAA | mr | 25 | 3 | 0 | 0 | 2 | 1 | 0 | 0 | 2 | 6.1 | 1.8 | 8.2 | 11.4 | 0.7 | 6.5 | 0.88 |
| Derek Holland* | NYN | sp | 31 | 1 | 0 | 2 | 0 | 1 | 1 | 0 | 1 | 7.8 | 5.7 | 13.5 | 9.2 | 0.7 | 1.6 | 1.50 |
| Greg Holland | | cl | 32 | 1 | 0 | 0 | 1 | 5 | 1 | 1 | 2 | 6.4 | 3.6 | 10.2 | 10.0 | 0.2 | 2.8 | 1.11 |
| J.J. Hoover | Bal | mr | 30 | 4 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 7.6 | 3.4 | 11.2 | 10.1 | 1.8 | 2.9 | 1.22 |
| Sam Howard* | KC | sp | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18.0 | 0.0 | 18.0 | 9.0 | 9.0 | 99.0 | 2.00 |
| James Hoyt | Cin | mr | 31 | 3 | 1 | 0 | 3 | 4 | 0 | 0 | 2 | 6.3 | 3.4 | 10.2 | 11.0 | 0.5 | 3.3 | 1.08 |
| Chih-Wei Hu | Mia | mr | 24 | 9 | 3 | 1 | 4 | 2 | 0 | 3 | 4 | 9.0 | 2.7 | 12.0 | 7.9 | 1.1 | 2.9 | 1.31 |
| Dakota Hudson | KC | sp | 23 | 4 | 3 | 0 | 7 | 15 | 0 | 1 | 1 | 10.7 | 3.7 | 15.1 | 5.1 | 0.9 | 1.4 | 1.61 |
| Jared Hughes | Bos | mr | 32 | 1 | 1 | 1 | 3 | 3 | 0 | 0 | 4 | 7.4 | 5.1 | 13.2 | 4.6 | 1.2 | 0.9 | 1.38 |
| Tommy Hunter | Phi | mr | 31 | 5 | 0 | 3 | 1 | 3 | 1 | 0 | 0 | 8.8 | 2.0 | 10.9 | 7.9 | 0.4 | 4.0 | 1.19 |
| Raisel Iglesias | | cl | 28 | 3 | 2 | 0 | 4 | 3 | 0 | 0 | 2 | 5.8 | 3.0 | 9.2 | 7.8 | 0.4 | 2.6 | 0.98 |
| Gregory Infante | Cin | mr | 30 | 2 | 1 | 0 | 2 | 1 | 1 | 0 | 1 | 7.9 | 3.8 | 12.4 | 7.9 | 0.0 | 2.1 | 1.29 |
| Luke Jackson | KC | mr | 26 | 16 | 18 | 0 | 10 | 23 | 0 | 1 | 8 | 7.2 | 3.6 | 11.3 | 8.4 | 0.9 | 2.3 | 1.21 |
| Kenley Jansen | | cl | 30 | 3 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 7.2 | 2.2 | 9.5 | 14.8 | 1.4 | 6.9 | 1.04 |
| Jeremy Jeffress | Atl | mr | 30 | 6 | 4 | 2 | 9 | 7 | 0 | 0 | 1 | 9.3 | 3.2 | 13.3 | 7.0 | 0.8 | 2.2 | 1.39 |
| Dan Jennings* | Was | mr | 31 | 1 | 3 | 0 | 0 | 4 | 1 | 0 | 2 | 8.3 | 5.1 | 13.4 | 6.8 | 0.3 | 1.3 | 1.49 |
| Joe Jimenez | KC | mr | 23 | 7 | 4 | 0 | 6 | 1 | 0 | 1 | 1 | 8.3 | 2.5 | 11.5 | 9.4 | 1.2 | 3.7 | 1.21 |
| Brian Johnson* | Mil | sp | 27 | 4 | 1 | 2 | 3 | 1 | 0 | 3 | 5 | 8.0 | 4.4 | 12.8 | 5.8 | 1.3 | 1.3 | 1.38 |
| Connor Jones | Mil | sp | 23 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 13.5 | 3.9 | 17.4 | 5.8 | 7.7 | 1.5 | 1.93 |
| Nate Jones | Was | mr | 32 | 2 | 1 | 1 | 3 | 4 | 0 | 2 | 2 | 6.1 | 2.9 | 9.5 | 11.6 | 0.8 | 4.0 | 1.00 |
| Jake Junis | LAN | sp | 25 | 16 | 6 | 3 | 10 | 5 | 0 | 7 | 2 | 9.0 | 2.4 | 11.9 | 8.7 | 1.3 | 3.6 | 1.26 |
| Tommy Kahnle | LAA | mr | 28 | 2 | 2 | 1 | 1 | 4 | 2 | 0 | 2 | 6.1 | 4.1 | 10.4 | 13.4 | 0.0 | 3.3 | 1.13 |
| Keone Kela | | mr | 25 | 6 | 3 | 1 | 1 | 5 | 0 | 0 | 2 | 4.5 | 2.2 | 6.8 | 12.9 | 0.6 | 5.9 | 0.74 |
| Brad Keller | | sp | 22 | 5 | 8 | 0 | 3 | 5 | 1 | 1 | 1 | 9.1 | 3.7 | 13.2 | 5.2 | 1.4 | 1.4 | 1.42 |
| Mitch Keller | | sp | 22 | 13 | 2 | 0 | 1 | 1 | 0 | 1 | 3 | 13.7 | 2.7 | 16.6 | 6.3 | 2.0 | 2.3 | 1.83 |
| Joe Kelly | Mil | mr | 30 | 7 | 3 | 0 | 0 | 4 | 0 | 1 | 2 | 7.0 | 3.1 | 10.1 | 9.5 | 0.2 | 3.0 | 1.12 |
| Brett Kennedy | Cin | sp | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 6.4 | 7.9 | 14.3 | 7.9 | 1.6 | 1.0 | 1.59 |
| Ian Kennedy | Hou | sp | 33 | 19 | 13 | 0 | 5 | 9 | 1 | 1 | 4 | 7.8 | 3.1 | 11.1 | 8.4 | 1.7 | 2.8 | 1.21 |
| Clayton Kershaw* | | sp | 30 | 4 | 2 | 1 | 3 | 5 | 0 | 1 | 0 | 6.6 | 1.7 | 8.4 | 11.6 | 1.3 | 7.0 | 0.91 |
| Dallas Keuchel* | ChN | sp | 30 | 7 | 6 | 0 | 6 | 9 | 1 | 4 | 3 | 7.3 | 3.1 | 10.6 | 7.4 | 0.7 | 2.4 | 1.15 |
| Franklyn Kilome | | sp | 23 | 6 | 2 | 0 | 6 | 10 | 0 | 1 | 3 | 8.3 | 5.7 | 15.4 | 7.0 | 0.9 | 1.2 | 1.56 |
| Craig Kimbrel | Tor | cl | 30 | 3 | 0 | 0 | 2 | 7 | 0 | 1 | 1 | 5.3 | 4.7 | 10.3 | 15.0 | 1.4 | 3.2 | 1.11 |
| Nick Kingham | Hou | sp | 26 | 18 | 7 | 0 | 12 | 3 | 1 | 0 | 6 | 9.1 | 1.6 | 11.4 | 5.5 | 1.1 | 3.5 | 1.18 |
| Brandon Kintzler | Col | cl | 33 | 2 | 0 | 1 | 6 | 8 | 0 | 2 | 0 | 14.3 | 2.4 | 17.4 | 5.7 | 1.4 | 2.4 | 1.85 |
| Andrew Kittredge | Mia | mr | 28 | 0 | 4 | 4 | 0 | 4 | 0 | 1 | 2 | 8.7 | 2.0 | 10.7 | 9.0 | 0.6 | 4.4 | 1.19 |
| Corey Kluber | SF | sp | 32 | 15 | 15 | 0 | 4 | 5 | 0 | 0 | 4 | 7.0 | 1.6 | 8.8 | 11.2 | 0.7 | 6.8 | 0.96 |
| Corey Knebel | | cl | 26 | 2 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 6.6 | 4.2 | 10.8 | 15.6 | 0.9 | 3.7 | 1.20 |
| Tom Koehler | Hou | sp | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.1 | 3.9 | 9.0 | 10.3 | 1.3 | 2.7 | 1.00 |
| George Kontos | | mr | 33 | 9 | 3 | 0 | 0 | 4 | 0 | 0 | 2 | 8.2 | 2.2 | 10.3 | 8.3 | 1.5 | 3.9 | 1.15 |
| Chad Kuhl | Col | sp | 25 | 2 | 0 | 0 | 2 | 2 | 0 | 0 | 0 | 7.0 | 2.6 | 9.9 | 8.5 | 0.9 | 3.2 | 1.07 |
| Brady Lail | Hou | sp | 24 | 11 | 5 | 0 | 7 | 12 | 0 | 0 | 3 | 11.7 | 2.3 | 14.4 | 6.1 | 2.7 | 2.7 | 1.55 |
| Eric Lauer* | Hou | sp | 23 | 20 | 5 | 0 | 3 | 3 | 1 | 0 | 4 | 10.8 | 3.1 | 14.1 | 9.1 | 2.2 | 2.9 | 1.54 |
| Derek Law | Mia | mr | 27 | 2 | 4 | 3 | 2 | 8 | 0 | 1 | 5 | 10.3 | 3.8 | 14.3 | 7.0 | 0.9 | 1.8 | 1.56 |
| Mike Leake | Cin | sp | 30 | 13 | 7 | 3 | 8 | 7 | 0 | 4 | 4 | 8.5 | 1.8 | 10.6 | 6.5 | 0.7 | 3.7 | 1.14 |
| Wade LeBlanc* | Was | mr | 33 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 12.5 | 3.9 | 17.4 | 6.8 | 1.0 | 1.8 | 1.82 |
| Jose Leclerc | LAA | mr | 24 | 5 | 2 | 1 | 1 | 3 | 0 | 1 | 4 | 5.4 | 6.7 | 12.2 | 7.7 | 0.5 | 1.1 | 1.35 |
| Dominic Leone | | mr | 26 | 2 | 3 | 1 | 0 | 2 | 0 | 0 | 2 | 9.4 | 3.7 | 13.1 | 11.8 | 0.8 | 3.2 | 1.46 |
| Jon Lester* | | sp | 34 | 24 | 8 | 2 | 7 | 4 | 1 | 3 | 2 | 6.5 | 2.3 | 9.1 | 9.3 | 0.7 | 4.0 | 0.98 |
| Artie Lewicki | LAN | sp | 26 | 11 | 4 | 2 | 5 | 0 | 0 | 2 | 5 | 9.0 | 2.5 | 11.9 | 6.5 | 0.6 | 2.6 | 1.28 |
| Adam Liberatore* | Phi | mr | 31 | 6 | 7 | 2 | 1 | 1 | 1 | 1 | 2 | 8.7 | 2.7 | 11.5 | 9.9 | 0.9 | 3.7 | 1.27 |
| Zack Littell | Tam | sp | 22 | 1 | 0 | 0 | 4 | 0 | 0 | 0 | 1 | 8.7 | 2.9 | 13.3 | 5.8 | 1.2 | 2.0 | 1.29 |
| Walker Lockett | ChA | sp | 24 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 2 | 10.9 | 2.1 | 13.0 | 6.2 | 3.6 | 3.0 | 1.44 |
| Boone Logan* | LAN | mr | 33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.9 | 9.9 | 19.9 | 11.4 | 0.0 | 1.1 | 2.21 |
| Jorge Lopez | SD | sp | 25 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 2.5 | 0.0 | 4.9 | 0.0 | 0.0 | 0.0 | 0.27 |
| Pablo Lopez | Tex | sp | 22 | 26 | 5 | 1 | 5 | 7 | 0 | 0 | 3 | 11.7 | 2.8 | 14.9 | 6.1 | 1.6 | 2.2 | 1.61 |
| Reynaldo Lopez | Bos | sp | 24 | 8 | 3 | 1 | 5 | 5 | 1 | 1 | 4 | 10.9 | 3.9 | 15.4 | 8.9 | 1.8 | 2.3 | 1.65 |
| Yoan Lopez | Tex | mr | 25 | 6 | 1 | 0 | 1 | 2 | 0 | 0 | 1 | 12.3 | 4.3 | 17.2 | 8.6 | 1.8 | 2.0 | 1.84 |
| Michael Lorenzen | | mr | 26 | 3 | 1 | 0 | 1 | 3 | 0 | 0 | 0 | 10.6 | 2.1 | 13.0 | 5.6 | 0.8 | 2.6 | 1.41 |
| Aaron Loup* | Cin | mr | 30 | 2 | 0 | 1 | 2 | 2 | 0 | 0 | 0 | 9.3 | 3.4 | 13.2 | 11.3 | 0.7 | 3.3 | 1.41 |
| Richard Lovelady* | | mr | 22 | 2 | 2 | 0 | 3 | 11 | 3 | 1 | 2 | 10.8 | 4.8 | 16.1 | 7.7 | 1.5 | 1.6 | 1.73 |
| Joey Lucchesi* | Ari | sp | 25 | 23 | 7 | 1 | 5 | 12 | 0 | 2 | 5 | 8.9 | 3.4 | 12.7 | 7.7 | 1.9 | 2.3 | 1.37 |
| Seth Lugo | NYN | sp | 28 | 0 | 2 | 1 | 0 | 1 | 0 | 0 | 4 | 9.1 | 4.0 | 13.1 | 7.5 | 1.6 | 1.9 | 1.46 |
| Jordan Lyles | Phi | mr | 27 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 5.8 | 2.2 | 8.4 | 7.1 | 0.9 | 3.2 | 0.89 |
| Lance Lynn | | sp | 31 | 2 | 7 | 2 | 3 | 3 | 2 | 0 | 3 | 7.9 | 2.9 | 11.0 | 8.0 | 1.3 | 2.8 | 1.20 |
| Tyler Lyons* | Cin | mr | 30 | 6 | 1 | 2 | 1 | 2 | 0 | 0 | 0 | 6.4 | 3.0 | 9.5 | 11.1 | 1.0 | 3.7 | 1.04 |
| Ryan Madson | | cl | 37 | 8 | 3 | 2 | 3 | 3 | 0 | 0 | 2 | 8.6 | 2.4 | 11.3 | 9.2 | 0.6 | 3.9 | 1.22 |
| Kenta Maeda | Min | sp | 30 | 15 | 8 | 0 | 5 | 1 | 0 | 1 | 4 | 7.8 | 1.7 | 9.7 | 7.9 | 0.9 | 4.7 | 1.06 |
| Tyler Mahle | Tam | sp | 23 | 6 | 10 | 0 | 10 | 8 | 0 | 0 | 2 | 9.1 | 1.8 | 11.4 | 8.8 | 1.7 | 4.9 | 1.21 |
| Kazuhisa Makita | | mr | 33 | 4 | 2 | 1 | 2 | 0 | 1 | 2 | 4 | 8.5 | 1.6 | 10.3 | 4.5 | 0.3 | 2.9 | 1.12 |
| Sean Manaea* | Mil | sp | 26 | 17 | 6 | 1 | 7 | 3 | 0 | 4 | 2 | 7.5 | 2.6 | 10.4 | 8.1 | 1.0 | 3.1 | 1.12 |
| Michael Mariot | ChN | mr | 29 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 14.2 | 5.7 | 19.9 | 9.9 | 1.4 | 1.8 | 2.21 |
| German Marquez | Bos | sp | 23 | 15 | 9 | 0 | 13 | 4 | 1 | 0 | 5 | 9.1 | 2.5 | 12.1 | 7.3 | 1.5 | 3.0 | 1.29 |
| Francis Martes | Tam | mr | 22 | 3 | 2 | 0 | 3 | 2 | 2 | 0 | 1 | 6.8 | 3.4 | 10.8 | 10.4 | 0.5 | 3.1 | 1.13 |
| Cody Martin | SD | sp | 28 | 9 | 8 | 4 | 5 | 4 | 0 | 2 | 4 | 9.8 | 2.5 | 12.7 | 8.5 | 0.6 | 3.4 | 1.36 |
| Kyle Martin | SD | mr | 27 | 10 | 1 | 1 | 3 | 14 | 0 | 2 | 2 | 9.0 | 4.6 | 13.9 | 8.0 | 2.0 | 1.7 | 1.51 |
| Carlos Martinez | Sea | sp | 26 | 7 | 3 | 2 | 3 | 4 | 1 | 1 | 2 | 9.3 | 2.7 | 12.3 | 9.2 | 1.0 | 3.4 | 1.33 |
| Phil Maton | ChN | mr | 25 | 1 | 2 | 1 | 1 | 2 | 1 | 0 | 1 | 9.4 | 2.7 | 12.3 | 8.6 | 1.7 | 3.2 | 1.35 |
| Steven Matz* | | sp | 27 | 16 | 7 | 0 | 9 | 0 | 0 | 2 | 6 | 7.8 | 2.7 | 11.0 | 7.4 | 1.0 | 2.7 | 1.17 |
| Brandon Maurer | Tam | cl | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.00 |
| Trevor May | Sea | mr | 28 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 8.2 | 2.3 | 11.0 | 9.2 | 1.8 | 4.0 | 1.17 |
| Mike Mayers | StL | sp | 26 | 2 | 0 | 2 | 2 | 3 | 0 | 0 | 2 | 10.2 | 5.4 | 16.1 | 6.3 | 1.3 | 1.2 | 1.74 |
| Cory Mazzoni | NYN | mr | 28 | 13 | 1 | 0 | 2 | 5 | 0 | 1 | 1 | 10.8 | 3.0 | 14.2 | 8.2 | 1.0 | 2.7 | 1.54 |
| Zach McAllister | Sea | mr | 30 | 6 | 3 | 0 | 3 | 5 | 0 | 0 | 2 | 8.0 | 3.4 | 11.6 | 9.6 | 0.6 | 2.8 | 1.26 |
| Brandon McCarthy | SF | sp | 34 | 7 | 2 | 1 | 3 | 1 | 0 | 2 | 1 | 8.9 | 2.2 | 11.6 | 5.5 | 1.7 | 2.5 | 1.23 |
| Lance McCullers | | sp | 24 | 7 | 11 | 0 | 4 | 12 | 0 | 3 | 0 | 7.5 | 2.6 | 10.4 | 10.8 | 1.0 | 4.1 | 1.13 |
| T.J. McFarland* | Bos | mr | 29 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 11.0 | 2.3 | 13.3 | 5.9 | 1.8 | 2.6 | 1.47 |
| Jake McGee* | Tor | mr | 31 | 4 | 1 | 0 | 2 | 1 | 0 | 0 | 2 | 8.5 | 2.4 | 11.1 | 9.3 | 0.5 | 3.9 | 1.21 |
| Kyle McGrath* | | mr | 25 | 1 | 3 | 0 | 3 | 1 | 0 | 0 | 1 | 7.2 | 1.8 | 9.5 | 9.4 | 0.8 | 5.2 | 1.01 |
| Collin McHugh | Cin | sp | 31 | 21 | 8 | 1 | 9 | 5 | 1 | 6 | 7 | 8.6 | 2.7 | 11.7 | 8.7 | 1.1 | 3.2 | 1.26 |
| Ryan Meisinger | Cin | mr | 24 | 2 | 1 | 2 | 0 | 3 | 0 | 0 | 3 | 10.1 | 9.0 | 19.1 | 10.1 | 1.1 | 1.1 | 2.13 |
| Adalberto Mejia* | Min | sp | 25 | 4 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 7.7 | 3.5 | 11.2 | 6.2 | 1.2 | 1.8 | 1.24 |
| Mark Melancon | Was | cl | 33 | 3 | 1 | 3 | 2 | 2 | 0 | 1 | 0 | 7.7 | 1.5 | 9.6 | 9.0 | 0.2 | 6.1 | 1.02 |
| Keury Mella | Sea | sp | 24 | 5 | 5 | 0 | 2 | 6 | 0 | 1 | 7 | 9.7 | 3.4 | 13.4 | 5.7 | 1.7 | 1.7 | 1.46 |
| Yohander Mendez* | KC | sp | 23 | 5 | 3 | 2 | 2 | 2 | 1 | 0 | 4 | 8.4 | 2.7 | 11.3 | 7.0 | 1.9 | 2.6 | 1.23 |
| Daniel Mengden | Col | sp | 25 | 5 | 3 | 1 | 3 | 7 | 0 | 2 | 3 | 8.5 | 3.3 | 12.2 | 9.0 | 0.5 | 2.8 | 1.31 |
| Keynan Middleton | Bal | mr | 24 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 13.2 | 4.6 | 17.8 | 11.2 | 1.3 | 2.4 | 1.98 |
| Miles Mikolas | Bos | sp | 29 | 12 | 7 | 0 | 11 | 0 | 0 | 0 | 2 | 7.8 | 2.4 | 10.7 | 6.5 | 1.2 | 2.7 | 1.13 |
| Wade Miley* | SD | sp | 31 | 2 | 2 | 0 | 0 | 0 | 0 | 2 | 0 | 8.3 | 5.2 | 13.5 | 5.2 | 1.0 | 1.0 | 1.50 |
| Andrew Miller* | Det | mr | 33 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 5.9 | 1.5 | 7.9 | 13.5 | 0.6 | 9.2 | 0.82 |
| Jared Miller* | Phi | mr | 24 | 1 | 1 | 1 | 1 | 5 | 0 | 0 | 0 | 8.4 | 4.8 | 13.4 | 11.5 | 1.3 | 2.4 | 1.47 |
| Justin Miller | KC | mr | 31 | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 6.6 | 3.6 | 10.2 | 8.4 | 0.6 | 2.3 | 1.13 |
| Shelby Miller | Atl | sp | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5.1 | 2.6 | 7.7 | 1.3 | 0.0 | 0.5 | 0.86 |
| Alec Mills | | sp | 26 | 16 | 9 | 1 | 8 | 7 | 0 | 0 | 2 | 9.6 | 2.1 | 12.3 | 5.3 | 0.6 | 2.5 | 1.31 |
| Mike Minor* | ChN | mr | 30 | 15 | 6 | 2 | 2 | 8 | 1 | 5 | 2 | 7.6 | 3.1 | 10.8 | 10.0 | 1.0 | 3.3 | 1.19 |
| A.J. Minter* | Was | mr | 24 | 2 | 4 | 1 | 2 | 4 | 0 | 0 | 0 | 7.7 | 6.0 | 14.0 | 14.0 | 1.4 | 2.3 | 1.53 |
| Ariel Miranda* | StL | sp | 29 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 2 | 7.1 | 4.6 | 12.0 | 7.4 | 1.0 | 1.6 | 1.30 |
| Bryan Mitchell | Pit | mr | 27 | 1 | 0 | 1 | 1 | 4 | 0 | 0 | 0 | 10.3 | 2.4 | 12.9 | 7.7 | 1.1 | 3.3 | 1.40 |
| Marcos Molina | NYA | sp | 23 | 6 | 2 | 0 | 2 | 3 | 0 | 1 | 2 | 10.9 | 2.3 | 13.4 | 7.7 | 1.4 | 3.4 | 1.46 |
| Frankie Montas | ChN | mr | 25 | 14 | 3 | 3 | 7 | 2 | 0 | 5 | 5 | 8.0 | 4.3 | 12.8 | 10.4 | 1.1 | 2.4 | 1.37 |
| Jordan Montgomery* | ChA | sp | 25 | 3 | 1 | 0 | 0 | 4 | 0 | 0 | 0 | 7.6 | 2.4 | 9.9 | 12.1 | 1.7 | 5.1 | 1.11 |
| Mike Montgomery* | Sea | mr | 28 | 8 | 7 | 0 | 7 | 14 | 1 | 3 | 6 | 7.2 | 3.1 | 10.6 | 8.0 | 0.7 | 2.6 | 1.14 |
| Andrew Moore | Mil | sp | 24 | 4 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 12.9 | 0.9 | 13.7 | 5.1 | 2.1 | 6.0 | 1.52 |
| Matt Moore* | Tam | sp | 29 | 5 | 6 | 0 | 8 | 6 | 0 | 0 | 3 | 7.5 | 3.9 | 11.9 | 8.6 | 1.3 | 2.2 | 1.26 |
| Reyes Moronta | NYA | mr | 25 | 3 | 1 | 0 | 3 | 4 | 0 | 1 | 0 | 7.3 | 4.1 | 12.2 | 14.1 | 1.7 | 3.4 | 1.27 |
| Akeel Morris | StL | mr | 25 | 1 | 2 | 0 | 2 | 4 | 0 | 0 | 2 | 6.7 | 5.5 | 12.5 | 10.2 | 0.8 | 1.9 | 1.36 |
| Brandon Morrow | Atl | mr | 33 | 1 | 3 | 3 | 3 | 4 | 0 | 1 | 2 | 8.6 | 2.4 | 11.3 | 8.8 | 0.5 | 3.6 | 1.22 |
| Charlie Morton | | sp | 34 | 19 | 5 | 2 | 20 | 3 | 0 | 3 | 0 | 7.8 | 2.9 | 11.8 | 8.5 | 1.1 | 2.9 | 1.20 |
| Gabriel Moya* | KC | mr | 23 | 4 | 2 | 1 | 2 | 6 | 1 | 1 | 2 | 8.0 | 2.9 | 11.2 | 11.0 | 1.2 | 3.7 | 1.22 |
| Peter Moylan | NYN | mr | 39 | 1 | 1 | 3 | 1 | 1 | 0 | 0 | 0 | 9.6 | 4.2 | 14.1 | 5.4 | 0.4 | 1.3 | 1.52 |
| Jose Mujica | Atl | sp | 22 | 12 | 4 | 1 | 11 | 11 | 0 | 2 | 12 | 9.9 | 3.0 | 13.4 | 5.1 | 1.5 | 1.7 | 1.44 |
| Joe Musgrove | ChA | sp | 25 | 10 | 3 | 0 | 3 | 6 | 0 | 0 | 5 | 8.1 | 1.3 | 9.7 | 8.5 | 1.7 | 6.3 | 1.05 |
| Nick Neidert | Hou | sp | 21 | 27 | 11 | 0 | 8 | 6 | 0 | 0 | 6 | 9.5 | 1.6 | 11.5 | 5.6 | 1.4 | 3.6 | 1.23 |
| Jimmy Nelson | SD | sp | 29 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 7.2 | 7.2 | 14.4 | 5.4 | 0.0 | 0.8 | 1.60 |
| Hector Neris | Phi | cl | 29 | 2 | 2 | 1 | 1 | 2 | 0 | 1 | 2 | 8.3 | 2.9 | 11.5 | 12.1 | 1.1 | 4.2 | 1.24 |
| Pat Neshek | Phi | mr | 37 | 2 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 5.2 | 1.0 | 6.6 | 10.0 | 0.3 | 9.7 | 0.69 |
| Dovydas Neverauskas | Oak | mr | 25 | 1 | 1 | 0 | 0 | 2 | 0 | 1 | 0 | 12.5 | 6.2 | 18.7 | 4.2 | 0.0 | 0.7 | 2.08 |
| Sean Newcomb* | Oak | sp | 25 | 5 | 6 | 1 | 7 | 8 | 0 | 0 | 3 | 7.3 | 5.1 | 12.9 | 9.3 | 0.6 | 1.8 | 1.38 |
| Juan Nicasio | NYA | mr | 31 | 4 | 5 | 0 | 2 | 2 | 1 | 0 | 0 | 7.0 | 2.4 | 9.7 | 9.2 | 1.2 | 3.8 | 1.05 |
| Aaron Nola | Phi | sp | 25 | 31 | 8 | 1 | 6 | 0 | 3 | 3 | 3 | 8.6 | 1.5 | 10.4 | 8.9 | 1.1 | 5.9 | 1.13 |
| Bud Norris | NYN | cl | 33 | 23 | 4 | 4 | 14 | 5 | 1 | 4 | 5 | 8.1 | 3.3 | 12.2 | 8.9 | 1.5 | 2.7 | 1.27 |
| Ivan Nova | Mil | sp | 31 | 15 | 4 | 3 | 6 | 8 | 0 | 3 | 4 | 7.7 | 1.8 | 9.9 | 6.6 | 1.0 | 3.6 | 1.06 |
| Darren O'Day | NYA | mr | 35 | 2 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 5.6 | 0.7 | 6.9 | 9.9 | 0.7 | 15.0 | 0.70 |
| Trevor Oaks | Bal | sp | 25 | 6 | 6 | 0 | 6 | 2 | 0 | 2 | 2 | 9.6 | 2.4 | 12.6 | 5.0 | 1.3 | 2.1 | 1.33 |
| Scott Oberg | ChA | mr | 28 | 5 | 1 | 0 | 1 | 0 | 0 | 0 | 4 | 7.9 | 2.8 | 10.8 | 7.0 | 1.2 | 2.5 | 1.19 |
| Jake Odorizzi | SD | sp | 28 | 8 | 5 | 0 | 3 | 3 | 0 | 2 | 7 | 8.2 | 2.9 | 11.3 | 7.1 | 0.9 | 2.5 | 1.24 |
| Seung-hwan Oh | Pit | cl | 35 | 0 | 1 | 0 | 5 | 3 | 0 | 0 | 0 | 6.9 | 1.9 | 9.5 | 8.4 | 0.6 | 4.3 | 0.98 |
| Shohei Ohtani | Tex | sp | 23 | 5 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 9.5 | 4.0 | 13.5 | 9.5 | 1.5 | 2.4 | 1.50 |
| Tyler Olson* | Mia | mr | 28 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 8.1 | 2.4 | 10.5 | 10.5 | 0.7 | 4.4 | 1.16 |
| Roberto Osuna | Mia | cl | 23 | 3 | 2 | 0 | 2 | 3 | 0 | 0 | 1 | 4.6 | 1.4 | 6.4 | 10.5 | 0.4 | 7.6 | 0.66 |
| Corey Oswalt | | sp | 24 | 6 | 0 | 0 | 6 | 9 | 0 | 3 | 5 | 9.1 | 2.2 | 11.8 | 8.2 | 1.1 | 3.7 | 1.26 |
| Dan Otero | | mr | 33 | 6 | 3 | 0 | 1 | 0 | 0 | 1 | 4 | 9.8 | 1.1 | 10.9 | 5.7 | 1.0 | 5.2 | 1.21 |
| Adam Ottavino | Pit | mr | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 7.2 | 3.6 | 10.8 | 5.4 | 1.8 | 1.5 | 1.20 |
| Henry Owens* | Atl | sp | 25 | 40 | 8 | 5 | 5 | 15 | 0 | 6 | 6 | 8.3 | 7.4 | 15.9 | 9.3 | 1.7 | 1.3 | 1.74 |
| Emilio Pagan | NYN | mr | 27 | 11 | 4 | 2 | 8 | 2 | 1 | 2 | 3 | 10.3 | 3.7 | 14.6 | 9.1 | 1.8 | 2.5 | 1.56 |
| Blake Parker | LAA | mr | 33 | 5 | 2 | 0 | 1 | 3 | 1 | 0 | 1 | 5.2 | 2.6 | 8.0 | 12.6 | 0.2 | 4.8 | 0.87 |
| David Paulino | | sp | 24 | 1 | 3 | 0 | 1 | 3 | 0 | 0 | 1 | 7.3 | 3.5 | 11.0 | 8.4 | 0.6 | 2.4 | 1.19 |
| James Paxton* | Sea | sp | 29 | 17 | 10 | 0 | 2 | 16 | 0 | 1 | 1 | 7.3 | 2.5 | 9.9 | 10.3 | 0.6 | 4.2 | 1.08 |
| James Pazos* | | mr | 27 | 8 | 5 | 1 | 5 | 6 | 0 | 0 | 2 | 8.0 | 3.8 | 12.3 | 11.6 | 0.6 | 3.1 | 1.31 |
| Brad Peacock | | sp | 30 | 3 | 5 | 1 | 1 | 7 | 0 | 3 | 1 | 7.1 | 4.0 | 11.1 | 10.0 | 1.3 | 2.5 | 1.23 |
| Freddy Peralta | Oak | sp | 22 | 5 | 1 | 1 | 3 | 7 | 0 | 0 | 1 | 10.2 | 4.2 | 15.1 | 11.6 | 1.9 | 2.8 | 1.60 |
| Luis Perdomo | LAA | sp | 25 | 12 | 2 | 1 | 3 | 7 | 0 | 1 | 4 | 9.8 | 2.3 | 12.4 | 6.3 | 1.1 | 2.8 | 1.34 |
| Cionel Perez* | NYN | sp | 22 | 18 | 7 | 0 | 10 | 17 | 0 | 1 | 6 | 9.8 | 3.2 | 13.8 | 5.9 | 1.0 | 1.8 | 1.45 |
| Martin Perez* | LAN | sp | 27 | 6 | 4 | 1 | 3 | 2 | 0 | 3 | 1 | 7.5 | 3.3 | 11.0 | 6.5 | 0.7 | 2.0 | 1.19 |
| Oliver Perez* | Min | mr | 36 | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 9.8 | 4.1 | 14.3 | 12.8 | 1.5 | 3.1 | 1.54 |
| Dillon Peters* | Cle | sp | 25 | 9 | 3 | 0 | 1 | 4 | 0 | 0 | 1 | 9.2 | 3.1 | 12.4 | 6.4 | 1.2 | 2.1 | 1.37 |
| Yusmeiro Petit | Was | mr | 33 | 4 | 4 | 0 | 0 | 0 | 0 | 1 | 2 | 7.6 | 3.2 | 10.8 | 10.9 | 1.4 | 3.4 | 1.20 |
| Jake Petricka | ChN | mr | 30 | 7 | 2 | 1 | 5 | 6 | 0 | 2 | 1 | 10.1 | 2.6 | 13.2 | 6.0 | 0.3 | 2.3 | 1.40 |
| Nick Pivetta | | sp | 25 | 7 | 6 | 3 | 4 | 6 | 0 | 2 | 5 | 8.0 | 2.9 | 11.1 | 8.5 | 1.2 | 2.9 | 1.21 |
| Adam Plutko | Tex | sp | 26 | 7 | 1 | 0 | 2 | 3 | 0 | 0 | 2 | 9.8 | 2.4 | 12.4 | 7.9 | 1.2 | 3.3 | 1.35 |
| Drew Pomeranz* | SD | sp | 29 | 8 | 5 | 0 | 0 | 1 | 0 | 1 | 1 | 8.3 | 2.8 | 11.1 | 10.3 | 1.3 | 3.6 | 1.23 |
| Daniel Poncedeleon | StL | sp | 26 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.5 | 8.3 | 15.8 | 10.5 | 3.0 | 1.3 | 1.75 |
| Rick Porcello | Bal | sp | 29 | 23 | 11 | 0 | 5 | 7 | 2 | 0 | 4 | 9.2 | 1.7 | 11.1 | 7.9 | 1.8 | 4.7 | 1.20 |
| Bobby Poyner* | LAN | mr | 25 | 7 | 3 | 2 | 3 | 2 | 0 | 1 | 2 | 8.4 | 3.3 | 11.9 | 10.1 | 1.5 | 3.1 | 1.29 |
| Ryan Pressly | Min | mr | 29 | 3 | 5 | 2 | 3 | 8 | 1 | 0 | 3 | 7.9 | 3.1 | 11.4 | 9.2 | 1.0 | 2.9 | 1.23 |
| David Price* | Tor | sp | 32 | 7 | 8 | 0 | 5 | 3 | 0 | 1 | 7 | 8.2 | 1.8 | 10.2 | 9.6 | 1.1 | 5.2 | 1.11 |
| Jose Quintana* | | sp | 29 | 5 | 4 | 0 | 5 | 8 | 0 | 0 | 8 | 7.5 | 2.4 | 10.0 | 9.1 | 0.7 | 3.9 | 1.09 |
| Tanner Rainey | Atl | mr | 25 | 5 | 3 | 1 | 2 | 33 | 0 | 0 | 6 | 7.5 | 6.8 | 14.5 | 9.7 | 1.4 | 1.4 | 1.59 |
| Erasmo Ramirez | ChA | mr | 28 | 4 | 0 | 0 | 2 | 3 | 0 | 0 | 2 | 7.2 | 1.6 | 9.2 | 7.8 | 0.9 | 4.8 | 0.99 |
| A.J. Ramos | Min | cl | 31 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 4.2 | 3.1 | 7.3 | 12.7 | 0.8 | 4.1 | 0.81 |
| Edubray Ramos | Tor | mr | 25 | 7 | 4 | 1 | 0 | 3 | 0 | 0 | 2 | 9.8 | 3.2 | 13.0 | 10.6 | 1.8 | 3.4 | 1.44 |
| Robbie Ray* | Oak | sp | 26 | 13 | 3 | 1 | 3 | 0 | 2 | 0 | 3 | 6.9 | 2.8 | 10.0 | 13.4 | 1.3 | 4.7 | 1.09 |
| Addison Reed | Cin | cl | 29 | 1 | 2 | 0 | 1 | 2 | 0 | 3 | 0 | 9.0 | 0.9 | 10.1 | 8.6 | 0.6 | 9.7 | 1.10 |
| Cody Reed* | Col | sp | 25 | 15 | 2 | 2 | 9 | 9 | 1 | 2 | 2 | 8.0 | 5.6 | 14.3 | 6.5 | 0.9 | 1.2 | 1.50 |
| Clayton Richard* | LAA | sp | 34 | 8 | 7 | 1 | 7 | 2 | 0 | 1 | 4 | 7.7 | 2.1 | 10.3 | 6.7 | 0.9 | 3.2 | 1.09 |
| Garrett Richards | Bal | sp | 30 | 6 | 5 | 0 | 2 | 3 | 0 | 0 | 1 | 8.5 | 3.8 | 12.5 | 8.6 | 1.1 | 2.3 | 1.37 |
| Trevor Richards | | sp | 25 | 31 | 11 | 1 | 10 | 14 | 0 | 1 | 5 | 9.2 | 3.6 | 13.3 | 7.9 | 1.8 | 2.2 | 1.41 |
| Felipe Rivero* | | cl | 26 | 2 | 3 | 0 | 4 | 5 | 0 | 0 | 0 | 6.3 | 2.7 | 9.6 | 11.6 | 0.4 | 4.2 | 1.01 |
| Tanner Roark | Min | sp | 31 | 17 | 7 | 3 | 5 | 2 | 0 | 1 | 8 | 9.7 | 2.8 | 12.7 | 7.0 | 1.5 | 2.5 | 1.39 |
| David Robertson | Mil | cl | 33 | 5 | 1 | 1 | 1 | 4 | 0 | 1 | 1 | 8.3 | 2.9 | 11.3 | 14.3 | 1.2 | 5.0 | 1.24 |
| Carlos Rodon* | Col | sp | 25 | 21 | 5 | 2 | 4 | 1 | 1 | 3 | 6 | 9.3 | 5.1 | 14.7 | 9.7 | 0.9 | 1.9 | 1.60 |
| Dereck Rodriguez | NYA | sp | 26 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11.4 | 2.8 | 14.2 | 2.8 | 1.4 | 1.0 | 1.58 |
| Eduardo Rodriguez* | Col | sp | 25 | 9 | 4 | 0 | 6 | 1 | 0 | 5 | 6 | 8.7 | 3.9 | 13.2 | 10.1 | 0.6 | 2.6 | 1.40 |
| Richard Rodriguez | Mia | mr | 28 | 0 | 1 | 1 | 2 | 2 | 0 | 0 | 0 | 9.6 | 2.8 | 13.5 | 5.1 | 3.9 | 1.8 | 1.38 |
| Chaz Roe | | mr | 31 | 4 | 0 | 0 | 3 | 2 | 0 | 0 | 1 | 8.8 | 2.7 | 12.1 | 11.3 | 0.8 | 4.2 | 1.28 |
| Josh Rogers* | | sp | 23 | 16 | 3 | 1 | 11 | 1 | 0 | 1 | 3 | 8.3 | 1.7 | 10.8 | 6.4 | 1.8 | 3.8 | 1.11 |
| Taylor Rogers* | Cle | mr | 27 | 6 | 4 | 3 | 4 | 0 | 0 | 1 | 1 | 8.6 | 3.2 | 12.2 | 7.4 | 0.7 | 2.3 | 1.31 |
| Sal Romano | Col | sp | 24 | 8 | 3 | 2 | 2 | 6 | 0 | 3 | 4 | 10.3 | 3.2 | 13.7 | 8.3 | 1.2 | 2.6 | 1.50 |
| Fernando Romero | NYN | sp | 23 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 10.0 | 4.1 | 15.3 | 7.0 | 1.2 | 1.7 | 1.57 |
| Sergio Romo | Bal | mr | 35 | 8 | 3 | 2 | 1 | 4 | 0 | 0 | 2 | 8.5 | 2.1 | 10.7 | 8.7 | 2.2 | 4.2 | 1.18 |
| Hector Rondon | | mr | 30 | 13 | 1 | 1 | 3 | 2 | 0 | 0 | 1 | 7.3 | 2.8 | 10.5 | 10.5 | 0.8 | 3.7 | 1.12 |
| Trevor Rosenthal | SD | cl | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.9 | 3.9 | 7.7 | 11.6 | 0.0 | 3.0 | 0.86 |
| Joe Ross | Mia | sp | 25 | 2 | 1 | 0 | 1 | 1 | 0 | 2 | 0 | 8.6 | 1.8 | 10.7 | 7.1 | 0.9 | 3.8 | 1.16 |
| Robbie Ross Jr.* | SD | mr | 29 | 4 | 2 | 1 | 8 | 2 | 0 | 1 | 2 | 7.3 | 3.3 | 11.7 | 8.4 | 1.1 | 2.5 | 1.18 |
| Ben Rowen | ChN | mr | 29 | 1 | 1 | 0 | 2 | 0 | 0 | 1 | 0 | 7.7 | 2.6 | 10.8 | 6.4 | 0.8 | 2.5 | 1.14 |
| Nick Rumbelow | | mr | 26 | 6 | 3 | 1 | 4 | 16 | 0 | 0 | 1 | 8.4 | 3.3 | 12.0 | 10.2 | 1.2 | 3.1 | 1.30 |
| Chris Rusin* | KC | mr | 31 | 3 | 2 | 0 | 1 | 2 | 0 | 0 | 3 | 6.8 | 2.2 | 9.1 | 7.6 | 1.4 | 3.5 | 1.00 |
| Hyun-jin Ryu* | LAN | sp | 31 | 9 | 1 | 1 | 1 | 2 | 1 | 2 | 3 | 8.1 | 2.2 | 10.4 | 6.8 | 0.6 | 3.0 | 1.15 |
| Marc Rzepczynski* | Pit | mr | 32 | 1 | 0 | 1 | 0 | 4 | 0 | 0 | 1 | 6.9 | 6.3 | 13.2 | 9.1 | 0.3 | 1.5 | 1.47 |
| CC Sabathia* | Phi | sp | 37 | 2 | 0 | 3 | 1 | 1 | 0 | 2 | 0 | 7.1 | 5.5 | 12.8 | 9.5 | 1.6 | 1.8 | 1.39 |
| Chris Sale* | Det | sp | 29 | 4 | 4 | 0 | 7 | 1 | 0 | 1 | 5 | 4.8 | 1.3 | 6.4 | 10.3 | 0.5 | 8.1 | 0.67 |
| Jeff Samardzija | Det | sp | 33 | 7 | 3 | 1 | 5 | 1 | 0 | 0 | 1 | 11.0 | 1.9 | 13.7 | 9.4 | 1.4 | 5.0 | 1.43 |
| Aaron Sanchez | | sp | 25 | 12 | 8 | 2 | 3 | 3 | 0 | 4 | 3 | 8.6 | 4.4 | 13.2 | 6.9 | 0.4 | 1.6 | 1.44 |
| Dennis Santana | Ari | sp | 22 | 5 | 2 | 0 | 3 | 4 | 1 | 2 | 3 | 7.0 | 3.8 | 11.4 | 8.7 | 1.1 | 2.3 | 1.20 |
| Edgar Santana | ChA | mr | 26 | 3 | 3 | 0 | 1 | 3 | 0 | 0 | 0 | 9.2 | 4.0 | 13.4 | 7.0 | 1.6 | 1.8 | 1.46 |
| Ervin Santana | Min | sp | 35 | 6 | 2 | 0 | 0 | 3 | 0 | 0 | 0 | 10.4 | 1.9 | 12.3 | 7.6 | 0.5 | 4.0 | 1.37 |
| Max Scherzer | Phi | sp | 33 | 13 | 6 | 1 | 5 | 6 | 0 | 1 | 1 | 6.6 | 2.5 | 9.3 | 11.8 | 1.0 | 4.8 | 1.00 |
| Tanner Scott* | NYN | sp | 23 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 6.8 | 4.5 | 11.3 | 11.3 | 2.3 | 2.5 | 1.25 |
| Antonio Senzatela | NYA | sp | 23 | 5 | 7 | 0 | 4 | 3 | 0 | 0 | 4 | 6.8 | 1.9 | 8.9 | 6.9 | 0.8 | 3.7 | 0.97 |
| Luis Severino | Tex | sp | 24 | 19 | 5 | 0 | 3 | 7 | 0 | 1 | 2 | 8.0 | 2.0 | 10.2 | 10.5 | 0.7 | 5.2 | 1.12 |
| Paul Sewald | | mr | 28 | 3 | 1 | 1 | 2 | 2 | 1 | 0 | 1 | 8.8 | 2.2 | 11.3 | 10.4 | 0.9 | 4.7 | 1.23 |
| Bryan Shaw | Was | mr | 30 | 3 | 2 | 0 | 1 | 5 | 0 | 1 | 2 | 7.5 | 2.2 | 9.9 | 8.9 | 0.4 | 4.0 | 1.08 |
| Justus Sheffield* | Ari | sp | 22 | 10 | 11 | 3 | 8 | 19 | 2 | 2 | 5 | 8.2 | 4.5 | 13.2 | 8.5 | 1.4 | 1.9 | 1.41 |
| Chandler Shepherd | Atl | mr | 25 | 2 | 3 | 6 | 2 | 4 | 0 | 1 | 3 | 8.2 | 3.5 | 11.8 | 8.7 | 2.0 | 2.5 | 1.29 |
| Jimmie Sherfy | Col | mr | 26 | 17 | 3 | 4 | 2 | 3 | 2 | 1 | 2 | 9.7 | 4.5 | 14.4 | 11.7 | 2.1 | 2.6 | 1.58 |
| Chasen Shreve* | Tam | mr | 27 | 1 | 4 | 1 | 2 | 3 | 0 | 0 | 2 | 6.8 | 3.7 | 10.8 | 12.3 | 1.5 | 3.3 | 1.18 |
| Lucas Sims | Hou | sp | 24 | 21 | 11 | 0 | 1 | 6 | 2 | 0 | 2 | 7.5 | 3.9 | 11.5 | 10.9 | 1.1 | 2.8 | 1.27 |
| Tyler Skaggs* | StL | sp | 26 | 19 | 3 | 1 | 15 | 5 | 0 | 3 | 1 | 6.9 | 2.6 | 10.6 | 6.3 | 0.7 | 2.4 | 1.06 |
| Carson Smith | Sea | mr | 28 | 1 | 1 | 0 | 1 | 2 | 1 | 1 | 0 | 8.8 | 2.9 | 12.0 | 9.1 | 0.7 | 3.1 | 1.30 |
| Joe Smith | Mil | mr | 34 | 7 | 2 | 1 | 7 | 0 | 1 | 0 | 3 | 10.3 | 2.0 | 13.2 | 6.9 | 1.4 | 3.4 | 1.37 |
