| SP | McNally, D.McNally, Dave † | Sloths | L | 170.0 | 33 | 33 | 18 | 8 | 2.90 | .266 | 1.08 | 7.2 | 2.5 | 5.4 | 276.1 | 221 | 91 | 89 | 26 | 77 | 165 | 17 | 0 | 0 | 2 | 23 | 3 | 3 | 3.90 |
| CL | Kimbrel, C.Kimbrel, Craig † | Frogs | R | 143.5 | 91 | 0 | 7 | 10 | 3.13 | .288 | 1.20 | 6.9 | 3.9 | 10.6 | 103.2 | 79 | 50 | 36 | 9 | 45 | 121 | 0 | 39 | 0 | 0 | 0 | 2 | 7 | 3.16 |
| SP | Reulbach, E.Reulbach, Ed † | Sloths | R | 142.0 | 29 | 29 | 18 | 8 | 2.71 | .287 | 1.18 | 6.2 | 4.4 | 3.9 | 205.2 | 142 | 67 | 62 | 8 | 101 | 89 | 5 | 0 | 0 | 5 | 25 | 5 | 2 | 4.19 |
| RP | Betances, D.Betances, Dellin † | Narrows | R | 112.5 | 84 | 0 | 11 | 3 | 2.59 | .271 | 1.12 | 6.6 | 3.4 | 9.5 | 111.0 | 82 | 32 | 32 | 4 | 42 | 117 | 0 | 11 | 2 | 0 | 0 | 0 | 2 | 2.50 |
| SP | Fernandez, J.Fernandez, Jose # | Bombers | R | 109.0 | 31 | 31 | 17 | 7 | 3.80 | .309 | 1.34 | 8.2 | 3.9 | 7.7 | 191.2 | 173 | 86 | 81 | 17 | 83 | 164 | 0 | 0 | 0 | 0 | 15 | 1 | 4 | 3.76 |
| CL | Chapman, A.Chapman, Aroldis † | Valley | L | 108.0 | 72 | 0 | 2 | 4 | 2.07 | .283 | 1.17 | 7.1 | 3.5 | 11.4 | 82.2 | 65 | 21 | 19 | 2 | 32 | 104 | 0 | 30 | 3 | 0 | 0 | 1 | 5 | 1.99 |
| SP | Johnson, R.Johnson, Randy | Bombers | L | 107.0 | 32 | 32 | 17 | 9 | 3.88 | .287 | 1.20 | 8.2 | 2.6 | 7.4 | 201.2 | 183 | 89 | 87 | 13 | 58 | 165 | 2 | 0 | 0 | 1 | 14 | 2 | 4 | 3.09 |
| SP | Leonard, D.Leonard, Dutch | Bombers | L | 106.0 | 31 | 31 | 15 | 7 | 3.40 | .266 | 1.07 | 6.5 | 3.2 | 5.2 | 198.2 | 143 | 76 | 75 | 22 | 70 | 115 | 1 | 0 | 0 | 0 | 22 | 3 | 4 | 4.39 |