| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sam McDowell | CLE | 9.19 | 197009170_DET_CLE |
| Jim Perry | MIN | 4.22 | 197009170_ANA_MIN |
| Tommy John | CHA | 2.66 | 197009190_MIN_CHA |
| Dick Bosman | TEX | 2.33 | 197009170_BAL_TEX |
| Gaylord Perry | SFN | 2.2 | 197009190_SFN_SDN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Reberger | SFN | -5.02 | 197009180_SFN_SDN |
| Bill Stoneman | WAS | -2.63 | 197009181_CHN_WAS |
| Mike Kilkenny | DET | -1.78 | 197009180_NYA_DET |
| Lowell Palmer | PHI | -1.61 | 197009180_PHI_SLN |
| Clay Kirby | SDN | -1.33 | 197009190_SFN_SDN |
Based on accumulated WAA for this season up to 1970-09-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +007+ | 8.45 | Sam McDowell | 292.3 | CLE |
| +009+ | 7.86 | Tom Seaver | 281 | NYN |
| +012+ | 7.18 | Jim Palmer | 279.3 | BAL |
| +025+ | 5.44 | Jim Perry | 256.7 | MIN |
| +028+ | 5.31 | Clyde Wright | 236.7 | ANA |
| +032+ | 5.13 | Diego Segui | 158.7 | OAK |
| +033+ | 5.02 | Gaylord Perry | 307.7 | SFN |
| +035+ | 4.79 | Dick Bosman | 212.7 | TEX |
| +038+ | 4.75 | Bob Gibson | 277 | SLN |
| +041+ | 4.67 | Fritz Peterson | 234 | NYA |
| +047+ | 4.39 | Tom Hall | 139.7 | MIN |
| +049+ | 4.37 | Gary Nolan | 237.7 | CIN |
| +054+ | 4.05 | Tommy John | 253.3 | CHA |
| +057+ | 3.97 | Ray Culp | 233.3 | BOS |
| +061+ | 3.8 | Mel Stottlemyre | 254.7 | NYA |
| +062+ | 3.79 | Dave McNally | 279 | BAL |
| +063+ | 3.76 | Wayne Simpson | 176 | CIN |
| +072+ | 3.19 | Bob Johnson | 191 | KCA |
| +075+ | 3.07 | Ferguson Jenkins | 286.3 | CHN |
| +076+ | 3 | Ken Holtzman | 269.7 | CHN |
| +078+ | 2.9 | Danny Coombs | 182.3 | SDN |
| +079+ | 2.88 | Ron Klimkowski | 97.3 | NYA |
| +080+ | 2.87 | Stan Bahnsen | 225.7 | NYA |
| +082+ | 2.79 | Steve Hargan | 124.7 | CLE |
| +088+ | 2.7 | Eddie Fisher | 122.3 | ANA |
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