| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Palmer | BAL | 6.71 | 197104290_BAL_OAK |
| Gaylord Perry | SFN | 5.65 | 197104270_SFN_ATL |
| Mel Stottlemyre | NYA | 5.6 | 197104270_CHA_NYA |
| Dick Bosman | TEX | 5.55 | 197104290_CHA_TEX |
| Jerry Koosman | NYN | 5.31 | 197104270_NYN_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Murphy | ANA | -2.52 | 197104290_CLE_ANA |
| Alan Foster | CLE | -2.28 | 197104290_CLE_ANA |
| Steve Arlin | SDN | -2.11 | 197104270_SDN_CIN |
| Don Wilson | HOU | -1.47 | 197104280_PHI_HOU |
| Jim Bunning | PHI | -1.42 | 197104270_PHI_HOU |
Based on accumulated WAA for this season up to 1971-04-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 2.22 | Vida Blue | 43.7 | OAK |
| +005+ | 2.03 | Sonny Siebert | 39 | BOS |
| +004+ | 2.03 | Tom Bradley | 39 | CHA |
| +007+ | 1.92 | Larry Dierker | 43 | HOU |
| +008+ | 1.89 | Tom Seaver | 39.3 | NYN |
| +009+ | 1.81 | Al Downing | 38 | LAN |
| +012+ | 1.63 | Juan Marichal | 40 | SFN |
| +016+ | 1.47 | Dick Drago | 39.3 | KCA |
| +019+ | 1.41 | Rudy May | 26.3 | ANA |
| +023+ | 1.31 | Bob Johnson | 27 | PIT |
| +024+ | 1.27 | Ferguson Jenkins | 39 | CHN |
| XXXXX | 1.22 | Mike Hedlund | 28.3 | KCA |
| XXXXX | 1.22 | Dock Ellis | 39 | PIT |
| XXXXX | 1.2 | Ron Bryant | 26.3 | SFN |
| XXXXX | 1.19 | Luke Walker | 36 | PIT |
| XXXXX | 1.15 | Steve Renko | 31 | WAS |
| XXXXX | 1.13 | Steve Carlton | 40.3 | SLN |
| XXXXX | 1.01 | Jerry Koosman | 28.3 | NYN |
| XXXXX | 0.98 | Dave McNally | 44 | BAL |
| XXXXX | 0.93 | Ray Lamb | 16.7 | CLE |
| XXXXX | 0.87 | Pat Dobson | 29.3 | BAL |
| XXXXX | 0.87 | Chris Short | 29 | PHI |
| XXXXX | 0.81 | Marty Pattin | 42.3 | MIL |
| XXXXX | 0.76 | Bert Blyleven | 38 | MIN |
| XXXXX | 0.74 | Jim Palmer | 41 | BAL |
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