| CL | Chapman, A.Chapman, Aroldis † | Monarchs | L | 96.0 | 44 | 0 | 5 | 3 | 1.94 | .250 | 1.00 | 4.8 | 4.2 | 8.5 | 51.0 | 27 | 12 | 11 | 0 | 24 | 48 | 0 | 24 | 4 | 0 | 0 | 0 | 4 | 2.53 |
| SP | deGrom, J.deGrom, Jacob † | Monarchs | R | 85.0 | 21 | 21 | 9 | 6 | 2.58 | .267 | 1.07 | 7.2 | 2.5 | 9.2 | 150.0 | 120 | 43 | 43 | 13 | 41 | 153 | 0 | 0 | 0 | 0 | 16 | 3 | 0 | 2.97 |
| SP | Arrieta, J.Arrieta, Jake † | Lions | R | 77.0 | 21 | 21 | 10 | 3 | 3.36 | .278 | 1.14 | 7.5 | 2.8 | 7.1 | 131.1 | 109 | 53 | 49 | 8 | 41 | 103 | 1 | 0 | 0 | 1 | 13 | 2 | 4 | 3.21 |
| SP | Martinez, P.Martinez, Pedro $ | Ponderosa's | R | 71.0 | 21 | 21 | 9 | 5 | 3.97 | .304 | 1.30 | 8.6 | 3.1 | 8.1 | 154.1 | 148 | 71 | 68 | 20 | 53 | 139 | 5 | 0 | 0 | 3 | 9 | 1 | 1 | 3.94 |