| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Bunning | PHI | -2.74 | 197105170_PHI_CIN |
| Jim Merritt | CIN | -2.12 | 197105170_PHI_CIN |
| Clay Kirby | SDN | -1.69 | 197105162_SDN_CHN |
| Lew Krausse | MIL | -1.36 | 197105150_MIL_ANA |
| Alan Foster | CLE | -1.33 | 197105150_CLE_NYA |
Based on accumulated WAA for this season up to 1971-05-17.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.85 | Vida Blue | 77.7 | OAK |
| +003+ | 3.1 | Tom Bradley | 69 | CHA |
| +004+ | 2.84 | Juan Marichal | 73 | SFN |
| +007+ | 2.53 | Sonny Siebert | 61.3 | BOS |
| +011+ | 2.34 | Bert Blyleven | 71.7 | MIN |
| +015+ | 2.08 | Tom Seaver | 73 | NYN |
| +016+ | 1.99 | Bill Parsons | 54.3 | MIL |
| +017+ | 1.92 | Dock Ellis | 61.7 | PIT |
| +020+ | 1.86 | Steve Kline | 59 | NYA |
| +019+ | 1.86 | Ray Lamb | 36.7 | CLE |
| +021+ | 1.84 | Al Downing | 59.3 | LAN |
| +022+ | 1.75 | Larry Dierker | 70.7 | HOU |
| +024+ | 1.65 | Bruce DalCanton | 52.3 | KCA |
| +027+ | 1.59 | Jim Palmer | 65 | BAL |
| +028+ | 1.57 | Ferguson Jenkins | 75 | CHN |
| +030+ | 1.47 | Dick Drago | 55.3 | KCA |
| +032+ | 1.45 | Nolan Ryan | 32.3 | NYN |
| +034+ | 1.36 | Ron Bryant | 45.3 | SFN |
| +036+ | 1.36 | Dave Roberts | 53 | SDN |
| +039+ | 1.32 | Jerry Koosman | 49.7 | NYN |
| +040+ | 1.31 | Marty Pattin | 64.3 | MIL |
| XXXXX | 1.17 | Andy Messersmith | 65.7 | ANA |
| XXXXX | 1.01 | Lew Krausse | 44.7 | MIL |
| XXXXX | 0.97 | Gary Gentry | 53.3 | NYN |
| XXXXX | 0.94 | Dave McNally | 70 | BAL |
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