| Starter | Tm | Tier | Game |
|---|---|---|---|
| Wilbur Wood | CHA | 13.88 | 197109290_MIL_CHA |
| Don Wilson | HOU | 3.58 | 197109280_HOU_LAN |
| Al Downing | LAN | 3.21 | 197109290_HOU_LAN |
| Bert Blyleven | MIN | 1.68 | 197109290_ANA_MIN |
| Gaylord Perry | SFN | 1.49 | 197109280_SFN_SDN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Steve Hargan | CLE | -5.49 | 197109280_DET_CLE |
| Gary Peters | BOS | -2.38 | 197109282_BOS_BAL |
| Bill Singer | LAN | -1.76 | 197109280_HOU_LAN |
| Ernie McAnally | WAS | -0.4 | 197109280_CHN_WAS |
| Al Fitzmorris | KCA | -0.36 | 197109290_KCA_OAK |
Based on accumulated WAA for this season up to 1971-09-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.14 | Wilbur Wood | 334 | CHA |
| +003+ | 11.56 | Vida Blue | 312 | OAK |
| +005+ | 10.67 | Tom Seaver | 277.3 | NYN |
| +007+ | 9.01 | Dave Roberts | 266.3 | SDN |
| +015+ | 6.07 | Don Wilson | 268.3 | HOU |
| +020+ | 5.34 | Ferguson Jenkins | 316 | CHN |
| +021+ | 5.23 | Don Sutton | 256.3 | LAN |
| +022+ | 5.19 | Jim Palmer | 282 | BAL |
| +027+ | 4.88 | Al Downing | 262.3 | LAN |
| +031+ | 4.55 | Gaylord Perry | 280 | SFN |
| +034+ | 4.53 | Bert Blyleven | 278.3 | MIN |
| +037+ | 4.47 | Don Gullett | 217.7 | CIN |
| +038+ | 4.46 | Mickey Lolich | 376 | DET |
| +044+ | 4.13 | Clay Kirby | 268.3 | SDN |
| +048+ | 4.06 | Tug McGraw | 111 | NYN |
| +050+ | 3.95 | Mel Stottlemyre | 269.7 | NYA |
| +052+ | 3.89 | Ken Forsch | 188.3 | HOU |
| +053+ | 3.88 | Mike Hedlund | 205.7 | KCA |
| +055+ | 3.74 | Pat Dobson | 282.3 | BAL |
| +062+ | 3.48 | Rick Wise | 272.3 | PHI |
| +066+ | 3.4 | Tom Bradley | 285.7 | CHA |
| +068+ | 3.33 | Steve Blass | 240 | PIT |
| +072+ | 3.04 | Dick Drago | 241.3 | KCA |
| +071+ | 3.04 | Dave McNally | 224.3 | BAL |
| +082+ | 2.84 | Jim Hunter | 273.7 | OAK |
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