| SP | Arrieta, J.Arrieta, Jake >> | 29 | 2015 | R | 93 | 24 | 24 | 10 | 8 | 3.08 | .261 | 1.05 | 6.5 | 3.0 | 8.1 | 146.1 | 106 | 53 | 50 | 7 | 48 | 131 | 1 | 0 | 0 | 0 | 15 | 1 | 1 | 2.84 |
| SP | Leonard, D.Leonard, Dutch $ >> | 22 | 1914 | L | 91 | 25 | 25 | 11 | 7 | 2.56 | .253 | 1.00 | 6.2 | 2.8 | 4.9 | 172.0 | 119 | 49 | 49 | 15 | 53 | 93 | 1 | 0 | 0 | 0 | 20 | 3 | 2 | 4.03 |
| SP | Walsh, E.Walsh, Ed † $ >> | 29 | 1910 | R | 93 | 24 | 24 | 16 | 8 | 2.04 | .240 | 0.93 | 6.0 | 2.3 | 4.6 | 189.1 | 127 | 47 | 43 | 10 | 49 | 96 | 9 | 0 | 0 | 5 | 20 | 3 | 2 | 3.50 |
| SP | Johnson, R.Johnson, Randy # >> | 41 | 2004 | L | 84 | 24 | 24 | 14 | 5 | 2.94 | .263 | 1.05 | 7.3 | 2.1 | 7.8 | 174.2 | 142 | 61 | 57 | 16 | 41 | 150 | 2 | 0 | 0 | 0 | 17 | 4 | 3 | 3.25 |
| RP | Treinen, B.Treinen, Blake >> | 30 | 2018 | R | 79 | 26 | 0 | 3 | 1 | 1.69 | .266 | 1.09 | 6.9 | 3.1 | 9.3 | 26.2 | 20 | 6 | 5 | 1 | 9 | 27 | 0 | 5 | 2 | 0 | 0 | 0 | 2 | 2.46 |
| RP | Britton, Z.Britton, Zach >> | 28 | 2016 | L | 78 | 15 | 0 | 4 | 2 | 3.63 | .246 | 0.92 | 6.4 | 2.1 | 6.9 | 17.1 | 12 | 7 | 7 | 0 | 4 | 13 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 2.35 |
| RP | Radatz, D.Radatz, Dick >> | 27 | 1964 | R | 37 | 7 | 0 | 0 | 0 | 4.15 | .391 | 1.85 | 13.8 | 2.8 | 4.8 | 13.0 | 20 | 6 | 6 | 3 | 4 | 7 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 6.08 |