| Primary | ||||
| Name | P | BF-RL | BF-DMB | Usage |
| Milt Wilcox | sp | 669 | 581 | 87 |
| Paul Splittorff | sp | 876 | 812 | 93 |
| Nolan Ryan | sp | 1154 | 1150 | 100 |
| Dave Downs | sp | 89 | 103 | 116 |
| Les Cain | sp | 103 | 164 | 159 |
| John Curtis | sp | 652 | 440 | 67 |
| Woodie Fryman | sp | 986 | 925 | 94 |
| Dave Goltz | sp | 368 | 351 | 95 |
| Vicente Romo | mr | 216 | 263 | 122 |
| Bill Lee | mr | 346 | 332 | 96 |
| Bucky Brandon | mr | 454 | 474 | 104 |
| Jim Ray | mr | 393 | 266 | 68 |
| Pedro Borbon | mr | 501 | 364 | 73 |
| Total | 6807 | 6225 | 0 | |