| SP | Johnson, W.Johnson, Walter >> | 26 | 1913 | R | 95 | 22 | 22 | 12 | 9 | 2.99 | .270 | 1.10 | 7.8 | 2.2 | 5.4 | 174.1 | 150 | 61 | 58 | 8 | 42 | 105 | 6 | 0 | 0 | 1 | 17 | 1 | 1 | 3.13 |
| SP | Leonard, D.Leonard, Dutch >> | 22 | 1914 | L | 91 | 21 | 21 | 10 | 8 | 3.81 | .287 | 1.18 | 6.9 | 3.8 | 5.2 | 132.1 | 101 | 56 | 56 | 10 | 55 | 76 | 3 | 0 | 0 | 1 | 12 | 4 | 4 | 4.17 |
| SP | Fernandez, S.Fernandez, Sid † >> | 23 | 1985 | L | 49 | 20 | 20 | 13 | 2 | 2.48 | .269 | 1.07 | 5.0 | 4.7 | 9.1 | 141.2 | 78 | 41 | 39 | 9 | 74 | 142 | 3 | 0 | 0 | 3 | 16 | 4 | 0 | 3.48 |
| SP | Johnson, R.Johnson, Randy >> | 41 | 2004 | L | 83 | 21 | 20 | 7 | 5 | 4.15 | .293 | 1.24 | 8.9 | 2.3 | 8.0 | 123.2 | 122 | 60 | 57 | 13 | 31 | 109 | 6 | 0 | 0 | 1 | 11 | 1 | 2 | 3.38 |
| SP | Lundgren, C.Lundgren, Carl † >> | 27 | 1907 | R | 43 | 20 | 20 | 12 | 2 | 2.49 | .259 | 1.02 | 5.8 | 3.4 | 3.7 | 144.1 | 92 | 41 | 40 | 9 | 55 | 59 | 5 | 0 | 0 | 1 | 16 | 4 | 2 | 4.22 |
| RP | Doolittle, S.Doolittle, Sean >> | 31 | 2018 | L | 99 | 52 | 0 | 6 | 1 | 4.02 | .226 | 0.88 | 6.1 | 1.9 | 11.4 | 53.2 | 36 | 24 | 24 | 4 | 11 | 67 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 2.08 |
| RP | Saito, T.Saito, Takashi >> | 37 | 2007 | R | 92 | 52 | 0 | 1 | 1 | 2.76 | .230 | 0.90 | 5.0 | 3.2 | 6.4 | 45.2 | 25 | 16 | 14 | 3 | 16 | 32 | 0 | 2 | 2 | 0 | 0 | 0 | 0 | 3.51 |
| RP | Capps, C.Capps, Carter >> | 24 | 2015 | R | 86 | 40 | 0 | 1 | 1 | 2.79 | .310 | 1.28 | 7.1 | 4.3 | 10.6 | 29.0 | 23 | 9 | 9 | 3 | 14 | 34 | 0 | 5 | 0 | 0 | 0 | 2 | 0 | 3.66 |
| RP | Treinen, B.Treinen, Blake >> | 30 | 2018 | R | 80 | 19 | 0 | 3 | 1 | 1.37 | .253 | 0.86 | 5.7 | 2.4 | 11.4 | 19.2 | 12 | 3 | 3 | 1 | 5 | 24 | 0 | 3 | 0 | 0 | 0 | 3 | 1 | 2.42 |