| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Seaver | NYN | 9.1 | 197105010_NYN_HOU |
| Jim Palmer | BAL | 6.71 | 197104290_BAL_OAK |
| Dick Bosman | TEX | 5.55 | 197104290_CHA_TEX |
| Andy Messersmith | ANA | 3.56 | 197105010_DET_ANA |
| Bob Gibson | SLN | 3.13 | 197105010_WAS_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Murphy | ANA | -2.52 | 197104290_CLE_ANA |
| Steve Hargan | CLE | -2.52 | 197104300_CLE_OAK |
| Lew Krausse | MIL | -2.37 | 197105010_MIL_NYA |
| Clay Kirby | SDN | -2.11 | 197105010_SDN_PIT |
| Rich Robertson | SFN | -1.84 | 197105010_SFN_CIN |
Based on accumulated WAA for this season up to 1971-05-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 2.69 | Vida Blue | 52.7 | OAK |
| +005+ | 2.34 | Larry Dierker | 52 | HOU |
| +007+ | 2.01 | Tom Bradley | 39 | CHA |
| +009+ | 2.01 | Sonny Siebert | 39 | BOS |
| +011+ | 1.83 | Tom Seaver | 47.3 | NYN |
| +012+ | 1.8 | Al Downing | 38 | LAN |
| +014+ | 1.58 | Chris Short | 38 | PHI |
| +016+ | 1.46 | Juan Marichal | 46 | SFN |
| +017+ | 1.44 | Dick Drago | 39.3 | KCA |
| +023+ | 1.35 | Ron Bryant | 28.3 | SFN |
| XXXXX | 1.16 | Dock Ellis | 39 | PIT |
| XXXXX | 1.14 | Luke Walker | 36 | PIT |
| XXXXX | 1.14 | Steve Renko | 38 | WAS |
| XXXXX | 1.13 | Ferguson Jenkins | 48 | CHN |
| XXXXX | 1.11 | Andy Messersmith | 44.3 | ANA |
| XXXXX | 1.05 | Mike Hedlund | 34.3 | KCA |
| XXXXX | 1.03 | Bob Johnson | 32 | PIT |
| XXXXX | 1.01 | Steve Carlton | 40.3 | SLN |
| XXXXX | 0.98 | Steve Kline | 34 | NYA |
| XXXXX | 0.97 | Jerry Koosman | 28.3 | NYN |
| XXXXX | 0.93 | Ray Lamb | 16.7 | CLE |
| XXXXX | 0.85 | Diego Segui | 42.7 | OAK |
| XXXXX | 0.81 | Marty Pattin | 42.3 | MIL |
| XXXXX | 0.74 | Jim Palmer | 41 | BAL |
| XXXXX | 0.74 | Bert Blyleven | 38 | MIN |
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