| 28 | Bert Blyleven | - | 5 | 38 | 38 | 278.1 | 2.81 | 1.17 | 8.63 | 0.68 | 1.91 | 7.24 | 0.26 | 1.03 | 23 | 5 | 1047 | .255 | 1126 | -- | -- | -- | -- |
| 31 | Jim Perry | - | 21 | 40 | 39 | 270.0 | 4.23 | 1.35 | 8.77 | 1.30 | 3.40 | 4.20 | 0.81 | 0.90 | 20 | 5 | 1017 | .259 | 1147 | -- | -- | -- | -- |
| 36 | Jim Kaat | - | 18 | 39 | 38 | 260.1 | 3.32 | 1.24 | 9.51 | 0.55 | 1.62 | 4.74 | 0.34 | 0.98 | 24 | 6 | 1027 | .268 | 1098 | -- | -- | -- | -- |
| 23 | Ray Corbin | - | 67 | 52 | 11 | 140.1 | 4.10 | 1.50 | 9.04 | 1.22 | 4.49 | 5.32 | 0.84 | 1.27 | 8 | 3 | 533 | .265 | 620 | -- | -- | -- | -- |
| 21 | Tom Hall | - | 59 | 48 | 11 | 129.2 | 3.33 | 1.25 | 7.22 | 0.90 | 4.03 | 9.51 | 0.42 | 0.68 | 6 | 0 | 483 | .215 | 549 | -- | -- | -- | -- |
| 35 | Stan Williams | - | - | 46 | 1 | 78.0 | 4.15 | 1.37 | 7.27 | 0.81 | 5.08 | 5.42 | 0.94 | 0.54 | 0 | 8 | 285 | .221 | 343 | -- | -- | -- | -- |
| 32 | Steve Luebber | - | - | 18 | 12 | 68.0 | 5.03 | 1.62 | 9.66 | 0.93 | 4.90 | 4.63 | 1.06 | 0.96 | 4 | 4 | 263 | .278 | 308 | -- | -- | -- | -- |
| 24,33 | Pete Hamm | - | - | 13 | 8 | 44.0 | 6.75 | 1.66 | 11.25 | 1.43 | 3.68 | 3.27 | 1.13 | 1.04 | 3 | 1 | 178 | .309 | 201 | -- | -- | -- | -- |
| 16 | Ron Perranoski | - | 49 | 36 | 0 | 42.2 | 6.75 | 2.06 | 12.66 | 0.42 | 5.91 | 4.43 | 1.33 | 1.65 | 0 | 3 | 178 | .337 | 218 | -- | -- | -- | -- |
| 30 | Hal Haydel | - | - | 31 | 0 | 40.0 | 4.27 | 1.33 | 7.42 | 0.67 | 4.50 | 6.52 | 0.69 | 1.00 | 0 | 2 | 136 | .243 | 165 | -- | -- | -- | -- |
| 19 | Jim Strickland | - | - | 24 | 0 | 31.1 | 1.44 | 1.21 | 5.74 | 0.57 | 5.17 | 6.03 | 0.86 | 1.81 | 0 | 2 | 109 | .183 | 133 | -- | -- | -- | -- |
| 16 | Bob Gebhard | - | - | 17 | 0 | 18.0 | 3.00 | 1.56 | 8.50 | -- | 5.50 | 6.50 | 0.85 | 1.44 | 0 | 1 | 70 | .243 | 85 | -- | -- | -- | -- |
| 24 | Steve Barber | - | - | 4 | 2 | 11.2 | 6.17 | 1.80 | 6.17 | 1.54 | 10.03 | 3.09 | 3.25 | 0.70 | 0 | 0 | 42 | .190 | 56 | -- | -- | -- | -- |
| 19 | Sal Campisi | - | - | 6 | 0 | 4.1 | 4.15 | 2.08 | 10.38 | 2.08 | 8.31 | 4.15 | 2.00 | 1.50 | 0 | 0 | 17 | .294 | 21 | -- | -- | -- | -- |