| CL | Kimbrel, C.Kimbrel, Craig † | Mud Skippers | R | 103.0 | 48 | 0 | 1 | 2 | 0.69 | .246 | 0.98 | 5.2 | 3.6 | 9.2 | 52.0 | 30 | 7 | 4 | 0 | 21 | 53 | 0 | 30 | 1 | 0 | 0 | 0 | 4 | 2.17 |
| CL | Gossage, R.Gossage, Rich † | Mustangs | R | 96.0 | 49 | 0 | 5 | 5 | 3.10 | .278 | 1.12 | 7.3 | 2.8 | 7.8 | 58.0 | 47 | 21 | 20 | 8 | 18 | 50 | 0 | 28 | 5 | 0 | 0 | 2 | 0 | 4.10 |
| SP | Arrieta, J.Arrieta, Jake † # | Plunder | R | 92.0 | 21 | 21 | 10 | 8 | 2.92 | .261 | 1.04 | 7.6 | 1.7 | 8.5 | 166.1 | 141 | 57 | 54 | 21 | 32 | 157 | 6 | 0 | 0 | 1 | 14 | 3 | 2 | 3.39 |
| CL | Saito, T.Saito, Takashi † | WEBFOOT | R | 83.0 | 37 | 0 | 2 | 3 | 2.68 | .270 | 1.05 | 7.8 | 1.7 | 8.5 | 37.0 | 32 | 11 | 11 | 2 | 7 | 35 | 0 | 28 | 2 | 0 | 0 | 2 | 0 | 2.54 |
| SP | Kershaw, C.Kershaw, Clayton † | WEBFOOT | L | 82.0 | 21 | 21 | 11 | 7 | 3.45 | .287 | 1.19 | 8.5 | 2.3 | 9.4 | 156.1 | 147 | 67 | 60 | 22 | 39 | 163 | 2 | 0 | 0 | 0 | 14 | 3 | 5 | 3.55 |
| SP | Johnson, R.Johnson, Randy † | Mud Skippers | L | 82.0 | 20 | 20 | 11 | 3 | 3.62 | .284 | 1.18 | 8.1 | 2.5 | 8.8 | 134.1 | 121 | 55 | 54 | 13 | 37 | 131 | 3 | 0 | 0 | 0 | 12 | 2 | 0 | 3.18 |
| SP | Santana, J.Santana, Johan # | Cannonballs | L | 82.0 | 19 | 19 | 11 | 4 | 3.71 | .260 | 1.05 | 7.2 | 2.2 | 8.7 | 143.0 | 115 | 59 | 59 | 19 | 35 | 138 | 3 | 0 | 0 | 1 | 12 | 1 | 5 | 3.55 |