| Will Smith* | | mr | 28 | 0 | 3 | 0 | 1 | 1 | 0 | 0 | 2 | 7.6 | 2.9 | 10.6 | 11.0 | 0.6 | 3.9 | 1.16 |
| Josh Smoker* | LAA | mr | 29 | 2 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 7.2 | 1.7 | 9.2 | 11.3 | 0.7 | 6.6 | 0.99 |
| Blake Snell* | Tor | sp | 25 | 11 | 9 | 0 | 5 | 13 | 1 | 2 | 5 | 7.3 | 3.7 | 11.3 | 10.6 | 0.9 | 2.8 | 1.22 |
| D.J. Snelten* | | mr | 26 | 6 | 1 | 1 | 2 | 2 | 0 | 0 | 1 | 6.1 | 2.4 | 8.9 | 7.4 | 1.1 | 3.1 | 0.95 |
| Sammy Solis* | Bal | mr | 29 | 4 | 2 | 0 | 1 | 8 | 1 | 0 | 3 | 8.8 | 4.9 | 13.9 | 8.7 | 2.2 | 1.8 | 1.53 |
| Joakim Soria | Pit | mr | 34 | 2 | 4 | 0 | 2 | 4 | 0 | 1 | 0 | 8.5 | 1.6 | 10.4 | 10.7 | 1.0 | 6.7 | 1.12 |
| Mike Soroka | Ari | sp | 20 | 5 | 0 | 0 | 3 | 6 | 0 | 1 | 1 | 9.4 | 3.4 | 13.3 | 7.7 | 1.4 | 2.3 | 1.42 |
| Craig Stammen | Mil | mr | 34 | 4 | 1 | 1 | 1 | 3 | 1 | 0 | 0 | 8.6 | 3.4 | 12.1 | 8.9 | 1.4 | 2.6 | 1.33 |
| Ryne Stanek | Oak | mr | 26 | 5 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 9.0 | 6.0 | 15.0 | 7.0 | 1.7 | 1.2 | 1.67 |
| Josh Staumont | | sp | 24 | 10 | 2 | 3 | 2 | 15 | 0 | 4 | 5 | 9.1 | 7.8 | 17.2 | 9.8 | 0.8 | 1.3 | 1.88 |
| Drew Steckenrider | NYA | mr | 27 | 3 | 5 | 0 | 4 | 7 | 0 | 0 | 3 | 8.0 | 3.7 | 12.0 | 11.5 | 1.2 | 3.1 | 1.29 |
| Jackson Stephens | Tam | sp | 24 | 3 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 7.6 | 1.5 | 9.6 | 8.3 | 1.3 | 5.5 | 1.01 |
| Jordan Stephens | ChA | sp | 25 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 10.1 | 16.9 | 27.0 | 10.1 | 0.0 | 0.6 | 3.00 |
| Dan Straily | Mil | sp | 29 | 6 | 3 | 0 | 2 | 1 | 0 | 4 | 2 | 8.5 | 3.5 | 12.1 | 7.9 | 2.0 | 2.3 | 1.33 |
| Stephen Strasburg | NYA | sp | 29 | 7 | 4 | 0 | 2 | 2 | 1 | 0 | 2 | 7.4 | 1.4 | 8.8 | 11.1 | 1.2 | 8.1 | 0.97 |
| Chris Stratton | Tor | sp | 27 | 6 | 6 | 0 | 9 | 5 | 0 | 0 | 2 | 9.3 | 3.7 | 13.8 | 7.6 | 0.8 | 2.1 | 1.44 |
| Hunter Strickland | Ari | mr | 29 | 5 | 5 | 0 | 1 | 5 | 0 | 0 | 2 | 7.7 | 3.5 | 11.4 | 8.4 | 1.4 | 2.4 | 1.25 |
| Ross Stripling | Mia | mr | 28 | 5 | 2 | 1 | 6 | 4 | 0 | 4 | 4 | 7.4 | 2.3 | 10.1 | 8.0 | 1.1 | 3.5 | 1.07 |
| Marcus Stroman | SD | sp | 27 | 3 | 6 | 0 | 3 | 4 | 0 | 6 | 5 | 8.2 | 2.5 | 10.9 | 7.2 | 0.5 | 2.9 | 1.19 |
| Pedro Strop | Tor | mr | 33 | 2 | 1 | 0 | 1 | 6 | 0 | 0 | 2 | 8.1 | 3.2 | 11.4 | 11.3 | 1.7 | 3.6 | 1.26 |
| Andrew Suarez* | SF | sp | 25 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 8.2 | 8.2 | 17.6 | 8.2 | 1.2 | 1.0 | 1.83 |
| Ranger Suarez* | Cle | sp | 22 | 7 | 4 | 0 | 3 | 6 | 1 | 2 | 0 | 8.6 | 4.3 | 13.3 | 7.4 | 1.2 | 1.7 | 1.43 |
| Wander Suero | | mr | 26 | 5 | 3 | 1 | 3 | 3 | 0 | 0 | 3 | 9.7 | 2.9 | 13.0 | 7.3 | 1.9 | 2.5 | 1.41 |
| Brent Suter* | LAN | sp | 28 | 3 | 4 | 1 | 2 | 0 | 0 | 1 | 0 | 10.8 | 2.7 | 13.8 | 8.3 | 1.1 | 3.0 | 1.50 |
| Anthony Swarzak | | mr | 32 | 4 | 1 | 1 | 2 | 1 | 0 | 0 | 1 | 9.6 | 2.7 | 12.8 | 12.3 | 0.7 | 4.5 | 1.36 |
| Noah Syndergaard | Det | sp | 25 | 14 | 10 | 0 | 5 | 3 | 1 | 1 | 2 | 7.2 | 1.4 | 8.8 | 10.1 | 0.8 | 7.4 | 0.95 |
| Jameson Taillon | Col | sp | 26 | 25 | 8 | 4 | 7 | 8 | 0 | 3 | 4 | 9.5 | 2.4 | 12.2 | 8.2 | 0.8 | 3.4 | 1.32 |
| Masahiro Tanaka | LAN | sp | 29 | 4 | 5 | 3 | 5 | 6 | 1 | 2 | 1 | 7.0 | 1.7 | 8.9 | 8.8 | 1.0 | 5.4 | 0.96 |
| Dillon Tate | Ari | sp | 24 | 6 | 2 | 0 | 0 | 6 | 0 | 1 | 1 | 13.6 | 4.8 | 18.4 | 5.5 | 2.2 | 1.1 | 2.05 |
| Julio Teheran | SD | sp | 27 | 31 | 7 | 5 | 10 | 1 | 2 | 4 | 2 | 8.8 | 2.1 | 11.3 | 7.6 | 1.4 | 3.6 | 1.21 |
| Ryan Tepera | Mil | mr | 30 | 5 | 0 | 0 | 2 | 2 | 0 | 1 | 0 | 8.8 | 2.3 | 11.7 | 8.0 | 1.3 | 3.4 | 1.24 |
| Jake Thompson | NYN | sp | 24 | 4 | 3 | 4 | 1 | 1 | 0 | 0 | 1 | 8.3 | 3.2 | 11.8 | 7.5 | 1.2 | 2.3 | 1.29 |
| Tyler Thornburg | Bal | mr | 29 | 1 | 1 | 0 | 2 | 3 | 0 | 0 | 1 | 4.5 | 3.4 | 8.4 | 10.7 | 0.9 | 3.1 | 0.88 |
| Trent Thornton | Pit | sp | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13.5 | 0.0 | 13.5 | 6.0 | 3.0 | 99.0 | 1.50 |
| Lewis Thorpe* | KC | sp | 22 | 10 | 7 | 0 | 3 | 17 | 1 | 0 | 2 | 9.6 | 4.9 | 14.8 | 7.9 | 2.1 | 1.6 | 1.61 |
| Josh Tomlin | Hou | sp | 33 | 6 | 5 | 0 | 5 | 1 | 1 | 0 | 3 | 7.6 | 1.0 | 8.9 | 6.7 | 0.9 | 6.8 | 0.95 |
| Touki Toussaint | Tex | sp | 22 | 32 | 7 | 2 | 2 | 16 | 1 | 0 | 6 | 10.6 | 5.8 | 16.6 | 7.9 | 1.8 | 1.4 | 1.82 |
| Blake Treinen | | cl | 30 | 2 | 0 | 7 | 0 | 2 | 0 | 0 | 2 | 6.4 | 3.6 | 10.0 | 9.0 | 0.5 | 2.5 | 1.11 |
| Andrew Triggs | Was | sp | 29 | 4 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 10.2 | 2.0 | 12.9 | 5.1 | 0.8 | 2.6 | 1.35 |
| Lou Trivino | | mr | 26 | 14 | 5 | 0 | 8 | 9 | 1 | 0 | 4 | 8.0 | 5.0 | 13.9 | 7.6 | 0.5 | 1.5 | 1.45 |
| Nick Tropeano | Min | sp | 27 | 6 | 2 | 0 | 6 | 8 | 0 | 0 | 6 | 7.6 | 1.9 | 10.0 | 7.4 | 0.9 | 3.9 | 1.06 |
| Sam Tuivailala | StL | mr | 25 | 3 | 2 | 1 | 0 | 1 | 1 | 0 | 1 | 7.0 | 1.9 | 8.9 | 10.1 | 0.4 | 5.4 | 0.98 |
| Spencer Turnbull | SD | sp | 25 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13.5 | 0.0 | 13.5 | 4.5 | 4.5 | 99.0 | 1.50 |
| Duane Underwood | Tex | sp | 23 | 1 | 1 | 0 | 3 | 1 | 0 | 0 | 3 | 13.4 | 4.9 | 19.2 | 5.5 | 0.9 | 1.1 | 2.03 |
| Jose Urena | Tam | sp | 26 | 4 | 8 | 1 | 9 | 4 | 0 | 0 | 3 | 8.5 | 2.7 | 11.7 | 6.2 | 1.6 | 2.3 | 1.24 |
| Julio Urias* | Oak | sp | 21 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.3 | 5.1 | 12.4 | 7.7 | 1.5 | 1.5 | 1.38 |
| Framber Valdez* | Tex | sp | 24 | 6 | 2 | 1 | 2 | 5 | 0 | 0 | 2 | 11.1 | 5.8 | 17.3 | 7.1 | 0.9 | 1.2 | 1.88 |
| Jason Vargas* | Mil | sp | 35 | 14 | 5 | 0 | 8 | 2 | 0 | 4 | 1 | 9.6 | 2.8 | 13.0 | 7.2 | 1.6 | 2.5 | 1.38 |
| Vince Velasquez | StL | sp | 26 | 5 | 8 | 2 | 3 | 2 | 0 | 4 | 5 | 8.7 | 3.4 | 12.3 | 10.0 | 1.7 | 2.9 | 1.34 |
| Hector Velazquez | SD | sp | 29 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 12.0 | 0.0 | 15.0 | 3.0 | 3.0 | 99.0 | 1.33 |
| Justin Verlander | Pit | sp | 35 | 6 | 4 | 0 | 3 | 3 | 0 | 1 | 2 | 6.5 | 3.0 | 9.6 | 9.9 | 0.7 | 3.3 | 1.05 |
| Nick Vincent | StL | mr | 31 | 3 | 1 | 3 | 1 | 1 | 1 | 0 | 0 | 10.5 | 2.4 | 13.1 | 8.4 | 1.1 | 3.5 | 1.43 |
| Arodys Vizcaino | Cin | cl | 27 | 2 | 0 | 0 | 1 | 2 | 0 | 1 | 0 | 8.1 | 2.1 | 10.5 | 9.2 | 1.8 | 4.4 | 1.14 |
| Michael Wacha | Bos | sp | 26 | 4 | 3 | 0 | 1 | 8 | 1 | 0 | 2 | 7.5 | 1.7 | 9.3 | 8.8 | 1.3 | 5.0 | 1.02 |
| Bobby Wahl | Sea | mr | 26 | 0 | 1 | 0 | 1 | 2 | 0 | 0 | 0 | 15.2 | 20.3 | 37.1 | 13.5 | 1.7 | 0.7 | 3.94 |
| Adam Wainwright | Min | sp | 36 | 5 | 2 | 0 | 1 | 2 | 0 | 1 | 1 | 10.7 | 2.8 | 13.7 | 4.9 | 0.9 | 1.7 | 1.50 |
| Adam Warren | Sea | mr | 30 | 7 | 2 | 0 | 1 | 1 | 0 | 1 | 7 | 8.5 | 3.4 | 12.0 | 8.6 | 0.7 | 2.5 | 1.32 |
| Tony Watson* | Tor | mr | 33 | 4 | 1 | 2 | 3 | 1 | 0 | 0 | 1 | 7.8 | 3.4 | 11.6 | 7.3 | 1.2 | 2.1 | 1.25 |
| Luke Weaver | Cle | sp | 24 | 8 | 6 | 0 | 6 | 9 | 0 | 0 | 1 | 9.7 | 2.2 | 12.3 | 7.3 | 1.5 | 3.3 | 1.32 |
| Patrick Weigel | Tex | sp | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 9.0 | 0.0 | 99.0 | 0.00 |
| Zack Wheeler | Mia | sp | 28 | 3 | 8 | 1 | 1 | 5 | 1 | 3 | 1 | 9.4 | 3.7 | 13.2 | 8.1 | 1.0 | 2.2 | 1.46 |
| Forrest Whitley | Atl | sp | 20 | 22 | 7 | 1 | 7 | 14 | 0 | 3 | 5 | 8.0 | 5.9 | 14.4 | 12.2 | 1.4 | 2.1 | 1.55 |
| Brad Wieck* | StL | mr | 26 | 10 | 1 | 2 | 1 | 13 | 0 | 0 | 1 | 7.7 | 7.4 | 15.2 | 12.2 | 1.5 | 1.6 | 1.68 |
| Taylor Williams | | sp | 26 | 3 | 1 | 2 | 2 | 5 | 0 | 1 | 1 | 6.7 | 4.1 | 11.2 | 9.1 | 1.7 | 2.2 | 1.20 |
| Trevor Williams | | sp | 26 | 9 | 4 | 0 | 4 | 3 | 0 | 0 | 4 | 8.2 | 2.6 | 11.1 | 8.3 | 1.1 | 3.2 | 1.20 |
| Justin Wilson* | Det | mr | 30 | 6 | 3 | 0 | 1 | 2 | 0 | 0 | 1 | 7.8 | 4.4 | 12.4 | 12.2 | 0.7 | 2.8 | 1.36 |
| Dan Winkler | LAN | mr | 28 | 12 | 5 | 2 | 3 | 0 | 0 | 0 | 0 | 9.3 | 4.2 | 14.0 | 10.5 | 1.2 | 2.5 | 1.50 |
| Matt Wisler | | sp | 25 | 1 | 0 | 0 | 3 | 0 | 0 | 0 | 2 | 11.8 | 1.8 | 14.1 | 5.4 | 1.5 | 2.9 | 1.52 |
| Nick Wittgren | StL | mr | 27 | 2 | 5 | 2 | 2 | 3 | 1 | 0 | 3 | 9.0 | 1.4 | 10.7 | 8.3 | 1.1 | 5.8 | 1.16 |
| Alex Wood* | Was | sp | 27 | 8 | 6 | 2 | 3 | 2 | 1 | 3 | 3 | 8.1 | 2.8 | 11.0 | 9.2 | 0.8 | 3.3 | 1.21 |
| Brandon Woodruff | ChA | sp | 25 | 9 | 2 | 0 | 4 | 1 | 0 | 0 | 2 | 9.0 | 2.4 | 11.9 | 8.2 | 1.2 | 3.4 | 1.27 |
| Ryan Yarbrough* | SD | sp | 26 | 4 | 3 | 0 | 3 | 0 | 0 | 1 | 0 | 8.5 | 0.7 | 9.7 | 7.9 | 1.2 | 11.3 | 1.02 |
| Kirby Yates | Bos | mr | 31 | 11 | 1 | 2 | 3 | 0 | 0 | 0 | 1 | 8.8 | 4.5 | 13.8 | 14.1 | 2.1 | 3.1 | 1.48 |
| Rob Zastryzny* | LAN | sp | 26 | 1 | 0 | 1 | 0 | 4 | 0 | 0 | 1 | 9.8 | 5.3 | 15.1 | 8.4 | 1.4 | 1.6 | 1.67 |
| Brad Ziegler | Pit | cl | 38 | 1 | 1 | 0 | 5 | 2 | 0 | 1 | 4 | 9.4 | 2.8 | 12.9 | 5.7 | 0.2 | 2.1 | 1.35 |
| Jordan Zimmermann | Pit | sp | 32 | 1 | 0 | 0 | 0 | 1 | 0 | 3 | 1 | 7.2 | 2.1 | 9.3 | 6.6 | 1.1 | 3.1 | 1.03 |
| Analytical |
| Name | Team | P | Age | OPS | BIP | IPAVG | TBW | TBW/BF | TBWH | TBWH/BF | RC | RC27 | RCERA | CERA |
| Albert Abreu | NYA | sp | 22 | .900 | 3 | .333 | 3 | .600 | 3 | .600 | 0.9 | 8.1 | 7.32 | 5.48 |
| Domingo Acevedo | Cle | sp | 24 | .739 | 197 | .279 | 133 | .452 | 139 | .473 | 36.4 | 4.7 | 4.27 | 4.21 |
| Chance Adams | KC | sp | 23 | .812 | 165 | .315 | 127 | .506 | 129 | .514 | 35.3 | 5.7 | 5.17 | 5.41 |
| Matt Albers | Mil | mr | 35 | .818 | 192 | .302 | 155 | .520 | 157 | .527 | 42.7 | 5.4 | 4.83 | 4.66 |
| Sandy Alcantara | Bos | sp | 22 | 1.027 | 201 | .343 | 196 | .641 | 200 | .654 | 67.4 | 9.9 | 9.14 | 9.84 |
| Scott Alexander* | LAA | mr | 28 | .612 | 166 | .259 | 89 | .372 | 92 | .385 | 19.5 | 3.0 | 2.71 | 2.70 |
| Kolby Allard* | Min | sp | 20 | .782 | 69 | .348 | 49 | .467 | 51 | .486 | 14.5 | 5.5 | 4.95 | 4.59 |
| Cody Allen | Bal | cl | 29 | .582 | 200 | .280 | 118 | .355 | 123 | .370 | 26.1 | 2.8 | 2.59 | 2.24 |
| Yency Almonte | Tam | sp | 24 | 1.161 | 14 | .357 | 14 | .737 | 14 | .737 | 5.0 | 12.2 | 12.05 | 13.28 |
| Dan Altavilla | LAN | mr | 25 | .689 | 43 | .233 | 32 | .438 | 34 | .466 | 7.6 | 4.0 | 3.87 | 3.96 |
| Jose Alvarado* | Ari | mr | 23 | .815 | 204 | .358 | 191 | .513 | 193 | .519 | 55.9 | 6.6 | 5.90 | 6.24 |
| Dario Alvarez* | Phi | mr | 29 | .752 | 111 | .333 | 126 | .500 | 127 | .504 | 30.1 | 4.6 | 4.11 | 4.04 |
| Jose Alvarez* | | mr | 29 | .583 | 217 | .286 | 111 | .337 | 116 | .353 | 24.6 | 2.6 | 2.40 | 2.34 |
| Yadier Alvarez | Tex | sp | 22 | .681 | 96 | .250 | 71 | .438 | 73 | .451 | 17.9 | 4.3 | 3.96 | 3.97 |
| Chase Anderson | NYN | sp | 30 | .814 | 525 | .309 | 387 | .508 | 393 | .516 | 105.3 | 5.3 | 4.84 | 4.86 |
| Tyler Anderson* | Bos | sp | 28 | .755 | 583 | .252 | 421 | .488 | 429 | .498 | 105.3 | 4.5 | 4.14 | 4.02 |
| Matt Andriese | ChN | sp | 28 | .739 | 419 | .310 | 263 | .446 | 269 | .456 | 68.9 | 4.3 | 3.93 | 3.81 |
| Victor Arano | Tex | mr | 23 | .791 | 312 | .298 | 250 | .512 | 251 | .514 | 67.9 | 5.3 | 4.80 | 4.53 |
| Chris Archer | SD | sp | 29 | .675 | 495 | .317 | 354 | .421 | 357 | .425 | 87.3 | 3.9 | 3.53 | 3.30 |
| Rogelio Armenteros | Sea | sp | 24 | .685 | 459 | .268 | 302 | .430 | 309 | .440 | 74.2 | 4.0 | 3.66 | 3.53 |
| Shawn Armstrong | | mr | 27 | 1.009 | 13 | .385 | 12 | .632 | 12 | .632 | 3.9 | 8.7 | 7.85 | 9.16 |
| Jake Arrieta | | sp | 32 | .815 | 487 | .294 | 411 | .518 | 424 | .535 | 117.5 | 5.8 | 5.20 | 4.93 |
| Luis Avilan* | | mr | 28 | .749 | 112 | .321 | 91 | .484 | 91 | .484 | 22.3 | 4.5 | 4.08 | 4.07 |
| Pedro Baez | Was | mr | 30 | .756 | 31 | .355 | 22 | .458 | 22 | .458 | 6.6 | 5.9 | 5.33 | 5.92 |
| Luke Bard | Atl | mr | 27 | 1.007 | 10 | .400 | 12 | .632 | 12 | .632 | 4.3 | 11.6 | 10.41 | 12.57 |
| Danny Barnes | SF | mr | 28 | .691 | 91 | .330 | 67 | .432 | 68 | .439 | 16.2 | 3.8 | 3.39 | 3.13 |
| Jacob Barnes | Tor | mr | 28 | .700 | 242 | .285 | 177 | .445 | 180 | .452 | 41.8 | 3.9 | 3.54 | 3.63 |
| Matt Barnes | | mr | 28 | .682 | 180 | .300 | 130 | .430 | 131 | .434 | 29.7 | 3.7 | 3.34 | 3.72 |
| Kyle Barraclough | Was | mr | 28 | .518 | 142 | .204 | 98 | .355 | 98 | .355 | 19.3 | 2.6 | 2.32 | 2.15 |
| Aaron Barrett | Atl | mr | 30 | .871 | 35 | .343 | 24 | .500 | 25 | .521 | 8.0 | 7.0 | 6.29 | 6.45 |
| Jaime Barria | | sp | 21 | .911 | 121 | .364 | 85 | .552 | 86 | .558 | 30.3 | 8.3 | 7.50 | 7.22 |
| Trevor Bauer | NYA | sp | 27 | .674 | 387 | .279 | 267 | .427 | 271 | .434 | 63.8 | 3.8 | 3.42 | 3.27 |
| Buddy Baumann* | SF | mr | 30 | .628 | 267 | .262 | 168 | .396 | 172 | .406 | 35.8 | 3.1 | 2.77 | 2.69 |
| Cam Bedrosian | | mr | 26 | .641 | 132 | .295 | 88 | .393 | 91 | .406 | 21.1 | 3.5 | 3.20 | 3.16 |
| Tyler Beede | NYA | sp | 25 | .802 | 195 | .303 | 150 | .507 | 152 | .514 | 39.6 | 5.2 | 4.77 | 5.16 |
| Matt Belisle | NYA | mr | 38 | .520 | 153 | .216 | 65 | .310 | 68 | .324 | 12.4 | 2.0 | 1.79 | 1.58 |
| Jose Berrios | Cle | sp | 24 | .696 | 401 | .272 | 269 | .431 | 282 | .452 | 65.7 | 3.9 | 3.53 | 3.44 |
| Dellin Betances | NYA | cl | 30 | .485 | 148 | .243 | 84 | .304 | 87 | .315 | 16.9 | 2.2 | 2.00 | 1.88 |
| Chad Bettis | LAA | sp | 29 | .610 | 507 | .229 | 256 | .375 | 265 | .388 | 58.0 | 3.0 | 2.75 | 2.42 |
| Joe Biagini | NYN | sp | 28 | .705 | 223 | .265 | 144 | .440 | 147 | .450 | 39.8 | 4.7 | 4.21 | 3.66 |
| Jesse Biddle* | Col | mr | 26 | .877 | 137 | .336 | 119 | .548 | 122 | .562 | 32.9 | 6.0 | 5.36 | 5.75 |
| Shane Bieber | | sp | 23 | .648 | 531 | .279 | 254 | .377 | 263 | .390 | 64.8 | 3.5 | 3.17 | 3.00 |
| Paul Blackburn | ChA | sp | 24 | .610 | 97 | .237 | 50 | .391 | 50 | .391 | 11.4 | 3.3 | 2.96 | 2.33 |
| Jerry Blevins* | Sea | mr | 34 | .666 | 122 | .344 | 91 | .412 | 93 | .421 | 23.7 | 4.3 | 3.83 | 3.68 |
| Ryan Borucki* | LAN | sp | 24 | .919 | 118 | .347 | 109 | .568 | 110 | .573 | 35.2 | 7.5 | 6.83 | 6.99 |
| Matthew Bowman | Min | mr | 27 | .583 | 152 | .250 | 76 | .355 | 77 | .360 | 16.4 | 2.7 | 2.47 | 2.43 |
| Brad Boxberger | LAA | mr | 30 | .836 | 16 | .313 | 19 | .559 | 19 | .559 | 4.1 | 4.4 | 4.10 | 5.60 |
| Matt Boyd* | | sp | 27 | .699 | 306 | .314 | 173 | .420 | 173 | .420 | 47.6 | 4.4 | 4.00 | 3.72 |
| Brad Brach | SD | cl | 32 | .625 | 199 | .261 | 137 | .407 | 137 | .407 | 27.5 | 2.9 | 2.62 | 2.73 |
| Silvino Bracho | | mr | 25 | .858 | 49 | .327 | 59 | .541 | 62 | .569 | 17.6 | 6.6 | 6.04 | 6.41 |
| Chasen Bradford | Tam | mr | 28 | .787 | 115 | .339 | 65 | .445 | 69 | .473 | 18.8 | 5.0 | 4.52 | 4.72 |
| Archie Bradley | Ari | mr | 25 | .838 | 237 | .342 | 202 | .530 | 204 | .535 | 57.6 | 5.9 | 5.34 | 5.17 |
| Steven Brault* | ChN | sp | 26 | .743 | 251 | .275 | 172 | .473 | 174 | .478 | 43.4 | 4.5 | 4.16 | 4.06 |
| John Brebbia | | mr | 28 | .811 | 99 | .313 | 71 | .507 | 72 | .514 | 20.5 | 5.6 | 5.04 | 4.91 |
| Zach Britton* | | cl | 30 | .435 | 96 | .219 | 38 | .266 | 38 | .266 | 6.6 | 1.5 | 1.39 | 1.16 |
| Clay Buchholz | NYN | sp | 33 | .936 | 110 | .318 | 96 | .611 | 96 | .611 | 29.1 | 7.5 | 6.87 | 6.67 |
| Ryan Buchter* | SF | mr | 31 | .485 | 26 | .269 | 12 | .293 | 12 | .293 | 2.2 | 1.9 | 1.73 | 1.79 |
| Walker Buehler | Cle | sp | 23 | .767 | 156 | .346 | 157 | .500 | 157 | .500 | 41.3 | 5.1 | 4.69 | 4.95 |
| Madison Bumgarner* | Tor | sp | 28 | .708 | 386 | .298 | 268 | .445 | 274 | .455 | 65.9 | 4.0 | 3.60 | 3.29 |
| Aaron Bummer* | | mr | 24 | .924 | 29 | .414 | 28 | .571 | 28 | .571 | 8.5 | 7.6 | 6.87 | 8.33 |
| Dylan Bundy | LAA | sp | 25 | .708 | 579 | .292 | 385 | .446 | 390 | .451 | 93.4 | 4.0 | 3.54 | 3.36 |
| Nick Burdi | LAA | mr | 25 | .617 | 20 | .300 | 12 | .364 | 13 | .394 | 2.6 | 2.7 | 2.43 | 2.16 |
| Corbin Burnes | Ari | sp | 23 | .684 | 452 | .283 | 331 | .432 | 338 | .441 | 79.4 | 3.9 | 3.57 | 3.56 |
| Beau Burrows | Cle | sp | 21 | .941 | 210 | .348 | 175 | .565 | 183 | .590 | 55.6 | 7.6 | 6.89 | 7.98 |
| Matt Bush | SF | mr | 32 | .510 | 216 | .259 | 106 | .313 | 107 | .316 | 21.4 | 2.2 | 2.01 | 1.74 |
| Genesis Cabrera* | Ari | sp | 21 | .857 | 218 | .303 | 173 | .531 | 178 | .546 | 51.9 | 6.8 | 6.18 | 6.24 |
| Carter Capps | Phi | mr | 27 | .660 | 26 | .308 | 16 | .390 | 16 | .390 | 4.4 | 4.1 | 3.71 | 3.79 |
| Carlos Carrasco | | sp | 31 | .531 | 466 | .258 | 254 | .327 | 260 | .335 | 49.6 | 2.2 | 1.99 | 1.80 |
| Cody Carroll | NYN | mr | 25 | .872 | 20 | .350 | 22 | .564 | 22 | .564 | 6.6 | 8.1 | 7.00 | 7.75 |
| Andrew Cashner | Bal | sp | 31 | .947 | 241 | .278 | 216 | .617 | 221 | .631 | 66.3 | 7.5 | 6.92 | 6.56 |
| Diego Castillo | LAN | mr | 24 | .648 | 324 | .269 | 192 | .399 | 196 | .407 | 43.2 | 3.2 | 2.92 | 2.75 |
| Jose Castillo* | Tam | mr | 22 | .523 | 89 | .202 | 44 | .341 | 44 | .341 | 8.5 | 2.3 | 2.11 | 1.87 |
| Luis Castillo | | sp | 25 | .588 | 539 | .265 | 296 | .364 | 302 | .371 | 62.1 | 2.7 | 2.43 | 2.16 |
| Miguel Castro | Tex | mr | 23 | .811 | 330 | .324 | 218 | .486 | 224 | .499 | 64.3 | 5.5 | 5.12 | 5.35 |
| Simon Castro | LAN | mr | 30 | .738 | 156 | .288 | 136 | .474 | 139 | .484 | 34.2 | 4.5 | 4.07 | 3.99 |
| Brett Cecil* | Det | mr | 31 | .684 | 114 | .298 | 76 | .429 | 77 | .435 | 18.3 | 3.8 | 3.45 | 3.32 |
| Xavier Cedeno* | Mia | mr | 31 | .795 | 114 | .412 | 82 | .466 | 84 | .477 | 25.5 | 5.9 | 5.43 | 5.25 |
| Luis Cessa | | sp | 26 | .814 | 83 | .277 | 63 | .512 | 64 | .520 | 18.7 | 5.9 | 5.54 | 5.14 |
| Jhoulys Chacin | Det | sp | 30 | .728 | 287 | .296 | 177 | .442 | 182 | .455 | 47.9 | 4.6 | 4.17 | 3.90 |
| Andrew Chafin* | Was | mr | 28 | .524 | 152 | .250 | 77 | .324 | 78 | .328 | 13.8 | 2.0 | 1.82 | 1.82 |
| Aroldis Chapman* | Oak | cl | 30 | .580 | 92 | .250 | 84 | .394 | 85 | .399 | 16.6 | 2.9 | 2.61 | 2.76 |
| J.T. Chargois | LAN | mr | 27 | .665 | 48 | .271 | 29 | .408 | 30 | .423 | 6.1 | 3.1 | 2.86 | 3.28 |
| Tyler Chatwood | | sp | 28 | .757 | 434 | .276 | 316 | .483 | 319 | .488 | 80.1 | 4.7 | 4.34 | 4.57 |
| Jesse Chavez | StL | sp | 34 | .781 | 267 | .322 | 182 | .481 | 183 | .484 | 52.7 | 5.6 | 5.04 | 4.89 |
| Wei-Yin Chen* | Min | sp | 32 | .709 | 489 | .294 | 302 | .442 | 302 | .442 | 75.0 | 4.0 | 3.63 | 3.52 |
| Yonny Chirinos | ChN | sp | 24 | .796 | 222 | .333 | 137 | .461 | 142 | .478 | 40.3 | 5.3 | 4.88 | 4.97 |
| Adam Cimber | LAA | mr | 27 | .657 | 144 | .313 | 70 | .376 | 71 | .382 | 17.8 | 3.5 | 3.27 | 3.47 |
| Tony Cingrani* | Hou | mr | 28 | .848 | 256 | .316 | 220 | .542 | 222 | .547 | 63.8 | 6.3 | 5.81 | 5.84 |
| Steve Cishek | Pit | mr | 32 | .644 | 188 | .293 | 122 | .401 | 124 | .408 | 27.3 | 3.2 | 2.95 | 2.87 |
| Brian Clark* | | mr | 25 | .648 | 289 | .291 | 158 | .383 | 164 | .397 | 38.5 | 3.4 | 3.15 | 3.10 |
| Taylor Clarke | Mil | sp | 25 | .824 | 38 | .237 | 31 | .517 | 33 | .550 | 8.3 | 5.4 | 4.61 | 5.21 |
| Alex Claudio* | Cin | mr | 26 | .705 | 233 | .292 | 137 | .425 | 140 | .435 | 33.5 | 3.8 | 3.51 | 3.60 |
| Michael Clevinger | Bos | sp | 27 | .791 | 233 | .258 | 207 | .527 | 208 | .529 | 52.7 | 5.1 | 4.67 | 4.53 |
| Tyler Clippard | Min | mr | 33 | .604 | 147 | .286 | 104 | .385 | 105 | .389 | 24.9 | 3.5 | 3.15 | 2.77 |
| Corbin Clouse* | | mr | 23 | .897 | 35 | .229 | 38 | .603 | 38 | .603 | 10.6 | 7.1 | 6.41 | 6.36 |
| Alex Cobb | | sp | 30 | .668 | 555 | .283 | 317 | .404 | 328 | .418 | 77.5 | 3.6 | 3.32 | 3.08 |
| Gerrit Cole | LAA | sp | 27 | .581 | 598 | .263 | 332 | .360 | 341 | .370 | 68.3 | 2.5 | 2.29 | 1.98 |
| Alex Colome | SF | cl | 29 | .674 | 249 | .285 | 147 | .414 | 149 | .420 | 35.9 | 3.8 | 3.38 | 3.21 |
| Adam Conley* | | sp | 28 | .818 | 93 | .323 | 71 | .511 | 73 | .525 | 19.3 | 5.4 | 4.60 | 4.58 |
| Patrick Corbin* | | sp | 28 | .729 | 497 | .286 | 349 | .462 | 354 | .468 | 89.3 | 4.5 | 4.01 | 3.72 |
| Nestor Cortes* | Tam | mr | 23 | .818 | 251 | .283 | 214 | .528 | 217 | .536 | 56.0 | 5.3 | 4.72 | 4.65 |
| Daniel Coulombe* | ChA | mr | 28 | .617 | 160 | .256 | 97 | .385 | 99 | .393 | 20.8 | 2.9 | 2.63 | 2.50 |
| Kyle Crick | Cle | mr | 25 | .816 | 199 | .342 | 181 | .506 | 187 | .522 | 53.5 | 6.2 | 5.51 | 5.76 |
| Johnny Cueto | Mil | sp | 32 | .851 | 245 | .359 | 185 | .517 | 188 | .525 | 56.2 | 6.4 | 5.78 | 5.89 |
| John Curtiss | Was | mr | 25 | .643 | 196 | .276 | 134 | .402 | 138 | .414 | 30.8 | 3.4 | 3.13 | 3.08 |
| Yu Darvish | NYA | sp | 31 | .654 | 158 | .241 | 108 | .425 | 111 | .437 | 24.1 | 3.4 | 3.11 | 2.73 |
| Zach Davies | | sp | 25 | .738 | 365 | .299 | 242 | .461 | 244 | .465 | 60.1 | 4.3 | 3.86 | 3.98 |
| Austin Davis* | Oak | mr | 25 | .286 | 3 | .333 | 1 | .143 | 1 | .143 | 0.2 | 1.0 | 0.88 | 0.54 |
| Wade Davis | Det | cl | 32 | .621 | 172 | .244 | 121 | .401 | 124 | .411 | 23.2 | 2.7 | 2.41 | 2.53 |
| Enyel de los Santos | Oak | sp | 22 | .726 | 135 | .304 | 83 | .439 | 85 | .450 | 21.7 | 4.4 | 4.02 | 4.14 |
| Jacob deGrom | Tor | sp | 30 | .676 | 569 | .299 | 377 | .427 | 378 | .429 | 85.4 | 3.5 | 3.11 | 3.06 |
| Randall Delgado | Mil | mr | 28 | .625 | 239 | .272 | 137 | .384 | 139 | .389 | 32.1 | 3.3 | 3.00 | 2.85 |
| Anthony DeSclafani | Ari | sp | 28 | .661 | 420 | .264 | 231 | .398 | 240 | .413 | 57.0 | 3.6 | 3.28 | 3.10 |
| Chris Devenski | Det | mr | 27 | .533 | 177 | .260 | 95 | .325 | 98 | .336 | 18.2 | 2.1 | 1.90 | 1.69 |
| Dayan Diaz | NYA | mr | 29 | .631 | 34 | .353 | 20 | .370 | 20 | .370 | 5.1 | 3.3 | 3.01 | 2.75 |
| Edwin Diaz | Cle | cl | 24 | .613 | 157 | .350 | 118 | .384 | 120 | .391 | 27.2 | 3.3 | 2.90 | 2.49 |
| Miguel Diaz | Tex | mr | 23 | .792 | 105 | .324 | 73 | .471 | 76 | .490 | 21.5 | 5.5 | 4.97 | 5.51 |
| Jake Diekman* | SF | mr | 31 | .677 | 153 | .294 | 125 | .442 | 126 | .445 | 28.0 | 3.7 | 3.38 | 3.24 |
| Marcos Diplan | Atl | sp | 21 | .545 | 9 | .222 | 4 | .364 | 4 | .364 | 0.8 | 2.5 | 2.22 | 0.91 |
| Seranthony Dominguez | | sp | 23 | .778 | 126 | .310 | 107 | .498 | 108 | .502 | 26.9 | 4.7 | 4.24 | 4.49 |
| Sean Doolittle* | SF | cl | 31 | .767 | 160 | .363 | 147 | .492 | 148 | .495 | 37.6 | 4.6 | 4.21 | 3.98 |
| Brian Duensing* | StL | mr | 35 | .546 | 106 | .217 | 50 | .340 | 51 | .347 | 10.0 | 2.4 | 2.16 | 1.95 |
| Danny Duffy* | SF | sp | 29 | .615 | 523 | .249 | 303 | .384 | 311 | .394 | 63.6 | 2.8 | 2.59 | 2.45 |
| Zach Duke* | KC | mr | 35 | .613 | 141 | .270 | 88 | .384 | 90 | .393 | 17.7 | 2.8 | 2.52 | 2.71 |
| Mike Dunn* | Min | mr | 33 | .557 | 48 | .250 | 29 | .363 | 29 | .363 | 6.1 | 2.8 | 2.57 | 2.26 |
| Sam Dyson | Tam | cl | 30 | .603 | 71 | .225 | 37 | .374 | 38 | .384 | 7.4 | 2.6 | 2.44 | 2.77 |
| Mark Ecker | Bal | mr | 23 | 1.538 | 9 | .333 | 13 | 1.000 | 13 | 1.000 | 5.8 | 26.1 | 23.51 | 20.26 |
| Carl Edwards Jr. | Mia | mr | 26 | .578 | 133 | .256 | 106 | .385 | 106 | .385 | 20.6 | 2.7 | 2.53 | 2.56 |
| Zach Eflin | Tam | sp | 24 | .814 | 343 | .303 | 232 | .489 | 243 | .513 | 67.1 | 5.5 | 4.94 | 5.07 |
| Jerad Eickhoff | LAA | sp | 27 | .736 | 97 | .268 | 61 | .459 | 63 | .474 | 15.1 | 4.1 | 3.70 | 3.70 |
| Nathan Eovaldi | Ari | sp | 28 | .817 | 376 | .351 | 259 | .491 | 262 | .497 | 78.6 | 6.0 | 5.46 | 5.31 |
| Robbie Erlin* | Tex | sp | 27 | .791 | 537 | .322 | 367 | .489 | 370 | .493 | 101.0 | 5.1 | 4.60 | 4.44 |
| Luis Escobar | Bos | sp | 22 | .854 | 55 | .291 | 43 | .524 | 45 | .549 | 13.1 | 6.8 | 6.14 | 6.70 |
| Thomas Eshelman | ChA | sp | 24 | .746 | 323 | .279 | 221 | .475 | 224 | .482 | 53.0 | 4.1 | 3.70 | 3.56 |
| Carlos Estevez | Min | mr | 25 | .740 | 37 | .243 | 25 | .455 | 27 | .491 | 6.7 | 4.7 | 4.51 | 3.88 |
| Marco Estrada | Cin | sp | 34 | .570 | 324 | .191 | 189 | .376 | 191 | .380 | 36.6 | 2.5 | 2.28 | 2.04 |
| Jeurys Familia | | cl | 28 | .752 | 161 | .335 | 123 | .469 | 123 | .469 | 31.4 | 4.6 | 4.17 | 4.62 |
| Jacob Faria | Tam | sp | 24 | .772 | 211 | .308 | 168 | .488 | 172 | .500 | 46.5 | 5.3 | 4.83 | 4.44 |
| Erick Fedde | Cle | sp | 25 | .879 | 195 | .313 | 149 | .542 | 154 | .560 | 42.3 | 6.0 | 5.62 | 5.72 |
| Michael Feliz | Det | mr | 25 | .702 | 385 | .288 | 316 | .455 | 320 | .461 | 75.3 | 4.0 | 3.64 | 3.66 |
| Riley Ferrell | Oak | mr | 24 | .696 | 38 | .289 | 26 | .441 | 26 | .441 | 4.3 | 2.4 | 2.20 | 3.71 |
| Josh Fields | Phi | mr | 32 | .652 | 184 | .326 | 121 | .395 | 124 | .405 | 29.7 | 3.6 | 3.26 | 2.91 |
| Mike Fiers | StL | sp | 33 | .758 | 404 | .265 | 294 | .494 | 298 | .501 | 73.9 | 4.6 | 4.17 | 3.78 |
| Brandon Finnegan* | Oak | sp | 25 | .657 | 185 | .222 | 122 | .424 | 125 | .434 | 28.7 | 3.6 | 3.27 | 2.94 |
| Doug Fister | Mil | sp | 34 | .638 | 187 | .294 | 93 | .378 | 94 | .382 | 22.4 | 3.4 | 3.10 | 3.12 |
| Jack Flaherty | Bal | sp | 22 | .727 | 537 | .291 | 363 | .453 | 371 | .463 | 94.6 | 4.5 | 4.03 | 3.89 |
| Chris Flexen | Hou | sp | 23 | .794 | 442 | .305 | 319 | .494 | 326 | .505 | 90.2 | 5.4 | 4.94 | 4.76 |
| Jose Flores | Cin | mr | 25 | .250 | 4 | .000 | 2 | .250 | 2 | .250 | 0.4 | 1.8 | 1.58 | 0.94 |
| Brian Flynn* | Phi | mr | 28 | .645 | 563 | .275 | 333 | .394 | 341 | .404 | 79.8 | 3.5 | 3.20 | 3.04 |
| Mike Foltynewicz | | sp | 26 | .677 | 336 | .286 | 211 | .415 | 217 | .426 | 50.9 | 3.7 | 3.35 | 3.28 |
| Wilmer Font | SF | sp | 28 | .660 | 499 | .283 | 319 | .400 | 334 | .419 | 78.6 | 3.6 | 3.29 | 3.20 |
| Kyle Freeland* | ChA | sp | 25 | .708 | 454 | .269 | 286 | .439 | 295 | .452 | 71.1 | 4.1 | 3.77 | 3.77 |
| Sam Freeman* | NYN | mr | 31 | .675 | 57 | .316 | 46 | .430 | 47 | .439 | 10.4 | 3.6 | 3.31 | 3.58 |
