| SP | Whitney, J.Whitney, Jim † | Bravos | R | 107.0 | 19 | 19 | 12 | 4 | 2.83 | .266 | 1.07 | 8.2 | 1.5 | 5.7 | 149.2 | 135 | 59 | 47 | 16 | 25 | 95 | 11 | 0 | 0 | 2 | 14 | 3 | 5 | 3.68 |
| SP | Chamberlain, E.Chamberlain, Elton † | Cardinals | R | 91.0 | 20 | 20 | 9 | 6 | 2.91 | .267 | 1.08 | 6.7 | 3.0 | 4.2 | 170.0 | 127 | 59 | 55 | 11 | 56 | 79 | 10 | 0 | 0 | 3 | 14 | 3 | 0 | 3.95 |
| SP | Flaherty, J.Flaherty, Jack † | Cardinals | R | 86.0 | 19 | 19 | 10 | 3 | 2.61 | .265 | 1.07 | 6.3 | 3.3 | 7.4 | 124.0 | 87 | 38 | 36 | 9 | 46 | 102 | 2 | 0 | 0 | 0 | 12 | 1 | 2 | 3.44 |
| CL | Kimbrel, C.Kimbrel, Craig † | Cubs | R | 83.0 | 31 | 0 | 2 | 2 | 0.84 | .236 | 0.90 | 4.2 | 3.9 | 11.0 | 32.1 | 15 | 3 | 3 | 0 | 14 | 39 | 0 | 24 | 0 | 0 | 0 | 1 | 3 | 1.97 |
| RP | Charlton, N.Charlton, Norm † | Mariners | L | 82.0 | 47 | 0 | 11 | 3 | 3.09 | .276 | 1.11 | 6.3 | 3.8 | 8.4 | 93.1 | 65 | 32 | 32 | 7 | 39 | 87 | 0 | 4 | 3 | 0 | 0 | 3 | 4 | 3.46 |
| RP | Helsley, R.Helsley, Ryan † | Cardinals | R | 81.0 | 49 | 0 | 7 | 1 | 1.15 | .233 | 0.89 | 4.5 | 3.6 | 7.3 | 62.2 | 31 | 8 | 8 | 2 | 25 | 50 | 0 | 8 | 2 | 0 | 0 | 1 | 1 | 3.06 |