| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Seaver | NYN | 9.6 | 197105120_HOU_NYN |
| Jim Palmer | BAL | 6.33 | 197105140_BAL_BOS |
| Bob Gibson | SLN | 3.72 | 197105140_SLN_HOU |
| Mel Stottlemyre | NYA | 3.68 | 197105120_NYA_MIL |
| Dick Bosman | TEX | 3.53 | 197105121_TEX_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Murphy | ANA | -2.78 | 197105140_MIL_ANA |
| Jim Bunning | PHI | -1.51 | 197105120_CHN_PHI |
| Steve Arlin | SDN | -1.01 | 197105140_SDN_CHN |
| Don Wilson | HOU | -0.84 | 197105120_HOU_NYN |
| Don Sutton | LAN | -0.79 | 197105120_ATL_LAN |
Based on accumulated WAA for this season up to 1971-05-14.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.74 | Vida Blue | 77.7 | OAK |
| +003+ | 3.05 | Tom Bradley | 64 | CHA |
| +008+ | 2.48 | Sonny Siebert | 61.3 | BOS |
| +011+ | 2.09 | Juan Marichal | 64 | SFN |
| +013+ | 1.92 | Bill Parsons | 54.3 | MIL |
| +014+ | 1.92 | Tom Seaver | 63.3 | NYN |
| +017+ | 1.85 | Larry Dierker | 64.7 | HOU |
| +018+ | 1.83 | Ray Lamb | 36.7 | CLE |
| +019+ | 1.8 | Steve Kline | 59 | NYA |
| +020+ | 1.78 | Al Downing | 59.3 | LAN |
| +024+ | 1.65 | Ferguson Jenkins | 66 | CHN |
| +025+ | 1.65 | Bert Blyleven | 63.7 | MIN |
| +026+ | 1.61 | Dock Ellis | 53 | PIT |
| +029+ | 1.52 | Jim Palmer | 65 | BAL |
| +030+ | 1.47 | Bruce DalCanton | 45.3 | KCA |
| +032+ | 1.45 | Luke Walker | 51 | PIT |
| +034+ | 1.42 | Dick Drago | 52.7 | KCA |
| +035+ | 1.36 | Claude Osteen | 64.7 | LAN |
| +039+ | 1.31 | Ron Bryant | 45.3 | SFN |
| +040+ | 1.29 | Jerry Koosman | 49.7 | NYN |
| XXXXX | 1.23 | Marty Pattin | 64.3 | MIL |
| XXXXX | 1.1 | Nolan Ryan | 25.3 | NYN |
| XXXXX | 1 | Pat Dobson | 53 | BAL |
| XXXXX | 0.89 | Dave McNally | 65 | BAL |
| XXXXX | 0.87 | Chris Short | 50.7 | PHI |
_