| Starter | Tm | Tier | Game |
|---|---|---|---|
| Vida Blue | OAK | 13.46 | 197109220_CHA_OAK |
| Tom Seaver | NYN | 12.7 | 197109210_NYN_CHN |
| Jim Palmer | BAL | 2.37 | 197109220_BAL_NYA |
| Don Gullett | CIN | 1.75 | 197109210_LAN_CIN |
| Mike Hedlund | KCA | 1.53 | 197109220_KCA_ANA |
| 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 |
| Jim Lonborg | BOS | -1.81 | 197109210_DET_BOS |
Based on accumulated WAA for this season up to 1971-09-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 11.03 | Vida Blue | 305 | OAK |
| +004+ | 10.65 | Wilbur Wood | 310 | CHA |
| +005+ | 10.3 | Tom Seaver | 268.3 | NYN |
| +007+ | 9.36 | Dave Roberts | 257.3 | SDN |
| +016+ | 5.6 | Don Sutton | 250 | LAN |
| +017+ | 5.6 | Don Wilson | 252.3 | HOU |
| +023+ | 4.92 | Al Downing | 252 | LAN |
| +025+ | 4.85 | Ferguson Jenkins | 307 | CHN |
| +026+ | 4.78 | Mel Stottlemyre | 254 | NYA |
| +030+ | 4.54 | Jim Palmer | 273 | BAL |
| +031+ | 4.45 | Don Gullett | 212 | CIN |
| +042+ | 3.97 | Mickey Lolich | 359 | DET |
| +048+ | 3.72 | Tom Bradley | 276.3 | CHA |
| +050+ | 3.67 | Mike Hedlund | 197.7 | KCA |
| +052+ | 3.64 | Tug McGraw | 105 | NYN |
| +058+ | 3.51 | Bert Blyleven | 260.3 | MIN |
| +062+ | 3.41 | Sonny Siebert | 235.3 | BOS |
| +061+ | 3.41 | Rick Wise | 263.3 | PHI |
| +063+ | 3.4 | Steve Blass | 232 | PIT |
| +064+ | 3.39 | Paul Splittorff | 140.7 | KCA |
| +065+ | 3.32 | Gaylord Perry | 262 | SFN |
| +066+ | 3.25 | Dick Drago | 233.3 | KCA |
| +072+ | 2.95 | Dave McNally | 217.3 | BAL |
| +073+ | 2.93 | Pat Dobson | 271.3 | BAL |
| +074+ | 2.91 | Lew Krausse | 178 | MIL |
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