| SP | Johnson, W.Johnson, Walter $ >> | 26 | 1913 | R | 95 | 25 | 25 | 10 | 10 | 3.74 | .302 | 1.27 | 9.3 | 2.2 | 5.5 | 178.0 | 183 | 76 | 74 | 16 | 43 | 108 | 7 | 0 | 0 | 2 | 14 | 5 | 1 | 3.76 |
| SP | Kluber, C.Kluber, Corey >> | 31 | 2017 | R | 89 | 24 | 24 | 5 | 12 | 6.40 | .359 | 1.66 | 12.2 | 2.8 | 8.9 | 133.2 | 181 | 100 | 95 | 29 | 41 | 132 | 1 | 0 | 0 | 0 | 8 | 3 | 2 | 4.84 |
| SP | Hernandez, F.Hernandez, Felix >> | 28 | 2014 | R | 79 | 24 | 24 | 4 | 12 | 6.80 | .356 | 1.65 | 11.5 | 3.4 | 7.0 | 123.0 | 157 | 102 | 93 | 24 | 46 | 95 | 1 | 0 | 0 | 0 | 8 | 1 | 8 | 5.14 |
| SP | Pfiester, J.Pfiester, Jack >> | 28 | 1906 | L | 73 | 23 | 23 | 10 | 9 | 4.43 | .328 | 1.45 | 9.7 | 3.4 | 4.1 | 154.1 | 166 | 84 | 76 | 18 | 58 | 71 | 3 | 0 | 0 | 0 | 13 | 2 | 2 | 4.77 |
| RP | Doolittle, S.Doolittle, Sean >> | 31 | 2018 | L | 98 | 64 | 0 | 1 | 0 | 3.64 | .276 | 1.13 | 7.6 | 2.6 | 8.5 | 59.1 | 50 | 26 | 24 | 11 | 17 | 56 | 0 | 2 | 1 | 0 | 0 | 1 | 2 | 4.44 |
| RP | Boxberger, B.Boxberger, Brad >> | 26 | 2014 | R | 83 | 47 | 0 | 3 | 4 | 8.06 | .385 | 1.88 | 9.6 | 7.3 | 10.1 | 48.0 | 51 | 43 | 43 | 10 | 39 | 54 | 0 | 5 | 1 | 0 | 0 | 0 | 2 | 5.90 |
| RP | Gregerson, L.Gregerson, Luke >> | 26 | 2010 | R | 73 | 35 | 0 | 2 | 4 | 3.38 | .313 | 1.37 | 9.0 | 3.4 | 8.2 | 45.1 | 45 | 17 | 17 | 8 | 17 | 41 | 0 | 2 | 2 | 0 | 0 | 0 | 0 | 4.62 |
| SP | Waddell, R.Waddell, Rube >> | 29 | 1905 | L | 67 | 8 | 0 | 2 | 1 | 5.56 | .358 | 1.68 | 12.3 | 3.3 | 5.7 | 11.1 | 15 | 7 | 7 | 0 | 4 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.82 |