| Max Fried* | Ari | sp | 24 | 1.002 | 85 | .400 | 79 | .594 | 81 | .609 | 29.4 | 10.1 | 9.06 | 8.68 |
| Jace Fry* | | mr | 24 | .653 | 132 | .303 | 84 | .400 | 86 | .410 | 20.2 | 3.8 | 3.42 | 3.75 |
| Carson Fulmer | ChA | sp | 24 | .556 | 7 | .143 | 4 | .333 | 5 | .417 | 0.9 | 3.1 | 2.81 | 2.59 |
| Michael Fulmer | Mia | sp | 25 | .564 | 484 | .258 | 242 | .337 | 252 | .350 | 50.2 | 2.4 | 2.23 | 2.12 |
| Giovanny Gallegos | SF | mr | 26 | .651 | 232 | .349 | 163 | .397 | 166 | .404 | 39.5 | 3.6 | 3.20 | 3.07 |
| John Gant | Hou | sp | 25 | .718 | 353 | .286 | 250 | .445 | 260 | .463 | 67.7 | 4.5 | 4.17 | 3.84 |
| Jaime Garcia* | Atl | sp | 31 | .743 | 617 | .314 | 420 | .457 | 426 | .463 | 110.1 | 4.5 | 4.06 | 3.96 |
| Luis Garcia | Bos | mr | 31 | .748 | 182 | .379 | 119 | .446 | 119 | .446 | 31.4 | 4.5 | 4.06 | 4.32 |
| Yimi Garcia | SD | mr | 27 | .740 | 112 | .268 | 82 | .480 | 82 | .480 | 21.6 | 4.7 | 4.26 | 3.79 |
| Nick Gardewine | Cle | mr | 24 | .835 | 58 | .345 | 45 | .500 | 46 | .511 | 13.2 | 6.1 | 5.75 | 6.33 |
| Amir Garrett* | Tex | sp | 26 | .828 | 395 | .296 | 342 | .532 | 348 | .541 | 98.9 | 6.1 | 5.59 | 5.32 |
| Matt Garza | Atl | sp | 34 | .944 | 8 | .375 | 5 | .556 | 5 | .556 | 1.9 | 10.2 | 9.20 | 8.83 |
| Kevin Gausman | | sp | 27 | .746 | 505 | .297 | 393 | .478 | 396 | .481 | 98.5 | 4.5 | 4.09 | 4.08 |
| Cory Gearrin | Atl | mr | 32 | .772 | 264 | .337 | 182 | .469 | 185 | .477 | 49.2 | 4.9 | 4.53 | 4.93 |
| Domingo German | Oak | sp | 25 | .705 | 221 | .339 | 137 | .423 | 139 | .429 | 35.2 | 4.0 | 3.69 | 3.67 |
| Ian Gibaut | | mr | 24 | .840 | 57 | .281 | 43 | .531 | 44 | .543 | 12.1 | 5.9 | 5.36 | 5.34 |
| Kyle Gibson | Bos | sp | 30 | .724 | 605 | .299 | 382 | .446 | 387 | .452 | 93.7 | 4.1 | 3.67 | 3.82 |
| Ken Giles | Sea | cl | 27 | .622 | 170 | .282 | 133 | .408 | 134 | .411 | 30.2 | 3.3 | 2.98 | 2.44 |
| Lucas Giolito | Col | sp | 23 | .818 | 499 | .351 | 378 | .497 | 388 | .510 | 119.0 | 6.4 | 5.77 | 5.36 |
| Mychal Givens | Cin | mr | 28 | .690 | 197 | .310 | 143 | .418 | 151 | .442 | 36.4 | 4.0 | 3.64 | 3.65 |
| Tyler Glasnow | Oak | sp | 24 | .628 | 432 | .313 | 298 | .389 | 305 | .398 | 69.5 | 3.3 | 3.01 | 2.99 |
| Koda Glover | Cle | mr | 25 | .868 | 71 | .310 | 61 | .565 | 61 | .565 | 17.0 | 6.0 | 5.36 | 5.79 |
| Zack Godley | NYN | sp | 28 | .728 | 409 | .293 | 302 | .462 | 307 | .469 | 69.7 | 3.9 | 3.49 | 3.68 |
| Luiz Gohara* | Sea | sp | 21 | .572 | 79 | .291 | 44 | .346 | 45 | .354 | 9.3 | 2.7 | 2.39 | 2.46 |
| Austin Gomber* | StL | sp | 24 | .668 | 507 | .241 | 322 | .428 | 327 | .434 | 73.8 | 3.6 | 3.27 | 3.18 |
| Stephen Gonsalves* | KC | sp | 23 | .668 | 499 | .257 | 322 | .418 | 333 | .432 | 84.6 | 4.2 | 3.85 | 3.65 |
| Marco Gonzales* | | sp | 26 | .704 | 264 | .314 | 165 | .431 | 166 | .433 | 40.2 | 3.9 | 3.54 | 3.65 |
| Gio Gonzalez* | Cin | sp | 32 | .577 | 534 | .249 | 296 | .360 | 299 | .364 | 62.9 | 2.7 | 2.50 | 2.35 |
| Nick Goody | Oak | mr | 26 | .176 | 4 | .000 | 3 | .176 | 3 | .176 | 0.1 | 0.3 | 0.24 | 0.43 |
| Matt Grace* | LAA | mr | 29 | .568 | 54 | .278 | 22 | .319 | 23 | .333 | 4.8 | 2.4 | 2.23 | 2.16 |
| Kendall Graveman | Cle | sp | 27 | .537 | 188 | .218 | 90 | .337 | 92 | .345 | 16.7 | 2.2 | 1.96 | 1.85 |
| Jon Gray | | sp | 26 | .645 | 501 | .279 | 299 | .399 | 304 | .405 | 72.3 | 3.5 | 3.21 | 2.80 |
| Sonny Gray | SF | sp | 28 | .698 | 573 | .281 | 383 | .436 | 390 | .444 | 93.3 | 3.9 | 3.56 | 3.44 |
| Chad Green | ChN | mr | 27 | .705 | 183 | .317 | 143 | .440 | 148 | .455 | 36.1 | 4.2 | 3.83 | 3.71 |
| Shane Greene | Bal | mr | 29 | .622 | 113 | .230 | 72 | .389 | 76 | .411 | 15.6 | 3.0 | 2.73 | 2.92 |
| Zack Greinke | Bal | sp | 34 | .659 | 570 | .272 | 352 | .414 | 355 | .417 | 78.4 | 3.3 | 2.96 | 3.02 |
| Robert Gsellman | Mia | sp | 24 | .619 | 42 | .310 | 20 | .357 | 20 | .357 | 5.0 | 3.3 | 2.94 | 3.05 |
| Deolis Guerra | Atl | mr | 29 | .667 | 6 | .333 | 2 | .333 | 2 | .333 | 0.4 | 2.3 | 3.40 | 6.14 |
| Junior Guerra | ChN | sp | 33 | .802 | 27 | .370 | 26 | .520 | 26 | .520 | 7.1 | 5.8 | 5.21 | 4.93 |
| Josh Hader* | Oak | mr | 24 | .634 | 112 | .268 | 114 | .430 | 115 | .434 | 24.3 | 3.3 | 3.06 | 3.03 |
| Matt Hall* | ChN | sp | 24 | .900 | 4 | .500 | 3 | .500 | 3 | .500 | 1.1 | 10.2 | 9.15 | 12.01 |
| Cole Hamels* | Cin | sp | 34 | .664 | 534 | .268 | 327 | .409 | 337 | .422 | 80.4 | 3.7 | 3.39 | 3.24 |
| Jason Hammel | Sea | sp | 35 | .775 | 628 | .283 | 447 | .489 | 459 | .502 | 127.3 | 5.3 | 4.83 | 4.32 |
| Brad Hand* | SD | cl | 28 | .684 | 188 | .346 | 139 | .406 | 147 | .430 | 36.8 | 4.1 | 3.78 | 3.84 |
| Alec Hansen | KC | sp | 23 | .650 | 49 | .265 | 35 | .427 | 35 | .427 | 8.0 | 3.5 | 3.23 | 2.74 |
| J.A. Happ* | ChN | sp | 35 | .610 | 486 | .278 | 300 | .381 | 304 | .386 | 68.6 | 3.2 | 2.95 | 2.81 |
| Blaine Hardy* | Mil | mr | 31 | .668 | 243 | .305 | 143 | .406 | 144 | .409 | 35.1 | 3.7 | 3.38 | 3.47 |
| Will Harris | Det | mr | 33 | .800 | 112 | .375 | 96 | .490 | 100 | .510 | 29.6 | 5.9 | 5.25 | 4.83 |
| Hunter Harvey | Tex | sp | 23 | .824 | 280 | .339 | 268 | .527 | 271 | .532 | 78.4 | 6.2 | 5.62 | 5.57 |
| Matt Harvey | | sp | 29 | .720 | 485 | .303 | 291 | .430 | 302 | .447 | 79.0 | 4.4 | 4.01 | 3.79 |
| Andrew Heaney* | | sp | 27 | .741 | 459 | .307 | 311 | .455 | 319 | .466 | 80.5 | 4.4 | 3.97 | 3.76 |
| Taylor Hearn* | KC | sp | 23 | .798 | 182 | .253 | 165 | .531 | 166 | .534 | 43.7 | 5.5 | 4.99 | 4.88 |
| Ben Heller | ChA | mr | 26 | .870 | 15 | .467 | 12 | .522 | 12 | .522 | 3.1 | 5.0 | 4.47 | 5.73 |
| Jeremy Hellickson | LAN | sp | 31 | .813 | 116 | .328 | 80 | .491 | 83 | .509 | 23.7 | 5.7 | 5.24 | 5.28 |
| Ryan Helsley | Tam | sp | 23 | .952 | 91 | .374 | 76 | .585 | 78 | .600 | 25.0 | 8.1 | 7.23 | 7.32 |
| Heath Hembree | SD | mr | 29 | .648 | 253 | .265 | 160 | .405 | 164 | .415 | 38.2 | 3.5 | 3.21 | 2.89 |
| Kyle Hendricks | Was | sp | 28 | .648 | 641 | .259 | 360 | .395 | 371 | .407 | 82.7 | 3.3 | 2.97 | 2.86 |
| Liam Hendriks | ChN | mr | 29 | .719 | 147 | .374 | 101 | .428 | 102 | .432 | 28.5 | 4.7 | 4.38 | 4.47 |
| Jimmy Herget | Col | mr | 24 | .745 | 233 | .348 | 200 | .471 | 202 | .475 | 54.2 | 5.0 | 4.55 | 4.41 |
| Kevin Herget | LAA | mr | 27 | .592 | 347 | .233 | 193 | .373 | 198 | .383 | 39.1 | 2.7 | 2.41 | 2.40 |
| David Hernandez | Mil | mr | 33 | .871 | 150 | .360 | 122 | .535 | 123 | .539 | 38.7 | 6.9 | 6.18 | 5.87 |
| Felix Hernandez | Tor | sp | 32 | .862 | 291 | .306 | 234 | .537 | 239 | .548 | 68.9 | 6.3 | 5.77 | 6.04 |
| Kelvin Herrera | Det | cl | 28 | .534 | 81 | .235 | 48 | .338 | 50 | .352 | 9.4 | 2.4 | 2.19 | 2.29 |
| Ronald Herrera | Atl | sp | 23 | .774 | 583 | .304 | 399 | .468 | 411 | .482 | 111.7 | 5.2 | 4.66 | 4.96 |
| Trevor Hildenberger | Min | mr | 27 | .687 | 202 | .366 | 126 | .401 | 129 | .411 | 33.5 | 3.9 | 3.51 | 3.50 |
| Rich Hill* | Was | sp | 38 | .689 | 365 | .290 | 299 | .442 | 304 | .449 | 75.5 | 4.2 | 3.79 | 3.59 |
| Yoshihisa Hirano | LAN | mr | 34 | .664 | 197 | .259 | 123 | .417 | 125 | .424 | 28.7 | 3.6 | 3.20 | 3.13 |
| Jeff Hoffman | Sea | sp | 25 | .606 | 316 | .247 | 179 | .374 | 186 | .388 | 40.7 | 3.1 | 2.80 | 2.51 |
| Jonathan Holder | LAA | mr | 25 | .551 | 141 | .262 | 82 | .345 | 84 | .353 | 17.0 | 2.5 | 2.23 | 1.74 |
| Derek Holland* | NYN | sp | 31 | .750 | 35 | .286 | 28 | .491 | 28 | .491 | 7.5 | 5.4 | 4.82 | 3.72 |
| Greg Holland | | cl | 32 | .569 | 121 | .273 | 69 | .354 | 70 | .359 | 14.4 | 2.7 | 2.45 | 2.14 |
| J.J. Hoover | Bal | mr | 30 | .740 | 122 | .262 | 102 | .490 | 103 | .495 | 26.9 | 5.0 | 4.36 | 3.87 |
| Sam Howard* | KC | sp | 25 | 1.273 | 7 | .286 | 10 | .909 | 10 | .909 | 3.6 | 14.0 | 14.73 | 14.75 |
| James Hoyt | Cin | mr | 31 | .584 | 115 | .296 | 73 | .354 | 76 | .369 | 15.5 | 2.7 | 2.38 | 2.48 |
| Chih-Wei Hu | Mia | mr | 24 | .731 | 450 | .293 | 296 | .455 | 300 | .461 | 79.5 | 4.7 | 4.28 | 3.91 |
| Dakota Hudson | KC | sp | 23 | .816 | 355 | .318 | 233 | .492 | 240 | .506 | 68.3 | 5.8 | 5.35 | 5.47 |
| Jared Hughes | Bos | mr | 32 | .783 | 113 | .239 | 80 | .491 | 83 | .509 | 18.9 | 4.4 | 3.92 | 4.39 |
| Tommy Hunter | Phi | mr | 31 | .637 | 151 | .311 | 79 | .378 | 80 | .383 | 19.9 | 3.5 | 3.20 | 2.81 |
| Raisel Iglesias | | cl | 28 | .515 | 233 | .227 | 109 | .313 | 113 | .325 | 20.0 | 2.0 | 1.83 | 1.89 |
| Gregory Infante | Cin | mr | 30 | .604 | 69 | .304 | 35 | .343 | 37 | .363 | 8.4 | 3.1 | 2.85 | 3.10 |
| Luke Jackson | KC | mr | 26 | .641 | 521 | .267 | 320 | .393 | 330 | .405 | 74.0 | 3.4 | 3.04 | 3.24 |
| Kenley Jansen | | cl | 30 | .633 | 123 | .325 | 102 | .405 | 103 | .409 | 22.5 | 3.2 | 2.91 | 2.78 |
| Jeremy Jeffress | Atl | mr | 30 | .743 | 299 | .321 | 188 | .435 | 197 | .456 | 48.4 | 4.3 | 3.87 | 4.48 |
| Dan Jennings* | Was | mr | 31 | .699 | 198 | .308 | 126 | .433 | 126 | .433 | 28.5 | 3.7 | 3.38 | 3.92 |
| Joe Jimenez | KC | mr | 23 | .710 | 225 | .302 | 154 | .434 | 160 | .451 | 39.7 | 4.2 | 3.77 | 3.71 |
| Brian Johnson* | Mil | sp | 27 | .757 | 185 | .243 | 126 | .474 | 129 | .485 | 33.6 | 4.9 | 4.46 | 4.25 |
| Connor Jones | Mil | sp | 23 | 1.296 | 14 | .214 | 21 | .913 | 21 | .913 | 7.6 | 14.7 | 13.26 | 13.56 |
| Nate Jones | Was | mr | 32 | .585 | 129 | .271 | 84 | .362 | 87 | .375 | 17.4 | 2.7 | 2.39 | 2.24 |
| Jake Junis | LAN | sp | 25 | .727 | 484 | .300 | 320 | .441 | 330 | .455 | 86.4 | 4.5 | 4.13 | 3.97 |
| Tommy Kahnle | LAA | mr | 28 | .541 | 92 | .326 | 60 | .335 | 61 | .341 | 11.9 | 2.4 | 2.17 | 2.03 |
| Keone Kela | | mr | 25 | .468 | 167 | .222 | 99 | .310 | 100 | .313 | 15.1 | 1.5 | 1.41 | 1.18 |
| Brad Keller | | sp | 22 | .785 | 208 | .274 | 140 | .490 | 143 | .500 | 36.5 | 4.9 | 4.49 | 4.81 |
| Mitch Keller | | sp | 22 | .985 | 164 | .366 | 135 | .611 | 136 | .615 | 49.0 | 9.5 | 8.63 | 7.79 |
| Joe Kelly | Mil | mr | 30 | .578 | 217 | .300 | 119 | .350 | 119 | .350 | 24.1 | 2.5 | 2.26 | 2.31 |
| Brett Kennedy | Cin | sp | 23 | .746 | 15 | .200 | 13 | .500 | 13 | .500 | 3.4 | 5.4 | 4.86 | 4.78 |
| Ian Kennedy | Hou | sp | 33 | .729 | 488 | .258 | 360 | .471 | 365 | .477 | 86.8 | 4.2 | 3.79 | 3.84 |
| Clayton Kershaw* | | sp | 30 | .614 | 352 | .264 | 244 | .400 | 247 | .405 | 50.7 | 2.9 | 2.60 | 2.19 |
| Dallas Keuchel* | ChN | sp | 30 | .629 | 619 | .263 | 349 | .388 | 355 | .395 | 75.8 | 3.0 | 2.77 | 2.80 |
| Franklyn Kilome | | sp | 23 | .790 | 117 | .291 | 87 | .470 | 93 | .503 | 25.4 | 5.6 | 5.01 | 5.27 |
| Craig Kimbrel | Tor | cl | 30 | .592 | 119 | .244 | 112 | .397 | 114 | .404 | 23.5 | 3.1 | 2.79 | 2.82 |
| Nick Kingham | Hou | sp | 26 | .705 | 462 | .275 | 252 | .417 | 264 | .436 | 67.1 | 4.1 | 3.78 | 3.71 |
| Brandon Kintzler | Col | cl | 33 | .934 | 281 | .384 | 201 | .548 | 207 | .564 | 70.3 | 8.2 | 7.52 | 7.83 |
| Andrew Kittredge | Mia | mr | 28 | .681 | 171 | .327 | 104 | .414 | 104 | .414 | 24.0 | 3.5 | 3.14 | 2.97 |
| Corey Kluber | SF | sp | 32 | .577 | 557 | .289 | 323 | .356 | 327 | .360 | 69.1 | 2.7 | 2.43 | 2.09 |
| Corey Knebel | | cl | 26 | .637 | 107 | .336 | 101 | .421 | 101 | .421 | 22.0 | 3.4 | 3.09 | 2.88 |
| Tom Koehler | Hou | sp | 32 | .570 | 16 | .188 | 11 | .393 | 11 | .393 | 2.2 | 2.8 | 2.54 | 2.20 |
| George Kontos | | mr | 33 | .707 | 158 | .272 | 107 | .453 | 107 | .453 | 25.6 | 3.9 | 3.55 | 3.45 |
| Chad Kuhl | Col | sp | 25 | .626 | 193 | .254 | 116 | .399 | 118 | .405 | 24.5 | 3.0 | 2.76 | 2.58 |
| Brady Lail | Hou | sp | 24 | .936 | 468 | .310 | 390 | .596 | 397 | .607 | 121.6 | 7.5 | 6.79 | 6.92 |
| Eric Lauer* | Hou | sp | 23 | .883 | 339 | .324 | 299 | .567 | 302 | .573 | 92.8 | 7.1 | 6.52 | 6.05 |
| Derek Law | Mia | mr | 27 | .793 | 238 | .332 | 162 | .478 | 164 | .484 | 44.1 | 5.1 | 4.67 | 5.08 |
| Mike Leake | Cin | sp | 30 | .664 | 654 | .284 | 347 | .397 | 355 | .406 | 84.2 | 3.5 | 3.19 | 2.97 |
| Wade LeBlanc* | Was | mr | 33 | .841 | 33 | .364 | 22 | .478 | 23 | .500 | 6.9 | 6.2 | 5.98 | 6.90 |
| Jose Leclerc | LAA | mr | 24 | .589 | 228 | .215 | 148 | .392 | 149 | .394 | 29.9 | 3.0 | 2.70 | 3.01 |
| Dominic Leone | | mr | 26 | .731 | 89 | .371 | 68 | .450 | 68 | .450 | 18.1 | 4.7 | 4.27 | 4.20 |
| Jon Lester* | | sp | 34 | .574 | 518 | .259 | 285 | .353 | 292 | .362 | 59.4 | 2.6 | 2.33 | 2.15 |
| Artie Lewicki | LAN | sp | 26 | .715 | 365 | .293 | 214 | .434 | 219 | .444 | 56.9 | 4.4 | 4.02 | 3.50 |
| Adam Liberatore* | Phi | mr | 31 | .693 | 211 | .327 | 141 | .425 | 142 | .428 | 33.5 | 3.7 | 3.40 | 3.55 |
| Zack Littell | Tam | sp | 22 | .710 | 70 | .257 | 40 | .408 | 44 | .449 | 11.3 | 4.5 | 4.22 | 4.45 |
| Walker Lockett | ChA | sp | 24 | .987 | 54 | .259 | 51 | .662 | 51 | .662 | 15.5 | 7.9 | 7.22 | 6.65 |
| Boone Logan* | LAN | mr | 33 | .785 | 16 | .438 | 15 | .484 | 15 | .484 | 3.8 | 5.4 | 4.86 | 6.97 |
| Jorge Lopez | SD | sp | 25 | .237 | 12 | .083 | 1 | .077 | 2 | .154 | 0.3 | 0.7 | 0.60 | 0.47 |
| Pablo Lopez | Tex | sp | 22 | .862 | 389 | .332 | 278 | .529 | 283 | .538 | 89.2 | 6.9 | 6.32 | 6.15 |
| Reynaldo Lopez | Bos | sp | 24 | .881 | 269 | .346 | 230 | .545 | 235 | .557 | 71.5 | 7.0 | 6.34 | 6.46 |
| Yoan Lopez | Tex | mr | 25 | .971 | 43 | .395 | 40 | .588 | 41 | .603 | 13.7 | 8.4 | 7.55 | 8.07 |
| Michael Lorenzen | | mr | 26 | .772 | 116 | .319 | 70 | .470 | 71 | .477 | 19.5 | 5.0 | 4.64 | 4.41 |
| Aaron Loup* | Cin | mr | 30 | .718 | 102 | .373 | 74 | .430 | 76 | .442 | 20.5 | 4.7 | 4.19 | 4.19 |
| Richard Lovelady* | | mr | 22 | .852 | 173 | .312 | 137 | .531 | 140 | .543 | 39.4 | 6.2 | 6.06 | 6.27 |
| Joey Lucchesi* | Ari | sp | 25 | .787 | 393 | .272 | 298 | .500 | 303 | .508 | 82.9 | 5.4 | 4.90 | 4.85 |
| Seth Lugo | NYN | sp | 28 | .849 | 65 | .292 | 53 | .541 | 53 | .541 | 13.5 | 5.2 | 4.84 | 4.86 |
| Jordan Lyles | Phi | mr | 27 | .535 | 54 | .204 | 26 | .333 | 27 | .346 | 4.3 | 1.9 | 1.73 | 1.89 |
| Lance Lynn | | sp | 31 | .686 | 513 | .269 | 334 | .435 | 337 | .439 | 76.5 | 3.6 | 3.33 | 3.46 |
| Tyler Lyons* | Cin | mr | 30 | .615 | 130 | .262 | 91 | .403 | 92 | .407 | 18.7 | 2.9 | 2.68 | 2.37 |
| Ryan Madson | | cl | 37 | .634 | 227 | .313 | 126 | .374 | 129 | .383 | 32.0 | 3.5 | 3.25 | 3.11 |
| Kenta Maeda | Min | sp | 30 | .653 | 520 | .275 | 301 | .405 | 306 | .412 | 67.6 | 3.2 | 2.93 | 2.71 |
| Tyler Mahle | Tam | sp | 23 | .750 | 514 | .296 | 363 | .468 | 373 | .481 | 92.8 | 4.4 | 4.07 | 4.09 |
| Kazuhisa Makita | | mr | 33 | .606 | 287 | .272 | 121 | .346 | 123 | .351 | 27.7 | 2.8 | 2.62 | 2.58 |
| Sean Manaea* | Mil | sp | 26 | .658 | 498 | .259 | 303 | .412 | 310 | .421 | 71.1 | 3.5 | 3.22 | 2.90 |
| Michael Mariot | ChN | mr | 29 | 1.045 | 20 | .450 | 21 | .656 | 21 | .656 | 7.3 | 10.4 | 9.37 | 9.30 |
| German Marquez | Bos | sp | 23 | .773 | 652 | .287 | 453 | .483 | 466 | .497 | 120.7 | 4.9 | 4.45 | 4.33 |
| Francis Martes | Tam | mr | 22 | .608 | 92 | .283 | 57 | .370 | 60 | .390 | 13.5 | 3.3 | 2.93 | 2.66 |
| Cody Martin | SD | sp | 28 | .759 | 347 | .346 | 230 | .456 | 235 | .466 | 63.6 | 4.8 | 4.36 | 4.00 |
| Kyle Martin | SD | mr | 27 | .808 | 261 | .276 | 213 | .516 | 216 | .523 | 62.2 | 6.1 | 5.47 | 5.46 |
| Carlos Martinez | Sea | sp | 26 | .741 | 280 | .329 | 194 | .455 | 197 | .462 | 52.8 | 4.8 | 4.29 | 4.03 |
| Phil Maton | ChN | mr | 25 | .781 | 120 | .308 | 90 | .492 | 91 | .497 | 24.0 | 5.0 | 4.53 | 4.64 |
| Steven Matz* | | sp | 27 | .701 | 512 | .270 | 326 | .436 | 335 | .448 | 78.7 | 3.9 | 3.50 | 3.34 |
| Brandon Maurer | Tam | cl | 27 | .000 | 1 | .000 | 0 | .000 | 0 | .000 | 0.0 | 0.0 | 0.00 | 0.00 |
| Trevor May | Sea | mr | 28 | .736 | 51 | .275 | 38 | .469 | 39 | .481 | 9.4 | 4.3 | 3.87 | 3.95 |
| Mike Mayers | StL | sp | 26 | .865 | 131 | .313 | 104 | .539 | 106 | .549 | 32.2 | 7.1 | 6.31 | 6.22 |
| Cory Mazzoni | NYN | mr | 28 | .791 | 169 | .349 | 116 | .475 | 118 | .484 | 36.8 | 6.1 | 5.53 | 5.16 |
| Zach McAllister | Sea | mr | 30 | .638 | 263 | .300 | 160 | .390 | 163 | .398 | 39.8 | 3.7 | 3.36 | 3.17 |
| Brandon McCarthy | SF | sp | 34 | .783 | 161 | .261 | 107 | .489 | 110 | .502 | 28.7 | 4.9 | 4.42 | 4.26 |
| Lance McCullers | | sp | 24 | .631 | 338 | .302 | 219 | .387 | 223 | .394 | 49.6 | 3.2 | 2.86 | 2.97 |
| T.J. McFarland* | Bos | mr | 29 | .871 | 59 | .339 | 44 | .543 | 44 | .543 | 11.9 | 5.7 | 4.92 | 5.89 |
| Jake McGee* | Tor | mr | 31 | .639 | 237 | .325 | 135 | .378 | 137 | .384 | 32.0 | 3.3 | 2.98 | 3.09 |
| Kyle McGrath* | | mr | 25 | .606 | 153 | .281 | 86 | .366 | 89 | .379 | 18.8 | 2.8 | 2.55 | 2.44 |
| Collin McHugh | Cin | sp | 31 | .705 | 551 | .299 | 356 | .427 | 365 | .438 | 92.8 | 4.2 | 3.81 | 3.76 |
| Ryan Meisinger | Cin | mr | 24 | .805 | 48 | .333 | 42 | .500 | 42 | .500 | 12.7 | 6.7 | 6.41 | 6.91 |
| Adalberto Mejia* | Min | sp | 25 | .671 | 70 | .243 | 42 | .429 | 42 | .429 | 9.7 | 3.6 | 3.36 | 3.40 |
| Mark Melancon | Was | cl | 33 | .594 | 118 | .305 | 59 | .345 | 61 | .357 | 13.3 | 2.8 | 2.51 | 2.09 |
| Keury Mella | Sea | sp | 24 | .815 | 242 | .281 | 170 | .507 | 172 | .513 | 48.8 | 5.7 | 5.21 | 5.16 |
| Yohander Mendez* | KC | sp | 23 | .740 | 238 | .252 | 164 | .471 | 166 | .477 | 40.6 | 4.3 | 3.91 | 4.13 |
| Daniel Mengden | Col | sp | 25 | .666 | 183 | .322 | 109 | .389 | 112 | .400 | 27.7 | 3.7 | 3.38 | 3.57 |
| Keynan Middleton | Bal | mr | 24 | .971 | 42 | .429 | 42 | .618 | 42 | .618 | 14.6 | 9.6 | 8.66 | 7.58 |
| Miles Mikolas | Bos | sp | 29 | .697 | 607 | .252 | 375 | .438 | 386 | .451 | 87.3 | 3.7 | 3.35 | 3.33 |
| Wade Miley* | SD | sp | 31 | .845 | 27 | .259 | 20 | .526 | 20 | .526 | 5.3 | 5.3 | 4.97 | 4.48 |
| Andrew Miller* | Det | mr | 33 | .506 | 62 | .290 | 35 | .299 | 37 | .316 | 6.9 | 2.0 | 1.83 | 1.58 |
| Jared Miller* | Phi | mr | 24 | .736 | 155 | .323 | 132 | .471 | 133 | .475 | 34.1 | 4.8 | 4.36 | 4.54 |
| Justin Miller | KC | mr | 31 | .571 | 38 | .263 | 21 | .356 | 21 | .356 | 3.8 | 2.2 | 2.03 | 2.57 |
| Shelby Miller | Atl | sp | 27 | .514 | 24 | .167 | 9 | .333 | 9 | .333 | 1.8 | 2.3 | 2.07 | 1.20 |
| Alec Mills | | sp | 26 | .712 | 455 | .303 | 245 | .417 | 253 | .431 | 67.1 | 4.3 | 3.92 | 3.87 |
| Mike Minor* | ChN | mr | 30 | .678 | 478 | .287 | 334 | .433 | 336 | .435 | 78.1 | 3.7 | 3.39 | 3.07 |
| A.J. Minter* | Was | mr | 24 | .749 | 117 | .350 | 125 | .484 | 127 | .492 | 30.6 | 4.7 | 4.25 | 4.89 |
| Ariel Miranda* | StL | sp | 29 | .659 | 98 | .245 | 62 | .413 | 63 | .420 | 14.1 | 3.5 | 3.24 | 3.57 |
| Bryan Mitchell | Pit | mr | 27 | .747 | 129 | .333 | 82 | .451 | 83 | .456 | 22.9 | 4.9 | 4.41 | 4.53 |
| Marcos Molina | NYA | sp | 23 | .796 | 260 | .335 | 178 | .485 | 180 | .490 | 53.5 | 5.8 | 5.24 | 5.14 |
| Frankie Montas | ChN | mr | 25 | .709 | 401 | .297 | 300 | .442 | 307 | .452 | 78.5 | 4.5 | 4.12 | 4.03 |
| Jordan Montgomery* | ChA | sp | 25 | .661 | 94 | .266 | 71 | .438 | 71 | .438 | 16.5 | 3.7 | 3.52 | 3.03 |
| Mike Montgomery* | Sea | mr | 28 | .640 | 578 | .263 | 342 | .399 | 349 | .407 | 76.0 | 3.2 | 2.95 | 2.78 |
| Andrew Moore | Mil | sp | 24 | .900 | 75 | .333 | 52 | .553 | 52 | .553 | 17.7 | 7.6 | 6.82 | 6.27 |
| Matt Moore* | Tam | sp | 29 | .719 | 399 | .256 | 294 | .464 | 302 | .476 | 73.0 | 4.4 | 3.99 | 3.72 |
| Reyes Moronta | NYA | mr | 25 | .708 | 74 | .311 | 71 | .447 | 74 | .465 | 18.1 | 4.4 | 3.97 | 4.17 |
| Akeel Morris | StL | mr | 25 | .652 | 133 | .271 | 99 | .418 | 101 | .426 | 23.1 | 3.8 | 3.38 | 3.57 |
| Brandon Morrow | Atl | mr | 33 | .660 | 237 | .321 | 137 | .390 | 140 | .399 | 31.6 | 3.3 | 3.02 | 3.17 |
| Charlie Morton | | sp | 34 | .715 | 483 | .286 | 329 | .433 | 349 | .460 | 82.4 | 4.0 | 3.63 | 3.72 |
| Gabriel Moya* | KC | mr | 23 | .693 | 221 | .303 | 163 | .438 | 165 | .444 | 39.1 | 3.9 | 3.57 | 3.47 |
| Peter Moylan | NYN | mr | 39 | .799 | 66 | .333 | 44 | .484 | 45 | .495 | 10.5 | 4.3 | 3.91 | 4.50 |
| Jose Mujica | Atl | sp | 22 | .822 | 666 | .287 | 454 | .507 | 465 | .520 | 130.4 | 5.7 | 5.18 | 5.11 |
| Joe Musgrove | ChA | sp | 25 | .693 | 318 | .255 | 207 | .444 | 210 | .451 | 49.2 | 3.8 | 3.52 | 3.11 |
| Nick Neidert | Hou | sp | 21 | .759 | 526 | .279 | 323 | .469 | 331 | .481 | 89.7 | 4.9 | 4.48 | 4.02 |
| Jimmy Nelson | SD | sp | 29 | .611 | 16 | .250 | 9 | .391 | 9 | .391 | 2.0 | 3.6 | 3.26 | 3.29 |
| Hector Neris | Phi | cl | 29 | .687 | 75 | .333 | 55 | .417 | 56 | .424 | 14.1 | 4.0 | 3.64 | 3.60 |
| Pat Neshek | Phi | mr | 37 | .448 | 62 | .226 | 26 | .271 | 27 | .281 | 4.6 | 1.6 | 1.43 | 1.04 |
| Dovydas Neverauskas | Oak | mr | 25 | .974 | 15 | .400 | 11 | .550 | 11 | .550 | 3.4 | 7.1 | 6.42 | 7.27 |
| Sean Newcomb* | Oak | sp | 25 | .657 | 353 | .286 | 239 | .409 | 246 | .421 | 57.7 | 3.8 | 3.46 | 3.64 |
| Juan Nicasio | NYA | mr | 31 | .636 | 184 | .255 | 118 | .405 | 120 | .412 | 25.5 | 3.1 | 2.80 | 2.77 |
| Aaron Nola | Phi | sp | 25 | .698 | 579 | .306 | 369 | .430 | 375 | .437 | 92.9 | 3.9 | 3.53 | 3.27 |
| Bud Norris | NYN | cl | 33 | .747 | 438 | .274 | 326 | .464 | 340 | .484 | 88.8 | 4.8 | 4.39 | 4.20 |
| Ivan Nova | Mil | sp | 31 | .645 | 513 | .257 | 277 | .395 | 283 | .403 | 64.3 | 3.3 | 2.97 | 2.78 |
| Darren O'Day | NYA | mr | 35 | .528 | 63 | .238 | 32 | .323 | 34 | .343 | 5.5 | 1.8 | 1.63 | 1.37 |
| Trevor Oaks | Bal | sp | 25 | .775 | 278 | .284 | 172 | .467 | 178 | .484 | 46.6 | 4.8 | 4.35 | 4.59 |
| Scott Oberg | ChA | mr | 28 | .670 | 176 | .256 | 105 | .418 | 106 | .422 | 26.0 | 3.8 | 3.47 | 3.32 |
| Jake Odorizzi | SD | sp | 28 | .696 | 409 | .279 | 251 | .431 | 254 | .436 | 62.5 | 4.0 | 3.62 | 3.41 |
| Seung-hwan Oh | Pit | cl | 35 | .592 | 158 | .266 | 83 | .352 | 88 | .373 | 18.4 | 2.8 | 2.46 | 2.32 |
| Shohei Ohtani | Tex | sp | 23 | .857 | 69 | .319 | 62 | .564 | 62 | .564 | 19.2 | 7.1 | 6.29 | 4.96 |
| Tyler Olson* | Mia | mr | 28 | .690 | 70 | .314 | 48 | .436 | 48 | .436 | 11.2 | 3.7 | 3.41 | 2.77 |
| Roberto Osuna | Mia | cl | 23 | .416 | 100 | .210 | 41 | .250 | 43 | .262 | 6.6 | 1.3 | 1.17 | 1.03 |
| Corey Oswalt | | sp | 24 | .730 | 332 | .304 | 213 | .441 | 219 | .453 | 58.3 | 4.6 | 4.15 | 3.88 |
| Dan Otero | | mr | 33 | .710 | 318 | .302 | 171 | .423 | 172 | .426 | 43.3 | 3.9 | 3.55 | 3.60 |
| Adam Ottavino | Pit | mr | 32 | .675 | 15 | .200 | 9 | .429 | 9 | .429 | 2.3 | 4.1 | 3.72 | 3.57 |
| Henry Owens* | Atl | sp | 25 | .844 | 483 | .284 | 477 | .547 | 482 | .553 | 134.2 | 6.3 | 5.77 | 6.13 |
| Emilio Pagan | NYN | mr | 27 | .845 | 341 | .334 | 283 | .520 | 291 | .535 | 87.3 | 6.6 | 5.89 | 5.99 |
| Blake Parker | LAA | mr | 33 | .471 | 93 | .269 | 50 | .292 | 51 | .298 | 9.5 | 1.9 | 1.70 | 1.38 |
| David Paulino | | sp | 24 | .659 | 82 | .280 | 52 | .413 | 53 | .421 | 11.3 | 3.2 | 2.95 | 2.95 |
| James Paxton* | Sea | sp | 29 | .599 | 429 | .298 | 253 | .369 | 255 | .372 | 54.3 | 2.8 | 2.56 | 2.45 |
| James Pazos* | | mr | 27 | .700 | 192 | .354 | 147 | .426 | 152 | .441 | 35.8 | 3.9 | 3.48 | 3.69 |
| Brad Peacock | | sp | 30 | .673 | 252 | .258 | 186 | .437 | 187 | .439 | 42.6 | 3.7 | 3.38 | 3.39 |
| Freddy Peralta | Oak | sp | 22 | .876 | 103 | .350 | 101 | .555 | 104 | .571 | 30.6 | 6.8 | 6.41 | 6.08 |
| Luis Perdomo | LAA | sp | 25 | .757 | 336 | .307 | 209 | .460 | 212 | .467 | 57.7 | 4.8 | 4.39 | 4.27 |
| Cionel Perez* | NYN | sp | 22 | .783 | 375 | .312 | 241 | .463 | 251 | .483 | 68.3 | 5.1 | 4.62 | 4.91 |
| Martin Perez* | LAN | sp | 27 | .638 | 326 | .261 | 180 | .390 | 183 | .397 | 39.1 | 3.1 | 2.80 | 3.04 |
| Oliver Perez* | Min | mr | 36 | .808 | 57 | .386 | 54 | .505 | 55 | .514 | 15.3 | 5.7 | 5.15 | 5.50 |
| Dillon Peters* | Cle | sp | 25 | .769 | 232 | .293 | 157 | .486 | 158 | .489 | 40.3 | 4.7 | 4.30 | 4.32 |
| Yusmeiro Petit | Was | mr | 33 | .675 | 175 | .286 | 130 | .433 | 130 | .433 | 31.3 | 3.9 | 3.50 | 3.39 |
| Jake Petricka | ChN | mr | 30 | .727 | 274 | .332 | 151 | .417 | 156 | .431 | 43.2 | 4.7 | 4.16 | 4.10 |
| Nick Pivetta | | sp | 25 | .689 | 427 | .274 | 280 | .432 | 284 | .438 | 68.0 | 3.9 | 3.55 | 3.46 |
| Adam Plutko | Tex | sp | 26 | .779 | 242 | .310 | 170 | .491 | 172 | .497 | 48.5 | 5.4 | 4.95 | 4.29 |
| Drew Pomeranz* | SD | sp | 29 | .739 | 219 | .306 | 171 | .480 | 171 | .480 | 40.4 | 4.1 | 3.80 | 3.57 |
| Daniel Poncedeleon | StL | sp | 26 | .886 | 27 | .222 | 34 | .607 | 34 | .607 | 9.4 | 7.1 | 6.36 | 7.06 |
| Rick Porcello | Bal | sp | 29 | .768 | 598 | .289 | 424 | .489 | 429 | .495 | 108.9 | 4.6 | 4.20 | 4.08 |
| Bobby Poyner* | LAN | mr | 25 | .740 | 252 | .294 | 196 | .472 | 199 | .480 | 49.9 | 4.5 | 4.18 | 4.03 |
| Ryan Pressly | Min | mr | 29 | .687 | 245 | .298 | 165 | .426 | 168 | .434 | 39.1 | 3.7 | 3.35 | 3.44 |
| David Price* | Tor | sp | 32 | .656 | 610 | .295 | 377 | .403 | 382 | .409 | 90.6 | 3.5 | 3.20 | 3.04 |
| Jose Quintana* | | sp | 29 | .619 | 544 | .281 | 313 | .381 | 318 | .387 | 71.3 | 3.1 | 2.85 | 2.58 |
| Tanner Rainey | Atl | mr | 25 | .779 | 204 | .270 | 188 | .509 | 190 | .515 | 49.0 | 5.4 | 4.84 | 5.05 |
| Erasmo Ramirez | ChA | mr | 28 | .578 | 142 | .246 | 70 | .348 | 72 | .358 | 16.0 | 2.8 | 2.61 | 2.34 |
