| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Palmer | BAL | 8.65 | 197009260_BAL_CLE |
| Tom Seaver | NYN | 7.39 | 197009260_NYN_PIT |
| Sam McDowell | CLE | 6.89 | 197009270_BAL_CLE |
| Jim Perry | MIN | 4.56 | 197009250_MIN_KCA |
| Clyde Wright | ANA | 4.39 | 197009250_OAK_ANA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Reberger | SFN | -4.32 | 197009250_SDN_SFN |
| Jerry Janeski | CHA | -2.69 | 197009252_MIL_CHA |
| Lew Krausse | MIL | -2.68 | 197009260_MIL_CHA |
| Bill Stoneman | WAS | -1.67 | 197009260_SLN_WAS |
| Clay Kirby | SDN | -1.22 | 197009260_SDN_SFN |
Based on accumulated WAA for this season up to 1970-09-27.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +009+ | 7.66 | Jim Palmer | 297 | BAL |
| +012+ | 7.19 | Tom Seaver | 290.7 | NYN |
| +014+ | 7.15 | Sam McDowell | 305.3 | CLE |
| +021+ | 6.51 | Jim Perry | 273.7 | MIN |
| +027+ | 5.77 | Clyde Wright | 251.7 | ANA |
| +028+ | 5.58 | Fritz Peterson | 252 | NYA |
| +031+ | 5.24 | Gaylord Perry | 320.7 | SFN |
| +032+ | 5.21 | Bob Gibson | 286 | SLN |
| +034+ | 5.19 | Diego Segui | 160 | OAK |
| +035+ | 5.09 | Ray Culp | 251.3 | BOS |
| +041+ | 4.76 | Mel Stottlemyre | 271 | NYA |
| +045+ | 4.59 | Dick Bosman | 224.7 | TEX |
| +049+ | 4.48 | Tommy John | 262.3 | CHA |
| +058+ | 4.22 | Tom Hall | 147.3 | MIN |
| +057+ | 4.22 | Gary Nolan | 250.7 | CIN |
| +063+ | 4.09 | Bob Johnson | 206 | KCA |
| +065+ | 3.83 | Dave McNally | 287 | BAL |
| +067+ | 3.69 | Wayne Simpson | 176 | CIN |
| +068+ | 3.59 | Ken Holtzman | 278.7 | CHN |
| +071+ | 3.4 | Ferguson Jenkins | 304 | CHN |
| +080+ | 3.24 | Dock Ellis | 202.3 | PIT |
| +083+ | 3.12 | Luke Walker | 157 | PIT |
| +084+ | 3.11 | Steve Hargan | 133.7 | CLE |
| +085+ | 3.04 | Jerry Koosman | 203 | NYN |
| +086+ | 3.02 | Don Gullett | 76.7 | CIN |
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