| SP | Lundgren, C.Lundgren, Carl | 30 | Cubs | R | 106.0 | 15 | 15 | 11 | 2 | 1.85 | .255 | 1.01 | 5.4 | 3.8 | 3.7 | 121.2 | 72 | 32 | 25 | 1 | 51 | 50 | 6 | 0 | 0 | 3 | 14 | 2 | 2 | 3.60 |
| SP | Overall, O.Overall, Orval | 29 | Reds | R | 81.0 | 15 | 15 | 10 | 3 | 2.73 | .292 | 1.21 | 7.5 | 3.4 | 4.8 | 115.1 | 96 | 36 | 35 | 5 | 43 | 61 | 3 | 0 | 0 | 1 | 11 | 4 | 1 | 3.73 |
| SP | Swormstedt, L.Swormstedt, Len | 30 | Reds | R | 56.0 | 16 | 16 | 7 | 8 | 3.56 | .282 | 1.15 | 8.1 | 2.3 | 3.9 | 126.1 | 113 | 56 | 50 | 4 | 32 | 55 | 13 | 0 | 0 | 0 | 10 | 4 | 0 | 3.40 |
| SP | Mathewson, C.Mathewson, Christy | 30 | Giants | R | 48.0 | 16 | 16 | 7 | 4 | 3.79 | .299 | 1.25 | 9.2 | 2.1 | 5.5 | 114.0 | 116 | 54 | 48 | 2 | 27 | 70 | 1 | 0 | 0 | 0 | 10 | 3 | 2 | 2.79 |