| A.J. Ramos | Min | cl | 31 | .453 | 45 | .200 | 27 | .307 | 27 | .307 | 3.6 | 1.3 | 1.25 | 1.35 |
| Edubray Ramos | Tor | mr | 25 | .819 | 203 | .340 | 177 | .527 | 177 | .527 | 48.5 | 5.6 | 5.10 | 5.04 |
| Robbie Ray* | Oak | sp | 26 | .665 | 258 | .310 | 219 | .431 | 222 | .437 | 50.0 | 3.5 | 3.19 | 2.92 |
| Addison Reed | Cin | cl | 29 | .661 | 171 | .333 | 92 | .383 | 93 | .387 | 22.5 | 3.4 | 3.00 | 2.88 |
| Cody Reed* | Col | sp | 25 | .746 | 311 | .277 | 219 | .458 | 228 | .477 | 57.4 | 4.8 | 4.24 | 4.73 |
| Clayton Richard* | LAA | sp | 34 | .660 | 359 | .262 | 201 | .401 | 208 | .415 | 47.2 | 3.4 | 3.07 | 2.96 |
| Garrett Richards | Bal | sp | 30 | .753 | 239 | .310 | 179 | .476 | 181 | .481 | 44.1 | 4.4 | 3.99 | 4.25 |
| Trevor Richards | | sp | 25 | .809 | 484 | .287 | 379 | .511 | 389 | .524 | 107.9 | 5.7 | 5.17 | 5.07 |
| Felipe Rivero* | | cl | 26 | .560 | 163 | .294 | 97 | .340 | 101 | .354 | 20.3 | 2.6 | 2.28 | 2.09 |
| Tanner Roark | Min | sp | 31 | .790 | 547 | .300 | 384 | .493 | 389 | .499 | 108.0 | 5.4 | 4.85 | 4.71 |
| David Robertson | Mil | cl | 33 | .668 | 167 | .353 | 134 | .417 | 135 | .421 | 33.6 | 3.9 | 3.63 | 3.48 |
| Carlos Rodon* | Col | sp | 25 | .791 | 280 | .350 | 225 | .483 | 229 | .491 | 62.7 | 5.3 | 4.85 | 5.10 |
| Dereck Rodriguez | NYA | sp | 26 | .780 | 23 | .304 | 13 | .464 | 13 | .464 | 3.9 | 5.5 | 4.95 | 5.78 |
| Eduardo Rodriguez* | Col | sp | 25 | .723 | 267 | .330 | 187 | .432 | 193 | .446 | 51.3 | 4.6 | 4.23 | 4.03 |
| Richard Rodriguez | Mia | mr | 28 | .994 | 47 | .213 | 46 | .657 | 48 | .686 | 12.8 | 7.0 | 6.46 | 7.05 |
| Chaz Roe | | mr | 31 | .715 | 109 | .349 | 79 | .432 | 82 | .448 | 21.1 | 4.4 | 3.97 | 3.79 |
| Josh Rogers* | | sp | 23 | .737 | 350 | .246 | 224 | .456 | 235 | .479 | 57.1 | 4.2 | 3.89 | 3.83 |
| Taylor Rogers* | Cle | mr | 27 | .717 | 247 | .300 | 157 | .439 | 161 | .450 | 38.1 | 4.0 | 3.63 | 3.69 |
| Sal Romano | Col | sp | 24 | .824 | 350 | .334 | 265 | .514 | 267 | .517 | 77.5 | 6.0 | 5.41 | 5.01 |
| Fernando Romero | NYN | sp | 23 | .802 | 48 | .313 | 34 | .479 | 36 | .507 | 10.3 | 5.9 | 5.42 | 5.65 |
| Sergio Romo | Bal | mr | 35 | .775 | 214 | .257 | 168 | .514 | 169 | .517 | 42.0 | 4.7 | 4.36 | 3.99 |
| Hector Rondon | | mr | 30 | .620 | 177 | .288 | 111 | .383 | 114 | .393 | 26.5 | 3.3 | 3.05 | 2.76 |
| Trevor Rosenthal | SD | cl | 28 | .347 | 5 | .200 | 2 | .222 | 2 | .222 | 0.3 | 1.1 | 0.97 | 1.08 |
| Joe Ross | Mia | sp | 25 | .690 | 86 | .291 | 49 | .412 | 50 | .420 | 11.8 | 3.6 | 3.26 | 3.28 |
| Robbie Ross Jr.* | SD | mr | 29 | .689 | 168 | .268 | 111 | .413 | 119 | .442 | 26.4 | 3.6 | 3.28 | 3.62 |
| Ben Rowen | ChN | mr | 29 | .688 | 97 | .278 | 57 | .416 | 59 | .431 | 11.9 | 3.1 | 2.77 | 3.19 |
| Nick Rumbelow | | mr | 26 | .711 | 278 | .302 | 203 | .447 | 207 | .456 | 53.1 | 4.5 | 4.08 | 3.88 |
| Chris Rusin* | KC | mr | 31 | .644 | 228 | .228 | 141 | .417 | 142 | .420 | 27.1 | 2.7 | 2.51 | 2.67 |
| Hyun-jin Ryu* | LAN | sp | 31 | .629 | 248 | .274 | 127 | .379 | 128 | .382 | 32.1 | 3.5 | 3.21 | 2.71 |
| Marc Rzepczynski* | Pit | mr | 32 | .673 | 70 | .300 | 52 | .433 | 52 | .433 | 10.4 | 3.2 | 2.95 | 3.58 |
| CC Sabathia* | Phi | sp | 37 | .747 | 83 | .241 | 71 | .490 | 72 | .497 | 17.5 | 4.7 | 4.30 | 4.19 |
| Chris Sale* | Det | sp | 29 | .435 | 453 | .210 | 193 | .266 | 200 | .276 | 31.7 | 1.4 | 1.30 | 1.06 |
| Jeff Samardzija | Det | sp | 33 | .801 | 169 | .361 | 121 | .475 | 126 | .494 | 36.8 | 5.7 | 5.20 | 5.28 |
| Aaron Sanchez | | sp | 25 | .702 | 369 | .306 | 226 | .425 | 229 | .430 | 58.0 | 4.2 | 3.80 | 3.85 |
| Dennis Santana | Ari | sp | 22 | .658 | 120 | .258 | 78 | .400 | 81 | .415 | 18.4 | 3.5 | 3.16 | 3.47 |
| Edgar Santana | ChA | mr | 26 | .789 | 111 | .288 | 83 | .500 | 84 | .506 | 21.8 | 5.1 | 4.60 | 5.14 |
| Ervin Santana | Min | sp | 35 | .706 | 62 | .339 | 35 | .422 | 35 | .422 | 9.7 | 4.4 | 4.15 | 3.78 |
| Max Scherzer | Phi | sp | 33 | .600 | 481 | .279 | 325 | .382 | 330 | .388 | 68.2 | 2.8 | 2.56 | 2.38 |
| Tanner Scott* | NYN | sp | 23 | .778 | 10 | .200 | 10 | .556 | 10 | .556 | 2.3 | 4.8 | 4.65 | 3.41 |
| Antonio Senzatela | NYA | sp | 23 | .583 | 562 | .238 | 281 | .362 | 285 | .367 | 57.8 | 2.6 | 2.36 | 2.13 |
| Luis Severino | Tex | sp | 24 | .639 | 548 | .316 | 340 | .393 | 343 | .397 | 80.9 | 3.4 | 3.08 | 2.77 |
| Paul Sewald | | mr | 28 | .678 | 159 | .333 | 103 | .409 | 105 | .417 | 26.6 | 4.0 | 3.56 | 3.47 |
| Bryan Shaw | Was | mr | 30 | .580 | 199 | .291 | 101 | .345 | 102 | .348 | 21.1 | 2.5 | 2.34 | 2.34 |
| Justus Sheffield* | Ari | sp | 22 | .758 | 453 | .283 | 349 | .478 | 357 | .489 | 89.5 | 4.7 | 4.31 | 4.58 |
| Chandler Shepherd | Atl | mr | 25 | .778 | 281 | .256 | 229 | .512 | 231 | .517 | 57.2 | 4.8 | 4.44 | 4.26 |
| Jimmie Sherfy | Col | mr | 26 | .863 | 217 | .332 | 220 | .560 | 222 | .565 | 65.0 | 6.6 | 6.15 | 5.83 |
| Chasen Shreve* | Tam | mr | 27 | .661 | 156 | .276 | 128 | .428 | 130 | .435 | 27.7 | 3.4 | 3.10 | 3.35 |
| Lucas Sims | Hou | sp | 24 | .674 | 283 | .297 | 212 | .432 | 213 | .434 | 48.6 | 3.6 | 3.35 | 3.48 |
| Tyler Skaggs* | StL | sp | 26 | .612 | 377 | .236 | 191 | .360 | 206 | .389 | 46.8 | 3.2 | 2.93 | 2.72 |
| Carson Smith | Sea | mr | 28 | .679 | 70 | .314 | 43 | .406 | 44 | .415 | 11.2 | 4.0 | 3.69 | 3.61 |
| Joe Smith | Mil | mr | 34 | .795 | 224 | .317 | 148 | .473 | 155 | .495 | 42.9 | 5.3 | 4.87 | 4.98 |
| Will Smith* | | mr | 28 | .635 | 104 | .327 | 68 | .386 | 69 | .392 | 14.4 | 2.9 | 2.65 | 2.89 |
| Josh Smoker* | LAA | mr | 29 | .566 | 63 | .302 | 35 | .337 | 36 | .346 | 7.5 | 2.5 | 2.31 | 2.25 |
| Blake Snell* | Tor | sp | 25 | .653 | 422 | .294 | 294 | .408 | 299 | .415 | 66.7 | 3.4 | 3.10 | 3.23 |
| D.J. Snelten* | | mr | 26 | .576 | 132 | .205 | 71 | .368 | 73 | .378 | 14.2 | 2.5 | 2.38 | 2.19 |
| Sammy Solis* | Bal | mr | 29 | .824 | 188 | .271 | 167 | .537 | 168 | .540 | 44.1 | 5.5 | 5.15 | 5.66 |
| Joakim Soria | Pit | mr | 34 | .682 | 155 | .335 | 103 | .414 | 105 | .422 | 24.1 | 3.5 | 3.14 | 3.21 |
| Mike Soroka | Ari | sp | 20 | .799 | 158 | .297 | 117 | .500 | 120 | .513 | 34.2 | 5.8 | 5.26 | 4.79 |
| Craig Stammen | Mil | mr | 34 | .750 | 178 | .298 | 134 | .480 | 135 | .484 | 34.1 | 4.7 | 4.19 | 4.17 |
| Ryne Stanek | Oak | mr | 26 | .809 | 81 | .272 | 66 | .528 | 66 | .528 | 18.6 | 6.0 | 5.57 | 5.73 |
| Josh Staumont | | sp | 24 | .796 | 197 | .335 | 170 | .493 | 172 | .499 | 49.6 | 6.2 | 5.63 | 5.87 |
| Drew Steckenrider | NYA | mr | 27 | .762 | 195 | .333 | 172 | .485 | 176 | .496 | 41.9 | 4.4 | 3.95 | 3.97 |
| Jackson Stephens | Tam | sp | 24 | .633 | 100 | .250 | 57 | .390 | 59 | .404 | 13.6 | 3.3 | 3.09 | 2.74 |
| Jordan Stephens | ChA | sp | 25 | .721 | 9 | .333 | 8 | .471 | 8 | .471 | 2.0 | 6.1 | 6.15 | 9.21 |
| Dan Straily | Mil | sp | 29 | .797 | 232 | .259 | 184 | .515 | 186 | .521 | 49.6 | 5.3 | 4.84 | 4.55 |
| Stephen Strasburg | NYA | sp | 29 | .612 | 356 | .281 | 223 | .386 | 225 | .389 | 49.5 | 3.0 | 2.75 | 2.39 |
| Chris Stratton | Tor | sp | 27 | .761 | 286 | .322 | 194 | .454 | 203 | .475 | 52.8 | 4.8 | 4.38 | 4.69 |
| Hunter Strickland | Ari | mr | 29 | .729 | 167 | .269 | 124 | .471 | 125 | .475 | 29.1 | 4.1 | 3.69 | 3.79 |
| Ross Stripling | Mia | mr | 28 | .644 | 374 | .259 | 219 | .394 | 225 | .405 | 50.3 | 3.3 | 2.94 | 2.90 |
| Marcus Stroman | SD | sp | 27 | .650 | 522 | .293 | 282 | .389 | 285 | .393 | 64.1 | 3.2 | 2.93 | 2.92 |
| Pedro Strop | Tor | mr | 33 | .731 | 177 | .299 | 147 | .473 | 148 | .476 | 35.6 | 4.2 | 3.89 | 4.00 |
| Andrew Suarez* | SF | sp | 25 | .819 | 21 | .286 | 19 | .514 | 20 | .541 | 5.3 | 6.3 | 5.63 | 6.46 |
| Ranger Suarez* | Cle | sp | 22 | .757 | 159 | .283 | 113 | .471 | 116 | .483 | 28.9 | 4.6 | 4.29 | 4.52 |
| Wander Suero | | mr | 26 | .775 | 224 | .286 | 157 | .480 | 160 | .489 | 44.9 | 5.4 | 4.91 | 5.13 |
| Brent Suter* | LAN | sp | 28 | .856 | 189 | .376 | 147 | .525 | 149 | .532 | 42.3 | 5.9 | 5.19 | 5.32 |
| Anthony Swarzak | | mr | 32 | .711 | 95 | .379 | 68 | .422 | 70 | .435 | 19.5 | 4.7 | 4.30 | 4.01 |
| Noah Syndergaard | Det | sp | 25 | .590 | 402 | .291 | 225 | .355 | 230 | .363 | 46.9 | 2.6 | 2.30 | 2.24 |
| Jameson Taillon | Col | sp | 26 | .725 | 552 | .322 | 348 | .437 | 355 | .446 | 96.1 | 4.6 | 4.19 | 3.88 |
| Masahiro Tanaka | LAN | sp | 29 | .592 | 451 | .251 | 247 | .368 | 252 | .375 | 51.6 | 2.7 | 2.47 | 2.27 |
| Dillon Tate | Ari | sp | 24 | 1.070 | 142 | .366 | 135 | .678 | 135 | .678 | 47.5 | 10.5 | 9.39 | 9.26 |
| Julio Teheran | SD | sp | 27 | .728 | 577 | .279 | 375 | .451 | 385 | .463 | 102.7 | 4.7 | 4.23 | 3.79 |
| Ryan Tepera | Mil | mr | 30 | .739 | 97 | .299 | 65 | .451 | 67 | .465 | 17.6 | 4.6 | 4.12 | 4.01 |
| Jake Thompson | NYN | sp | 24 | .759 | 123 | .285 | 89 | .486 | 90 | .492 | 20.3 | 4.0 | 3.71 | 3.80 |
| Tyler Thornburg | Bal | mr | 29 | .523 | 85 | .188 | 53 | .346 | 55 | .359 | 9.9 | 2.3 | 2.03 | 1.72 |
| Trent Thornton | Pit | sp | 24 | .962 | 20 | .350 | 16 | .615 | 16 | .615 | 4.9 | 7.4 | 6.65 | 7.20 |
| Lewis Thorpe* | KC | sp | 22 | .875 | 279 | .294 | 252 | .565 | 255 | .572 | 72.2 | 6.5 | 5.93 | 6.25 |
| Josh Tomlin | Hou | sp | 33 | .596 | 449 | .254 | 215 | .357 | 220 | .365 | 45.3 | 2.6 | 2.38 | 2.33 |
| Touki Toussaint | Tex | sp | 22 | .906 | 343 | .324 | 311 | .577 | 313 | .581 | 99.6 | 7.8 | 7.14 | 6.91 |
| Blake Treinen | | cl | 30 | .567 | 204 | .255 | 115 | .361 | 115 | .361 | 21.2 | 2.3 | 2.18 | 2.15 |
| Andrew Triggs | Was | sp | 29 | .796 | 75 | .320 | 46 | .474 | 48 | .495 | 13.4 | 5.3 | 4.73 | 4.48 |
| Lou Trivino | | mr | 26 | .674 | 250 | .288 | 154 | .401 | 162 | .422 | 40.6 | 4.2 | 3.81 | 4.12 |
| Nick Tropeano | Min | sp | 27 | .647 | 294 | .265 | 164 | .392 | 170 | .407 | 38.3 | 3.3 | 2.98 | 2.76 |
| Sam Tuivailala | StL | mr | 25 | .531 | 111 | .288 | 54 | .316 | 54 | .316 | 10.6 | 2.1 | 1.97 | 1.89 |
| Spencer Turnbull | SD | sp | 25 | 1.111 | 7 | .286 | 7 | .778 | 7 | .778 | 2.5 | 11.3 | 10.15 | 8.13 |
| Duane Underwood | Tex | sp | 23 | .970 | 111 | .387 | 87 | .569 | 90 | .588 | 30.8 | 9.0 | 8.05 | 8.20 |
| Jose Urena | Tam | sp | 26 | .751 | 446 | .260 | 297 | .471 | 306 | .485 | 72.6 | 4.3 | 3.87 | 4.16 |
| Julio Urias* | Oak | sp | 21 | .734 | 67 | .239 | 52 | .491 | 52 | .491 | 12.4 | 4.4 | 4.06 | 4.12 |
| Framber Valdez* | Tex | sp | 24 | .865 | 164 | .354 | 129 | .529 | 131 | .537 | 41.1 | 7.3 | 6.53 | 6.64 |
| Jason Vargas* | Mil | sp | 35 | .836 | 400 | .303 | 305 | .521 | 313 | .535 | 86.4 | 5.7 | 5.12 | 5.04 |
| Vince Velasquez | StL | sp | 26 | .789 | 401 | .304 | 337 | .505 | 340 | .510 | 87.1 | 5.0 | 4.49 | 4.53 |
| Hector Velazquez | SD | sp | 29 | 1.049 | 11 | .273 | 9 | .643 | 10 | .714 | 3.3 | 9.9 | 8.93 | 7.44 |
| Justin Verlander | Pit | sp | 35 | .568 | 562 | .258 | 323 | .358 | 326 | .361 | 68.0 | 2.7 | 2.46 | 2.27 |
| Nick Vincent | StL | mr | 31 | .797 | 124 | .355 | 88 | .489 | 89 | .494 | 24.7 | 5.3 | 4.77 | 4.67 |
| Arodys Vizcaino | Cin | cl | 27 | .738 | 91 | .264 | 68 | .479 | 69 | .486 | 16.2 | 4.1 | 3.82 | 3.63 |
| Michael Wacha | Bos | sp | 26 | .653 | 284 | .261 | 179 | .418 | 180 | .421 | 39.8 | 3.3 | 2.97 | 2.74 |
| Bobby Wahl | Sea | mr | 26 | 1.220 | 15 | .533 | 27 | .730 | 28 | .757 | 10.4 | 17.6 | 15.84 | 19.28 |
| Adam Wainwright | Min | sp | 36 | .823 | 163 | .319 | 106 | .505 | 107 | .510 | 31.5 | 6.0 | 5.32 | 4.97 |
| Adam Warren | Sea | mr | 30 | .690 | 249 | .305 | 158 | .422 | 159 | .425 | 40.9 | 4.2 | 3.76 | 3.56 |
| Tony Watson* | Tor | mr | 33 | .703 | 218 | .266 | 144 | .442 | 147 | .451 | 34.0 | 3.9 | 3.47 | 3.75 |
| Luke Weaver | Cle | sp | 24 | .771 | 385 | .301 | 261 | .478 | 267 | .489 | 70.7 | 4.9 | 4.50 | 4.51 |
| Patrick Weigel | Tex | sp | 23 | .000 | 1 | .000 | 0 | .000 | 0 | .000 | -0.0 | -0.0 | -0.00 | 0.00 |
| Zack Wheeler | Mia | sp | 28 | .747 | 310 | .316 | 213 | .461 | 214 | .463 | 55.0 | 4.6 | 4.21 | 4.49 |
| Forrest Whitley | Atl | sp | 20 | .787 | 328 | .323 | 325 | .502 | 332 | .513 | 90.9 | 5.7 | 5.11 | 5.07 |
| Brad Wieck* | StL | mr | 26 | .790 | 157 | .306 | 169 | .523 | 170 | .526 | 45.2 | 5.8 | 5.21 | 5.49 |
| Taylor Williams | | sp | 26 | .716 | 102 | .225 | 81 | .468 | 83 | .480 | 19.3 | 4.2 | 3.75 | 3.65 |
| Trevor Williams | | sp | 26 | .666 | 276 | .275 | 167 | .408 | 171 | .418 | 40.3 | 3.6 | 3.37 | 3.40 |
| Justin Wilson* | Det | mr | 30 | .695 | 112 | .348 | 91 | .438 | 92 | .442 | 21.9 | 4.0 | 3.59 | 3.72 |
| Dan Winkler | LAN | mr | 28 | .811 | 141 | .340 | 122 | .513 | 125 | .525 | 34.7 | 5.7 | 5.26 | 4.92 |
| Matt Wisler | | sp | 25 | .846 | 257 | .327 | 171 | .517 | 174 | .526 | 52.4 | 6.3 | 5.82 | 5.67 |
| Nick Wittgren | StL | mr | 27 | .736 | 246 | .313 | 162 | .458 | 164 | .463 | 40.1 | 4.1 | 3.70 | 3.45 |
| Alex Wood* | Was | sp | 27 | .667 | 552 | .295 | 349 | .414 | 352 | .418 | 83.9 | 3.7 | 3.37 | 3.18 |
| Brandon Woodruff | ChA | sp | 25 | .742 | 255 | .302 | 173 | .460 | 177 | .471 | 46.5 | 4.7 | 4.25 | 4.00 |
| Ryan Yarbrough* | SD | sp | 26 | .654 | 145 | .283 | 79 | .387 | 82 | .402 | 19.1 | 3.3 | 3.03 | 2.99 |
| Kirby Yates | Bos | mr | 31 | .848 | 133 | .353 | 156 | .553 | 159 | .564 | 44.3 | 6.2 | 5.67 | 5.52 |
| Rob Zastryzny* | LAN | sp | 26 | .817 | 114 | .307 | 93 | .525 | 93 | .525 | 27.6 | 6.5 | 5.93 | 5.58 |
| Brad Ziegler | Pit | cl | 38 | .711 | 192 | .313 | 103 | .407 | 108 | .427 | 27.2 | 4.1 | 3.75 | 3.69 |
| Jordan Zimmermann | Pit | sp | 32 | .652 | 149 | .228 | 86 | .422 | 86 | .422 | 19.5 | 3.4 | 3.14 | 2.45 |
| Start |
| Name | Team | P | Age | GS | CG | CG% | SHO | QS | QS% | RS | RS/G | RL | RLS | RL% | PCH/G | STR% |
| Albert Abreu | NYA | sp | 22 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 18.0 | .500 |
| Domingo Acevedo | Cle | sp | 24 | 11 | 0 | .000 | 0 | 5 | .455 | 38 | 3.5 | 5 | 3 | .600 | 90.8 | .635 |
| Chance Adams | KC | sp | 23 | 11 | 0 | .000 | 0 | 2 | .182 | 31 | 2.8 | 13 | 3 | .231 | 62.9 | .585 |
| Matt Albers | Mil | mr | 35 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 5 | .333 | 18.5 | .633 |
| Sandy Alcantara | Bos | sp | 22 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 28 | 11 | .393 | 22.8 | .565 |
| Scott Alexander* | LAA | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 23 | 5 | .217 | 20.2 | .606 |
| Kolby Allard* | Min | sp | 20 | 4 | 0 | .000 | 0 | 1 | .250 | 24 | 6.0 | 4 | 1 | .250 | 77.4 | .633 |
| Cody Allen | Bal | cl | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 17 | 5 | .294 | 18.9 | .631 |
| Yency Almonte | Tam | sp | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 2 | 1.000 | 37.0 | .568 |
| Dan Altavilla | LAN | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 7 | 3 | .429 | 18.6 | .560 |
| Jose Alvarado* | Ari | mr | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 53 | 21 | .396 | 20.3 | .543 |
| Dario Alvarez* | Phi | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 13 | 7 | .538 | 26.4 | .571 |
| Jose Alvarez* | | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 13 | 3 | .231 | 21.2 | .643 |
| Yadier Alvarez | Tex | sp | 22 | 2 | 0 | .000 | 0 | 0 | .000 | 9 | 4.5 | 15 | 2 | .133 | 26.3 | .588 |
| Chase Anderson | NYN | sp | 30 | 30 | 0 | .000 | 0 | 9 | .300 | 143 | 4.8 | 16 | 5 | .313 | 80.9 | .628 |
| Tyler Anderson* | Bos | sp | 28 | 35 | 1 | .029 | 0 | 14 | .400 | 181 | 5.2 | 17 | 5 | .294 | 93.1 | .616 |
| Matt Andriese | ChN | sp | 28 | 19 | 0 | .000 | 0 | 10 | .526 | 99 | 5.2 | 19 | 0 | .000 | 55.8 | .643 |
| Victor Arano | Tex | mr | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 26 | 6 | .231 | 20.2 | .627 |
| Chris Archer | SD | sp | 29 | 35 | 0 | .000 | 0 | 17 | .486 | 161 | 4.6 | 20 | 4 | .200 | 96.5 | .633 |
| Rogelio Armenteros | Sea | sp | 24 | 28 | 0 | .000 | 0 | 11 | .393 | 128 | 4.6 | 26 | 11 | .423 | 85.4 | .607 |
| Shawn Armstrong | | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 3 | 1.000 | 27.0 | .556 |
| Jake Arrieta | | sp | 32 | 34 | 0 | .000 | 0 | 13 | .382 | 134 | 3.9 | 25 | 5 | .200 | 91.0 | .624 |
| Luis Avilan* | | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 2 | .133 | 17.6 | .605 |
| Pedro Baez | Was | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 2 | .333 | 22.0 | .586 |
| Luke Bard | Atl | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 0 | .000 | 41.0 | .561 |
| Danny Barnes | SF | mr | 28 | 1 | 0 | .000 | 0 | 0 | .000 | 3 | 3.0 | 2 | 0 | .000 | 22.1 | .652 |
| Jacob Barnes | Tor | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 24 | 3 | .125 | 24.5 | .607 |
| Matt Barnes | | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 19 | 4 | .211 | 21.8 | .593 |
| Kyle Barraclough | Was | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 4 | .267 | 21.9 | .564 |
| Aaron Barrett | Atl | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 2 | 1.000 | 30.0 | .628 |
| Jaime Barria | | sp | 21 | 5 | 0 | .000 | 0 | 1 | .200 | 31 | 6.2 | 3 | 1 | .333 | 66.6 | .651 |
| Trevor Bauer | NYA | sp | 27 | 26 | 0 | .000 | 0 | 12 | .462 | 135 | 5.2 | 19 | 6 | .316 | 91.2 | .615 |
| Buddy Baumann* | SF | mr | 30 | 18 | 0 | .000 | 0 | 13 | .722 | 75 | 4.2 | 5 | 0 | .000 | 93.2 | .612 |
| Cam Bedrosian | | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 16 | 3 | .188 | 23.5 | .628 |
| Tyler Beede | NYA | sp | 25 | 9 | 0 | .000 | 0 | 4 | .444 | 27 | 3.0 | 14 | 5 | .357 | 46.5 | .605 |
| Matt Belisle | NYA | mr | 38 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 5 | .333 | 19.9 | .653 |
| Jose Berrios | Cle | sp | 24 | 25 | 0 | .000 | 0 | 15 | .600 | 93 | 3.7 | 11 | 3 | .273 | 96.5 | .624 |
| Dellin Betances | NYA | cl | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 16 | 2 | .125 | 18.8 | .592 |
| Chad Bettis | LAA | sp | 29 | 28 | 0 | .000 | 0 | 18 | .643 | 113 | 4.0 | 11 | 1 | .091 | 89.3 | .651 |
| Joe Biagini | NYN | sp | 28 | 11 | 0 | .000 | 0 | 5 | .455 | 37 | 3.4 | 13 | 2 | .154 | 44.9 | .626 |
| Jesse Biddle* | Col | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 5 | .417 | 21.0 | .592 |
| Shane Bieber | | sp | 23 | 24 | 1 | .042 | 1 | 16 | .667 | 103 | 4.3 | 17 | 3 | .176 | 69.9 | .674 |
| Paul Blackburn | ChA | sp | 24 | 5 | 0 | .000 | 0 | 4 | .800 | 14 | 2.8 | 3 | 2 | .667 | 94.6 | .634 |
| Jerry Blevins* | Sea | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 44 | 5 | .114 | 15.6 | .609 |
| Ryan Borucki* | LAN | sp | 24 | 6 | 0 | .000 | 0 | 1 | .167 | 21 | 3.5 | 9 | 3 | .333 | 40.5 | .619 |
| Matthew Bowman | Min | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 7 | 3 | .429 | 20.1 | .637 |
| Brad Boxberger | LAA | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 0 | .000 | 28.0 | .579 |
| Matt Boyd* | | sp | 27 | 17 | 0 | .000 | 0 | 8 | .471 | 69 | 4.1 | 9 | 1 | .111 | 89.5 | .641 |
| Brad Brach | SD | cl | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 17 | 1 | .059 | 17.2 | .604 |
| Silvino Bracho | | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 2 | .333 | 23.8 | .585 |
| Chasen Bradford | Tam | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 4 | .444 | 20.3 | .650 |
| Archie Bradley | Ari | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 21 | 7 | .333 | 18.2 | .632 |
| Steven Brault* | ChN | sp | 26 | 12 | 0 | .000 | 0 | 6 | .500 | 58 | 4.8 | 8 | 3 | .375 | 48.6 | .614 |
| John Brebbia | | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 3 | .375 | 22.8 | .697 |
| Zach Britton* | | cl | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 1 | .333 | 16.5 | .629 |
| Clay Buchholz | NYN | sp | 33 | 5 | 0 | .000 | 0 | 1 | .200 | 19 | 3.8 | 2 | 0 | .000 | 73.4 | .615 |
| Ryan Buchter* | SF | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 2 | 1.000 | 22.1 | .599 |
| Walker Buehler | Cle | sp | 23 | 15 | 0 | .000 | 0 | 1 | .067 | 54 | 3.6 | 17 | 4 | .235 | 90.3 | .573 |
| Madison Bumgarner* | Tor | sp | 28 | 26 | 1 | .038 | 0 | 11 | .423 | 133 | 5.1 | 13 | 5 | .385 | 86.8 | .668 |
| Aaron Bummer* | | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 0 | .000 | 22.0 | .561 |
| Dylan Bundy | LAA | sp | 25 | 35 | 2 | .057 | 0 | 20 | .571 | 133 | 3.8 | 22 | 10 | .455 | 92.2 | .652 |
| Nick Burdi | LAA | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 1 | 0 | .000 | 24.4 | .689 |
| Corbin Burnes | Ari | sp | 23 | 32 | 0 | .000 | 0 | 13 | .406 | 127 | 4.0 | 15 | 6 | .400 | 87.9 | .595 |
| Beau Burrows | Cle | sp | 21 | 13 | 0 | .000 | 0 | 2 | .154 | 58 | 4.5 | 11 | 7 | .636 | 81.8 | .580 |
| Matt Bush | SF | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 1 | .111 | 19.2 | .623 |
| Genesis Cabrera* | Ari | sp | 21 | 2 | 0 | .000 | 0 | 0 | .000 | 5 | 2.5 | 32 | 12 | .375 | 20.5 | .565 |
| Carter Capps | Phi | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 1 | 1 | 1.000 | 25.1 | .608 |
| Carlos Carrasco | | sp | 31 | 33 | 0 | .000 | 0 | 23 | .697 | 147 | 4.5 | 11 | 1 | .091 | 88.9 | .662 |
| Cody Carroll | NYN | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 0 | .000 | 31.2 | .476 |
| Andrew Cashner | Bal | sp | 31 | 9 | 0 | .000 | 0 | 3 | .333 | 29 | 3.2 | 11 | 2 | .182 | 50.9 | .649 |
| Diego Castillo | LAN | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 25 | 5 | .200 | 20.8 | .614 |
| Jose Castillo* | Tam | mr | 22 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 0 | .000 | 15.5 | .591 |
| Luis Castillo | | sp | 25 | 31 | 3 | .097 | 3 | 22 | .710 | 137 | 4.4 | 14 | 5 | .357 | 94.8 | .648 |
| Miguel Castro | Tex | mr | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 19 | 6 | .316 | 26.3 | .628 |
| Simon Castro | LAN | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 17 | 10 | .588 | 19.8 | .582 |
| Brett Cecil* | Det | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 1 | .083 | 18.9 | .653 |
| Xavier Cedeno* | Mia | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 18 | 9 | .500 | 14.6 | .626 |
| Luis Cessa | | sp | 26 | 3 | 0 | .000 | 0 | 1 | .333 | 13 | 4.3 | 4 | 0 | .000 | 50.6 | .598 |
| Jhoulys Chacin | Det | sp | 30 | 16 | 0 | .000 | 0 | 10 | .625 | 92 | 5.8 | 15 | 2 | .133 | 88.9 | .618 |
| Andrew Chafin* | Was | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 3 | .200 | 18.7 | .611 |
| Aroldis Chapman* | Oak | cl | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 10 | 1 | .100 | 18.4 | .584 |
| J.T. Chargois | LAN | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 3 | .500 | 19.8 | .593 |
| Tyler Chatwood | | sp | 28 | 28 | 0 | .000 | 0 | 9 | .321 | 114 | 4.1 | 18 | 3 | .167 | 90.3 | .592 |
| Jesse Chavez | StL | sp | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 33 | 12 | .364 | 19.9 | .626 |
| Wei-Yin Chen* | Min | sp | 32 | 27 | 1 | .037 | 1 | 16 | .593 | 148 | 5.5 | 10 | 4 | .400 | 94.8 | .666 |
| Yonny Chirinos | ChN | sp | 24 | 2 | 0 | .000 | 0 | 2 | 1.000 | 4 | 2.0 | 16 | 6 | .375 | 24.1 | .655 |
| Adam Cimber | LAA | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 4 | .364 | 22.5 | .688 |
| Tony Cingrani* | Hou | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 21 | 7 | .333 | 29.6 | .589 |
| Steve Cishek | Pit | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 31 | 5 | .161 | 18.0 | .636 |
| Brian Clark* | | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 20 | 2 | .100 | 24.7 | .625 |
| Taylor Clarke | Mil | sp | 25 | 3 | 0 | .000 | 0 | 2 | .667 | 13 | 4.3 | 2 | 2 | 1.000 | 71.7 | .595 |
| Alex Claudio* | Cin | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 10 | 2 | .200 | 16.7 | .654 |
| Michael Clevinger | Bos | sp | 27 | 3 | 0 | .000 | 0 | 1 | .333 | 34 | 11.3 | 23 | 6 | .261 | 26.0 | .600 |
| Tyler Clippard | Min | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 25 | 4 | .160 | 21.7 | .607 |
| Corbin Clouse* | | mr | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 0 | .000 | 35.6 | .538 |
| Alex Cobb | | sp | 30 | 31 | 0 | .000 | 0 | 19 | .613 | 145 | 4.7 | 9 | 3 | .333 | 94.9 | .642 |
| Gerrit Cole | LAA | sp | 27 | 35 | 3 | .086 | 2 | 30 | .857 | 174 | 5.0 | 22 | 8 | .364 | 97.1 | .670 |
| Alex Colome | SF | cl | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 25 | 7 | .280 | 20.6 | .624 |
| Adam Conley* | | sp | 28 | 5 | 0 | .000 | 0 | 2 | .400 | 20 | 4.0 | 5 | 4 | .800 | 44.0 | .643 |
| Patrick Corbin* | | sp | 28 | 28 | 0 | .000 | 0 | 16 | .571 | 150 | 5.4 | 13 | 5 | .385 | 76.8 | .624 |
| Nestor Cortes* | Tam | mr | 23 | 1 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 25 | 9 | .360 | 23.6 | .624 |
| Daniel Coulombe* | ChA | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 3 | .273 | 18.6 | .635 |
| Kyle Crick | Cle | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 32 | 4 | .125 | 25.8 | .586 |
| Johnny Cueto | Mil | sp | 32 | 16 | 0 | .000 | 0 | 5 | .313 | 80 | 5.0 | 12 | 5 | .417 | 84.9 | .616 |
| John Curtiss | Was | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 24 | 7 | .292 | 22.7 | .599 |
| Yu Darvish | NYA | sp | 31 | 10 | 1 | .100 | 1 | 4 | .400 | 70 | 7.0 | 10 | 3 | .300 | 95.3 | .652 |
