| SP | Flaherty, J.Flaherty, Jack | 25 | Cardinals | R | 100 | 35 | 35 | 20 | 10 | 2.84 | .255 | 0.99 | 6.2 | 2.7 | 10.4 | 259.2 | 179 | 82 | 82 | 29 | 78 | 300 | 6 | 0 | 0 | 2 | 28 | 10 | 6 | 3.16 |
| SP | Castillo, L.Castillo, Luis | 28 | Reds | R | 95 | 35 | 35 | 16 | 10 | 3.58 | .304 | 1.26 | 7.2 | 4.2 | 10.8 | 231.0 | 184 | 96 | 92 | 33 | 108 | 276 | 3 | 0 | 0 | 1 | 20 | 10 | 10 | 4.00 |
| SP | Buehler, W.Buehler, Walker | 26 | Dodgers | R | 96 | 40 | 40 | 19 | 11 | 3.68 | .278 | 1.12 | 7.9 | 2.2 | 9.8 | 249.2 | 218 | 108 | 102 | 38 | 62 | 270 | 2 | 0 | 0 | 2 | 25 | 9 | 4 | 3.67 |
| SP | Rodriguez, J.Rodriguez, Jefry + | 27 | Phillies | R | 86 | 33 | 33 | 12 | 8 | 3.78 | .291 | 1.22 | 7.9 | 3.1 | 7.5 | 188.0 | 164 | 86 | 79 | 29 | 65 | 157 | 0 | 0 | 0 | 0 | 15 | 3 | 9 | 4.42 |
| RP | Gallegos, G.Gallegos, Giovanny | 29 | Cardinals | R | 100 | 84 | 0 | 16 | 4 | 2.49 | .249 | 0.94 | 5.9 | 2.6 | 8.7 | 141.0 | 93 | 42 | 39 | 10 | 40 | 137 | 0 | 5 | 4 | 0 | 0 | 7 | 3 | 2.98 |
| CL | Johnson, N.Johnson, Nellie | 19 | Diamondbacks | R | 80 | 79 | 0 | 6 | 6 | 4.31 | .322 | 1.42 | 8.5 | 4.3 | 6.3 | 77.1 | 73 | 38 | 37 | 14 | 37 | 54 | 0 | 49 | 5 | 0 | 0 | 0 | 3 | 5.40 |