| 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 |
| Gaylord Perry | SFN | 3.42 | 197105070_ATL_SFN |
| Larry Dierker | HOU | 3.26 | 197105060_HOU_WAS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Gary Peters | BOS | -2.72 | 197105060_BOS_CHA |
| Clay Kirby | SDN | -2.15 | 197105052_ATL_SDN |
| Don Wilson | HOU | -1.35 | 197105070_HOU_PHI |
| Jim Bunning | PHI | -1.19 | 197105070_HOU_PHI |
| Reggie Cleveland | SLN | -1.05 | 197105050_SLN_PHI |
Based on accumulated WAA for this season up to 1971-05-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.28 | Vida Blue | 61.7 | OAK |
| +005+ | 2.58 | Larry Dierker | 59 | HOU |
| +006+ | 2.44 | Al Downing | 47 | LAN |
| +009+ | 2.17 | Tom Seaver | 56.3 | NYN |
| +013+ | 1.78 | Juan Marichal | 55 | SFN |
| +015+ | 1.66 | Steve Carlton | 49.3 | SLN |
| +018+ | 1.61 | Dick Drago | 47.7 | KCA |
| +020+ | 1.57 | Tom Bradley | 45 | CHA |
| +023+ | 1.44 | Dock Ellis | 46 | PIT |
| +024+ | 1.38 | Sonny Siebert | 45.3 | BOS |
| +027+ | 1.32 | Ron Bryant | 29 | SFN |
| +028+ | 1.28 | Luke Walker | 44 | PIT |
| XXXXX | 1.22 | Marty Pattin | 56.3 | MIL |
| XXXXX | 1.15 | Jim Palmer | 50 | BAL |
| XXXXX | 1.14 | 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 | 0.98 | Steve Kline | 40 | NYA |
| XXXXX | 0.96 | Andy Messersmith | 51.3 | ANA |
| XXXXX | 0.93 | Bert Blyleven | 54.7 | MIN |
| XXXXX | 0.93 | Ray Lamb | 22.7 | CLE |
| XXXXX | 0.92 | Pat Dobson | 44.3 | BAL |
| XXXXX | 0.9 | Ferguson Jenkins | 57 | CHN |
| XXXXX | 0.89 | Chris Short | 43.3 | PHI |
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