| Zach Davies | | sp | 25 | 21 | 1 | .048 | 1 | 12 | .571 | 149 | 7.1 | 10 | 4 | .400 | 86.7 | .652 |
| Austin Davis* | Oak | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 16.5 | .636 |
| Wade Davis | Det | cl | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 14 | 2 | .143 | 20.4 | .631 |
| Enyel de los Santos | Oak | sp | 22 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 16 | 6 | .375 | 26.4 | .613 |
| Jacob deGrom | Tor | sp | 30 | 38 | 2 | .053 | 1 | 19 | .500 | 211 | 5.6 | 19 | 5 | .263 | 87.6 | .649 |
| Randall Delgado | Mil | mr | 28 | 16 | 0 | .000 | 0 | 6 | .375 | 86 | 5.4 | 7 | 2 | .286 | 90.1 | .629 |
| Anthony DeSclafani | Ari | sp | 28 | 22 | 1 | .045 | 0 | 14 | .636 | 89 | 4.0 | 13 | 3 | .231 | 96.9 | .629 |
| Chris Devenski | Det | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 3 | .750 | 20.4 | .665 |
| Dayan Diaz | NYA | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 0 | .000 | 20.7 | .636 |
| Edwin Diaz | Cle | cl | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 7 | 3 | .429 | 20.9 | .639 |
| Miguel Diaz | Tex | mr | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 4 | .364 | 24.7 | .603 |
| Jake Diekman* | SF | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 24 | 7 | .292 | 23.3 | .576 |
| Marcos Diplan | Atl | sp | 21 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 42.0 | .690 |
| Seranthony Dominguez | | sp | 23 | 8 | 0 | .000 | 0 | 4 | .500 | 24 | 3.0 | 4 | 3 | .750 | 68.5 | .578 |
| Sean Doolittle* | SF | cl | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 0 | .000 | 18.3 | .679 |
| Brian Duensing* | StL | mr | 35 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 10 | 0 | .000 | 16.1 | .600 |
| Danny Duffy* | SF | sp | 29 | 34 | 0 | .000 | 0 | 18 | .529 | 127 | 3.7 | 13 | 3 | .231 | 89.8 | .629 |
| Zach Duke* | KC | mr | 35 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 35 | 7 | .200 | 14.0 | .612 |
| Mike Dunn* | Min | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 2 | .222 | 15.3 | .620 |
| Sam Dyson | Tam | cl | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 3 | .500 | 17.4 | .607 |
| Mark Ecker | Bal | mr | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 3 | 1.000 | 22.0 | .545 |
| Carl Edwards Jr. | Mia | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 1 | .083 | 20.5 | .587 |
| Zach Eflin | Tam | sp | 24 | 20 | 0 | .000 | 0 | 11 | .550 | 72 | 3.6 | 6 | 3 | .500 | 82.3 | .657 |
| Jerad Eickhoff | LAA | sp | 27 | 5 | 0 | .000 | 0 | 4 | .800 | 24 | 4.8 | 1 | 0 | .000 | 92.8 | .642 |
| Nathan Eovaldi | Ari | sp | 28 | 3 | 0 | .000 | 0 | 0 | .000 | 14 | 4.7 | 33 | 10 | .303 | 24.0 | .624 |
| Robbie Erlin* | Tex | sp | 27 | 30 | 0 | .000 | 0 | 14 | .467 | 147 | 4.9 | 25 | 11 | .440 | 83.7 | .646 |
| Luis Escobar | Bos | sp | 22 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 4 | .667 | 24.3 | .581 |
| Thomas Eshelman | ChA | sp | 24 | 18 | 1 | .056 | 0 | 9 | .500 | 56 | 3.1 | 5 | 2 | .400 | 92.4 | .668 |
| Carlos Estevez | Min | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 1 | 0 | .000 | 20.3 | .617 |
| Marco Estrada | Cin | sp | 34 | 21 | 0 | .000 | 0 | 14 | .667 | 97 | 4.6 | 12 | 3 | .250 | 95.0 | .613 |
| Jeurys Familia | | cl | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 4 | .364 | 18.8 | .607 |
| Jacob Faria | Tam | sp | 24 | 14 | 0 | .000 | 0 | 7 | .500 | 48 | 3.4 | 7 | 4 | .571 | 93.5 | .616 |
| Erick Fedde | Cle | sp | 25 | 10 | 0 | .000 | 0 | 2 | .200 | 48 | 4.8 | 10 | 6 | .600 | 58.6 | .607 |
| Michael Feliz | Det | mr | 25 | 26 | 0 | .000 | 0 | 12 | .462 | 141 | 5.4 | 14 | 4 | .286 | 84.1 | .618 |
| Riley Ferrell | Oak | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 0 | .000 | 19.7 | .610 |
| Josh Fields | Phi | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 16 | 6 | .375 | 18.1 | .639 |
| Mike Fiers | StL | sp | 33 | 21 | 0 | .000 | 0 | 12 | .571 | 89 | 4.2 | 16 | 6 | .375 | 72.3 | .641 |
| Brandon Finnegan* | Oak | sp | 25 | 12 | 0 | .000 | 0 | 5 | .417 | 60 | 5.0 | 7 | 3 | .429 | 92.3 | .616 |
| Doug Fister | Mil | sp | 34 | 10 | 0 | .000 | 0 | 4 | .400 | 37 | 3.7 | 8 | 2 | .250 | 88.7 | .631 |
| Jack Flaherty | Bal | sp | 22 | 31 | 0 | .000 | 0 | 16 | .516 | 124 | 4.0 | 13 | 3 | .231 | 94.8 | .640 |
| Chris Flexen | Hou | sp | 23 | 14 | 0 | .000 | 0 | 9 | .643 | 42 | 3.0 | 8 | 1 | .125 | 62.0 | .627 |
| Jose Flores | Cin | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 34.0 | .471 |
| Brian Flynn* | Phi | mr | 28 | 31 | 0 | .000 | 0 | 17 | .548 | 167 | 5.4 | 16 | 8 | .500 | 80.9 | .623 |
| Mike Foltynewicz | | sp | 26 | 19 | 0 | .000 | 0 | 11 | .579 | 101 | 5.3 | 12 | 2 | .167 | 78.3 | .643 |
| Wilmer Font | SF | sp | 28 | 35 | 1 | .029 | 0 | 19 | .543 | 122 | 3.5 | 9 | 3 | .333 | 86.2 | .651 |
| Kyle Freeland* | ChA | sp | 25 | 27 | 0 | .000 | 0 | 13 | .481 | 104 | 3.9 | 22 | 13 | .591 | 90.2 | .619 |
| Sam Freeman* | NYN | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 1 | .091 | 20.4 | .569 |
| Max Fried* | Ari | sp | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 18 | 8 | .444 | 19.2 | .565 |
| Jace Fry* | | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 2 | .167 | 25.2 | .582 |
| Carson Fulmer | ChA | sp | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 1 | 0 | .000 | 20.0 | .550 |
| Michael Fulmer | Mia | sp | 25 | 28 | 2 | .071 | 2 | 20 | .714 | 106 | 3.8 | 13 | 3 | .231 | 95.3 | .646 |
| Giovanny Gallegos | SF | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 25 | 10 | .400 | 25.1 | .643 |
| John Gant | Hou | sp | 25 | 16 | 1 | .063 | 0 | 8 | .500 | 35 | 2.2 | 14 | 3 | .214 | 66.7 | .624 |
| Jaime Garcia* | Atl | sp | 31 | 34 | 3 | .088 | 0 | 20 | .588 | 122 | 3.6 | 22 | 11 | .500 | 103.8 | .622 |
| Luis Garcia | Bos | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 2 | .133 | 19.9 | .632 |
| Yimi Garcia | SD | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 14 | 5 | .357 | 16.9 | .664 |
| Nick Gardewine | Cle | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 2 | .222 | 26.4 | .586 |
| Amir Garrett* | Tex | sp | 26 | 20 | 0 | .000 | 0 | 7 | .350 | 94 | 4.7 | 30 | 15 | .500 | 47.7 | .602 |
| Matt Garza | Atl | sp | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 0 | .000 | 37.0 | .541 |
| Kevin Gausman | | sp | 27 | 33 | 1 | .030 | 1 | 14 | .424 | 160 | 4.8 | 18 | 5 | .278 | 94.9 | .637 |
| Cory Gearrin | Atl | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 25 | 10 | .400 | 24.2 | .614 |
| Domingo German | Oak | sp | 25 | 9 | 0 | .000 | 0 | 4 | .444 | 46 | 5.1 | 13 | 1 | .077 | 48.7 | .645 |
| Ian Gibaut | | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 2 | .667 | 23.5 | .650 |
| Kyle Gibson | Bos | sp | 30 | 36 | 1 | .028 | 1 | 12 | .333 | 144 | 4.0 | 20 | 7 | .350 | 90.0 | .618 |
| Ken Giles | Sea | cl | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 0 | .000 | 18.0 | .652 |
| Lucas Giolito | Col | sp | 23 | 30 | 0 | .000 | 0 | 11 | .367 | 162 | 5.4 | 26 | 8 | .308 | 74.5 | .624 |
| Mychal Givens | Cin | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 34 | 5 | .147 | 19.1 | .609 |
| Tyler Glasnow | Oak | sp | 24 | 33 | 0 | .000 | 0 | 18 | .545 | 173 | 5.2 | 13 | 4 | .308 | 91.2 | .612 |
| Koda Glover | Cle | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 0 | .000 | 25.6 | .646 |
| Zack Godley | NYN | sp | 28 | 25 | 0 | .000 | 0 | 14 | .560 | 90 | 3.6 | 19 | 7 | .368 | 59.9 | .625 |
| Luiz Gohara* | Sea | sp | 21 | 5 | 0 | .000 | 0 | 3 | .600 | 22 | 4.4 | 3 | 2 | .667 | 98.6 | .641 |
| Austin Gomber* | StL | sp | 24 | 32 | 0 | .000 | 0 | 19 | .594 | 152 | 4.8 | 15 | 5 | .333 | 89.2 | .607 |
| Stephen Gonsalves* | KC | sp | 23 | 33 | 1 | .030 | 0 | 12 | .364 | 112 | 3.4 | 28 | 12 | .429 | 91.0 | .592 |
| Marco Gonzales* | | sp | 26 | 15 | 0 | .000 | 0 | 10 | .667 | 44 | 2.9 | 8 | 2 | .250 | 74.8 | .621 |
| Gio Gonzalez* | Cin | sp | 32 | 34 | 0 | .000 | 0 | 19 | .559 | 140 | 4.1 | 21 | 5 | .238 | 93.7 | .620 |
| Nick Goody | Oak | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 0 | .000 | 27.3 | .610 |
| Matt Grace* | LAA | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 1 | .250 | 25.5 | .618 |
| Kendall Graveman | Cle | sp | 27 | 10 | 0 | .000 | 0 | 9 | .900 | 37 | 3.7 | 7 | 1 | .143 | 96.1 | .626 |
| Jon Gray | | sp | 26 | 32 | 0 | .000 | 0 | 17 | .531 | 162 | 5.1 | 9 | 4 | .444 | 86.5 | .636 |
| Sonny Gray | SF | sp | 28 | 37 | 0 | .000 | 0 | 18 | .486 | 151 | 4.1 | 18 | 2 | .111 | 90.8 | .626 |
| Chad Green | ChN | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 17 | 6 | .353 | 19.1 | .608 |
| Shane Greene | Bal | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 17 | 5 | .294 | 16.1 | .612 |
| Zack Greinke | Bal | sp | 34 | 31 | 1 | .032 | 1 | 20 | .645 | 116 | 3.7 | 14 | 5 | .357 | 99.4 | .667 |
| Robert Gsellman | Mia | sp | 24 | 1 | 0 | .000 | 0 | 0 | .000 | 15 | 15.0 | 4 | 1 | .250 | 25.3 | .629 |
| Deolis Guerra | Atl | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 37.0 | .676 |
| Junior Guerra | ChN | sp | 33 | 1 | 0 | .000 | 0 | 1 | 1.000 | 8 | 8.0 | 2 | 2 | 1.000 | 40.0 | .575 |
| Josh Hader* | Oak | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 3 | .333 | 24.0 | .591 |
| Matt Hall* | ChN | sp | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 19.0 | .632 |
| Cole Hamels* | Cin | sp | 34 | 34 | 0 | .000 | 0 | 16 | .471 | 155 | 4.6 | 21 | 8 | .381 | 90.2 | .613 |
| Jason Hammel | Sea | sp | 35 | 34 | 0 | .000 | 0 | 17 | .500 | 140 | 4.1 | 14 | 2 | .143 | 90.5 | .657 |
| Brad Hand* | SD | cl | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 1 | .091 | 20.4 | .631 |
| Alec Hansen | KC | sp | 23 | 1 | 0 | .000 | 0 | 1 | 1.000 | 2 | 2.0 | 2 | 0 | .000 | 34.0 | .615 |
| J.A. Happ* | ChN | sp | 35 | 31 | 0 | .000 | 0 | 20 | .645 | 121 | 3.9 | 19 | 2 | .105 | 97.4 | .631 |
| Blaine Hardy* | Mil | mr | 31 | 1 | 0 | .000 | 0 | 0 | .000 | 6 | 6.0 | 27 | 12 | .444 | 20.9 | .620 |
| Will Harris | Det | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 10 | 0 | .000 | 21.9 | .647 |
| Hunter Harvey | Tex | sp | 23 | 22 | 0 | .000 | 0 | 2 | .091 | 91 | 4.1 | 23 | 6 | .261 | 75.7 | .574 |
| Matt Harvey | | sp | 29 | 28 | 0 | .000 | 0 | 14 | .500 | 133 | 4.8 | 15 | 3 | .200 | 86.3 | .640 |
| Andrew Heaney* | | sp | 27 | 29 | 0 | .000 | 0 | 15 | .517 | 113 | 3.9 | 11 | 1 | .091 | 90.4 | .634 |
| Taylor Hearn* | KC | sp | 23 | 14 | 0 | .000 | 0 | 4 | .286 | 58 | 4.1 | 13 | 1 | .077 | 74.9 | .584 |
| Ben Heller | ChA | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 0 | .000 | 16.8 | .690 |
| Jeremy Hellickson | LAN | sp | 31 | 8 | 0 | .000 | 0 | 3 | .375 | 30 | 3.8 | 7 | 3 | .429 | 73.0 | .663 |
| Ryan Helsley | Tam | sp | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 7 | .636 | 21.0 | .593 |
| Heath Hembree | SD | mr | 29 | 1 | 0 | .000 | 0 | 0 | .000 | 6 | 6.0 | 27 | 4 | .148 | 17.5 | .628 |
| Kyle Hendricks | Was | sp | 28 | 38 | 0 | .000 | 0 | 20 | .526 | 210 | 5.5 | 19 | 5 | .263 | 88.6 | .658 |
| Liam Hendriks | ChN | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 20 | 4 | .200 | 21.5 | .624 |
| Jimmy Herget | Col | mr | 24 | 1 | 0 | .000 | 0 | 0 | .000 | 8 | 8.0 | 36 | 12 | .333 | 19.5 | .601 |
| Kevin Herget | LAA | mr | 27 | 20 | 1 | .050 | 0 | 13 | .650 | 87 | 4.3 | 15 | 3 | .200 | 95.9 | .622 |
| David Hernandez | Mil | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 14 | 6 | .429 | 18.4 | .619 |
| Felix Hernandez | Tor | sp | 32 | 16 | 0 | .000 | 0 | 5 | .313 | 80 | 5.0 | 9 | 2 | .222 | 79.2 | .616 |
| Kelvin Herrera | Det | cl | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 0 | .000 | 23.0 | .609 |
| Ronald Herrera | Atl | sp | 23 | 32 | 0 | .000 | 0 | 17 | .531 | 133 | 4.2 | 14 | 5 | .357 | 100.4 | .594 |
| Trevor Hildenberger | Min | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 10 | 6 | .600 | 20.7 | .685 |
| Rich Hill* | Was | sp | 38 | 33 | 0 | .000 | 0 | 8 | .242 | 152 | 4.6 | 16 | 3 | .188 | 83.8 | .594 |
| Yoshihisa Hirano | LAN | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 21 | 8 | .381 | 17.7 | .610 |
| Jeff Hoffman | Sea | sp | 25 | 17 | 0 | .000 | 0 | 10 | .588 | 64 | 3.8 | 10 | 2 | .200 | 76.1 | .624 |
| Jonathan Holder | LAA | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 10 | 3 | .300 | 22.4 | .656 |
| Derek Holland* | NYN | sp | 31 | 2 | 0 | .000 | 0 | 2 | 1.000 | 5 | 2.5 | 1 | 0 | .000 | 68.0 | .613 |
| Greg Holland | | cl | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 10 | 1 | .100 | 17.5 | .605 |
| J.J. Hoover | Bal | mr | 30 | 1 | 0 | .000 | 0 | 0 | .000 | 3 | 3.0 | 6 | 2 | .333 | 22.7 | .621 |
| Sam Howard* | KC | sp | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 34.0 | .647 |
| James Hoyt | Cin | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 13 | 2 | .154 | 18.9 | .614 |
| Chih-Wei Hu | Mia | mr | 24 | 27 | 0 | .000 | 0 | 13 | .481 | 129 | 4.8 | 14 | 5 | .357 | 90.5 | .631 |
| Dakota Hudson | KC | sp | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 47 | 12 | .255 | 22.4 | .607 |
| Jared Hughes | Bos | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 3 | .200 | 19.1 | .584 |
| Tommy Hunter | Phi | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 1 | .125 | 20.9 | .658 |
| Raisel Iglesias | | cl | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 5 | .417 | 16.3 | .612 |
| Gregory Infante | Cin | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 2 | .667 | 19.9 | .604 |
| Luke Jackson | KC | mr | 26 | 32 | 0 | .000 | 0 | 18 | .563 | 109 | 3.4 | 16 | 3 | .188 | 95.2 | .601 |
| Kenley Jansen | | cl | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 0 | .000 | 18.5 | .649 |
| Jeremy Jeffress | Atl | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 19 | 5 | .263 | 27.6 | .592 |
| Dan Jennings* | Was | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 13 | 5 | .385 | 21.0 | .593 |
| Joe Jimenez | KC | mr | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 27 | 6 | .222 | 17.2 | .611 |
| Brian Johnson* | Mil | sp | 27 | 12 | 0 | .000 | 0 | 3 | .250 | 44 | 3.7 | 9 | 1 | .111 | 83.9 | .584 |
| Connor Jones | Mil | sp | 23 | 1 | 0 | .000 | 0 | 0 | .000 | 2 | 2.0 | 0 | 0 | .000 | 85.0 | .553 |
| Nate Jones | Was | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 3 | .333 | 19.0 | .640 |
| Jake Junis | LAN | sp | 25 | 29 | 0 | .000 | 0 | 16 | .552 | 118 | 4.1 | 17 | 5 | .294 | 91.3 | .636 |
| Tommy Kahnle | LAA | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 7 | 1 | .143 | 17.1 | .625 |
| Keone Kela | | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 14 | 1 | .071 | 20.2 | .650 |
| Brad Keller | | sp | 22 | 9 | 0 | .000 | 0 | 4 | .444 | 39 | 4.3 | 17 | 8 | .471 | 43.2 | .622 |
| Mitch Keller | | sp | 22 | 7 | 0 | .000 | 0 | 1 | .143 | 37 | 5.3 | 7 | 3 | .429 | 45.0 | .621 |
| Joe Kelly | Mil | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 18 | 3 | .167 | 21.5 | .598 |
| Brett Kennedy | Cin | sp | 23 | 1 | 0 | .000 | 0 | 0 | .000 | 13 | 13.0 | 1 | 0 | .000 | 105.0 | .590 |
| Ian Kennedy | Hou | sp | 33 | 22 | 2 | .091 | 0 | 11 | .500 | 81 | 3.7 | 15 | 5 | .333 | 74.4 | .614 |
| Clayton Kershaw* | | sp | 30 | 24 | 0 | .000 | 0 | 14 | .583 | 107 | 4.5 | 9 | 1 | .111 | 93.6 | .668 |
| Dallas Keuchel* | ChN | sp | 30 | 36 | 0 | .000 | 0 | 22 | .611 | 182 | 5.1 | 23 | 9 | .391 | 95.9 | .618 |
| Franklyn Kilome | | sp | 23 | 8 | 0 | .000 | 0 | 2 | .250 | 39 | 4.9 | 8 | 2 | .250 | 71.5 | .566 |
| Craig Kimbrel | Tor | cl | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 1 | .250 | 19.9 | .613 |
| Nick Kingham | Hou | sp | 26 | 17 | 3 | .176 | 1 | 9 | .529 | 39 | 2.3 | 7 | 3 | .429 | 72.6 | .658 |
| Brandon Kintzler | Col | cl | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 32 | 12 | .375 | 18.4 | .637 |
| Andrew Kittredge | Mia | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 0 | .000 | 24.6 | .627 |
| Corey Kluber | SF | sp | 32 | 37 | 0 | .000 | 0 | 26 | .703 | 147 | 4.0 | 18 | 3 | .167 | 95.6 | .664 |
| Corey Knebel | | cl | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 1 | .083 | 20.2 | .610 |
| Tom Koehler | Hou | sp | 32 | 1 | 0 | .000 | 0 | 0 | .000 | 3 | 3.0 | 1 | 0 | .000 | 57.0 | .623 |
| George Kontos | | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 3 | .333 | 23.1 | .655 |
| Chad Kuhl | Col | sp | 25 | 11 | 0 | .000 | 0 | 8 | .727 | 44 | 4.0 | 5 | 0 | .000 | 100.1 | .618 |
| Brady Lail | Hou | sp | 24 | 19 | 1 | .053 | 0 | 6 | .316 | 53 | 2.8 | 9 | 2 | .222 | 80.9 | .620 |
| Eric Lauer* | Hou | sp | 23 | 17 | 0 | .000 | 0 | 8 | .471 | 83 | 4.9 | 10 | 3 | .300 | 93.7 | .625 |
| Derek Law | Mia | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 23 | 9 | .391 | 20.3 | .603 |
| Mike Leake | Cin | sp | 30 | 34 | 0 | .000 | 0 | 25 | .735 | 165 | 4.9 | 13 | 3 | .231 | 90.6 | .654 |
| Wade LeBlanc* | Was | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 2 | .400 | 25.5 | .627 |
| Jose Leclerc | LAA | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 27 | 5 | .185 | 22.7 | .563 |
| Dominic Leone | | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 17 | 1 | .059 | 17.9 | .618 |
| Jon Lester* | | sp | 34 | 34 | 2 | .059 | 2 | 20 | .588 | 176 | 5.2 | 16 | 6 | .375 | 91.4 | .651 |
| Artie Lewicki | LAN | sp | 26 | 20 | 1 | .050 | 0 | 9 | .450 | 88 | 4.4 | 9 | 2 | .222 | 87.3 | .644 |
| Adam Liberatore* | Phi | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 23 | 10 | .435 | 17.7 | .635 |
| Zack Littell | Tam | sp | 22 | 1 | 0 | .000 | 0 | 1 | 1.000 | 0 | 0.0 | 3 | 0 | .000 | 29.3 | .597 |
| Walker Lockett | ChA | sp | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 1 | .250 | 25.4 | .656 |
| Boone Logan* | LAN | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 6 | .750 | 15.4 | .528 |
| Jorge Lopez | SD | sp | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 20.5 | .610 |
| Pablo Lopez | Tex | sp | 22 | 17 | 0 | .000 | 0 | 7 | .412 | 42 | 2.5 | 20 | 8 | .400 | 63.2 | .630 |
| Reynaldo Lopez | Bos | sp | 24 | 1 | 0 | .000 | 0 | 0 | .000 | 6 | 6.0 | 29 | 6 | .207 | 24.6 | .602 |
| Yoan Lopez | Tex | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 3 | .500 | 19.4 | .595 |
| Michael Lorenzen | | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 4 | .364 | 21.1 | .647 |
| Aaron Loup* | Cin | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 25 | 6 | .240 | 18.2 | .603 |
| Richard Lovelady* | | mr | 22 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 28 | 11 | .393 | 27.4 | .584 |
| Joey Lucchesi* | Ari | sp | 25 | 18 | 0 | .000 | 0 | 9 | .500 | 81 | 4.5 | 21 | 9 | .429 | 49.5 | .629 |
| Seth Lugo | NYN | sp | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 0 | .000 | 19.3 | .604 |
| Jordan Lyles | Phi | mr | 27 | 3 | 0 | .000 | 0 | 3 | 1.000 | 7 | 2.3 | 3 | 1 | .333 | 98.7 | .659 |
| Lance Lynn | | sp | 31 | 32 | 1 | .031 | 0 | 17 | .531 | 103 | 3.2 | 13 | 5 | .385 | 91.4 | .622 |
| Tyler Lyons* | Cin | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 17 | 4 | .235 | 17.6 | .636 |
| Ryan Madson | | cl | 37 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 30 | 14 | .467 | 20.9 | .661 |
| Kenta Maeda | Min | sp | 30 | 28 | 1 | .036 | 0 | 22 | .786 | 108 | 3.9 | 15 | 4 | .267 | 95.4 | .661 |
| Tyler Mahle | Tam | sp | 23 | 33 | 0 | .000 | 0 | 14 | .424 | 138 | 4.2 | 19 | 3 | .158 | 88.8 | .655 |
| Kazuhisa Makita | | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 3 | .200 | 17.4 | .671 |
| Sean Manaea* | Mil | sp | 26 | 31 | 0 | .000 | 0 | 16 | .516 | 161 | 5.2 | 21 | 8 | .381 | 91.0 | .633 |
| Michael Mariot | ChN | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 1 | 0 | .000 | 32.3 | .628 |
| German Marquez | Bos | sp | 23 | 36 | 1 | .028 | 0 | 16 | .444 | 199 | 5.5 | 26 | 12 | .462 | 93.4 | .630 |
| Francis Martes | Tam | mr | 22 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 3 | .375 | 22.3 | .591 |
| Cody Martin | SD | sp | 28 | 9 | 0 | .000 | 0 | 6 | .667 | 32 | 3.6 | 27 | 12 | .444 | 33.1 | .620 |
| Kyle Martin | SD | mr | 27 | 4 | 0 | .000 | 0 | 0 | .000 | 13 | 3.3 | 14 | 3 | .214 | 29.2 | .595 |
| Carlos Martinez | Sea | sp | 26 | 17 | 0 | .000 | 0 | 6 | .353 | 63 | 3.7 | 9 | 3 | .333 | 90.8 | .639 |
| Phil Maton | ChN | mr | 25 | 1 | 0 | .000 | 0 | 0 | .000 | 6 | 6.0 | 12 | 7 | .583 | 20.5 | .614 |
| Steven Matz* | | sp | 27 | 31 | 0 | .000 | 0 | 19 | .613 | 128 | 4.1 | 20 | 3 | .150 | 92.1 | .632 |
| Brandon Maurer | Tam | cl | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 6.0 | .500 |
| Trevor May | Sea | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 1 | 0 | .000 | 25.8 | .665 |
| Mike Mayers | StL | sp | 26 | 3 | 0 | .000 | 0 | 0 | .000 | 7 | 2.3 | 8 | 4 | .500 | 30.0 | .583 |
| Cory Mazzoni | NYN | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 14 | 6 | .429 | 22.3 | .636 |
| Zach McAllister | Sea | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 24 | 3 | .125 | 20.4 | .614 |
| Brandon McCarthy | SF | sp | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 1 | .167 | 23.5 | .637 |
| Lance McCullers | | sp | 24 | 23 | 0 | .000 | 0 | 14 | .609 | 78 | 3.4 | 21 | 4 | .190 | 93.0 | .638 |
| T.J. McFarland* | Bos | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 2 | .500 | 22.7 | .621 |
| Jake McGee* | Tor | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 18 | 5 | .278 | 20.3 | .648 |
| Kyle McGrath* | | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 2 | .222 | 21.4 | .660 |
| Collin McHugh | Cin | sp | 31 | 34 | 1 | .029 | 1 | 22 | .647 | 143 | 4.2 | 16 | 4 | .250 | 92.3 | .632 |
| Ryan Meisinger | Cin | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 7 | 3 | .429 | 25.4 | .564 |
| Adalberto Mejia* | Min | sp | 25 | 4 | 0 | .000 | 0 | 1 | .250 | 13 | 3.3 | 2 | 0 | .000 | 94.3 | .610 |
| Mark Melancon | Was | cl | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 0 | .000 | 16.4 | .674 |
| Keury Mella | Sea | sp | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 32 | 9 | .281 | 20.8 | .609 |
| Yohander Mendez* | KC | sp | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 28 | 5 | .179 | 19.4 | .614 |
| Daniel Mengden | Col | sp | 25 | 7 | 0 | .000 | 0 | 2 | .286 | 34 | 4.9 | 22 | 8 | .364 | 33.1 | .614 |
| Keynan Middleton | Bal | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 1 | 0 | .000 | 26.0 | .608 |
| Miles Mikolas | Bos | sp | 29 | 35 | 0 | .000 | 0 | 21 | .600 | 231 | 6.6 | 25 | 4 | .160 | 89.6 | .640 |
| Wade Miley* | SD | sp | 31 | 1 | 0 | .000 | 0 | 0 | .000 | 5 | 5.0 | 2 | 2 | 1.000 | 50.3 | .609 |
| Andrew Miller* | Det | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 1 | 0 | .000 | 20.7 | .630 |
| Jared Miller* | Phi | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 31 | 3 | .097 | 20.2 | .595 |
| Justin Miller | KC | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 0 | .000 | 24.4 | .578 |
| Shelby Miller | Atl | sp | 27 | 1 | 0 | .000 | 0 | 1 | 1.000 | 5 | 5.0 | 0 | 0 | .000 | 94.0 | .660 |
| Alec Mills | | sp | 26 | 22 | 0 | .000 | 0 | 14 | .636 | 89 | 4.0 | 12 | 1 | .083 | 78.2 | .649 |
| Mike Minor* | ChN | mr | 30 | 32 | 0 | .000 | 0 | 18 | .563 | 102 | 3.2 | 24 | 12 | .500 | 93.6 | .633 |
| A.J. Minter* | Was | mr | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 31 | 5 | .161 | 19.1 | .582 |
| Ariel Miranda* | StL | sp | 29 | 6 | 0 | .000 | 0 | 2 | .333 | 33 | 5.5 | 9 | 3 | .333 | 83.3 | .588 |
| Bryan Mitchell | Pit | mr | 27 | 5 | 0 | .000 | 0 | 0 | .000 | 13 | 2.6 | 12 | 3 | .250 | 35.3 | .642 |
| Marcos Molina | NYA | sp | 23 | 10 | 0 | .000 | 0 | 4 | .400 | 48 | 4.8 | 12 | 5 | .417 | 47.6 | .638 |
| Frankie Montas | ChN | mr | 25 | 28 | 0 | .000 | 0 | 8 | .286 | 144 | 5.1 | 25 | 8 | .320 | 97.0 | .608 |
| Jordan Montgomery* | ChA | sp | 25 | 7 | 0 | .000 | 0 | 2 | .286 | 18 | 2.6 | 5 | 3 | .600 | 90.9 | .629 |
| Mike Montgomery* | Sea | mr | 28 | 33 | 1 | .030 | 0 | 21 | .636 | 136 | 4.1 | 13 | 6 | .462 | 91.0 | .609 |
| Andrew Moore | Mil | sp | 24 | 4 | 0 | .000 | 0 | 1 | .250 | 16 | 4.0 | 3 | 2 | .667 | 82.0 | .643 |
| Matt Moore* | Tam | sp | 29 | 22 | 0 | .000 | 0 | 11 | .500 | 94 | 4.3 | 25 | 4 | .160 | 71.1 | .601 |
| Reyes Moronta | NYA | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 13 | 2 | .154 | 20.1 | .615 |
| Akeel Morris | StL | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 4 | .364 | 24.6 | .561 |
| Brandon Morrow | Atl | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 17 | 3 | .176 | 26.9 | .630 |
| Charlie Morton | | sp | 34 | 32 | 0 | .000 | 0 | 16 | .500 | 119 | 3.7 | 19 | 6 | .316 | 90.5 | .619 |
| Gabriel Moya* | KC | mr | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 41 | 14 | .341 | 16.5 | .619 |
| Peter Moylan | NYN | mr | 39 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 2 | .667 | 18.6 | .594 |
| Jose Mujica | Atl | sp | 22 | 33 | 1 | .030 | 0 | 13 | .394 | 141 | 4.3 | 12 | 1 | .083 | 94.1 | .617 |
| Joe Musgrove | ChA | sp | 25 | 18 | 0 | .000 | 0 | 11 | .611 | 56 | 3.1 | 10 | 5 | .500 | 93.9 | .663 |
