| SP | Kluber, C.Kluber, Corey >> | 31 | 2017 | R | 89 | 10 | 10 | 3 | 5 | 5.22 | .312 | 1.35 | 9.1 | 3.0 | 9.7 | 69.0 | 70 | 40 | 40 | 8 | 23 | 74 | 2 | 0 | 0 | 1 | 4 | 1 | 4 | 3.41 |
| SP | Cicotte, E.Cicotte, Eddie >> | 33 | 1917 | R | 74 | 7 | 5 | 3 | 1 | 5.45 | .339 | 1.51 | 10.5 | 3.3 | 5.5 | 36.1 | 42 | 26 | 22 | 5 | 13 | 22 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 4.75 |
| SP | Chesbro, J.Chesbro, Jack >> | 30 | 1904 | R | 65 | 5 | 5 | 1 | 1 | 6.40 | .358 | 1.67 | 11.3 | 3.9 | 3.7 | 32.1 | 40 | 27 | 23 | 3 | 14 | 13 | 0 | 0 | 0 | 0 | 2 | 0 | 3 | 4.72 |
| SP | Hunter, C.Hunter, Catfish >> | 26 | 1972 | R | 81 | 10 | 10 | 2 | 4 | 6.06 | .336 | 1.48 | 9.8 | 3.6 | 6.0 | 65.1 | 71 | 48 | 44 | 16 | 26 | 43 | 2 | 0 | 0 | 0 | 4 | 2 | 1 | 6.17 |
| CL | Jansen, K.Jansen, Kenley >> | 28 | 2016 | R | 97 | 12 | 0 | 2 | 3 | 8.16 | .368 | 1.67 | 12.2 | 3.2 | 9.6 | 14.1 | 19 | 13 | 13 | 2 | 5 | 15 | 0 | 3 | 1 | 0 | 0 | 1 | 0 | 4.00 |
| SU | Gossage, R.Gossage, Rich >> | 30 | 1981 | R | 89 | 18 | 0 | 1 | 0 | 3.94 | .333 | 1.50 | 7.3 | 6.2 | 8.4 | 16.0 | 13 | 7 | 7 | 1 | 11 | 15 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 4.00 |
| RP | Gallegos, G.Gallegos, Giovanny >> | 27 | 2019 | R | 82 | 22 | 0 | 0 | 4 | 5.16 | .284 | 1.19 | 8.2 | 2.9 | 9.0 | 22.2 | 20 | 16 | 13 | 5 | 7 | 22 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 4.91 |