| SP | Leonard, D.Leonard, Dutch >> | 22 | 1914 | L | 91 | 29 | 29 | 15 | 4 | 3.23 | .282 | 1.16 | 6.6 | 3.9 | 5.0 | 184.0 | 134 | 67 | 66 | 12 | 79 | 102 | 0 | 0 | 0 | 0 | 22 | 4 | 4 | 4.09 |
| SP | Mathewson, C.Mathewson, Christy † >> | 28 | 1908 | R | 82 | 28 | 28 | 18 | 6 | 3.04 | .267 | 1.08 | 7.6 | 2.2 | 4.0 | 201.1 | 169 | 71 | 68 | 25 | 49 | 89 | 7 | 0 | 0 | 1 | 20 | 2 | 3 | 4.49 |
| SP | Reulbach, E.Reulbach, Ed >> | 24 | 1906 | R | 61 | 28 | 28 | 14 | 7 | 3.31 | .280 | 1.14 | 6.8 | 3.6 | 3.9 | 195.2 | 147 | 74 | 72 | 10 | 77 | 85 | 4 | 0 | 0 | 3 | 18 | 4 | 6 | 4.04 |
| RP | Bautista, F.Bautista, Félix >> | 28 | 2023 | R | 74 | 89 | 0 | 11 | 5 | 4.76 | .315 | 1.37 | 8.3 | 4.0 | 10.7 | 96.1 | 89 | 54 | 51 | 13 | 43 | 114 | 0 | 1 | 5 | 0 | 0 | 1 | 8 | 3.76 |
| RP | Balfour, G.Balfour, Grant >> | 31 | 2008 | R | 75 | 68 | 0 | 7 | 1 | 1.82 | .283 | 1.18 | 5.9 | 4.8 | 7.7 | 79.1 | 52 | 16 | 16 | 3 | 42 | 68 | 0 | 3 | 4 | 0 | 0 | 0 | 3 | 3.37 |
| RP | Soriano, R.Soriano, Rafael >> | 24 | 2003 | R | 84 | 49 | 0 | 1 | 2 | 2.80 | .286 | 1.18 | 6.8 | 3.8 | 8.8 | 45.0 | 34 | 17 | 14 | 2 | 19 | 44 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 2.96 |
| CL | Williams, D.Williams, Devin † >> | 28 | 2023 | R | 72 | 68 | 0 | 5 | 7 | 2.83 | .261 | 1.03 | 4.2 | 5.0 | 10.9 | 70.0 | 33 | 25 | 22 | 7 | 39 | 85 | 0 | 37 | 5 | 0 | 0 | 2 | 0 | 3.63 |