| SP | Johnson, W.Johnson, Walter >> | 26 | 1913 | R | 95 | 21 | 21 | 7 | 7 | 4.07 | .302 | 1.28 | 9.1 | 2.5 | 4.5 | 135.0 | 136 | 70 | 61 | 10 | 37 | 68 | 3 | 0 | 0 | 1 | 13 | 2 | 4 | 3.82 |
| SP | Kluber, C.Kluber, Corey >> | 31 | 2017 | R | 90 | 20 | 20 | 6 | 9 | 6.11 | .348 | 1.57 | 10.3 | 3.9 | 8.4 | 123.2 | 141 | 84 | 84 | 22 | 53 | 115 | 2 | 0 | 0 | 0 | 6 | 4 | 2 | 4.85 |
| CL | Doolittle, S.Doolittle, Sean >> | 31 | 2018 | L | 99 | 46 | 0 | 2 | 7 | 6.65 | .352 | 1.63 | 11.1 | 3.6 | 9.0 | 47.1 | 58 | 36 | 35 | 11 | 19 | 47 | 0 | 21 | 6 | 0 | 0 | 0 | 0 | 5.26 |
| RP | Boxberger, B.Boxberger, Brad >> | 26 | 2014 | R | 83 | 49 | 0 | 1 | 1 | 5.44 | .318 | 1.38 | 7.7 | 4.7 | 8.8 | 48.0 | 41 | 32 | 29 | 3 | 25 | 47 | 0 | 2 | 1 | 0 | 0 | 1 | 1 | 3.48 |
| RP | Pagan, E.Pagan, Emilio >> | 28 | 2019 | R | 76 | 41 | 0 | 2 | 2 | 3.92 | .280 | 1.17 | 8.8 | 1.9 | 7.3 | 43.2 | 42 | 21 | 19 | 7 | 9 | 35 | 0 | 0 | 3 | 0 | 0 | 0 | 5 | 4.12 |
| SP | Hendrix, C.Hendrix, Claude >> | 25 | 1914 | R | 69 | 16 | 0 | 1 | 2 | 5.74 | .355 | 1.61 | 10.0 | 4.8 | 4.5 | 26.2 | 29 | 17 | 17 | 4 | 14 | 13 | 0 | 2 | 1 | 0 | 0 | 1 | 0 | 5.73 |