| SP | Seaver, T.Seaver, Tom † >> | 27 | 1971 | R | 99 | 38 | 38 | 18 | 12 | 3.25 | .309 | 1.34 | 8.8 | 3.3 | 8.5 | 282.1 | 275 | 110 | 102 | 19 | 103 | 267 | 4 | 0 | 0 | 1 | 27 | 1 | 4 | 3.09 |
| SP | Kirby, C.Kirby, Clay † # >> | 23 | 1971 | R | 86 | 37 | 37 | 18 | 13 | 3.24 | .293 | 1.23 | 7.8 | 3.3 | 7.0 | 275.1 | 237 | 103 | 99 | 19 | 101 | 214 | 8 | 0 | 0 | 4 | 24 | 5 | 10 | 3.50 |
| SP | Splittorff, P.Splittorff, Paul >> | 25 | 1971 | L | 71 | 34 | 34 | 16 | 11 | 3.98 | .317 | 1.38 | 9.4 | 3.1 | 5.6 | 212.1 | 221 | 103 | 94 | 16 | 73 | 133 | 1 | 0 | 0 | 1 | 20 | 2 | 1 | 3.79 |
| RP | Fingers, R.Fingers, Rollie >> | 25 | 1971 | R | 96 | 104 | 0 | 8 | 4 | 2.72 | .297 | 1.23 | 8.3 | 2.8 | 4.9 | 116.0 | 107 | 37 | 35 | 8 | 36 | 63 | 0 | 11 | 4 | 0 | 0 | 4 | 2 | 3.84 |
| RP | Frisella, D.Frisella, Danny >> | 25 | 1971 | R | 77 | 75 | 0 | 6 | 3 | 3.93 | .295 | 1.24 | 6.7 | 4.6 | 8.3 | 75.2 | 56 | 34 | 33 | 6 | 38 | 69 | 0 | 17 | 2 | 0 | 0 | 1 | 3 | 3.76 |
| RP | Lyle, S.Lyle, Sparky # >> | 27 | 1971 | L | 71 | 110 | 0 | 1 | 3 | 4.60 | .313 | 1.37 | 9.2 | 3.3 | 4.8 | 60.2 | 61 | 35 | 31 | 7 | 22 | 32 | 0 | 9 | 5 | 0 | 0 | 0 | 2 | 4.55 |
| RP | Kealey, S.Kealey, Steve >> | 24 | 1971 | R | 57 | 48 | 0 | 5 | 4 | 4.54 | .356 | 1.63 | 8.8 | 6.1 | 5.3 | 41.2 | 40 | 23 | 21 | 1 | 28 | 24 | 0 | 8 | 4 | 0 | 0 | 1 | 1 | 4.27 |
| SP | Niekro, P.Niekro, Phil >> | 32 | 1971 | R | 61 | 31 | 29 | 15 | 7 | 4.50 | .336 | 1.52 | 10.8 | 2.9 | 4.8 | 178.0 | 213 | 96 | 89 | 10 | 57 | 95 | 0 | 0 | 1 | 0 | 13 | 0 | 2 | 3.62 |