| SP | Kluber, C.Kluber, Corey >> | 31 | 2017 | R | 90 | 36 | 36 | 7 | 20 | 5.43 | .347 | 1.58 | 10.4 | 3.8 | 8.5 | 225.1 | 261 | 148 | 136 | 35 | 95 | 213 | 3 | 0 | 0 | 0 | 14 | 4 | 7 | 4.45 |
| SP | Greinke, Z.Greinke, Zack >> | 32 | 2015 | R | 94 | 34 | 34 | 14 | 9 | 3.86 | .294 | 1.24 | 8.0 | 3.2 | 6.0 | 244.2 | 217 | 113 | 105 | 33 | 87 | 162 | 2 | 0 | 0 | 1 | 18 | 1 | 9 | 4.51 |
| SP | Mathewson, C.Mathewson, Christy † >> | 28 | 1908 | R | 83 | 34 | 34 | 21 | 7 | 3.39 | .282 | 1.16 | 8.3 | 2.2 | 4.6 | 252.1 | 231 | 99 | 95 | 25 | 62 | 129 | 5 | 0 | 0 | 0 | 24 | 4 | 2 | 4.05 |
| CL | Jansen, K.Jansen, Kenley >> | 28 | 2016 | R | 97 | 69 | 0 | 3 | 8 | 3.59 | .290 | 1.18 | 7.8 | 3.0 | 8.9 | 72.2 | 62 | 29 | 29 | 6 | 24 | 71 | 0 | 37 | 5 | 0 | 0 | 3 | 1 | 3.24 |
| RP | Gossage, R.Gossage, Rich >> | 30 | 1981 | R | 90 | 89 | 0 | 8 | 3 | 2.83 | .264 | 1.05 | 5.3 | 4.2 | 8.3 | 111.1 | 65 | 38 | 35 | 11 | 52 | 102 | 0 | 2 | 2 | 0 | 0 | 3 | 3 | 3.94 |
| RP | Pagan, E.Pagan, Emilio >> | 28 | 2019 | R | 76 | 53 | 0 | 2 | 3 | 5.40 | .315 | 1.38 | 7.5 | 4.9 | 9.3 | 55.0 | 46 | 33 | 33 | 8 | 30 | 57 | 0 | 3 | 2 | 0 | 0 | 0 | 3 | 4.45 |
| RP | Gregerson, L.Gregerson, Luke >> | 26 | 2010 | R | 73 | 36 | 0 | 1 | 2 | 4.14 | .332 | 1.49 | 9.6 | 4.0 | 8.6 | 45.2 | 48 | 21 | 21 | 5 | 20 | 43 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.87 |
| SP | Chesbro, J.Chesbro, Jack >> | 30 | 1904 | R | 65 | 18 | 0 | 4 | 2 | 5.70 | .313 | 1.37 | 9.6 | 2.7 | 3.9 | 30.0 | 32 | 21 | 19 | 5 | 9 | 13 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 5.20 |