| Nick Neidert | Hou | sp | 21 | 20 | 0 | .000 | 0 | 9 | .450 | 84 | 4.2 | 9 | 2 | .222 | 70.1 | .655 |
| Jimmy Nelson | SD | sp | 29 | 1 | 0 | .000 | 0 | 0 | .000 | 2 | 2.0 | 0 | 0 | .000 | 93.0 | .581 |
| Hector Neris | Phi | cl | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 3 | .250 | 22.5 | .628 |
| Pat Neshek | Phi | mr | 37 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 7 | 2 | .286 | 19.7 | .704 |
| Dovydas Neverauskas | Oak | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 2 | 1.000 | 39.0 | .577 |
| Sean Newcomb* | Oak | sp | 25 | 28 | 0 | .000 | 0 | 4 | .143 | 122 | 4.4 | 27 | 9 | .333 | 88.8 | .580 |
| Juan Nicasio | NYA | mr | 31 | 6 | 0 | .000 | 0 | 6 | 1.000 | 36 | 6.0 | 9 | 3 | .333 | 37.1 | .640 |
| Aaron Nola | Phi | sp | 25 | 36 | 1 | .028 | 0 | 19 | .528 | 157 | 4.4 | 27 | 9 | .333 | 89.8 | .660 |
| Bud Norris | NYN | cl | 33 | 29 | 1 | .034 | 1 | 9 | .310 | 113 | 3.9 | 22 | 3 | .136 | 74.1 | .620 |
| Ivan Nova | Mil | sp | 31 | 29 | 0 | .000 | 0 | 18 | .621 | 121 | 4.2 | 13 | 1 | .077 | 83.8 | .644 |
| Darren O'Day | NYA | mr | 35 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 1 | 1 | 1.000 | 20.4 | .637 |
| Trevor Oaks | Bal | sp | 25 | 13 | 0 | .000 | 0 | 7 | .538 | 45 | 3.5 | 8 | 2 | .250 | 92.9 | .628 |
| Scott Oberg | ChA | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 1 | .111 | 15.9 | .627 |
| Jake Odorizzi | SD | sp | 28 | 24 | 0 | .000 | 0 | 12 | .500 | 120 | 5.0 | 14 | 2 | .143 | 93.1 | .616 |
| Seung-hwan Oh | Pit | cl | 35 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 3 | .200 | 14.9 | .663 |
| Shohei Ohtani | Tex | sp | 23 | 5 | 0 | .000 | 0 | 1 | .200 | 20 | 4.0 | 5 | 0 | .000 | 86.4 | .606 |
| Tyler Olson* | Mia | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 10 | 3 | .300 | 16.8 | .632 |
| Roberto Osuna | Mia | cl | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 0 | .000 | 18.2 | .675 |
| Corey Oswalt | | sp | 24 | 19 | 0 | .000 | 0 | 8 | .421 | 64 | 3.4 | 9 | 5 | .556 | 92.8 | .633 |
| Dan Otero | | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 2 | .133 | 18.5 | .685 |
| Adam Ottavino | Pit | mr | 32 | 1 | 0 | .000 | 0 | 0 | .000 | 9 | 9.0 | 0 | 0 | .000 | 36.0 | .667 |
| Henry Owens* | Atl | sp | 25 | 36 | 0 | .000 | 0 | 9 | .250 | 165 | 4.6 | 35 | 12 | .343 | 98.8 | .529 |
| Emilio Pagan | NYN | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 43 | 11 | .256 | 21.9 | .608 |
| Blake Parker | LAA | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 7 | 2 | .286 | 17.6 | .645 |
| David Paulino | | sp | 24 | 3 | 0 | .000 | 0 | 2 | .667 | 16 | 5.3 | 4 | 0 | .000 | 42.1 | .602 |
| James Paxton* | Sea | sp | 29 | 27 | 0 | .000 | 0 | 18 | .667 | 91 | 3.4 | 11 | 6 | .545 | 86.0 | .640 |
| James Pazos* | | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 19 | 2 | .105 | 24.7 | .601 |
| Brad Peacock | | sp | 30 | 17 | 0 | .000 | 0 | 3 | .176 | 87 | 5.1 | 12 | 3 | .250 | 55.1 | .601 |
| Freddy Peralta | Oak | sp | 22 | 1 | 0 | .000 | 0 | 0 | .000 | 5 | 5.0 | 12 | 3 | .250 | 26.4 | .589 |
| Luis Perdomo | LAA | sp | 25 | 19 | 1 | .053 | 1 | 9 | .474 | 78 | 4.1 | 7 | 1 | .143 | 85.7 | .649 |
| Cionel Perez* | NYN | sp | 22 | 21 | 0 | .000 | 0 | 9 | .429 | 80 | 3.8 | 10 | 3 | .300 | 95.2 | .611 |
| Martin Perez* | LAN | sp | 27 | 18 | 1 | .056 | 1 | 11 | .611 | 60 | 3.3 | 7 | 0 | .000 | 97.0 | .618 |
| Oliver Perez* | Min | mr | 36 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 4 | .364 | 18.5 | .602 |
| Dillon Peters* | Cle | sp | 25 | 14 | 0 | .000 | 0 | 2 | .143 | 48 | 3.4 | 8 | 2 | .250 | 85.1 | .593 |
| Yusmeiro Petit | Was | mr | 33 | 5 | 0 | .000 | 0 | 0 | .000 | 34 | 6.8 | 22 | 7 | .318 | 26.0 | .646 |
| Jake Petricka | ChN | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 22 | 7 | .318 | 21.6 | .616 |
| Nick Pivetta | | sp | 25 | 27 | 0 | .000 | 0 | 15 | .556 | 121 | 4.5 | 10 | 6 | .600 | 90.1 | .630 |
| Adam Plutko | Tex | sp | 26 | 11 | 0 | .000 | 0 | 5 | .455 | 45 | 4.1 | 14 | 5 | .357 | 57.5 | .635 |
| Drew Pomeranz* | SD | sp | 29 | 16 | 0 | .000 | 0 | 7 | .438 | 86 | 5.4 | 8 | 4 | .500 | 86.6 | .627 |
| Daniel Poncedeleon | StL | sp | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 2 | .500 | 22.2 | .545 |
| Rick Porcello | Bal | sp | 29 | 32 | 2 | .063 | 0 | 16 | .500 | 135 | 4.2 | 13 | 7 | .538 | 98.2 | .669 |
| Bobby Poyner* | LAN | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 28 | 4 | .143 | 20.9 | .616 |
| Ryan Pressly | Min | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 24 | 5 | .208 | 20.3 | .626 |
| David Price* | Tor | sp | 32 | 40 | 0 | .000 | 0 | 19 | .475 | 213 | 5.3 | 15 | 2 | .133 | 85.6 | .657 |
| Jose Quintana* | | sp | 29 | 36 | 0 | .000 | 0 | 18 | .500 | 154 | 4.3 | 17 | 7 | .412 | 86.2 | .646 |
| Tanner Rainey | Atl | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 25 | 11 | .440 | 27.1 | .564 |
| Erasmo Ramirez | ChA | mr | 28 | 6 | 0 | .000 | 0 | 4 | .667 | 35 | 5.8 | 5 | 0 | .000 | 47.8 | .655 |
| A.J. Ramos | Min | cl | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 5 | 2 | .400 | 21.8 | .618 |
| Edubray Ramos | Tor | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 22 | 8 | .364 | 23.5 | .623 |
| Robbie Ray* | Oak | sp | 26 | 23 | 0 | .000 | 0 | 12 | .522 | 93 | 4.0 | 9 | 1 | .111 | 90.7 | .637 |
| Addison Reed | Cin | cl | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 22 | 7 | .318 | 18.5 | .676 |
| Cody Reed* | Col | sp | 25 | 7 | 0 | .000 | 0 | 3 | .429 | 21 | 3.0 | 41 | 12 | .293 | 25.1 | .561 |
| Clayton Richard* | LAA | sp | 34 | 20 | 0 | .000 | 0 | 12 | .600 | 73 | 3.7 | 12 | 4 | .333 | 88.1 | .639 |
| Garrett Richards | Bal | sp | 30 | 15 | 0 | .000 | 0 | 9 | .600 | 42 | 2.8 | 6 | 2 | .333 | 97.7 | .612 |
| Trevor Richards | | sp | 25 | 28 | 0 | .000 | 0 | 14 | .500 | 137 | 4.9 | 22 | 8 | .364 | 91.4 | .622 |
| Felipe Rivero* | | cl | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 25 | 4 | .160 | 19.0 | .626 |
| Tanner Roark | Min | sp | 31 | 29 | 0 | .000 | 0 | 12 | .414 | 141 | 4.9 | 20 | 4 | .200 | 85.0 | .639 |
| David Robertson | Mil | cl | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 2 | .500 | 18.4 | .630 |
| Carlos Rodon* | Col | sp | 25 | 20 | 0 | .000 | 0 | 5 | .250 | 112 | 5.6 | 18 | 6 | .333 | 93.2 | .601 |
| Dereck Rodriguez | NYA | sp | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 0 | .000 | 18.7 | .634 |
| Eduardo Rodriguez* | Col | sp | 25 | 18 | 0 | .000 | 0 | 8 | .444 | 84 | 4.7 | 11 | 1 | .091 | 90.2 | .602 |
| Richard Rodriguez | Mia | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 25.8 | .593 |
| Chaz Roe | | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 14 | 2 | .143 | 23.3 | .623 |
| Josh Rogers* | | sp | 23 | 20 | 0 | .000 | 0 | 9 | .450 | 39 | 2.0 | 6 | 3 | .500 | 90.2 | .645 |
| Taylor Rogers* | Cle | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 18 | 7 | .389 | 22.8 | .622 |
| Sal Romano | Col | sp | 24 | 14 | 0 | .000 | 0 | 4 | .286 | 60 | 4.3 | 6 | 2 | .333 | 47.8 | .614 |
| Fernando Romero | NYN | sp | 23 | 3 | 0 | .000 | 0 | 1 | .333 | 8 | 2.7 | 0 | 0 | .000 | 89.7 | .617 |
| Sergio Romo | Bal | mr | 35 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 22 | 5 | .227 | 18.5 | .637 |
| Hector Rondon | | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 27 | 4 | .148 | 16.2 | .652 |
| Trevor Rosenthal | SD | cl | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 20.0 | .600 |
| Joe Ross | Mia | sp | 25 | 5 | 0 | .000 | 0 | 3 | .600 | 22 | 4.4 | 3 | 2 | .667 | 87.6 | .646 |
| Robbie Ross Jr.* | SD | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 18 | 5 | .278 | 22.4 | .608 |
| Ben Rowen | ChN | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 1 | .333 | 21.2 | .670 |
| Nick Rumbelow | | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 33 | 6 | .182 | 26.4 | .623 |
| Chris Rusin* | KC | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 17 | 2 | .118 | 19.0 | .666 |
| Hyun-jin Ryu* | LAN | sp | 31 | 13 | 0 | .000 | 0 | 9 | .692 | 43 | 3.3 | 5 | 1 | .200 | 93.5 | .653 |
| Marc Rzepczynski* | Pit | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 20 | 8 | .400 | 13.9 | .576 |
| CC Sabathia* | Phi | sp | 37 | 6 | 0 | .000 | 0 | 2 | .333 | 12 | 2.0 | 2 | 2 | 1.000 | 97.0 | .608 |
| Chris Sale* | Det | sp | 29 | 27 | 5 | .185 | 2 | 22 | .815 | 129 | 4.8 | 13 | 3 | .231 | 100.6 | .672 |
| Jeff Samardzija | Det | sp | 33 | 10 | 0 | .000 | 0 | 5 | .500 | 46 | 4.6 | 5 | 2 | .400 | 89.7 | .656 |
| Aaron Sanchez | | sp | 25 | 22 | 0 | .000 | 0 | 9 | .409 | 81 | 3.7 | 17 | 4 | .235 | 91.6 | .596 |
| Dennis Santana | Ari | sp | 22 | 3 | 0 | .000 | 0 | 1 | .333 | 15 | 5.0 | 13 | 3 | .231 | 26.8 | .589 |
| Edgar Santana | ChA | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 10 | 2 | .200 | 22.4 | .617 |
| Ervin Santana | Min | sp | 35 | 3 | 0 | .000 | 0 | 2 | .667 | 7 | 2.3 | 2 | 0 | .000 | 96.3 | .637 |
| Max Scherzer | Phi | sp | 33 | 35 | 1 | .029 | 0 | 24 | .686 | 132 | 3.8 | 19 | 9 | .474 | 95.4 | .654 |
| Tanner Scott* | NYN | sp | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 1 | 1 | 1.000 | 13.2 | .557 |
| Antonio Senzatela | NYA | sp | 23 | 31 | 2 | .065 | 1 | 23 | .742 | 154 | 5.0 | 13 | 3 | .231 | 91.2 | .644 |
| Luis Severino | Tex | sp | 24 | 33 | 2 | .061 | 1 | 20 | .606 | 116 | 3.5 | 19 | 9 | .474 | 99.8 | .656 |
| Paul Sewald | | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 16 | 2 | .125 | 19.5 | .664 |
| Bryan Shaw | Was | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 18 | 3 | .167 | 18.2 | .646 |
| Justus Sheffield* | Ari | sp | 22 | 32 | 0 | .000 | 0 | 10 | .313 | 116 | 3.6 | 17 | 6 | .353 | 87.2 | .592 |
| Chandler Shepherd | Atl | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 13 | 7 | .538 | 29.0 | .618 |
| Jimmie Sherfy | Col | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 31 | 9 | .290 | 19.6 | .609 |
| Chasen Shreve* | Tam | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 21 | 7 | .333 | 19.1 | .603 |
| Lucas Sims | Hou | sp | 24 | 17 | 2 | .118 | 1 | 12 | .706 | 51 | 3.0 | 14 | 4 | .286 | 106.2 | .600 |
| Tyler Skaggs* | StL | sp | 26 | 22 | 0 | .000 | 0 | 10 | .455 | 86 | 3.9 | 15 | 3 | .200 | 89.6 | .633 |
| Carson Smith | Sea | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 9 | 3 | .333 | 21.9 | .622 |
| Joe Smith | Mil | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 26 | 10 | .385 | 19.0 | .648 |
| Will Smith* | | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 20 | 5 | .250 | 19.2 | .615 |
| Josh Smoker* | LAA | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 2 | .333 | 16.4 | .646 |
| Blake Snell* | Tor | sp | 25 | 35 | 0 | .000 | 0 | 11 | .314 | 183 | 5.2 | 28 | 11 | .393 | 83.9 | .596 |
| D.J. Snelten* | | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 3 | .500 | 22.7 | .632 |
| Sammy Solis* | Bal | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 27 | 8 | .296 | 21.9 | .589 |
| Joakim Soria | Pit | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 22 | 7 | .318 | 16.6 | .634 |
| Mike Soroka | Ari | sp | 20 | 10 | 0 | .000 | 0 | 4 | .400 | 35 | 3.5 | 6 | 2 | .333 | 92.1 | .604 |
| Craig Stammen | Mil | mr | 34 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 4 | .364 | 22.4 | .623 |
| Ryne Stanek | Oak | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 11 | 0 | .000 | 22.9 | .567 |
| Josh Staumont | | sp | 24 | 13 | 0 | .000 | 0 | 2 | .154 | 64 | 4.9 | 17 | 6 | .353 | 79.0 | .543 |
| Drew Steckenrider | NYA | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 26 | 7 | .269 | 24.1 | .607 |
| Jackson Stephens | Tam | sp | 24 | 3 | 0 | .000 | 0 | 2 | .667 | 5 | 1.7 | 4 | 0 | .000 | 42.6 | .628 |
| Jordan Stephens | ChA | sp | 25 | 1 | 0 | .000 | 0 | 0 | .000 | 4 | 4.0 | 1 | 0 | .000 | 70.0 | .543 |
| Dan Straily | Mil | sp | 29 | 15 | 0 | .000 | 0 | 6 | .400 | 69 | 4.6 | 11 | 3 | .273 | 88.9 | .618 |
| Stephen Strasburg | NYA | sp | 29 | 24 | 0 | .000 | 0 | 17 | .708 | 135 | 5.6 | 12 | 3 | .250 | 93.7 | .674 |
| Chris Stratton | Tor | sp | 27 | 7 | 0 | .000 | 0 | 3 | .429 | 40 | 5.7 | 24 | 8 | .333 | 33.9 | .611 |
| Hunter Strickland | Ari | mr | 29 | 1 | 0 | .000 | 0 | 0 | .000 | 7 | 7.0 | 17 | 4 | .235 | 18.6 | .613 |
| Ross Stripling | Mia | mr | 28 | 23 | 0 | .000 | 0 | 13 | .565 | 115 | 5.0 | 6 | 0 | .000 | 88.7 | .650 |
| Marcus Stroman | SD | sp | 27 | 30 | 1 | .033 | 1 | 16 | .533 | 121 | 4.0 | 30 | 7 | .233 | 90.7 | .637 |
| Pedro Strop | Tor | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 25 | 5 | .200 | 21.4 | .629 |
| Andrew Suarez* | SF | sp | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 3 | .750 | 24.2 | .586 |
| Ranger Suarez* | Cle | sp | 22 | 11 | 1 | .091 | 0 | 3 | .273 | 37 | 3.4 | 8 | 4 | .500 | 76.9 | .600 |
| Wander Suero | | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 24 | 7 | .292 | 23.9 | .641 |
| Brent Suter* | LAN | sp | 28 | 10 | 0 | .000 | 0 | 3 | .300 | 36 | 3.6 | 15 | 2 | .133 | 42.8 | .628 |
| Anthony Swarzak | | mr | 32 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 8 | 6 | .750 | 18.3 | .662 |
| Noah Syndergaard | Det | sp | 25 | 25 | 1 | .040 | 1 | 18 | .720 | 121 | 4.8 | 6 | 1 | .167 | 94.4 | .675 |
| Jameson Taillon | Col | sp | 26 | 33 | 0 | .000 | 0 | 14 | .424 | 164 | 5.0 | 19 | 7 | .368 | 90.3 | .637 |
| Masahiro Tanaka | LAN | sp | 29 | 27 | 1 | .037 | 0 | 19 | .704 | 120 | 4.4 | 17 | 5 | .294 | 93.5 | .665 |
| Dillon Tate | Ari | sp | 24 | 5 | 0 | .000 | 0 | 1 | .200 | 25 | 5.0 | 4 | 3 | .750 | 40.5 | .567 |
| Julio Teheran | SD | sp | 27 | 36 | 0 | .000 | 0 | 14 | .389 | 154 | 4.3 | 24 | 6 | .250 | 84.8 | .638 |
| Ryan Tepera | Mil | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 4 | 0 | .000 | 18.5 | .623 |
| Jake Thompson | NYN | sp | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 3 | 1 | .333 | 19.2 | .606 |
| Tyler Thornburg | Bal | mr | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 2 | 1.000 | 21.8 | .613 |
| Trent Thornton | Pit | sp | 24 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 1 | 1 | 1.000 | 22.0 | .727 |
| Lewis Thorpe* | KC | sp | 22 | 21 | 0 | .000 | 0 | 3 | .143 | 77 | 3.7 | 16 | 4 | .250 | 80.9 | .588 |
| Josh Tomlin | Hou | sp | 33 | 19 | 5 | .263 | 1 | 11 | .579 | 62 | 3.3 | 9 | 2 | .222 | 100.7 | .681 |
| Touki Toussaint | Tex | sp | 22 | 10 | 0 | .000 | 0 | 1 | .100 | 44 | 4.4 | 37 | 18 | .486 | 31.9 | .572 |
| Blake Treinen | | cl | 30 | 1 | 0 | .000 | 0 | 0 | .000 | 12 | 12.0 | 3 | 0 | .000 | 19.9 | .621 |
| Andrew Triggs | Was | sp | 29 | 4 | 0 | .000 | 0 | 2 | .500 | 17 | 4.3 | 4 | 0 | .000 | 92.5 | .622 |
| Lou Trivino | | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 21 | 6 | .286 | 30.2 | .577 |
| Nick Tropeano | Min | sp | 27 | 16 | 0 | .000 | 0 | 9 | .563 | 92 | 5.8 | 6 | 3 | .500 | 96.7 | .636 |
| Sam Tuivailala | StL | mr | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 14 | 1 | .071 | 20.2 | .646 |
| Spencer Turnbull | SD | sp | 25 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 27.0 | .704 |
| Duane Underwood | Tex | sp | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 26 | 9 | .346 | 18.4 | .583 |
| Jose Urena | Tam | sp | 26 | 27 | 0 | .000 | 0 | 14 | .519 | 109 | 4.0 | 19 | 7 | .368 | 87.9 | .623 |
| Julio Urias* | Oak | sp | 21 | 5 | 0 | .000 | 0 | 1 | .200 | 19 | 3.8 | 5 | 1 | .200 | 80.2 | .599 |
| Framber Valdez* | Tex | sp | 24 | 9 | 0 | .000 | 0 | 2 | .222 | 24 | 2.7 | 7 | 1 | .143 | 64.7 | .583 |
| Jason Vargas* | Mil | sp | 35 | 24 | 1 | .042 | 0 | 9 | .375 | 123 | 5.1 | 13 | 5 | .385 | 87.4 | .638 |
| Vince Velasquez | StL | sp | 26 | 28 | 0 | .000 | 0 | 13 | .464 | 141 | 5.0 | 15 | 3 | .200 | 95.9 | .615 |
| Hector Velazquez | SD | sp | 29 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 23.0 | .652 |
| Justin Verlander | Pit | sp | 35 | 35 | 1 | .029 | 0 | 24 | .686 | 175 | 5.0 | 25 | 11 | .440 | 98.4 | .640 |
| Nick Vincent | StL | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 6 | 2 | .333 | 17.0 | .657 |
| Arodys Vizcaino | Cin | cl | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 7 | 2 | .286 | 21.4 | .603 |
| Michael Wacha | Bos | sp | 26 | 16 | 0 | .000 | 0 | 12 | .750 | 83 | 5.2 | 11 | 3 | .273 | 99.1 | .646 |
| Bobby Wahl | Sea | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 2 | 2 | 1.000 | 37.8 | .483 |
| Adam Wainwright | Min | sp | 36 | 8 | 0 | .000 | 0 | 4 | .500 | 26 | 3.3 | 5 | 3 | .600 | 92.4 | .655 |
| Adam Warren | Sea | mr | 30 | 1 | 0 | .000 | 0 | 0 | .000 | 2 | 2.0 | 27 | 6 | .222 | 19.8 | .630 |
| Tony Watson* | Tor | mr | 33 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 14 | 2 | .143 | 17.2 | .629 |
| Luke Weaver | Cle | sp | 24 | 21 | 1 | .048 | 1 | 11 | .524 | 73 | 3.5 | 11 | 8 | .727 | 93.5 | .655 |
| Patrick Weigel | Tex | sp | 23 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 0 | 0 | .000 | 4.0 | .500 |
| Zack Wheeler | Mia | sp | 28 | 19 | 0 | .000 | 0 | 8 | .421 | 54 | 2.8 | 15 | 10 | .667 | 95.9 | .606 |
| Forrest Whitley | Atl | sp | 20 | 26 | 0 | .000 | 0 | 10 | .385 | 138 | 5.3 | 25 | 5 | .200 | 89.1 | .574 |
| Brad Wieck* | StL | mr | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 35 | 9 | .257 | 20.0 | .544 |
| Taylor Williams | | sp | 26 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 6 | .400 | 14.7 | .614 |
| Trevor Williams | | sp | 26 | 14 | 0 | .000 | 0 | 8 | .571 | 63 | 4.5 | 17 | 4 | .235 | 61.1 | .642 |
| Justin Wilson* | Det | mr | 30 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 12 | 4 | .333 | 23.2 | .607 |
| Dan Winkler | LAN | mr | 28 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 19 | 3 | .158 | 20.2 | .600 |
| Matt Wisler | | sp | 25 | 11 | 0 | .000 | 0 | 4 | .364 | 46 | 4.2 | 15 | 4 | .267 | 64.2 | .653 |
| Nick Wittgren | StL | mr | 27 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 22 | 6 | .273 | 16.7 | .664 |
| Alex Wood* | Was | sp | 27 | 39 | 0 | .000 | 0 | 16 | .410 | 211 | 5.4 | 9 | 4 | .444 | 82.5 | .635 |
| Brandon Woodruff | ChA | sp | 25 | 14 | 0 | .000 | 0 | 5 | .357 | 35 | 2.5 | 11 | 5 | .455 | 63.5 | .626 |
| Ryan Yarbrough* | SD | sp | 26 | 5 | 0 | .000 | 0 | 2 | .400 | 18 | 3.6 | 3 | 1 | .333 | 39.9 | .654 |
| Kirby Yates | Bos | mr | 31 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 15 | 4 | .267 | 20.1 | .620 |
| Rob Zastryzny* | LAN | sp | 26 | 5 | 0 | .000 | 0 | 1 | .200 | 19 | 3.8 | 12 | 5 | .417 | 30.3 | .606 |
| Brad Ziegler | Pit | cl | 38 | 0 | 0 | .000 | 0 | 0 | .000 | 0 | 0.0 | 30 | 8 | .267 | 17.2 | .620 |
| Jordan Zimmermann | Pit | sp | 32 | 8 | 1 | .125 | 0 | 4 | .500 | 27 | 3.4 | 3 | 1 | .333 | 91.3 | .674 |
| Relief |
| Name | Team | P | Age | SVO | S | SV% | BS | BS% | HLD | IR | IRS | IR% | G | GR | GF | PCH/G | STR% |
| Albert Abreu | NYA | sp | 22 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 1 | 1.000 | 1 | 1 | 1 | 18.0 | .500 |
| Domingo Acevedo | Cle | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 12 | 1 | 1 | 90.8 | .635 |
| Chance Adams | KC | sp | 23 | 1 | 0 | .000 | 1 | 1.000 | 1 | 3 | 1 | .333 | 16 | 5 | 1 | 62.9 | .585 |
| Matt Albers | Mil | mr | 35 | 14 | 5 | .357 | 8 | .571 | 11 | 38 | 19 | .500 | 63 | 63 | 16 | 18.5 | .633 |
| Sandy Alcantara | Bos | sp | 22 | 10 | 6 | .600 | 4 | .400 | 4 | 41 | 15 | .366 | 52 | 52 | 24 | 22.8 | .565 |
| Scott Alexander* | LAA | mr | 28 | 14 | 11 | .786 | 2 | .143 | 8 | 30 | 5 | .167 | 48 | 48 | 22 | 20.2 | .606 |
| Kolby Allard* | Min | sp | 20 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 5 | 1 | 0 | 77.4 | .633 |
| Cody Allen | Bal | cl | 29 | 18 | 12 | .667 | 6 | .333 | 5 | 34 | 11 | .324 | 68 | 68 | 42 | 18.9 | .631 |
| Yency Almonte | Tam | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 1 | 1.000 | 2 | 2 | 0 | 37.0 | .568 |
| Dan Altavilla | LAN | mr | 25 | 3 | 2 | .667 | 1 | .333 | 1 | 9 | 2 | .222 | 16 | 16 | 6 | 18.6 | .560 |
| Jose Alvarado* | Ari | mr | 23 | 9 | 2 | .222 | 6 | .667 | 14 | 47 | 17 | .362 | 78 | 78 | 23 | 20.3 | .543 |
| Dario Alvarez* | Phi | mr | 29 | 5 | 2 | .400 | 1 | .200 | 5 | 35 | 14 | .400 | 41 | 41 | 17 | 26.4 | .571 |
| Jose Alvarez* | | mr | 29 | 0 | 0 | .000 | 0 | .000 | 13 | 25 | 7 | .280 | 58 | 58 | 16 | 21.2 | .643 |
| Yadier Alvarez | Tex | sp | 22 | 3 | 2 | .667 | 1 | .333 | 1 | 8 | 1 | .125 | 25 | 23 | 10 | 26.3 | .588 |
| Chase Anderson | NYN | sp | 30 | 1 | 1 | 1.000 | 0 | .000 | 0 | 1 | 0 | .000 | 36 | 6 | 3 | 80.9 | .628 |
| Tyler Anderson* | Bos | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 35 | 0 | 0 | 93.1 | .616 |
| Matt Andriese | ChN | sp | 28 | 1 | 1 | 1.000 | 0 | .000 | 3 | 12 | 7 | .583 | 38 | 19 | 12 | 55.8 | .643 |
| Victor Arano | Tex | mr | 23 | 13 | 7 | .538 | 6 | .462 | 9 | 51 | 20 | .392 | 90 | 90 | 42 | 20.2 | .627 |
| Chris Archer | SD | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 35 | 0 | 0 | 96.5 | .633 |
| Rogelio Armenteros | Sea | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 4 | 3 | .750 | 32 | 4 | 1 | 85.4 | .607 |
| Shawn Armstrong | | mr | 27 | 1 | 1 | 1.000 | 0 | .000 | 1 | 3 | 0 | .000 | 3 | 3 | 1 | 27.0 | .556 |
| Jake Arrieta | | sp | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 34 | 0 | 0 | 91.0 | .624 |
| Luis Avilan* | | mr | 28 | 8 | 5 | .625 | 1 | .125 | 8 | 16 | 1 | .063 | 44 | 44 | 14 | 17.6 | .605 |
| Pedro Baez | Was | mr | 30 | 1 | 0 | .000 | 1 | 1.000 | 1 | 3 | 0 | .000 | 9 | 9 | 4 | 22.0 | .586 |
| Luke Bard | Atl | mr | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 4 | 0 | .000 | 2 | 2 | 1 | 41.0 | .561 |
| Danny Barnes | SF | mr | 28 | 2 | 2 | 1.000 | 0 | .000 | 3 | 9 | 1 | .111 | 28 | 27 | 14 | 22.1 | .652 |
| Jacob Barnes | Tor | mr | 28 | 5 | 3 | .600 | 2 | .400 | 12 | 28 | 9 | .321 | 64 | 64 | 12 | 24.5 | .607 |
| Matt Barnes | | mr | 28 | 2 | 1 | .500 | 0 | .000 | 7 | 34 | 7 | .206 | 57 | 57 | 14 | 21.8 | .593 |
| Kyle Barraclough | Was | mr | 28 | 10 | 7 | .700 | 3 | .300 | 12 | 27 | 5 | .185 | 52 | 52 | 23 | 21.9 | .564 |
| Aaron Barrett | Atl | mr | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 4 | 1 | .250 | 6 | 6 | 2 | 30.0 | .628 |
| Jaime Barria | | sp | 21 | 1 | 1 | 1.000 | 0 | .000 | 0 | 4 | 2 | .500 | 9 | 4 | 2 | 66.6 | .651 |
| Trevor Bauer | NYA | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 27 | 1 | 1 | 91.2 | .615 |
| Buddy Baumann* | SF | mr | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 18 | 0 | 0 | 93.2 | .612 |
| Cam Bedrosian | | mr | 26 | 5 | 3 | .600 | 2 | .400 | 8 | 29 | 8 | .276 | 37 | 37 | 11 | 23.5 | .628 |
| Tyler Beede | NYA | sp | 25 | 2 | 2 | 1.000 | 0 | .000 | 1 | 12 | 3 | .250 | 24 | 15 | 8 | 46.5 | .605 |
| Matt Belisle | NYA | mr | 38 | 11 | 8 | .727 | 2 | .182 | 6 | 9 | 0 | .000 | 40 | 40 | 18 | 19.9 | .653 |
| Jose Berrios | Cle | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 1 | 1.000 | 26 | 1 | 1 | 96.5 | .624 |
| Dellin Betances | NYA | cl | 30 | 27 | 24 | .889 | 2 | .074 | 3 | 32 | 5 | .156 | 60 | 60 | 36 | 18.8 | .592 |
| Chad Bettis | LAA | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 28 | 0 | 0 | 89.3 | .651 |
| Joe Biagini | NYN | sp | 28 | 2 | 1 | .500 | 1 | .500 | 1 | 11 | 5 | .455 | 29 | 18 | 3 | 44.9 | .626 |
| Jesse Biddle* | Col | mr | 26 | 7 | 4 | .571 | 3 | .429 | 9 | 18 | 6 | .333 | 41 | 41 | 18 | 21.0 | .592 |
| Shane Bieber | | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 5 | 0 | .000 | 34 | 10 | 5 | 69.9 | .674 |
| Paul Blackburn | ChA | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 5 | 0 | 0 | 94.6 | .634 |
| Jerry Blevins* | Sea | mr | 34 | 4 | 3 | .750 | 1 | .250 | 14 | 33 | 5 | .152 | 61 | 61 | 9 | 15.6 | .609 |
| Ryan Borucki* | LAN | sp | 24 | 1 | 0 | .000 | 1 | 1.000 | 2 | 5 | 2 | .400 | 18 | 12 | 1 | 40.5 | .619 |
| Matthew Bowman | Min | mr | 27 | 5 | 2 | .400 | 2 | .400 | 4 | 26 | 7 | .269 | 37 | 37 | 17 | 20.1 | .637 |
| Brad Boxberger | LAA | mr | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 5 | 5 | 2 | 28.0 | .579 |
| Matt Boyd* | | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 17 | 0 | 0 | 89.5 | .641 |
| Brad Brach | SD | cl | 32 | 34 | 28 | .824 | 6 | .176 | 6 | 27 | 8 | .296 | 77 | 77 | 52 | 17.2 | .604 |
| Silvino Bracho | | mr | 25 | 1 | 0 | .000 | 1 | 1.000 | 2 | 12 | 4 | .333 | 20 | 20 | 7 | 23.8 | .585 |
| Chasen Bradford | Tam | mr | 28 | 1 | 1 | 1.000 | 0 | .000 | 2 | 7 | 1 | .143 | 26 | 26 | 12 | 20.3 | .650 |
| Archie Bradley | Ari | mr | 25 | 26 | 18 | .692 | 8 | .308 | 3 | 45 | 18 | .400 | 79 | 79 | 50 | 18.2 | .632 |
| Steven Brault* | ChN | sp | 26 | 3 | 2 | .667 | 1 | .333 | 2 | 10 | 3 | .300 | 29 | 17 | 10 | 48.6 | .614 |
| John Brebbia | | mr | 28 | 1 | 1 | 1.000 | 0 | .000 | 4 | 4 | 1 | .250 | 22 | 22 | 6 | 22.8 | .697 |
| Zach Britton* | | cl | 30 | 10 | 8 | .800 | 2 | .200 | 8 | 16 | 3 | .188 | 32 | 32 | 12 | 16.5 | .629 |
| Clay Buchholz | NYN | sp | 33 | 0 | 0 | .000 | 0 | .000 | 0 | 3 | 1 | .333 | 8 | 3 | 2 | 73.4 | .615 |
