| SP | Mathewson, C.Mathewson, Christy >> | 28 | 1908 | R | 83 | 32 | 32 | 15 | 13 | 3.56 | .281 | 1.16 | 8.3 | 2.1 | 4.1 | 230.0 | 212 | 101 | 91 | 25 | 54 | 106 | 5 | 0 | 0 | 1 | 20 | 3 | 4 | 4.23 |
| SP | Cicotte, E.Cicotte, Eddie >> | 33 | 1917 | R | 74 | 29 | 29 | 6 | 17 | 6.44 | .372 | 1.75 | 11.7 | 4.0 | 4.0 | 169.0 | 219 | 133 | 121 | 20 | 76 | 76 | 0 | 0 | 0 | 0 | 11 | 5 | 2 | 5.08 |
| SP | Waddell, R.Waddell, Rube >> | 29 | 1905 | L | 67 | 29 | 28 | 12 | 9 | 4.49 | .309 | 1.33 | 8.2 | 3.7 | 5.7 | 188.1 | 172 | 98 | 94 | 20 | 78 | 120 | 5 | 0 | 0 | 1 | 16 | 3 | 0 | 4.40 |
| CL | Gagne, E.Gagne, Eric † >> | 27 | 2003 | R | 98 | 74 | 0 | 3 | 9 | 3.55 | .265 | 1.06 | 5.7 | 3.9 | 10.2 | 78.2 | 49 | 35 | 31 | 3 | 34 | 88 | 0 | 33 | 2 | 0 | 0 | 2 | 1 | 2.63 |
| RP | Gallegos, G.Gallegos, Giovanny >> | 27 | 2019 | R | 82 | 81 | 0 | 5 | 2 | 3.45 | .305 | 1.31 | 8.5 | 3.4 | 9.8 | 91.1 | 86 | 40 | 35 | 11 | 34 | 99 | 0 | 3 | 3 | 0 | 0 | 0 | 4 | 3.52 |
| RP | Treinen, B.Treinen, Blake >> | 30 | 2018 | R | 80 | 57 | 0 | 5 | 1 | 4.71 | .332 | 1.48 | 8.9 | 4.4 | 9.8 | 65.0 | 64 | 36 | 34 | 11 | 32 | 71 | 0 | 3 | 1 | 0 | 0 | 1 | 5 | 4.54 |