| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Seaver | NYN | 12.36 | 197109110_PHI_NYN |
| Dave Roberts | SDN | 10.31 | 197109100_LAN_SDN |
| Ferguson Jenkins | CHN | 3.23 | 197109100_SLN_CHN |
| Jim Palmer | BAL | 3.07 | 197109090_TEX_BAL |
| Don Sutton | LAN | 2.25 | 197109100_LAN_SDN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Gary Peters | BOS | -3.92 | 197109100_BOS_DET |
| Jerry Reuss | SLN | -3.91 | 197109110_SLN_CHN |
| Denny McLain | TEX | -1.48 | 197109090_TEX_BAL |
| Ernie McAnally | WAS | -0.75 | 197109110_PIT_WAS |
| Tom Murphy | ANA | -0.67 | 197109090_MIL_ANA |
Based on accumulated WAA for this season up to 1971-09-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 11.07 | Vida Blue | 287 | OAK |
| +003+ | 9.9 | Tom Seaver | 252.3 | NYN |
| +004+ | 9.69 | Wilbur Wood | 283 | CHA |
| +007+ | 8.93 | Dave Roberts | 240.3 | SDN |
| +017+ | 5.17 | Don Gullett | 197.7 | CIN |
| +023+ | 4.54 | Don Wilson | 234 | HOU |
| +024+ | 4.53 | Jim Palmer | 250.7 | BAL |
| +025+ | 4.51 | Don Sutton | 232 | LAN |
| +026+ | 4.44 | Al Downing | 236.3 | LAN |
| +028+ | 4.35 | Paul Splittorff | 135.7 | KCA |
| +031+ | 4.26 | Ferguson Jenkins | 289 | CHN |
| +037+ | 3.96 | Bill Parsons | 221.3 | MIL |
| +044+ | 3.66 | Mel Stottlemyre | 236 | NYA |
| +046+ | 3.64 | Sonny Siebert | 228.7 | BOS |
| +054+ | 3.38 | Mike Hedlund | 182 | KCA |
| +056+ | 3.35 | Pat Dobson | 251.7 | BAL |
| +061+ | 3.13 | Tom Bradley | 251.7 | CHA |
| +063+ | 3.09 | Mickey Lolich | 333 | DET |
| +064+ | 2.96 | Lew Krausse | 164 | MIL |
| +067+ | 2.85 | Bert Blyleven | 242.3 | MIN |
| +068+ | 2.84 | Juan Marichal | 241.3 | SFN |
| +069+ | 2.84 | Marty Pattin | 235.7 | MIL |
| +072+ | 2.76 | Dock Ellis | 204.3 | PIT |
| +073+ | 2.74 | Dick Drago | 209.7 | KCA |
| +075+ | 2.68 | Steve Kline | 203.3 | NYA |
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