| Ryan Buchter* | SF | mr | 31 | 0 | 0 | .000 | 0 | .000 | 4 | 4 | 0 | .000 | 8 | 8 | 1 | 22.1 | .599 |
| Walker Buehler | Cle | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 15 | 0 | 0 | 90.3 | .573 |
| Madison Bumgarner* | Tor | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 26 | 0 | 0 | 86.8 | .668 |
| Aaron Bummer* | | mr | 24 | 1 | 1 | 1.000 | 0 | .000 | 1 | 8 | 3 | .375 | 9 | 9 | 3 | 22.0 | .561 |
| Dylan Bundy | LAA | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 35 | 0 | 0 | 92.2 | .652 |
| Nick Burdi | LAA | mr | 25 | 0 | 0 | .000 | 0 | .000 | 1 | 3 | 2 | .667 | 5 | 5 | 1 | 24.4 | .689 |
| Corbin Burnes | Ari | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 35 | 3 | 0 | 87.9 | .595 |
| Beau Burrows | Cle | sp | 21 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 14 | 1 | 0 | 81.8 | .580 |
| Matt Bush | SF | mr | 32 | 11 | 5 | .455 | 6 | .545 | 23 | 31 | 5 | .161 | 68 | 68 | 17 | 19.2 | .623 |
| Genesis Cabrera* | Ari | sp | 21 | 4 | 2 | .500 | 1 | .250 | 6 | 44 | 19 | .432 | 62 | 60 | 10 | 20.5 | .565 |
| Carter Capps | Phi | mr | 27 | 3 | 1 | .333 | 2 | .667 | 0 | 5 | 2 | .400 | 7 | 7 | 4 | 25.1 | .608 |
| Carlos Carrasco | | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 0 | 0 | 88.9 | .662 |
| Cody Carroll | NYN | mr | 25 | 1 | 0 | .000 | 1 | 1.000 | 0 | 4 | 2 | .500 | 6 | 6 | 1 | 31.2 | .476 |
| Andrew Cashner | Bal | sp | 31 | 1 | 1 | 1.000 | 0 | .000 | 0 | 8 | 3 | .375 | 24 | 15 | 4 | 50.9 | .649 |
| Diego Castillo | LAN | mr | 24 | 14 | 6 | .429 | 8 | .571 | 12 | 48 | 15 | .313 | 87 | 87 | 32 | 20.8 | .614 |
| Jose Castillo* | Tam | mr | 22 | 8 | 6 | .750 | 1 | .125 | 2 | 22 | 6 | .273 | 32 | 32 | 21 | 15.5 | .591 |
| Luis Castillo | | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 32 | 1 | 0 | 94.8 | .648 |
| Miguel Castro | Tex | mr | 23 | 12 | 9 | .750 | 3 | .250 | 6 | 48 | 21 | .438 | 62 | 62 | 32 | 26.3 | .628 |
| Simon Castro | LAN | mr | 30 | 6 | 4 | .667 | 1 | .167 | 11 | 29 | 7 | .241 | 60 | 60 | 19 | 19.8 | .582 |
| Brett Cecil* | Det | mr | 31 | 6 | 3 | .500 | 3 | .500 | 12 | 15 | 3 | .200 | 34 | 34 | 10 | 18.9 | .653 |
| Xavier Cedeno* | Mia | mr | 31 | 5 | 2 | .400 | 2 | .400 | 12 | 20 | 7 | .350 | 45 | 45 | 10 | 14.6 | .626 |
| Luis Cessa | | sp | 26 | 0 | 0 | .000 | 0 | .000 | 1 | 3 | 1 | .333 | 9 | 6 | 1 | 50.6 | .598 |
| Jhoulys Chacin | Det | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 16 | 0 | 0 | 88.9 | .618 |
| Andrew Chafin* | Was | mr | 28 | 8 | 4 | .500 | 2 | .250 | 15 | 21 | 3 | .143 | 51 | 51 | 7 | 18.7 | .611 |
| Aroldis Chapman* | Oak | cl | 30 | 19 | 17 | .895 | 2 | .105 | 7 | 20 | 4 | .200 | 50 | 50 | 39 | 18.4 | .584 |
| J.T. Chargois | LAN | mr | 27 | 3 | 2 | .667 | 0 | .000 | 0 | 8 | 2 | .250 | 15 | 15 | 9 | 19.8 | .593 |
| Tyler Chatwood | | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 28 | 0 | 0 | 90.3 | .592 |
| Jesse Chavez | StL | sp | 34 | 8 | 5 | .625 | 3 | .375 | 7 | 41 | 13 | .317 | 72 | 72 | 16 | 19.9 | .626 |
| Wei-Yin Chen* | Min | sp | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 27 | 0 | 0 | 94.8 | .666 |
| Yonny Chirinos | ChN | sp | 24 | 4 | 2 | .500 | 2 | .500 | 3 | 25 | 11 | .440 | 43 | 41 | 17 | 24.1 | .655 |
| Adam Cimber | LAA | mr | 27 | 3 | 2 | .667 | 1 | .333 | 0 | 22 | 9 | .409 | 29 | 29 | 17 | 22.5 | .688 |
| Tony Cingrani* | Hou | mr | 28 | 12 | 7 | .583 | 5 | .417 | 2 | 27 | 8 | .296 | 54 | 54 | 33 | 29.6 | .589 |
| Steve Cishek | Pit | mr | 32 | 8 | 4 | .500 | 3 | .375 | 13 | 31 | 11 | .355 | 65 | 65 | 19 | 18.0 | .636 |
| Brian Clark* | | mr | 25 | 9 | 3 | .333 | 5 | .556 | 7 | 37 | 10 | .270 | 64 | 64 | 29 | 24.7 | .625 |
| Taylor Clarke | Mil | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 3 | 0 | 0 | 71.7 | .595 |
| Alex Claudio* | Cin | mr | 26 | 40 | 32 | .800 | 8 | .200 | 3 | 45 | 13 | .289 | 68 | 68 | 54 | 16.7 | .654 |
| Michael Clevinger | Bos | sp | 27 | 10 | 5 | .500 | 5 | .500 | 8 | 38 | 15 | .395 | 61 | 58 | 17 | 26.0 | .600 |
| Tyler Clippard | Min | mr | 33 | 8 | 4 | .500 | 4 | .500 | 11 | 27 | 16 | .593 | 52 | 52 | 19 | 21.7 | .607 |
| Corbin Clouse* | | mr | 23 | 1 | 0 | .000 | 1 | 1.000 | 1 | 5 | 1 | .200 | 7 | 7 | 4 | 35.6 | .538 |
| Alex Cobb | | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 31 | 0 | 0 | 94.9 | .642 |
| Gerrit Cole | LAA | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 35 | 0 | 0 | 97.1 | .670 |
| Alex Colome | SF | cl | 29 | 9 | 5 | .556 | 3 | .333 | 15 | 19 | 7 | .368 | 66 | 66 | 21 | 20.6 | .624 |
| Adam Conley* | | sp | 28 | 1 | 1 | 1.000 | 0 | .000 | 2 | 8 | 0 | .000 | 11 | 6 | 1 | 44.0 | .643 |
| Patrick Corbin* | | sp | 28 | 0 | 0 | .000 | 0 | .000 | 4 | 5 | 2 | .400 | 37 | 9 | 1 | 76.8 | .624 |
| Nestor Cortes* | Tam | mr | 23 | 10 | 3 | .300 | 6 | .600 | 10 | 41 | 11 | .268 | 68 | 67 | 19 | 23.6 | .624 |
| Daniel Coulombe* | ChA | mr | 28 | 5 | 0 | .000 | 5 | 1.000 | 13 | 35 | 13 | .371 | 53 | 53 | 19 | 18.6 | .635 |
| Kyle Crick | Cle | mr | 25 | 5 | 2 | .400 | 3 | .600 | 9 | 38 | 12 | .316 | 57 | 57 | 18 | 25.8 | .586 |
| Johnny Cueto | Mil | sp | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 16 | 0 | 0 | 84.9 | .616 |
| John Curtiss | Was | mr | 25 | 2 | 0 | .000 | 0 | .000 | 9 | 37 | 11 | .297 | 60 | 60 | 15 | 22.7 | .599 |
| Yu Darvish | NYA | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 10 | 0 | 0 | 95.3 | .652 |
| Zach Davies | | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 21 | 0 | 0 | 86.7 | .652 |
| Austin Davis* | Oak | mr | 25 | 0 | 0 | .000 | 0 | .000 | 1 | 0 | 0 | .000 | 2 | 2 | 1 | 16.5 | .636 |
| Wade Davis | Det | cl | 32 | 8 | 5 | .625 | 3 | .375 | 12 | 20 | 3 | .150 | 56 | 56 | 16 | 20.4 | .631 |
| Enyel de los Santos | Oak | sp | 22 | 9 | 5 | .556 | 4 | .444 | 4 | 27 | 8 | .296 | 27 | 27 | 10 | 26.4 | .613 |
| Jacob deGrom | Tor | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 38 | 0 | 0 | 87.6 | .649 |
| Randall Delgado | Mil | mr | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 16 | 0 | 0 | 90.1 | .629 |
| Anthony DeSclafani | Ari | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 22 | 0 | 0 | 96.9 | .629 |
| Chris Devenski | Det | mr | 27 | 21 | 18 | .857 | 3 | .143 | 8 | 27 | 5 | .185 | 54 | 54 | 37 | 20.4 | .665 |
| Dayan Diaz | NYA | mr | 29 | 1 | 0 | .000 | 0 | .000 | 0 | 11 | 4 | .364 | 11 | 11 | 5 | 20.7 | .636 |
| Edwin Diaz | Cle | cl | 24 | 21 | 18 | .857 | 3 | .143 | 0 | 41 | 13 | .317 | 62 | 62 | 52 | 20.9 | .639 |
| Miguel Diaz | Tex | mr | 23 | 1 | 0 | .000 | 1 | 1.000 | 5 | 13 | 4 | .308 | 25 | 25 | 8 | 24.7 | .603 |
| Jake Diekman* | SF | mr | 31 | 11 | 7 | .636 | 2 | .182 | 8 | 25 | 6 | .240 | 50 | 50 | 18 | 23.3 | .576 |
| Marcos Diplan | Atl | sp | 21 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 1 | 1 | 42.0 | .690 |
| Seranthony Dominguez | | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 5 | 3 | .600 | 13 | 5 | 2 | 68.5 | .578 |
| Sean Doolittle* | SF | cl | 31 | 32 | 28 | .875 | 4 | .125 | 2 | 21 | 6 | .286 | 64 | 64 | 52 | 18.3 | .679 |
| Brian Duensing* | StL | mr | 35 | 2 | 1 | .500 | 1 | .500 | 10 | 18 | 4 | .222 | 33 | 33 | 9 | 16.1 | .600 |
| Danny Duffy* | SF | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 34 | 0 | 0 | 89.8 | .629 |
| Zach Duke* | KC | mr | 35 | 14 | 11 | .786 | 2 | .143 | 7 | 39 | 6 | .154 | 67 | 67 | 36 | 14.0 | .612 |
| Mike Dunn* | Min | mr | 33 | 3 | 2 | .667 | 1 | .333 | 2 | 13 | 3 | .231 | 20 | 20 | 8 | 15.3 | .620 |
| Sam Dyson | Tam | cl | 30 | 9 | 6 | .667 | 3 | .333 | 2 | 14 | 2 | .143 | 21 | 21 | 15 | 17.4 | .607 |
| Mark Ecker | Bal | mr | 23 | 0 | 0 | .000 | 0 | .000 | 1 | 0 | 0 | .000 | 2 | 2 | 0 | 22.0 | .545 |
| Carl Edwards Jr. | Mia | mr | 26 | 13 | 10 | .769 | 2 | .154 | 8 | 19 | 2 | .105 | 58 | 58 | 25 | 20.5 | .587 |
| Zach Eflin | Tam | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 20 | 0 | 0 | 82.3 | .657 |
| Jerad Eickhoff | LAA | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 5 | 0 | 0 | 92.8 | .642 |
| Nathan Eovaldi | Ari | sp | 28 | 6 | 3 | .500 | 3 | .500 | 17 | 48 | 10 | .208 | 84 | 81 | 20 | 24.0 | .624 |
| Robbie Erlin* | Tex | sp | 27 | 0 | 0 | .000 | 0 | .000 | 1 | 4 | 0 | .000 | 33 | 3 | 1 | 83.7 | .646 |
| Luis Escobar | Bos | sp | 22 | 3 | 2 | .667 | 1 | .333 | 3 | 12 | 4 | .333 | 15 | 15 | 9 | 24.3 | .581 |
| Thomas Eshelman | ChA | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 18 | 0 | 0 | 92.4 | .668 |
| Carlos Estevez | Min | mr | 25 | 0 | 0 | .000 | 0 | .000 | 1 | 2 | 1 | .500 | 9 | 9 | 6 | 20.3 | .617 |
| Marco Estrada | Cin | sp | 34 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 21 | 0 | 0 | 95.0 | .613 |
| Jeurys Familia | | cl | 28 | 21 | 17 | .810 | 4 | .190 | 4 | 31 | 10 | .323 | 56 | 56 | 43 | 18.8 | .607 |
| Jacob Faria | Tam | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 14 | 0 | 0 | 93.5 | .616 |
| Erick Fedde | Cle | sp | 25 | 1 | 0 | .000 | 1 | 1.000 | 1 | 7 | 0 | .000 | 17 | 7 | 3 | 58.6 | .607 |
| Michael Feliz | Det | mr | 25 | 1 | 1 | 1.000 | 0 | .000 | 1 | 3 | 2 | .667 | 32 | 6 | 2 | 84.1 | .618 |
| Riley Ferrell | Oak | mr | 24 | 2 | 2 | 1.000 | 0 | .000 | 2 | 10 | 1 | .100 | 12 | 12 | 2 | 19.7 | .610 |
| Josh Fields | Phi | mr | 32 | 11 | 9 | .818 | 2 | .182 | 19 | 32 | 9 | .281 | 66 | 66 | 19 | 18.1 | .639 |
| Mike Fiers | StL | sp | 33 | 0 | 0 | .000 | 0 | .000 | 0 | 5 | 1 | .200 | 31 | 10 | 7 | 72.3 | .641 |
| Brandon Finnegan* | Oak | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 12 | 0 | 0 | 92.3 | .616 |
| Doug Fister | Mil | sp | 34 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 10 | 0 | 0 | 88.7 | .631 |
| Jack Flaherty | Bal | sp | 22 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 32 | 1 | 0 | 94.8 | .640 |
| Chris Flexen | Hou | sp | 23 | 5 | 3 | .600 | 2 | .400 | 0 | 22 | 9 | .409 | 39 | 25 | 22 | 62.0 | .627 |
| Jose Flores | Cin | mr | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 1 | 0 | 34.0 | .471 |
| Brian Flynn* | Phi | mr | 28 | 2 | 2 | 1.000 | 0 | .000 | 0 | 7 | 4 | .571 | 40 | 9 | 4 | 80.9 | .623 |
| Mike Foltynewicz | | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 5 | 5 | 1.000 | 24 | 5 | 3 | 78.3 | .643 |
| Wilmer Font | SF | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 35 | 0 | 0 | 86.2 | .651 |
| Kyle Freeland* | ChA | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 27 | 0 | 0 | 90.2 | .619 |
| Sam Freeman* | NYN | mr | 31 | 4 | 0 | .000 | 3 | .750 | 2 | 9 | 5 | .556 | 23 | 23 | 6 | 20.4 | .569 |
| Max Fried* | Ari | sp | 24 | 1 | 0 | .000 | 1 | 1.000 | 1 | 14 | 6 | .429 | 27 | 27 | 8 | 19.2 | .565 |
| Jace Fry* | | mr | 24 | 4 | 1 | .250 | 2 | .500 | 5 | 23 | 3 | .130 | 34 | 34 | 16 | 25.2 | .582 |
| Carson Fulmer | ChA | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 2 | 2 | 0 | 20.0 | .550 |
| Michael Fulmer | Mia | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 28 | 0 | 0 | 95.3 | .646 |
| Giovanny Gallegos | SF | mr | 26 | 8 | 6 | .750 | 2 | .250 | 4 | 31 | 6 | .194 | 65 | 65 | 25 | 25.1 | .643 |
| John Gant | Hou | sp | 25 | 1 | 1 | 1.000 | 0 | .000 | 0 | 13 | 2 | .154 | 33 | 17 | 14 | 66.7 | .624 |
| Jaime Garcia* | Atl | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 34 | 0 | 0 | 103.8 | .622 |
| Luis Garcia | Bos | mr | 31 | 23 | 16 | .696 | 7 | .304 | 5 | 28 | 5 | .179 | 52 | 52 | 35 | 19.9 | .632 |
| Yimi Garcia | SD | mr | 27 | 5 | 3 | .600 | 1 | .200 | 15 | 27 | 7 | .259 | 38 | 38 | 7 | 16.9 | .664 |
| Nick Gardewine | Cle | mr | 24 | 2 | 0 | .000 | 2 | 1.000 | 4 | 7 | 4 | .571 | 13 | 13 | 3 | 26.4 | .586 |
| Amir Garrett* | Tex | sp | 26 | 3 | 1 | .333 | 2 | .667 | 1 | 30 | 7 | .233 | 51 | 31 | 13 | 47.7 | .602 |
| Matt Garza | Atl | sp | 34 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 1 | 0 | 37.0 | .541 |
| Kevin Gausman | | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 0 | 0 | 94.9 | .637 |
| Cory Gearrin | Atl | mr | 32 | 9 | 9 | 1.000 | 0 | .000 | 10 | 39 | 15 | .385 | 60 | 60 | 28 | 24.2 | .614 |
| Domingo German | Oak | sp | 25 | 1 | 0 | .000 | 1 | 1.000 | 3 | 10 | 7 | .700 | 25 | 16 | 6 | 48.7 | .645 |
| Ian Gibaut | | mr | 24 | 1 | 1 | 1.000 | 0 | .000 | 3 | 11 | 5 | .455 | 13 | 13 | 6 | 23.5 | .650 |
| Kyle Gibson | Bos | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 36 | 0 | 0 | 90.0 | .618 |
| Ken Giles | Sea | cl | 27 | 21 | 15 | .714 | 6 | .286 | 4 | 46 | 11 | .239 | 73 | 73 | 50 | 18.0 | .652 |
| Lucas Giolito | Col | sp | 23 | 2 | 0 | .000 | 0 | .000 | 1 | 4 | 1 | .250 | 39 | 9 | 3 | 74.5 | .624 |
| Mychal Givens | Cin | mr | 28 | 8 | 3 | .375 | 5 | .625 | 14 | 33 | 5 | .152 | 71 | 71 | 17 | 19.1 | .609 |
| Tyler Glasnow | Oak | sp | 24 | 1 | 1 | 1.000 | 0 | .000 | 0 | 0 | 0 | .000 | 34 | 1 | 1 | 91.2 | .612 |
| Koda Glover | Cle | mr | 25 | 3 | 0 | .000 | 3 | 1.000 | 2 | 11 | 4 | .364 | 16 | 16 | 4 | 25.6 | .646 |
| Zack Godley | NYN | sp | 28 | 2 | 1 | .500 | 1 | .500 | 1 | 13 | 1 | .077 | 43 | 18 | 9 | 59.9 | .625 |
| Luiz Gohara* | Sea | sp | 21 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 5 | 0 | 0 | 98.6 | .641 |
| Austin Gomber* | StL | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 33 | 1 | 1 | 89.2 | .607 |
| Stephen Gonsalves* | KC | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 3 | 1 | .333 | 34 | 1 | 0 | 91.0 | .592 |
| Marco Gonzales* | | sp | 26 | 0 | 0 | .000 | 0 | .000 | 1 | 2 | 2 | 1.000 | 20 | 5 | 2 | 74.8 | .621 |
| Gio Gonzalez* | Cin | sp | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 34 | 0 | 0 | 93.7 | .620 |
| Nick Goody | Oak | mr | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 0 | .000 | 3 | 3 | 1 | 27.3 | .610 |
| Matt Grace* | LAA | mr | 29 | 2 | 1 | .500 | 1 | .500 | 2 | 7 | 1 | .143 | 11 | 11 | 5 | 25.5 | .618 |
| Kendall Graveman | Cle | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 10 | 0 | 0 | 96.1 | .626 |
| Jon Gray | | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 1 | 0 | 86.5 | .636 |
| Sonny Gray | SF | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 37 | 0 | 0 | 90.8 | .626 |
| Chad Green | ChN | mr | 27 | 24 | 18 | .750 | 6 | .250 | 4 | 32 | 8 | .250 | 69 | 69 | 50 | 19.1 | .608 |
| Shane Greene | Bal | mr | 29 | 6 | 2 | .333 | 2 | .333 | 8 | 28 | 11 | .393 | 47 | 47 | 16 | 16.1 | .612 |
| Zack Greinke | Bal | sp | 34 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 31 | 0 | 0 | 99.4 | .667 |
| Robert Gsellman | Mia | sp | 24 | 0 | 0 | .000 | 0 | .000 | 1 | 3 | 1 | .333 | 8 | 7 | 1 | 25.3 | .629 |
| Deolis Guerra | Atl | mr | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 1 | 1 | 37.0 | .676 |
| Junior Guerra | ChN | sp | 33 | 0 | 0 | .000 | 0 | .000 | 0 | 4 | 1 | .250 | 5 | 4 | 2 | 40.0 | .575 |
| Josh Hader* | Oak | mr | 24 | 7 | 5 | .714 | 1 | .143 | 10 | 12 | 2 | .167 | 49 | 49 | 17 | 24.0 | .591 |
| Matt Hall* | ChN | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 2 | 1.000 | 1 | 1 | 1 | 19.0 | .632 |
| Cole Hamels* | Cin | sp | 34 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 34 | 0 | 0 | 90.2 | .613 |
| Jason Hammel | Sea | sp | 35 | 1 | 0 | .000 | 1 | 1.000 | 0 | 1 | 1 | 1.000 | 37 | 3 | 0 | 90.5 | .657 |
| Brad Hand* | SD | cl | 28 | 13 | 9 | .692 | 3 | .231 | 13 | 38 | 2 | .053 | 69 | 69 | 29 | 20.4 | .631 |
| Alec Hansen | KC | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 12 | 2 | .167 | 10 | 9 | 8 | 34.0 | .615 |
| J.A. Happ* | ChN | sp | 35 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 31 | 0 | 0 | 97.4 | .631 |
| Blaine Hardy* | Mil | mr | 31 | 6 | 2 | .333 | 2 | .333 | 17 | 27 | 9 | .333 | 63 | 62 | 15 | 20.9 | .620 |
| Will Harris | Det | mr | 33 | 4 | 1 | .250 | 3 | .750 | 4 | 9 | 3 | .333 | 33 | 33 | 17 | 21.9 | .647 |
| Hunter Harvey | Tex | sp | 23 | 2 | 1 | .500 | 0 | .000 | 0 | 4 | 0 | .000 | 27 | 5 | 3 | 75.7 | .574 |
| Matt Harvey | | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 28 | 0 | 0 | 86.3 | .640 |
| Andrew Heaney* | | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 29 | 0 | 0 | 90.4 | .634 |
| Taylor Hearn* | KC | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 0 | .000 | 17 | 3 | 3 | 74.9 | .584 |
| Ben Heller | ChA | mr | 26 | 0 | 0 | .000 | 0 | .000 | 2 | 1 | 1 | 1.000 | 5 | 5 | 1 | 16.8 | .690 |
| Jeremy Hellickson | LAN | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 8 | 0 | 0 | 73.0 | .663 |
| Ryan Helsley | Tam | sp | 23 | 0 | 0 | .000 | 0 | .000 | 3 | 21 | 13 | .619 | 23 | 23 | 3 | 21.0 | .593 |
| Heath Hembree | SD | mr | 29 | 7 | 4 | .571 | 2 | .286 | 24 | 49 | 14 | .286 | 85 | 84 | 18 | 17.5 | .628 |
| Kyle Hendricks | Was | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 38 | 0 | 0 | 88.6 | .658 |
| Liam Hendriks | ChN | mr | 29 | 3 | 1 | .333 | 2 | .667 | 7 | 20 | 5 | .250 | 43 | 43 | 6 | 21.5 | .624 |
| Jimmy Herget | Col | mr | 24 | 6 | 4 | .667 | 2 | .333 | 17 | 33 | 11 | .333 | 86 | 85 | 23 | 19.5 | .601 |
| Kevin Herget | LAA | mr | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 20 | 0 | 0 | 95.9 | .622 |
| David Hernandez | Mil | mr | 33 | 10 | 2 | .200 | 5 | .500 | 9 | 14 | 4 | .286 | 47 | 47 | 15 | 18.4 | .619 |
| Felix Hernandez | Tor | sp | 32 | 1 | 0 | .000 | 1 | 1.000 | 1 | 3 | 1 | .333 | 21 | 5 | 1 | 79.2 | .616 |
| Kelvin Herrera | Det | cl | 28 | 2 | 1 | .500 | 1 | .500 | 3 | 15 | 3 | .200 | 24 | 24 | 9 | 23.0 | .609 |
| Ronald Herrera | Atl | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 1 | 0 | 100.4 | .594 |
| Trevor Hildenberger | Min | mr | 27 | 28 | 21 | .750 | 7 | .250 | 3 | 40 | 7 | .175 | 58 | 58 | 40 | 20.7 | .685 |
| Rich Hill* | Was | sp | 38 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 0 | 0 | 83.8 | .594 |
| Yoshihisa Hirano | LAN | mr | 34 | 5 | 1 | .200 | 4 | .800 | 4 | 40 | 10 | .250 | 63 | 63 | 13 | 17.7 | .610 |
| Jeff Hoffman | Sea | sp | 25 | 1 | 1 | 1.000 | 0 | .000 | 1 | 2 | 0 | .000 | 24 | 7 | 5 | 76.1 | .624 |
| Jonathan Holder | LAA | mr | 25 | 0 | 0 | .000 | 0 | .000 | 4 | 25 | 8 | .320 | 41 | 41 | 10 | 22.4 | .656 |
| Derek Holland* | NYN | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 3 | 1 | 1 | 68.0 | .613 |
| Greg Holland | | cl | 32 | 19 | 14 | .737 | 5 | .263 | 7 | 26 | 4 | .154 | 45 | 45 | 27 | 17.5 | .605 |
| J.J. Hoover | Bal | mr | 30 | 7 | 6 | .857 | 1 | .143 | 2 | 23 | 6 | .261 | 37 | 36 | 27 | 22.7 | .621 |
| Sam Howard* | KC | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 1 | 1 | 34.0 | .647 |
| James Hoyt | Cin | mr | 31 | 5 | 4 | .800 | 1 | .200 | 5 | 25 | 7 | .280 | 43 | 43 | 14 | 18.9 | .614 |
| Chih-Wei Hu | Mia | mr | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 27 | 0 | 0 | 90.5 | .631 |
| Dakota Hudson | KC | sp | 23 | 11 | 5 | .455 | 5 | .455 | 9 | 57 | 16 | .281 | 79 | 79 | 12 | 22.4 | .607 |
| Jared Hughes | Bos | mr | 32 | 3 | 3 | 1.000 | 0 | .000 | 2 | 18 | 6 | .333 | 30 | 30 | 16 | 19.1 | .584 |
| Tommy Hunter | Phi | mr | 31 | 4 | 4 | 1.000 | 0 | .000 | 4 | 12 | 3 | .250 | 35 | 35 | 13 | 20.9 | .658 |
| Raisel Iglesias | | cl | 28 | 34 | 30 | .882 | 3 | .088 | 8 | 51 | 13 | .255 | 80 | 80 | 57 | 16.3 | .612 |
| Gregory Infante | Cin | mr | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 15 | 5 | .333 | 19 | 19 | 11 | 19.9 | .604 |
| Luke Jackson | KC | mr | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 1 | 1.000 | 33 | 1 | 1 | 95.2 | .601 |
| Kenley Jansen | | cl | 30 | 30 | 26 | .867 | 4 | .133 | 0 | 18 | 1 | .056 | 55 | 55 | 46 | 18.5 | .649 |
| Jeremy Jeffress | Atl | mr | 30 | 12 | 7 | .583 | 5 | .417 | 7 | 35 | 17 | .486 | 60 | 60 | 29 | 27.6 | .592 |
| Dan Jennings* | Was | mr | 31 | 2 | 1 | .500 | 1 | .500 | 7 | 30 | 13 | .433 | 56 | 56 | 20 | 21.0 | .593 |
| Joe Jimenez | KC | mr | 23 | 9 | 3 | .333 | 5 | .556 | 16 | 37 | 13 | .351 | 80 | 80 | 26 | 17.2 | .611 |
| Brian Johnson* | Mil | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 12 | 0 | 0 | 83.9 | .584 |
| Connor Jones | Mil | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 0 | 0 | 85.0 | .553 |
| Nate Jones | Was | mr | 32 | 5 | 2 | .400 | 1 | .200 | 12 | 26 | 5 | .192 | 48 | 48 | 9 | 19.0 | .640 |
| Jake Junis | LAN | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 2 | 1.000 | 30 | 1 | 1 | 91.3 | .636 |
| Tommy Kahnle | LAA | mr | 28 | 25 | 22 | .880 | 3 | .120 | 2 | 27 | 3 | .111 | 44 | 44 | 34 | 17.1 | .625 |
| Keone Kela | | mr | 25 | 7 | 4 | .571 | 3 | .429 | 21 | 24 | 4 | .167 | 62 | 62 | 19 | 20.2 | .650 |
| Brad Keller | | sp | 22 | 1 | 1 | 1.000 | 0 | .000 | 2 | 7 | 2 | .286 | 24 | 15 | 3 | 43.2 | .622 |
| Mitch Keller | | sp | 22 | 2 | 1 | .500 | 1 | .500 | 1 | 7 | 1 | .143 | 18 | 11 | 8 | 45.0 | .621 |
| Joe Kelly | Mil | mr | 30 | 6 | 4 | .667 | 2 | .333 | 12 | 40 | 8 | .200 | 64 | 64 | 15 | 21.5 | .598 |
| Brett Kennedy | Cin | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 0 | 0 | 105.0 | .590 |
| Ian Kennedy | Hou | sp | 33 | 6 | 4 | .667 | 2 | .333 | 0 | 12 | 3 | .250 | 39 | 17 | 17 | 74.4 | .614 |
| Clayton Kershaw* | | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 25 | 1 | 1 | 93.6 | .668 |
| Dallas Keuchel* | ChN | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 36 | 0 | 0 | 95.9 | .618 |
| Franklyn Kilome | | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 1 | 1.000 | 10 | 2 | 1 | 71.5 | .566 |
| Craig Kimbrel | Tor | cl | 30 | 23 | 18 | .783 | 5 | .217 | 3 | 25 | 4 | .160 | 59 | 59 | 48 | 19.9 | .613 |
| Nick Kingham | Hou | sp | 26 | 3 | 3 | 1.000 | 0 | .000 | 0 | 9 | 3 | .333 | 30 | 13 | 12 | 72.6 | .658 |
| Brandon Kintzler | Col | cl | 33 | 14 | 8 | .571 | 6 | .429 | 7 | 41 | 14 | .341 | 68 | 68 | 28 | 18.4 | .637 |
| Andrew Kittredge | Mia | mr | 28 | 4 | 3 | .750 | 1 | .250 | 3 | 20 | 4 | .200 | 40 | 40 | 12 | 24.6 | .627 |
| Corey Kluber | SF | sp | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 37 | 0 | 0 | 95.6 | .664 |
| Corey Knebel | | cl | 26 | 14 | 10 | .714 | 4 | .286 | 8 | 16 | 4 | .250 | 50 | 50 | 23 | 20.2 | .610 |
| Tom Koehler | Hou | sp | 32 | 0 | 0 | .000 | 0 | .000 | 1 | 0 | 0 | .000 | 2 | 1 | 0 | 57.0 | .623 |
| George Kontos | | mr | 33 | 8 | 6 | .750 | 2 | .250 | 4 | 22 | 1 | .045 | 38 | 38 | 21 | 23.1 | .655 |
| Chad Kuhl | Col | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 11 | 0 | 0 | 100.1 | .618 |
| Brady Lail | Hou | sp | 24 | 1 | 0 | .000 | 1 | 1.000 | 0 | 8 | 1 | .125 | 28 | 9 | 8 | 80.9 | .620 |
| Eric Lauer* | Hou | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 3 | 1 | .333 | 22 | 5 | 5 | 93.7 | .625 |
| Derek Law | Mia | mr | 27 | 12 | 7 | .583 | 5 | .417 | 9 | 36 | 16 | .444 | 64 | 64 | 27 | 20.3 | .603 |
| Mike Leake | Cin | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 34 | 0 | 0 | 90.6 | .654 |
| Wade LeBlanc* | Was | mr | 33 | 0 | 0 | .000 | 0 | .000 | 1 | 3 | 3 | 1.000 | 6 | 6 | 0 | 25.5 | .627 |
| Jose Leclerc | LAA | mr | 24 | 13 | 8 | .615 | 5 | .385 | 22 | 34 | 10 | .294 | 68 | 68 | 22 | 22.7 | .563 |
| Dominic Leone | | mr | 26 | 2 | 2 | 1.000 | 0 | .000 | 6 | 19 | 7 | .368 | 33 | 33 | 7 | 17.9 | .618 |
| Jon Lester* | | sp | 34 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 34 | 0 | 0 | 91.4 | .651 |
| Artie Lewicki | LAN | sp | 26 | 1 | 1 | 1.000 | 0 | .000 | 0 | 0 | 0 | .000 | 21 | 1 | 1 | 87.3 | .644 |
| Adam Liberatore* | Phi | mr | 31 | 12 | 7 | .583 | 5 | .417 | 18 | 39 | 9 | .231 | 72 | 72 | 27 | 17.7 | .635 |
| Zack Littell | Tam | sp | 22 | 1 | 1 | 1.000 | 0 | .000 | 0 | 4 | 0 | .000 | 12 | 11 | 2 | 29.3 | .597 |
| Walker Lockett | ChA | sp | 24 | 1 | 0 | .000 | 1 | 1.000 | 1 | 4 | 2 | .500 | 11 | 11 | 4 | 25.4 | .656 |
| Boone Logan* | LAN | mr | 33 | 0 | 0 | .000 | 0 | .000 | 3 | 3 | 0 | .000 | 8 | 8 | 0 | 15.4 | .528 |
| Jorge Lopez | SD | sp | 25 | 2 | 1 | .500 | 1 | .500 | 0 | 0 | 0 | .000 | 2 | 2 | 2 | 20.5 | .610 |
| Pablo Lopez | Tex | sp | 22 | 2 | 0 | .000 | 1 | .500 | 1 | 10 | 5 | .500 | 29 | 12 | 2 | 63.2 | .630 |
| Reynaldo Lopez | Bos | sp | 24 | 7 | 2 | .286 | 5 | .714 | 7 | 38 | 13 | .342 | 65 | 64 | 16 | 24.6 | .602 |
| Yoan Lopez | Tex | mr | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 14 | 5 | .357 | 13 | 13 | 6 | 19.4 | .595 |
| Michael Lorenzen | | mr | 26 | 2 | 1 | .500 | 0 | .000 | 7 | 17 | 4 | .235 | 25 | 25 | 7 | 21.1 | .647 |
| Aaron Loup* | Cin | mr | 30 | 3 | 1 | .333 | 1 | .333 | 12 | 18 | 2 | .111 | 39 | 39 | 6 | 18.2 | .603 |
| Richard Lovelady* | | mr | 22 | 4 | 0 | .000 | 4 | 1.000 | 7 | 17 | 10 | .588 | 37 | 37 | 8 | 27.4 | .584 |
| Joey Lucchesi* | Ari | sp | 25 | 4 | 2 | .500 | 2 | .500 | 2 | 20 | 8 | .400 | 45 | 27 | 12 | 49.5 | .629 |
| Seth Lugo | NYN | sp | 28 | 2 | 2 | 1.000 | 0 | .000 | 1 | 13 | 4 | .308 | 19 | 19 | 13 | 19.3 | .604 |
| Jordan Lyles | Phi | mr | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 3 | 0 | 0 | 98.7 | .659 |
| Lance Lynn | | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 91.4 | .622 |
| Tyler Lyons* | Cin | mr | 30 | 9 | 3 | .333 | 3 | .333 | 11 | 25 | 4 | .160 | 49 | 49 | 16 | 17.6 | .636 |
