| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Seaver | NYN | 8.42 | 197105070_SLN_NYN |
| Andy Messersmith | ANA | 4.39 | 197105061_ANA_BAL |
| Mel Stottlemyre | NYA | 4.24 | 197105060_NYA_MIN |
| Dick Bosman | TEX | 4.24 | 197105080_TEX_MIN |
| Gaylord Perry | SFN | 3.42 | 197105070_ATL_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Gary Peters | BOS | -2.72 | 197105060_BOS_CHA |
| Steve Arlin | SDN | -1.68 | 197105081_CIN_SDN |
| Lew Krausse | MIL | -1.61 | 197105080_BOS_MIL |
| Don Wilson | HOU | -1.35 | 197105070_HOU_PHI |
| Jim Bunning | PHI | -1.19 | 197105070_HOU_PHI |
Based on accumulated WAA for this season up to 1971-05-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 3.28 | Vida Blue | 61.7 | OAK |
| +005+ | 2.58 | Larry Dierker | 59 | HOU |
| +008+ | 2.3 | Tom Bradley | 55 | CHA |
| +010+ | 2.17 | Tom Seaver | 56.3 | NYN |
| +012+ | 1.91 | Al Downing | 53.7 | LAN |
| +017+ | 1.78 | Juan Marichal | 55 | SFN |
| +019+ | 1.71 | Sonny Siebert | 52.3 | BOS |
| +020+ | 1.66 | Steve Carlton | 49.3 | SLN |
| +022+ | 1.62 | Dick Drago | 47.7 | KCA |
| +024+ | 1.58 | Steve Kline | 51 | NYA |
| +025+ | 1.44 | Dock Ellis | 46 | PIT |
| +029+ | 1.32 | Ray Lamb | 27.7 | CLE |
| +030+ | 1.28 | Luke Walker | 44 | PIT |
| XXXXX | 1.22 | Marty Pattin | 56.3 | MIL |
| XXXXX | 1.15 | Jim Palmer | 50 | BAL |
| XXXXX | 1.13 | Jerry Koosman | 34.3 | NYN |
| XXXXX | 1.11 | Bill Parsons | 38.7 | MIL |
| XXXXX | 1.08 | Bob Johnson | 38.7 | PIT |
| XXXXX | 1.07 | Dave McNally | 57 | BAL |
| XXXXX | 1.02 | Ron Bryant | 36.3 | SFN |
| XXXXX | 0.96 | Andy Messersmith | 51.3 | ANA |
| XXXXX | 0.93 | Bert Blyleven | 54.7 | MIN |
| XXXXX | 0.92 | Pat Dobson | 44.3 | BAL |
| XXXXX | 0.89 | Chris Short | 43.3 | PHI |
| XXXXX | 0.89 | Ferguson Jenkins | 57 | CHN |
_