| SP | Perry, G.Perry, Gaylord † | Isotopes | R | 100.0 | 20 | 20 | 13 | 5 | 3.65 | .297 | 1.23 | 8.1 | 3.0 | 7.2 | 155.1 | 140 | 63 | 63 | 17 | 51 | 124 | 9 | 0 | 0 | 3 | 9 | 6 | 3 | 3.93 |
| SP | Richard, J.Richard, J.R. † | Ants | R | 89.0 | 21 | 21 | 12 | 7 | 3.40 | .295 | 1.22 | 6.6 | 4.3 | 8.6 | 156.0 | 115 | 59 | 59 | 16 | 75 | 149 | 3 | 0 | 0 | 1 | 12 | 6 | 3 | 3.98 |
| SP | Nelson, R.Nelson, Roger † | Chiefs | R | 84.0 | 20 | 20 | 13 | 2 | 3.47 | .309 | 1.30 | 8.4 | 3.3 | 5.2 | 109.0 | 102 | 44 | 42 | 11 | 40 | 63 | 0 | 0 | 0 | 0 | 8 | 4 | 1 | 4.37 |
| SP | deGrom, J.deGrom, Jacob † $ | Warriors | R | 83.0 | 21 | 21 | 9 | 4 | 2.85 | .254 | 0.98 | 6.4 | 2.4 | 9.6 | 142.0 | 101 | 46 | 45 | 21 | 38 | 152 | 1 | 0 | 0 | 0 | 16 | 6 | 0 | 3.71 |
| CL | Nathan, J.Nathan, Joe † $ | Isotopes | R | 81.0 | 29 | 0 | 0 | 1 | 1.00 | .257 | 1.00 | 6.0 | 3.0 | 11.0 | 27.0 | 18 | 6 | 3 | 1 | 9 | 33 | 0 | 28 | 1 | 0 | 0 | 1 | 1 | 2.15 |
| CL | Jansen, K.Jansen, Kenley † | Cyclones | R | 75.5 | 51 | 0 | 1 | 5 | 3.23 | .274 | 1.08 | 7.5 | 2.2 | 10.4 | 53.0 | 44 | 19 | 19 | 7 | 13 | 61 | 0 | 27 | 2 | 0 | 0 | 3 | 0 | 3.32 |