| Ryan Madson | | cl | 37 | 10 | 6 | .600 | 4 | .400 | 16 | 32 | 10 | .313 | 61 | 61 | 17 | 20.9 | .661 |
| Kenta Maeda | Min | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 28 | 0 | 0 | 95.4 | .661 |
| Tyler Mahle | Tam | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 0 | 0 | 88.8 | .655 |
| Kazuhisa Makita | | mr | 33 | 5 | 3 | .600 | 2 | .400 | 6 | 44 | 13 | .295 | 70 | 70 | 24 | 17.4 | .671 |
| Sean Manaea* | Mil | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 31 | 0 | 0 | 91.0 | .633 |
| Michael Mariot | ChN | mr | 29 | 2 | 1 | .500 | 1 | .500 | 0 | 1 | 0 | .000 | 4 | 4 | 3 | 32.3 | .628 |
| German Marquez | Bos | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 36 | 0 | 0 | 93.4 | .630 |
| Francis Martes | Tam | mr | 22 | 1 | 0 | .000 | 1 | 1.000 | 5 | 12 | 5 | .417 | 27 | 27 | 6 | 22.3 | .591 |
| Cody Martin | SD | sp | 28 | 5 | 4 | .800 | 1 | .200 | 3 | 27 | 8 | .296 | 58 | 49 | 12 | 33.1 | .620 |
| Kyle Martin | SD | mr | 27 | 10 | 6 | .600 | 4 | .400 | 3 | 24 | 8 | .333 | 54 | 50 | 20 | 29.2 | .595 |
| Carlos Martinez | Sea | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 18 | 1 | 1 | 90.8 | .639 |
| Phil Maton | ChN | mr | 25 | 6 | 1 | .167 | 5 | .833 | 5 | 22 | 5 | .227 | 34 | 33 | 12 | 20.5 | .614 |
| Steven Matz* | | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 31 | 0 | 0 | 92.1 | .632 |
| Brandon Maurer | Tam | cl | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 1 | 1 | 1 | 6.0 | .500 |
| Trevor May | Sea | mr | 28 | 2 | 2 | 1.000 | 0 | .000 | 1 | 5 | 1 | .200 | 12 | 12 | 9 | 25.8 | .665 |
| Mike Mayers | StL | sp | 26 | 2 | 1 | .500 | 0 | .000 | 3 | 9 | 1 | .111 | 23 | 20 | 8 | 30.0 | .583 |
| Cory Mazzoni | NYN | mr | 28 | 8 | 5 | .625 | 3 | .375 | 1 | 20 | 6 | .300 | 41 | 41 | 19 | 22.3 | .636 |
| Zach McAllister | Sea | mr | 30 | 12 | 9 | .750 | 3 | .250 | 12 | 59 | 17 | .288 | 77 | 77 | 30 | 20.4 | .614 |
| Brandon McCarthy | SF | sp | 34 | 4 | 3 | .750 | 1 | .250 | 3 | 23 | 10 | .435 | 34 | 34 | 11 | 23.5 | .637 |
| Lance McCullers | | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 23 | 0 | 0 | 93.0 | .638 |
| T.J. McFarland* | Bos | mr | 29 | 1 | 1 | 1.000 | 0 | .000 | 3 | 7 | 1 | .143 | 12 | 12 | 2 | 22.7 | .621 |
| Jake McGee* | Tor | mr | 31 | 11 | 4 | .364 | 5 | .455 | 11 | 43 | 8 | .186 | 65 | 65 | 16 | 20.3 | .648 |
| Kyle McGrath* | | mr | 25 | 5 | 3 | .600 | 2 | .400 | 4 | 26 | 6 | .231 | 41 | 41 | 16 | 21.4 | .660 |
| Collin McHugh | Cin | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 34 | 0 | 0 | 92.3 | .632 |
| Ryan Meisinger | Cin | mr | 24 | 3 | 2 | .667 | 1 | .333 | 1 | 2 | 0 | .000 | 13 | 13 | 5 | 25.4 | .564 |
| Adalberto Mejia* | Min | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 4 | 0 | 0 | 94.3 | .610 |
| Mark Melancon | Was | cl | 33 | 18 | 16 | .889 | 2 | .111 | 1 | 20 | 8 | .400 | 39 | 39 | 33 | 16.4 | .674 |
| Keury Mella | Sea | sp | 24 | 9 | 6 | .667 | 1 | .111 | 4 | 38 | 10 | .263 | 60 | 60 | 23 | 20.8 | .609 |
| Yohander Mendez* | KC | sp | 23 | 6 | 5 | .833 | 1 | .167 | 7 | 61 | 17 | .279 | 69 | 69 | 20 | 19.4 | .614 |
| Daniel Mengden | Col | sp | 25 | 4 | 2 | .500 | 2 | .500 | 7 | 15 | 3 | .200 | 33 | 26 | 5 | 33.1 | .614 |
| Keynan Middleton | Bal | mr | 24 | 6 | 4 | .667 | 2 | .333 | 0 | 4 | 2 | .500 | 11 | 11 | 10 | 26.0 | .608 |
| Miles Mikolas | Bos | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 35 | 0 | 0 | 89.6 | .640 |
| Wade Miley* | SD | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 3 | 2 | 2 | 50.3 | .609 |
| Andrew Miller* | Det | mr | 33 | 13 | 12 | .923 | 1 | .077 | 0 | 13 | 3 | .231 | 23 | 23 | 20 | 20.7 | .630 |
| Jared Miller* | Phi | mr | 24 | 11 | 6 | .545 | 5 | .455 | 9 | 27 | 12 | .444 | 58 | 58 | 15 | 20.2 | .595 |
| Justin Miller | KC | mr | 31 | 1 | 1 | 1.000 | 0 | .000 | 0 | 8 | 0 | .000 | 10 | 10 | 5 | 24.4 | .578 |
| Shelby Miller | Atl | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 0 | 0 | 94.0 | .660 |
| Alec Mills | | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 4 | 0 | .000 | 26 | 4 | 0 | 78.2 | .649 |
| Mike Minor* | ChN | mr | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 93.6 | .633 |
| A.J. Minter* | Was | mr | 24 | 17 | 10 | .588 | 4 | .235 | 14 | 25 | 8 | .320 | 59 | 59 | 20 | 19.1 | .582 |
| Ariel Miranda* | StL | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 7 | 1 | 1 | 83.3 | .588 |
| Bryan Mitchell | Pit | mr | 27 | 0 | 0 | .000 | 0 | .000 | 5 | 6 | 2 | .333 | 19 | 14 | 1 | 35.3 | .642 |
| Marcos Molina | NYA | sp | 23 | 1 | 0 | .000 | 1 | 1.000 | 2 | 12 | 3 | .250 | 27 | 17 | 10 | 47.6 | .638 |
| Frankie Montas | ChN | mr | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 28 | 0 | 0 | 97.0 | .608 |
| Jordan Montgomery* | ChA | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 7 | 0 | 0 | 90.9 | .629 |
| Mike Montgomery* | Sea | mr | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 36 | 3 | 0 | 91.0 | .609 |
| Andrew Moore | Mil | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 4 | 0 | 0 | 82.0 | .643 |
| Matt Moore* | Tam | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 9 | 6 | .667 | 35 | 13 | 1 | 71.1 | .601 |
| Reyes Moronta | NYA | mr | 25 | 7 | 4 | .571 | 1 | .143 | 2 | 18 | 1 | .056 | 33 | 33 | 14 | 20.1 | .615 |
| Akeel Morris | StL | mr | 25 | 5 | 3 | .600 | 1 | .200 | 5 | 24 | 6 | .250 | 39 | 39 | 13 | 24.6 | .561 |
| Brandon Morrow | Atl | mr | 33 | 8 | 4 | .500 | 3 | .375 | 5 | 26 | 7 | .269 | 50 | 50 | 20 | 26.9 | .630 |
| Charlie Morton | | sp | 34 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 90.5 | .619 |
| Gabriel Moya* | KC | mr | 23 | 10 | 4 | .400 | 5 | .500 | 15 | 50 | 9 | .180 | 91 | 91 | 19 | 16.5 | .619 |
| Peter Moylan | NYN | mr | 39 | 3 | 3 | 1.000 | 0 | .000 | 3 | 11 | 7 | .636 | 18 | 18 | 10 | 18.6 | .594 |
| Jose Mujica | Atl | sp | 22 | 0 | 0 | .000 | 0 | .000 | 0 | 3 | 1 | .333 | 34 | 1 | 1 | 94.1 | .617 |
| Joe Musgrove | ChA | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 18 | 0 | 0 | 93.9 | .663 |
| Nick Neidert | Hou | sp | 21 | 4 | 2 | .500 | 2 | .500 | 0 | 12 | 6 | .500 | 35 | 15 | 14 | 70.1 | .655 |
| Jimmy Nelson | SD | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 0 | 0 | 93.0 | .581 |
| Hector Neris | Phi | cl | 29 | 3 | 1 | .333 | 2 | .667 | 5 | 17 | 7 | .412 | 24 | 24 | 3 | 22.5 | .628 |
| Pat Neshek | Phi | mr | 37 | 3 | 2 | .667 | 0 | .000 | 3 | 14 | 2 | .143 | 19 | 19 | 6 | 19.7 | .704 |
| Dovydas Neverauskas | Oak | mr | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 2 | 1.000 | 2 | 2 | 1 | 39.0 | .577 |
| Sean Newcomb* | Oak | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 28 | 0 | 0 | 88.8 | .580 |
| Juan Nicasio | NYA | mr | 31 | 4 | 2 | .500 | 2 | .500 | 3 | 13 | 5 | .385 | 30 | 24 | 7 | 37.1 | .640 |
| Aaron Nola | Phi | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 36 | 0 | 0 | 89.8 | .660 |
| Bud Norris | NYN | cl | 33 | 0 | 0 | .000 | 0 | .000 | 1 | 2 | 2 | 1.000 | 35 | 6 | 1 | 74.1 | .620 |
| Ivan Nova | Mil | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 29 | 0 | 0 | 83.8 | .644 |
| Darren O'Day | NYA | mr | 35 | 3 | 3 | 1.000 | 0 | .000 | 6 | 9 | 0 | .000 | 20 | 20 | 10 | 20.4 | .637 |
| Trevor Oaks | Bal | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 13 | 0 | 0 | 92.9 | .628 |
| Scott Oberg | ChA | mr | 28 | 30 | 27 | .900 | 3 | .100 | 2 | 31 | 7 | .226 | 57 | 57 | 49 | 15.9 | .627 |
| Jake Odorizzi | SD | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 24 | 0 | 0 | 93.1 | .616 |
| Seung-hwan Oh | Pit | cl | 35 | 10 | 4 | .400 | 3 | .300 | 6 | 30 | 13 | .433 | 56 | 56 | 17 | 14.9 | .663 |
| Shohei Ohtani | Tex | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 5 | 0 | 0 | 86.4 | .606 |
| Tyler Olson* | Mia | mr | 28 | 1 | 0 | .000 | 1 | 1.000 | 9 | 13 | 3 | .231 | 26 | 26 | 3 | 16.8 | .632 |
| Roberto Osuna | Mia | cl | 23 | 16 | 14 | .875 | 2 | .125 | 2 | 22 | 4 | .182 | 34 | 34 | 26 | 18.2 | .675 |
| Corey Oswalt | | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 19 | 0 | 0 | 92.8 | .633 |
| Dan Otero | | mr | 33 | 11 | 8 | .727 | 3 | .273 | 7 | 32 | 5 | .156 | 72 | 72 | 28 | 18.5 | .685 |
| Adam Ottavino | Pit | mr | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 2 | 1 | 1 | 36.0 | .667 |
| Henry Owens* | Atl | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 36 | 0 | 0 | 98.8 | .529 |
| Emilio Pagan | NYN | mr | 27 | 6 | 3 | .500 | 3 | .500 | 12 | 55 | 11 | .200 | 94 | 94 | 18 | 21.9 | .608 |
| Blake Parker | LAA | mr | 33 | 8 | 7 | .875 | 1 | .125 | 6 | 20 | 7 | .350 | 38 | 38 | 23 | 17.6 | .645 |
| David Paulino | | sp | 24 | 1 | 1 | 1.000 | 0 | .000 | 1 | 5 | 0 | .000 | 12 | 9 | 6 | 42.1 | .602 |
| James Paxton* | Sea | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 30 | 3 | 0 | 86.0 | .640 |
| James Pazos* | | mr | 27 | 11 | 5 | .455 | 6 | .545 | 9 | 35 | 6 | .171 | 56 | 56 | 25 | 24.7 | .601 |
| Brad Peacock | | sp | 30 | 1 | 0 | .000 | 0 | .000 | 0 | 10 | 4 | .400 | 31 | 14 | 8 | 55.1 | .601 |
| Freddy Peralta | Oak | sp | 22 | 1 | 1 | 1.000 | 0 | .000 | 4 | 25 | 6 | .240 | 27 | 26 | 10 | 26.4 | .589 |
| Luis Perdomo | LAA | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 19 | 0 | 0 | 85.7 | .649 |
| Cionel Perez* | NYN | sp | 22 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 21 | 0 | 0 | 95.2 | .611 |
| Martin Perez* | LAN | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 18 | 0 | 0 | 97.0 | .618 |
| Oliver Perez* | Min | mr | 36 | 3 | 3 | 1.000 | 0 | .000 | 6 | 13 | 2 | .154 | 23 | 23 | 6 | 18.5 | .602 |
| Dillon Peters* | Cle | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 14 | 0 | 0 | 85.1 | .593 |
| Yusmeiro Petit | Was | mr | 33 | 2 | 1 | .500 | 0 | .000 | 9 | 20 | 2 | .100 | 45 | 40 | 14 | 26.0 | .646 |
| Jake Petricka | ChN | mr | 30 | 4 | 2 | .500 | 2 | .500 | 8 | 53 | 20 | .377 | 61 | 61 | 14 | 21.6 | .616 |
| Nick Pivetta | | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 27 | 0 | 0 | 90.1 | .630 |
| Adam Plutko | Tex | sp | 26 | 1 | 1 | 1.000 | 0 | .000 | 1 | 14 | 7 | .500 | 23 | 12 | 4 | 57.5 | .635 |
| Drew Pomeranz* | SD | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 16 | 0 | 0 | 86.6 | .627 |
| Daniel Poncedeleon | StL | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 6 | 4 | .667 | 10 | 10 | 7 | 22.2 | .545 |
| Rick Porcello | Bal | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 32 | 0 | 0 | 98.2 | .669 |
| Bobby Poyner* | LAN | mr | 25 | 15 | 11 | .733 | 4 | .267 | 12 | 41 | 17 | .415 | 78 | 78 | 34 | 20.9 | .616 |
| Ryan Pressly | Min | mr | 29 | 6 | 2 | .333 | 4 | .667 | 13 | 43 | 8 | .186 | 73 | 73 | 25 | 20.3 | .626 |
| David Price* | Tor | sp | 32 | 1 | 1 | 1.000 | 0 | .000 | 0 | 1 | 1 | 1.000 | 41 | 1 | 1 | 85.6 | .657 |
| Jose Quintana* | | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 36 | 0 | 0 | 86.2 | .646 |
| Tanner Rainey | Atl | mr | 25 | 6 | 3 | .500 | 3 | .500 | 7 | 34 | 9 | .265 | 56 | 56 | 26 | 27.1 | .564 |
| Erasmo Ramirez | ChA | mr | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 9 | 4 | .444 | 16 | 10 | 1 | 47.8 | .655 |
| A.J. Ramos | Min | cl | 31 | 2 | 1 | .500 | 1 | .500 | 2 | 5 | 0 | .000 | 16 | 16 | 6 | 21.8 | .618 |
| Edubray Ramos | Tor | mr | 25 | 6 | 3 | .500 | 2 | .333 | 10 | 34 | 7 | .206 | 57 | 57 | 18 | 23.5 | .623 |
| Robbie Ray* | Oak | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 23 | 0 | 0 | 90.7 | .637 |
| Addison Reed | Cin | cl | 29 | 5 | 3 | .600 | 0 | .000 | 4 | 32 | 8 | .250 | 47 | 47 | 9 | 18.5 | .676 |
| Cody Reed* | Col | sp | 25 | 12 | 3 | .250 | 6 | .500 | 11 | 40 | 14 | .350 | 75 | 68 | 18 | 25.1 | .561 |
| Clayton Richard* | LAA | sp | 34 | 0 | 0 | .000 | 0 | .000 | 1 | 0 | 0 | .000 | 21 | 1 | 0 | 88.1 | .639 |
| Garrett Richards | Bal | sp | 30 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 15 | 0 | 0 | 97.7 | .612 |
| Trevor Richards | | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 3 | 3 | 1.000 | 30 | 2 | 0 | 91.4 | .622 |
| Felipe Rivero* | | cl | 26 | 10 | 6 | .600 | 3 | .300 | 19 | 34 | 6 | .176 | 60 | 60 | 17 | 19.0 | .626 |
| Tanner Roark | Min | sp | 31 | 0 | 0 | .000 | 0 | .000 | 1 | 0 | 0 | .000 | 33 | 4 | 2 | 85.0 | .639 |
| David Robertson | Mil | cl | 33 | 40 | 27 | .675 | 13 | .325 | 1 | 35 | 10 | .286 | 68 | 68 | 51 | 18.4 | .630 |
| Carlos Rodon* | Col | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 20 | 0 | 0 | 93.2 | .601 |
| Dereck Rodriguez | NYA | sp | 26 | 2 | 0 | .000 | 1 | .500 | 0 | 4 | 2 | .500 | 6 | 6 | 1 | 18.7 | .634 |
| Eduardo Rodriguez* | Col | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 3 | 2 | .667 | 19 | 1 | 0 | 90.2 | .602 |
| Richard Rodriguez | Mia | mr | 28 | 2 | 2 | 1.000 | 0 | .000 | 0 | 4 | 4 | 1.000 | 10 | 10 | 6 | 25.8 | .593 |
| Chaz Roe | | mr | 31 | 3 | 3 | 1.000 | 0 | .000 | 3 | 16 | 4 | .250 | 31 | 31 | 9 | 23.3 | .623 |
| Josh Rogers* | | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 20 | 0 | 0 | 90.2 | .645 |
| Taylor Rogers* | Cle | mr | 27 | 11 | 7 | .636 | 4 | .364 | 6 | 42 | 10 | .238 | 60 | 60 | 31 | 22.8 | .622 |
| Sal Romano | Col | sp | 24 | 6 | 4 | .667 | 2 | .333 | 2 | 35 | 11 | .314 | 41 | 27 | 15 | 47.8 | .614 |
| Fernando Romero | NYN | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 3 | 0 | 0 | 89.7 | .617 |
| Sergio Romo | Bal | mr | 35 | 7 | 6 | .857 | 1 | .143 | 9 | 31 | 11 | .355 | 63 | 63 | 24 | 18.5 | .637 |
| Hector Rondon | | mr | 30 | 11 | 4 | .364 | 5 | .455 | 15 | 37 | 11 | .297 | 67 | 67 | 15 | 16.2 | .652 |
| Trevor Rosenthal | SD | cl | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 2 | 0 | .000 | 2 | 2 | 0 | 20.0 | .600 |
| Joe Ross | Mia | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 5 | 0 | 0 | 87.6 | .646 |
| Robbie Ross Jr.* | SD | mr | 29 | 3 | 0 | .000 | 2 | .667 | 7 | 32 | 9 | .281 | 45 | 45 | 11 | 22.4 | .608 |
| Ben Rowen | ChN | mr | 29 | 3 | 3 | 1.000 | 0 | .000 | 1 | 12 | 3 | .250 | 22 | 22 | 9 | 21.2 | .670 |
| Nick Rumbelow | | mr | 26 | 9 | 4 | .444 | 4 | .444 | 12 | 33 | 9 | .273 | 68 | 68 | 20 | 26.4 | .623 |
| Chris Rusin* | KC | mr | 31 | 9 | 5 | .556 | 3 | .333 | 8 | 46 | 12 | .261 | 65 | 65 | 27 | 19.0 | .666 |
| Hyun-jin Ryu* | LAN | sp | 31 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 13 | 0 | 0 | 93.5 | .653 |
| Marc Rzepczynski* | Pit | mr | 32 | 2 | 0 | .000 | 0 | .000 | 13 | 29 | 9 | .310 | 36 | 36 | 5 | 13.9 | .576 |
| CC Sabathia* | Phi | sp | 37 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 6 | 0 | 0 | 97.0 | .608 |
| Chris Sale* | Det | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 27 | 0 | 0 | 100.6 | .672 |
| Jeff Samardzija | Det | sp | 33 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 10 | 0 | 0 | 89.7 | .656 |
| Aaron Sanchez | | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 22 | 0 | 0 | 91.6 | .596 |
| Dennis Santana | Ari | sp | 22 | 1 | 0 | .000 | 1 | 1.000 | 0 | 16 | 5 | .313 | 28 | 25 | 10 | 26.8 | .589 |
| Edgar Santana | ChA | mr | 26 | 1 | 1 | 1.000 | 0 | .000 | 4 | 15 | 3 | .200 | 27 | 27 | 10 | 22.4 | .617 |
| Ervin Santana | Min | sp | 35 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 3 | 0 | 0 | 96.3 | .637 |
| Max Scherzer | Phi | sp | 33 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 35 | 0 | 0 | 95.4 | .654 |
| Tanner Scott* | NYN | sp | 23 | 1 | 1 | 1.000 | 0 | .000 | 0 | 3 | 1 | .333 | 6 | 6 | 2 | 13.2 | .557 |
| Antonio Senzatela | NYA | sp | 23 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 31 | 0 | 0 | 91.2 | .644 |
| Luis Severino | Tex | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 0 | 0 | 99.8 | .656 |
| Paul Sewald | | mr | 28 | 8 | 5 | .625 | 1 | .125 | 3 | 30 | 11 | .367 | 50 | 50 | 23 | 19.5 | .664 |
| Bryan Shaw | Was | mr | 30 | 9 | 4 | .444 | 4 | .444 | 16 | 20 | 4 | .200 | 60 | 60 | 15 | 18.2 | .646 |
| Justus Sheffield* | Ari | sp | 22 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 1 | 1 | 87.2 | .592 |
| Chandler Shepherd | Atl | mr | 25 | 10 | 4 | .400 | 6 | .600 | 1 | 66 | 20 | .303 | 60 | 60 | 46 | 29.0 | .618 |
| Jimmie Sherfy | Col | mr | 26 | 9 | 2 | .222 | 6 | .667 | 14 | 54 | 18 | .333 | 80 | 80 | 11 | 19.6 | .609 |
| Chasen Shreve* | Tam | mr | 27 | 5 | 3 | .600 | 2 | .400 | 17 | 35 | 14 | .400 | 66 | 66 | 20 | 19.1 | .603 |
| Lucas Sims | Hou | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 19 | 2 | 1 | 106.2 | .600 |
| Tyler Skaggs* | StL | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 22 | 0 | 0 | 89.6 | .633 |
| Carson Smith | Sea | mr | 28 | 1 | 1 | 1.000 | 0 | .000 | 2 | 7 | 2 | .286 | 18 | 18 | 8 | 21.9 | .622 |
| Joe Smith | Mil | mr | 34 | 8 | 3 | .375 | 5 | .625 | 11 | 26 | 10 | .385 | 61 | 61 | 11 | 19.0 | .648 |
| Will Smith* | | mr | 28 | 1 | 1 | 1.000 | 0 | .000 | 11 | 19 | 2 | .105 | 37 | 37 | 7 | 19.2 | .615 |
| Josh Smoker* | LAA | mr | 29 | 3 | 2 | .667 | 1 | .333 | 4 | 18 | 3 | .167 | 25 | 25 | 7 | 16.4 | .646 |
| Blake Snell* | Tor | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 35 | 0 | 0 | 83.9 | .596 |
| D.J. Snelten* | | mr | 26 | 4 | 2 | .500 | 2 | .500 | 3 | 20 | 8 | .400 | 33 | 33 | 14 | 22.7 | .632 |
| Sammy Solis* | Bal | mr | 29 | 11 | 8 | .727 | 3 | .273 | 7 | 29 | 6 | .207 | 58 | 58 | 21 | 21.9 | .589 |
| Joakim Soria | Pit | mr | 34 | 10 | 4 | .400 | 4 | .400 | 19 | 36 | 9 | .250 | 59 | 59 | 14 | 16.6 | .634 |
| Mike Soroka | Ari | sp | 20 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 10 | 0 | 0 | 92.1 | .604 |
| Craig Stammen | Mil | mr | 34 | 5 | 4 | .800 | 1 | .200 | 1 | 22 | 6 | .273 | 47 | 47 | 26 | 22.4 | .623 |
| Ryne Stanek | Oak | mr | 26 | 1 | 0 | .000 | 1 | 1.000 | 3 | 19 | 2 | .105 | 22 | 22 | 8 | 22.9 | .567 |
| Josh Staumont | | sp | 24 | 0 | 0 | .000 | 0 | .000 | 1 | 1 | 0 | .000 | 18 | 5 | 1 | 79.0 | .543 |
| Drew Steckenrider | NYA | mr | 27 | 6 | 2 | .333 | 3 | .500 | 12 | 37 | 14 | .378 | 60 | 60 | 13 | 24.1 | .607 |
| Jackson Stephens | Tam | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 11 | 3 | .273 | 13 | 10 | 2 | 42.6 | .628 |
| Jordan Stephens | ChA | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 0 | 0 | 70.0 | .543 |
| Dan Straily | Mil | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 15 | 0 | 0 | 88.9 | .618 |
| Stephen Strasburg | NYA | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 24 | 0 | 0 | 93.7 | .674 |
| Chris Stratton | Tor | sp | 27 | 4 | 2 | .500 | 2 | .500 | 2 | 23 | 5 | .217 | 47 | 40 | 12 | 33.9 | .611 |
| Hunter Strickland | Ari | mr | 29 | 2 | 1 | .500 | 1 | .500 | 12 | 26 | 7 | .269 | 53 | 52 | 14 | 18.6 | .613 |
| Ross Stripling | Mia | mr | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 23 | 0 | 0 | 88.7 | .650 |
| Marcus Stroman | SD | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 30 | 0 | 0 | 90.7 | .637 |
| Pedro Strop | Tor | mr | 33 | 3 | 1 | .333 | 1 | .333 | 16 | 15 | 5 | .333 | 58 | 58 | 14 | 21.4 | .629 |
| Andrew Suarez* | SF | sp | 25 | 0 | 0 | .000 | 0 | .000 | 2 | 2 | 1 | .500 | 6 | 6 | 2 | 24.2 | .586 |
| Ranger Suarez* | Cle | sp | 22 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 12 | 1 | 1 | 76.9 | .600 |
| Wander Suero | | mr | 26 | 6 | 4 | .667 | 2 | .333 | 6 | 26 | 7 | .269 | 49 | 49 | 22 | 23.9 | .641 |
| Brent Suter* | LAN | sp | 28 | 0 | 0 | .000 | 0 | .000 | 2 | 6 | 0 | .000 | 24 | 14 | 3 | 42.8 | .628 |
| Anthony Swarzak | | mr | 32 | 1 | 0 | .000 | 1 | 1.000 | 9 | 10 | 4 | .400 | 33 | 33 | 11 | 18.3 | .662 |
| Noah Syndergaard | Det | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 25 | 0 | 0 | 94.4 | .675 |
| Jameson Taillon | Col | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 33 | 0 | 0 | 90.3 | .637 |
| Masahiro Tanaka | LAN | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 27 | 0 | 0 | 93.5 | .665 |
| Dillon Tate | Ari | sp | 24 | 2 | 1 | .500 | 1 | .500 | 0 | 10 | 3 | .300 | 19 | 14 | 12 | 40.5 | .567 |
| Julio Teheran | SD | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 36 | 0 | 0 | 84.8 | .638 |
| Ryan Tepera | Mil | mr | 30 | 5 | 3 | .600 | 2 | .400 | 2 | 16 | 7 | .438 | 29 | 29 | 12 | 18.5 | .623 |
| Jake Thompson | NYN | sp | 24 | 6 | 5 | .833 | 1 | .167 | 2 | 21 | 6 | .286 | 36 | 36 | 17 | 19.2 | .606 |
| Tyler Thornburg | Bal | mr | 29 | 4 | 3 | .750 | 0 | .000 | 5 | 14 | 3 | .214 | 30 | 30 | 12 | 21.8 | .613 |
| Trent Thornton | Pit | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 4 | 4 | 2 | 22.0 | .727 |
| Lewis Thorpe* | KC | sp | 22 | 0 | 0 | .000 | 0 | .000 | 0 | 1 | 0 | .000 | 23 | 2 | 2 | 80.9 | .588 |
| Josh Tomlin | Hou | sp | 33 | 2 | 1 | .500 | 1 | .500 | 0 | 2 | 0 | .000 | 21 | 2 | 2 | 100.7 | .681 |
| Touki Toussaint | Tex | sp | 22 | 5 | 0 | .000 | 4 | .800 | 2 | 43 | 10 | .233 | 66 | 56 | 9 | 31.9 | .572 |
| Blake Treinen | | cl | 30 | 30 | 27 | .900 | 3 | .100 | 1 | 38 | 9 | .237 | 62 | 61 | 54 | 19.9 | .621 |
| Andrew Triggs | Was | sp | 29 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 4 | 0 | 0 | 92.5 | .622 |
| Lou Trivino | | mr | 26 | 7 | 3 | .429 | 3 | .429 | 5 | 36 | 15 | .417 | 50 | 50 | 14 | 30.2 | .577 |
| Nick Tropeano | Min | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 16 | 0 | 0 | 96.7 | .636 |
| Sam Tuivailala | StL | mr | 25 | 8 | 5 | .625 | 3 | .375 | 5 | 20 | 5 | .250 | 33 | 33 | 15 | 20.2 | .646 |
| Spencer Turnbull | SD | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 1 | 1 | 1 | 27.0 | .704 |
| Duane Underwood | Tex | sp | 23 | 4 | 1 | .250 | 2 | .500 | 1 | 28 | 16 | .571 | 31 | 31 | 7 | 18.4 | .583 |
| Jose Urena | Tam | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 27 | 0 | 0 | 87.9 | .623 |
| Julio Urias* | Oak | sp | 21 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 5 | 0 | 0 | 80.2 | .599 |
| Framber Valdez* | Tex | sp | 24 | 1 | 1 | 1.000 | 0 | .000 | 0 | 4 | 2 | .500 | 14 | 5 | 5 | 64.7 | .583 |
| Jason Vargas* | Mil | sp | 35 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 24 | 0 | 0 | 87.4 | .638 |
| Vince Velasquez | StL | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 28 | 0 | 0 | 95.9 | .615 |
| Hector Velazquez | SD | sp | 29 | 1 | 1 | 1.000 | 0 | .000 | 0 | 0 | 0 | .000 | 2 | 2 | 2 | 23.0 | .652 |
| Justin Verlander | Pit | sp | 35 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 35 | 0 | 0 | 98.4 | .640 |
| Nick Vincent | StL | mr | 31 | 19 | 15 | .789 | 4 | .211 | 2 | 17 | 3 | .176 | 40 | 40 | 27 | 17.0 | .657 |
| Arodys Vizcaino | Cin | cl | 27 | 3 | 1 | .333 | 2 | .667 | 3 | 12 | 4 | .333 | 26 | 26 | 11 | 21.4 | .603 |
| Michael Wacha | Bos | sp | 26 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 16 | 0 | 0 | 99.1 | .646 |
| Bobby Wahl | Sea | mr | 26 | 1 | 0 | .000 | 1 | 1.000 | 0 | 0 | 0 | .000 | 4 | 4 | 3 | 37.8 | .483 |
| Adam Wainwright | Min | sp | 36 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 8 | 0 | 0 | 92.4 | .655 |
| Adam Warren | Sea | mr | 30 | 6 | 3 | .500 | 2 | .333 | 12 | 38 | 10 | .263 | 73 | 72 | 21 | 19.8 | .630 |
| Tony Watson* | Tor | mr | 33 | 9 | 5 | .556 | 4 | .444 | 9 | 41 | 15 | .366 | 68 | 68 | 30 | 17.2 | .629 |
| Luke Weaver | Cle | sp | 24 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 21 | 0 | 0 | 93.5 | .655 |
| Patrick Weigel | Tex | sp | 23 | 1 | 1 | 1.000 | 0 | .000 | 0 | 2 | 0 | .000 | 2 | 2 | 2 | 4.0 | .500 |
| Zack Wheeler | Mia | sp | 28 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 19 | 0 | 0 | 95.9 | .606 |
| Forrest Whitley | Atl | sp | 20 | 1 | 1 | 1.000 | 0 | .000 | 0 | 3 | 2 | .667 | 31 | 5 | 3 | 89.1 | .574 |
| Brad Wieck* | StL | mr | 26 | 4 | 1 | .250 | 2 | .500 | 19 | 50 | 17 | .340 | 71 | 71 | 16 | 20.0 | .544 |
| Taylor Williams | | sp | 26 | 5 | 3 | .600 | 1 | .200 | 11 | 29 | 5 | .172 | 47 | 47 | 15 | 14.7 | .614 |
| Trevor Williams | | sp | 26 | 1 | 1 | 1.000 | 0 | .000 | 0 | 2 | 1 | .500 | 25 | 11 | 3 | 61.1 | .642 |
| Justin Wilson* | Det | mr | 30 | 6 | 5 | .833 | 1 | .167 | 8 | 19 | 4 | .211 | 37 | 37 | 17 | 23.2 | .607 |
| Dan Winkler | LAN | mr | 28 | 4 | 2 | .500 | 2 | .500 | 5 | 20 | 6 | .300 | 47 | 47 | 14 | 20.2 | .600 |
| Matt Wisler | | sp | 25 | 0 | 0 | .000 | 0 | .000 | 1 | 4 | 3 | .750 | 18 | 7 | 1 | 64.2 | .653 |
| Nick Wittgren | StL | mr | 27 | 9 | 5 | .556 | 1 | .111 | 9 | 39 | 16 | .410 | 76 | 76 | 22 | 16.7 | .664 |
| Alex Wood* | Was | sp | 27 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 39 | 0 | 0 | 82.5 | .635 |
| Brandon Woodruff | ChA | sp | 25 | 0 | 0 | .000 | 0 | .000 | 0 | 9 | 5 | .556 | 23 | 9 | 3 | 63.5 | .626 |
| Ryan Yarbrough* | SD | sp | 26 | 2 | 1 | .500 | 1 | .500 | 3 | 3 | 1 | .333 | 19 | 14 | 5 | 39.9 | .654 |
| Kirby Yates | Bos | mr | 31 | 7 | 2 | .286 | 4 | .571 | 9 | 32 | 8 | .250 | 57 | 57 | 19 | 20.1 | .620 |
| Rob Zastryzny* | LAN | sp | 26 | 0 | 0 | .000 | 0 | .000 | 2 | 15 | 5 | .333 | 22 | 17 | 8 | 30.3 | .606 |
| Brad Ziegler | Pit | cl | 38 | 11 | 9 | .818 | 0 | .000 | 10 | 22 | 4 | .182 | 51 | 51 | 16 | 17.2 | .620 |
| Jordan Zimmermann | Pit | sp | 32 | 0 | 0 | .000 | 0 | .000 | 0 | 0 | 0 | .000 | 8 | 0 | 0 | 91.3 | .674 |
