| SP | Alexander, P.Alexander, Pete >> | 28 | 1915 | R | 88 | 31 | 31 | 15 | 11 | 3.82 | .283 | 1.17 | 8.4 | 2.1 | 4.2 | 221.1 | 206 | 99 | 94 | 27 | 52 | 103 | 5 | 0 | 0 | 2 | 18 | 4 | 4 | 4.42 |
| SP | McLain, D.McLain, Denny >> | 24 | 1968 | R | 78 | 30 | 30 | 11 | 11 | 4.63 | .308 | 1.31 | 8.9 | 2.9 | 5.1 | 194.1 | 192 | 102 | 100 | 18 | 63 | 111 | 5 | 0 | 0 | 1 | 14 | 4 | 3 | 4.10 |
| RP | Gallegos, G.Gallegos, Giovanny >> | 27 | 2019 | R | 82 | 61 | 0 | 2 | 1 | 3.34 | .324 | 1.38 | 8.2 | 4.3 | 8.5 | 67.1 | 61 | 26 | 25 | 6 | 32 | 63 | 0 | 5 | 1 | 0 | 0 | 4 | 1 | 3.90 |
| RP | Pagan, E.Pagan, Emilio >> | 28 | 2019 | R | 77 | 45 | 0 | 4 | 2 | 3.83 | .288 | 1.19 | 6.5 | 4.2 | 7.1 | 47.0 | 34 | 20 | 20 | 5 | 22 | 37 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 4.28 |
| RP | Wilhelm, H.Wilhelm, Hoyt >> | 43 | 1965 | R | 68 | 35 | 0 | 1 | 2 | 3.94 | .280 | 1.15 | 7.1 | 3.2 | 4.9 | 48.0 | 38 | 22 | 21 | 4 | 17 | 26 | 0 | 2 | 0 | 0 | 0 | 1 | 3 | 4.13 |
| SP | Pfiester, J.Pfiester, Jack >> | 28 | 1906 | L | 74 | 21 | 0 | 5 | 4 | 4.04 | .296 | 1.24 | 8.6 | 2.5 | 4.4 | 89.0 | 85 | 41 | 40 | 10 | 25 | 44 | 0 | 0 | 1 | 0 | 0 | 2 | 2 | 4.38 |
| CL | Doolittle, S.Doolittle, Sean † >> | 31 | 2018 | L | 99 | 69 | 0 | 7 | 3 | 1.59 | .230 | 0.89 | 5.9 | 2.2 | 8.8 | 79.1 | 52 | 15 | 14 | 5 | 19 | 77 | 0 | 40 | 5 | 0 | 0 | 0 | 1 | 2.59 |