| SP | Clevinger, M.Clevinger, Mike † >> | 28 | 2019 | R | 96 | 36 | 36 | 16 | 8 | 4.26 | .309 | 1.30 | 8.6 | 3.1 | 10.6 | 207.0 | 197 | 99 | 98 | 36 | 72 | 243 | 0 | 0 | 0 | 0 | 19 | 9 | 0 | 4.09 |
| SP | Greinke, Z.Greinke, Zack † >> | 36 | 2019 | R | 88 | 35 | 35 | 18 | 10 | 3.56 | .288 | 1.19 | 8.8 | 1.9 | 7.7 | 230.1 | 225 | 95 | 91 | 32 | 49 | 196 | 2 | 0 | 0 | 2 | 22 | 6 | 2 | 3.82 |
| SP | Quantrill, C.Quantrill, Cal # >> | 24 | 2019 | R | 43 | 33 | 31 | 6 | 8 | 6.12 | .346 | 1.55 | 10.6 | 3.5 | 8.6 | 139.2 | 163 | 98 | 95 | 26 | 54 | 133 | 0 | 0 | 0 | 0 | 2 | 5 | 6 | 4.79 |
| RP | Duffey, T.Duffey, Tyler >> | 28 | 2019 | R | 85 | 96 | 0 | 11 | 2 | 4.39 | .336 | 1.47 | 9.5 | 3.9 | 12.5 | 112.2 | 118 | 55 | 55 | 22 | 48 | 156 | 0 | 2 | 5 | 0 | 0 | 5 | 4 | 4.19 |
| RP | Ramirez, N.Ramirez, Noe >> | 29 | 2019 | R | 67 | 91 | 0 | 2 | 4 | 5.74 | .339 | 1.50 | 10.3 | 3.3 | 11.5 | 106.2 | 121 | 69 | 68 | 34 | 39 | 136 | 0 | 3 | 2 | 0 | 0 | 4 | 5 | 5.82 |
| RP | Feliz, M.Feliz, Michael >> | 26 | 2019 | R | 66 | 69 | 0 | 1 | 2 | 4.39 | .324 | 1.41 | 8.3 | 4.4 | 11.5 | 82.0 | 76 | 40 | 40 | 13 | 40 | 105 | 0 | 1 | 0 | 0 | 0 | 2 | 0 | 4.04 |
| CL | Yates, K.Yates, Kirby † >> | 32 | 2019 | R | 98 | 88 | 0 | 7 | 12 | 4.50 | .292 | 1.23 | 7.4 | 3.6 | 10.5 | 92.0 | 76 | 46 | 46 | 15 | 37 | 107 | 0 | 39 | 4 | 0 | 0 | 1 | 4 | 4.03 |