| SP | Cole, G.Cole, Gerrit † >> | 28 | 2019 | R | 96 | 28 | 28 | 14 | 12 | 2.89 | .266 | 1.07 | 7.3 | 2.4 | 10.1 | 199.1 | 162 | 69 | 64 | 19 | 52 | 224 | 4 | 0 | 0 | 2 | 20 | 3 | 3 | 2.82 |
| SP | Buehler, W.Buehler, Walker >> | 23 | 2018 | R | 84 | 28 | 28 | 6 | 13 | 7.50 | .380 | 1.79 | 12.3 | 3.9 | 9.4 | 141.2 | 192 | 120 | 118 | 27 | 61 | 148 | 0 | 0 | 0 | 0 | 7 | 7 | 2 | 4.84 |
| SP | Hunter, C.Hunter, Catfish >> | 26 | 1972 | R | 84 | 28 | 28 | 12 | 12 | 4.77 | .321 | 1.36 | 9.4 | 2.9 | 6.4 | 205.2 | 215 | 109 | 109 | 40 | 65 | 146 | 10 | 0 | 0 | 1 | 12 | 12 | 6 | 5.24 |
| SP | Flaherty, J.Flaherty, Jack >> | 23 | 2019 | R | 83 | 27 | 26 | 11 | 7 | 5.41 | .335 | 1.47 | 8.9 | 4.4 | 8.7 | 154.2 | 152 | 97 | 93 | 32 | 76 | 149 | 0 | 0 | 0 | 0 | 13 | 6 | 3 | 5.36 |
| RP | Doolittle, S.Doolittle, Sean >> | 31 | 2018 | L | 98 | 88 | 0 | 1 | 1 | 2.81 | .273 | 1.13 | 7.1 | 3.0 | 9.5 | 80.0 | 63 | 25 | 25 | 11 | 27 | 84 | 0 | 8 | 5 | 0 | 0 | 0 | 1 | 3.70 |
| RP | Gossage, R.Gossage, Rich >> | 30 | 1981 | R | 88 | 77 | 0 | 4 | 3 | 3.83 | .288 | 1.19 | 6.4 | 4.3 | 8.8 | 80.0 | 57 | 34 | 34 | 7 | 38 | 78 | 0 | 9 | 2 | 0 | 0 | 2 | 3 | 3.69 |
| RP | Chapman, A.Chapman, Aroldis >> | 24 | 2012 | L | 87 | 48 | 0 | 5 | 8 | 4.31 | .337 | 1.49 | 7.4 | 6.1 | 8.7 | 56.1 | 46 | 27 | 27 | 8 | 38 | 54 | 0 | 7 | 3 | 0 | 0 | 2 | 4 | 5.07 |