| Starter | Tm | Tier | Game |
|---|---|---|---|
| Wilbur Wood | CHA | 13.27 | 197109190_ANA_CHA |
| Tom Seaver | NYN | 12.7 | 197109210_NYN_CHN |
| Dave Roberts | SDN | 10.29 | 197109190_SDN_SFN |
| Don Sutton | LAN | 2.66 | 197109192_ATL_LAN |
| Ferguson Jenkins | CHN | 2.31 | 197109190_CHN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jerry Reuss | SLN | -4.39 | 197109210_PIT_SLN |
| Carl Morton | WAS | -3.82 | 197109211_PHI_WAS |
| Jim Perry | MIN | -3.36 | 197109210_MIL_MIN |
| Ken Reynolds | PHI | -2.86 | 197109212_PHI_WAS |
| Steve Dunning | CLE | -2.41 | 197109190_CLE_NYA |
Based on accumulated WAA for this season up to 1971-09-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 10.68 | Wilbur Wood | 310 | CHA |
| +004+ | 10.66 | Vida Blue | 300 | OAK |
| +005+ | 10.31 | Tom Seaver | 268.3 | NYN |
| +007+ | 9.39 | Dave Roberts | 257.3 | SDN |
| +016+ | 5.62 | Don Wilson | 252.3 | HOU |
| +017+ | 5.61 | Don Sutton | 250 | LAN |
| +022+ | 4.93 | Al Downing | 252 | LAN |
| +023+ | 4.89 | Ferguson Jenkins | 307 | CHN |
| +026+ | 4.81 | Mel Stottlemyre | 254 | NYA |
| +030+ | 4.47 | Don Gullett | 212 | CIN |
| +040+ | 4.04 | Jim Palmer | 264 | BAL |
| +043+ | 3.97 | Mickey Lolich | 351 | DET |
| +046+ | 3.78 | Mike Hedlund | 191 | KCA |
| +049+ | 3.64 | Tug McGraw | 105 | NYN |
| +052+ | 3.54 | Bert Blyleven | 260.3 | MIN |
| +060+ | 3.43 | Sonny Siebert | 235.3 | BOS |
| +061+ | 3.42 | Steve Blass | 232 | PIT |
| +062+ | 3.41 | Paul Splittorff | 140.7 | KCA |
| +063+ | 3.35 | Gaylord Perry | 262 | SFN |
| +065+ | 3.28 | Dick Drago | 233.3 | KCA |
| +064+ | 3.28 | Rick Wise | 256.3 | PHI |
| +066+ | 3.21 | Steve Kline | 221.3 | NYA |
| +072+ | 3.02 | Tom Bradley | 267.3 | CHA |
| +073+ | 2.98 | Dave McNally | 217.3 | BAL |
| +074+ | 2.96 | Pat Dobson | 271.3 | BAL |
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