| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Palmer | BAL | 6.33 | 197105140_BAL_BOS |
| Jerry Koosman | NYN | 4.51 | 197105140_NYN_PIT |
| Bob Gibson | SLN | 3.72 | 197105140_SLN_HOU |
| Fritz Peterson | NYA | 3.35 | 197105130_NYA_MIL |
| Andy Messersmith | ANA | 3.14 | 197105150_MIL_ANA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Murphy | ANA | -2.78 | 197105140_MIL_ANA |
| Lew Krausse | MIL | -1.36 | 197105150_MIL_ANA |
| Alan Foster | CLE | -1.33 | 197105150_CLE_NYA |
| Jerry Janeski | TEX | -1.18 | 197105150_DET_TEX |
| Steve Arlin | SDN | -1.01 | 197105140_SDN_CHN |
Based on accumulated WAA for this season up to 1971-05-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.78 | Vida Blue | 77.7 | OAK |
| +003+ | 3.07 | Tom Bradley | 64 | CHA |
| +004+ | 2.79 | Juan Marichal | 73 | SFN |
| +009+ | 2.49 | Sonny Siebert | 61.3 | BOS |
| +014+ | 1.95 | Bill Parsons | 54.3 | MIL |
| +015+ | 1.93 | Tom Seaver | 63.3 | NYN |
| +016+ | 1.86 | Larry Dierker | 64.7 | HOU |
| +017+ | 1.84 | Ray Lamb | 36.7 | CLE |
| +018+ | 1.82 | Steve Kline | 59 | NYA |
| +019+ | 1.8 | Al Downing | 59.3 | LAN |
| +022+ | 1.66 | Bert Blyleven | 63.7 | MIN |
| +023+ | 1.62 | Dock Ellis | 53 | PIT |
| +024+ | 1.61 | Bruce DalCanton | 52.3 | KCA |
| +028+ | 1.54 | Ferguson Jenkins | 75 | CHN |
| +030+ | 1.53 | Jim Palmer | 65 | BAL |
| +033+ | 1.46 | Luke Walker | 51 | PIT |
| +035+ | 1.43 | Dick Drago | 52.7 | KCA |
| +036+ | 1.39 | Claude Osteen | 64.7 | LAN |
| +038+ | 1.33 | Ron Bryant | 45.3 | SFN |
| +039+ | 1.3 | Jerry Koosman | 49.7 | NYN |
| +042+ | 1.26 | Marty Pattin | 64.3 | MIL |
| XXXXX | 1.12 | Andy Messersmith | 65.7 | ANA |
| XXXXX | 1.11 | Nolan Ryan | 25.3 | NYN |
| XXXXX | 1.01 | Pat Dobson | 53 | BAL |
| XXXXX | 0.98 | Lew Krausse | 44.7 | MIL |
_