| SP | Leonard, D.Leonard, Dutch # >> | 22 | 1914 | L | 91 | 12 | 12 | 3 | 6 | 4.69 | .278 | 1.11 | 7.5 | 2.5 | 5.5 | 71.0 | 59 | 37 | 37 | 9 | 20 | 43 | 0 | 0 | 0 | 0 | 8 | 3 | 1 | 4.41 |
| SP | Fernandez, S.Fernandez, Sid >> | 23 | 1985 | L | 49 | 11 | 11 | 4 | 3 | 3.86 | .310 | 1.29 | 7.9 | 3.8 | 7.7 | 67.2 | 59 | 30 | 29 | 9 | 28 | 57 | 1 | 0 | 0 | 1 | 6 | 4 | 0 | 4.48 |
| SP | Mathewson, C.Mathewson, Christy >> | 28 | 1908 | R | 83 | 11 | 11 | 5 | 4 | 4.10 | .320 | 1.37 | 8.6 | 3.7 | 3.4 | 68.0 | 65 | 33 | 31 | 8 | 28 | 26 | 0 | 0 | 0 | 0 | 6 | 3 | 1 | 5.13 |
| RP | Williams, D.Williams, Devin >> | 28 | 2023 | R | 73 | 38 | 0 | 1 | 1 | 3.41 | .264 | 1.04 | 6.1 | 3.5 | 9.0 | 31.2 | 21 | 13 | 12 | 4 | 12 | 31 | 0 | 1 | 2 | 0 | 0 | 1 | 1 | 3.94 |
| RP | Bautista, F.Bautista, Félix >> | 28 | 2023 | R | 75 | 29 | 0 | 1 | 1 | 2.42 | .278 | 1.15 | 4.8 | 5.5 | 11.4 | 26.0 | 14 | 7 | 7 | 2 | 16 | 33 | 0 | 6 | 2 | 0 | 0 | 0 | 3 | 3.31 |
| RP | Valverde, J.Valverde, Jose >> | 24 | 2003 | R | 64 | 16 | 0 | 2 | 1 | 0.52 | .257 | 1.04 | 3.7 | 5.8 | 6.9 | 17.1 | 7 | 2 | 1 | 0 | 11 | 13 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 3.41 |
| RP | Urbina, U.Urbina, Ugueth >> | 24 | 1998 | R | 59 | 8 | 0 | 2 | 0 | 1.42 | .174 | 0.63 | 3.0 | 3.0 | 6.0 | 6.1 | 2 | 1 | 1 | 0 | 2 | 4 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2.67 |
| RP | LaRoche, D.LaRoche, Dave >> | 28 | 1976 | L | 33 | 30 | 0 | 2 | 1 | 4.42 | .295 | 1.25 | 8.0 | 3.5 | 7.5 | 18.1 | 16 | 9 | 9 | 0 | 7 | 15 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 2.50 |
| RP | Messersmith, A.Messersmith, Andy >> | 23 | 1968 | R | 58 | 13 | 0 | 1 | 0 | 0.75 | .250 | 1.00 | 5.3 | 3.8 | 2.6 | 24.0 | 14 | 3 | 2 | 1 | 10 | 7 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 4.21 |
| SP | McDowell, S.McDowell, Sam >> | 23 | 1965 | L | 44 | 6 | 1 | 1 | 0 | 9.37 | .364 | 1.71 | 10.1 | 5.6 | 6.8 | 16.1 | 18 | 17 | 17 | 6 | 10 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 8.25 |