| SP | Alexander, P.Alexander, Pete † $$ | Classics | R | 168.0 | 24 | 24 | 19 | 4 | 2.56 | .244 | 0.96 | 6.4 | 2.3 | 5.0 | 204.0 | 144 | 64 | 58 | 14 | 52 | 113 | 16 | 0 | 0 | 1 | 20 | 2 | 3 | 3.58 |
| SP | Leonard, D.Leonard, Dutch † $ | GRAYS | L | 117.0 | 25 | 25 | 15 | 5 | 2.61 | .250 | 1.00 | 6.1 | 3.0 | 5.0 | 165.2 | 111 | 51 | 48 | 11 | 55 | 92 | 2 | 0 | 0 | 0 | 19 | 0 | 2 | 3.75 |
| SP | Martinez, P.Martinez, Pedro † # | Bees | R | 112.0 | 25 | 25 | 13 | 9 | 3.51 | .258 | 1.02 | 6.9 | 2.2 | 8.5 | 197.1 | 152 | 78 | 77 | 21 | 49 | 186 | 13 | 0 | 0 | 5 | 16 | 5 | 2 | 3.32 |
| SP | Arrieta, J.Arrieta, Jake † | Classics | R | 102.0 | 25 | 25 | 13 | 6 | 3.22 | .292 | 1.21 | 7.7 | 3.2 | 7.6 | 176.1 | 150 | 71 | 63 | 9 | 63 | 148 | 3 | 0 | 0 | 0 | 19 | 5 | 6 | 3.14 |
| CL | Kimbrel, C.Kimbrel, Craig † | Dead Possums | R | 90.5 | 37 | 0 | 5 | 2 | 1.54 | .222 | 0.83 | 4.2 | 3.3 | 12.5 | 41.0 | 19 | 8 | 7 | 1 | 15 | 57 | 0 | 21 | 2 | 0 | 0 | 1 | 2 | 1.71 |
| SP | Brown, M.Brown, Mordecai $ | Oaks | R | 79.0 | 23 | 23 | 10 | 6 | 3.14 | .281 | 1.15 | 7.5 | 2.9 | 5.1 | 152.0 | 126 | 55 | 53 | 6 | 49 | 86 | 2 | 0 | 0 | 1 | 16 | 3 | 4 | 3.41 |
| SP | Mathewson, C.Mathewson, Christy | Mets | R | 76.0 | 24 | 24 | 12 | 8 | 4.03 | .286 | 1.19 | 9.0 | 1.7 | 5.0 | 181.0 | 180 | 86 | 81 | 23 | 35 | 100 | 5 | 0 | 0 | 0 | 14 | 2 | 3 | 4.16 |