| SP | Leonard, D.Leonard, Dutch † >> | 22 | 1914 | L | 91 | 24 | 24 | 11 | 5 | 2.55 | .247 | 0.98 | 6.2 | 2.7 | 5.0 | 165.2 | 113 | 52 | 47 | 10 | 49 | 92 | 1 | 0 | 0 | 1 | 18 | 1 | 0 | 3.58 |
| SP | Snell, B.Snell, Blake # >> | 25 | 2018 | L | 80 | 23 | 23 | 8 | 7 | 3.34 | .279 | 1.14 | 6.3 | 4.0 | 7.7 | 142.2 | 100 | 53 | 53 | 10 | 63 | 121 | 0 | 0 | 0 | 0 | 15 | 3 | 9 | 3.61 |
| SP | Mathewson, C.Mathewson, Christy >> | 28 | 1908 | R | 82 | 24 | 23 | 5 | 14 | 4.96 | .310 | 1.33 | 9.5 | 2.4 | 5.2 | 152.1 | 161 | 88 | 84 | 20 | 41 | 87 | 3 | 0 | 0 | 1 | 10 | 3 | 2 | 4.43 |
| SP | Harden, R.Harden, Rich >> | 27 | 2008 | R | 60 | 23 | 21 | 9 | 6 | 5.12 | .319 | 1.39 | 8.3 | 4.2 | 7.9 | 123.0 | 114 | 70 | 70 | 15 | 57 | 108 | 0 | 0 | 0 | 0 | 8 | 2 | 2 | 4.27 |
| RP | Devine, J.Devine, Joey >> | 25 | 2008 | R | 80 | 66 | 0 | 5 | 3 | 2.61 | .301 | 1.26 | 7.7 | 3.7 | 8.0 | 69.0 | 59 | 20 | 20 | 5 | 28 | 61 | 0 | 8 | 2 | 0 | 0 | 2 | 0 | 3.48 |
| RP | Balfour, G.Balfour, Grant >> | 31 | 2008 | R | 74 | 43 | 0 | 3 | 0 | 3.86 | .314 | 1.31 | 6.8 | 5.1 | 9.0 | 44.1 | 33 | 22 | 19 | 8 | 25 | 44 | 0 | 6 | 3 | 0 | 0 | 3 | 3 | 5.27 |
| RP | Britton, Z.Britton, Zach >> | 28 | 2016 | L | 78 | 82 | 0 | 2 | 1 | 2.26 | .242 | 0.96 | 5.1 | 3.6 | 7.4 | 63.2 | 36 | 19 | 16 | 2 | 25 | 52 | 0 | 3 | 2 | 0 | 0 | 0 | 5 | 2.95 |
| RP | Treinen, B.Treinen, Blake >> | 30 | 2018 | R | 79 | 37 | 0 | 5 | 3 | 2.90 | .290 | 1.23 | 6.4 | 4.8 | 8.6 | 49.2 | 35 | 18 | 16 | 0 | 26 | 47 | 0 | 3 | 1 | 0 | 0 | 0 | 2 | 2.67 |