| SP | Flaherty, J.Flaherty, Jack | 37 | Giants | R | 85 | 34 | 34 | 17 | 6 | 3.12 | .272 | 1.10 | 7.2 | 2.7 | 9.5 | 219.0 | 176 | 80 | 76 | 20 | 65 | 230 | 2 | 0 | 0 | 2 | 24 | 4 | 5 | 3.03 |
| SP | Paddack, C.Paddack, Chris | 37 | Pirates | R | 92 | 33 | 33 | 19 | 9 | 3.38 | .281 | 1.16 | 7.7 | 2.8 | 9.2 | 205.1 | 175 | 81 | 77 | 23 | 63 | 210 | 0 | 0 | 0 | 0 | 20 | 3 | 1 | 3.38 |
| SP | Rogers, T.Rogers, Trevor # | 28 | Nationals | L | 97 | 34 | 32 | 16 | 9 | 3.92 | .285 | 1.18 | 8.2 | 2.4 | 7.0 | 216.0 | 197 | 99 | 94 | 32 | 57 | 167 | 11 | 0 | 0 | 2 | 17 | 4 | 3 | 4.23 |
| SP | Widener, T.Widener, Taylor | 27 | Padres | R | 95 | 33 | 33 | 18 | 9 | 3.64 | .283 | 1.15 | 7.6 | 2.7 | 7.4 | 255.0 | 216 | 108 | 103 | 26 | 76 | 210 | 10 | 0 | 0 | 1 | 18 | 10 | 9 | 3.69 |
| RP | Castellanos, H.Castellanos, Humberto | 30 | Diamondbacks | R | 95 | 87 | 0 | 9 | 5 | 3.02 | .274 | 1.13 | 7.2 | 3.0 | 7.2 | 176.0 | 140 | 68 | 59 | 18 | 58 | 141 | 0 | 10 | 3 | 0 | 0 | 1 | 3 | 3.73 |
| RP | Javier, C.Javier, Cristian | 33 | Padres | R | 94 | 79 | 0 | 10 | 9 | 2.58 | .287 | 1.18 | 6.9 | 3.7 | 10.4 | 139.1 | 107 | 44 | 40 | 11 | 57 | 160 | 0 | 14 | 6 | 0 | 0 | 4 | 6 | 3.04 |
| RP | Maiava, M.Maiava, Marcus + | 33 | Braves | L | 48 | 75 | 0 | 9 | 4 | 3.41 | .255 | 0.99 | 6.5 | 2.5 | 7.2 | 89.2 | 64 | 44 | 34 | 15 | 25 | 71 | 0 | 5 | 2 | 0 | 0 | 3 | 5 | 4.54 |