| SP | Glasnow, T.Glasnow, Tyler >> | 25 | 2019 | R | 99 | 34 | 34 | 19 | 10 | 3.23 | .272 | 1.10 | 7.9 | 2.0 | 10.0 | 195.1 | 171 | 73 | 70 | 27 | 43 | 216 | 0 | 0 | 0 | 0 | 19 | 5 | 2 | 3.32 |
| SP | Yamamoto, J.Yamamoto, Jordan >> | 23 | 2019 | R | 87 | 32 | 32 | 8 | 11 | 5.13 | .329 | 1.44 | 8.6 | 4.3 | 9.2 | 170.1 | 163 | 97 | 97 | 28 | 82 | 173 | 0 | 0 | 0 | 0 | 7 | 6 | 2 | 4.66 |
| SP | Chirinos, Y.Chirinos, Yonny # >> | 25 | 2019 | R | 85 | 33 | 33 | 12 | 12 | 5.28 | .328 | 1.41 | 10.1 | 2.6 | 9.3 | 177.1 | 199 | 109 | 104 | 33 | 51 | 183 | 0 | 0 | 0 | 0 | 8 | 10 | 4 | 4.39 |
| SP | Odorizzi, J.Odorizzi, Jake >> | 29 | 2019 | R | 77 | 30 | 30 | 6 | 14 | 4.98 | .348 | 1.54 | 9.8 | 4.1 | 10.6 | 164.1 | 179 | 96 | 91 | 32 | 74 | 193 | 0 | 0 | 0 | 0 | 8 | 10 | 5 | 4.72 |
| RP | Gallegos, G.Gallegos, Giovanny >> | 27 | 2019 | R | 100 | 84 | 0 | 8 | 2 | 4.09 | .298 | 1.23 | 8.5 | 2.6 | 10.1 | 123.1 | 116 | 58 | 56 | 16 | 36 | 138 | 0 | 2 | 6 | 0 | 0 | 5 | 6 | 3.45 |
| RP | Soria, J.Soria, Joakim >> | 35 | 2019 | R | 88 | 69 | 0 | 5 | 2 | 4.66 | .302 | 1.23 | 8.1 | 3.0 | 10.0 | 73.1 | 66 | 38 | 38 | 15 | 24 | 81 | 0 | 11 | 2 | 0 | 0 | 5 | 3 | 4.64 |
| RP | Anderson, N.Anderson, Nick >> | 28 | 2019 | R | 86 | 42 | 0 | 3 | 2 | 4.93 | .351 | 1.62 | 9.9 | 4.7 | 13.1 | 42.0 | 46 | 23 | 23 | 9 | 22 | 61 | 0 | 6 | 3 | 0 | 0 | 0 | 3 | 4.45 |
| RP | Guerra, J.Guerra, Junior >> | 34 | 2019 | R | 82 | 24 | 0 | 0 | 0 | 5.24 | .356 | 1.61 | 10.6 | 4.1 | 7.8 | 22.1 | 26 | 13 | 13 | 8 | 10 | 19 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 7.50 |
| SP | Marquez, G.Marquez, German >> | 24 | 2019 | R | 66 | 5 | 2 | 0 | 2 | 7.86 | .397 | 1.94 | 12.5 | 5.2 | 10.7 | 26.1 | 36 | 24 | 23 | 5 | 15 | 31 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 4.96 |