| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Palmer | BAL | 6.71 | 197104290_BAL_OAK |
| Dick Bosman | TEX | 5.55 | 197104290_CHA_TEX |
| Sam McDowell | CLE | 4.35 | 197104280_CLE_ANA |
| Sonny Siebert | BOS | 1.45 | 197104280_MIL_BOS |
| Juan Marichal | SFN | 1.42 | 197104300_SFN_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Steve Hargan | CLE | -2.52 | 197104300_CLE_OAK |
| Tom Murphy | ANA | -2.52 | 197104290_CLE_ANA |
| Don Wilson | HOU | -1.47 | 197104280_PHI_HOU |
| Mike Torrez | SLN | -1.32 | 197104280_NYN_SLN |
| Bill Stoneman | WAS | -1.32 | 197104300_WAS_SLN |
Based on accumulated WAA for this season up to 1971-04-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 2.72 | Vida Blue | 52.7 | OAK |
| +005+ | 2.03 | Tom Bradley | 39 | CHA |
| +006+ | 2.03 | Sonny Siebert | 39 | BOS |
| +009+ | 1.87 | Larry Dierker | 43 | HOU |
| +011+ | 1.83 | Tom Seaver | 39.3 | NYN |
| +012+ | 1.82 | Al Downing | 38 | LAN |
| +014+ | 1.59 | Chris Short | 38 | PHI |
| +016+ | 1.46 | Dick Drago | 39.3 | KCA |
| +017+ | 1.46 | Juan Marichal | 46 | SFN |
| +024+ | 1.27 | Ferguson Jenkins | 39 | CHN |
| XXXXX | 1.21 | Dock Ellis | 39 | PIT |
| XXXXX | 1.2 | Ron Bryant | 26.3 | SFN |
| XXXXX | 1.18 | Luke Walker | 36 | PIT |
| XXXXX | 1.16 | Steve Renko | 31 | WAS |
| XXXXX | 1.13 | Steve Carlton | 40.3 | SLN |
| XXXXX | 1.07 | Bob Johnson | 32 | PIT |
| XXXXX | 1.06 | Mike Hedlund | 34.3 | KCA |
| XXXXX | 0.99 | Steve Kline | 34 | NYA |
| XXXXX | 0.98 | Dave McNally | 44 | BAL |
| XXXXX | 0.97 | Jerry Koosman | 28.3 | NYN |
| XXXXX | 0.94 | Ray Lamb | 16.7 | CLE |
| XXXXX | 0.83 | Marty Pattin | 42.3 | MIL |
| XXXXX | 0.76 | Bert Blyleven | 38 | MIN |
| XXXXX | 0.74 | Jim Palmer | 41 | BAL |
| XXXXX | 0.64 | Andy Messersmith | 35.3 | ANA |
_