| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sam McDowell | CLE | 6.89 | 197009270_BAL_CLE |
| Jim Perry | MIN | 5.6 | 197009290_KCA_MIN |
| Clyde Wright | ANA | 4.33 | 197009290_CHA_ANA |
| Bob Gibson | SLN | 3.48 | 197009290_PIT_SLN |
| Gaylord Perry | SFN | 3.25 | 197009270_SDN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Reberger | SFN | -4.98 | 197009290_SFN_HOU |
| Mike McQueen | ATL | -2.07 | 197009290_ATL_CIN |
| Joe Horlen | CHA | -1.41 | 197009270_MIL_CHA |
| Steve Renko | WAS | -0.94 | 197009290_WAS_PHI |
| Tom Murphy | ANA | -0.77 | 197009280_CHA_ANA |
Based on accumulated WAA for this season up to 1970-09-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +010+ | 7.58 | Jim Palmer | 297 | BAL |
| +015+ | 7.15 | Tom Seaver | 290.7 | NYN |
| +016+ | 7.12 | Sam McDowell | 305.3 | CLE |
| +023+ | 6.35 | Clyde Wright | 260.7 | ANA |
| +026+ | 6.05 | Jim Perry | 278.7 | MIN |
| +029+ | 5.57 | Fritz Peterson | 252 | NYA |
| +031+ | 5.25 | Gaylord Perry | 320.7 | SFN |
| +032+ | 5.18 | Diego Segui | 160 | OAK |
| +035+ | 5.07 | Ray Culp | 251.3 | BOS |
| +038+ | 4.9 | Tom Hall | 155.3 | MIN |
| +040+ | 4.86 | Bob Gibson | 294 | SLN |
| +042+ | 4.75 | Mel Stottlemyre | 271 | NYA |
| +049+ | 4.55 | Dick Bosman | 224.7 | TEX |
| +051+ | 4.49 | Tommy John | 262.3 | CHA |
| +059+ | 4.19 | Gary Nolan | 250.7 | CIN |
| +062+ | 4.05 | Bob Johnson | 206 | KCA |
| +064+ | 3.76 | Ken Holtzman | 287.7 | CHN |
| +065+ | 3.75 | Dave McNally | 287 | BAL |
| +068+ | 3.68 | Wayne Simpson | 176 | CIN |
| +069+ | 3.61 | Jerry Koosman | 212 | NYN |
| +072+ | 3.49 | Steve Hargan | 142.7 | CLE |
| +073+ | 3.44 | Luke Walker | 163 | PIT |
| +074+ | 3.37 | Ferguson Jenkins | 304 | CHN |
| +081+ | 3.22 | Dock Ellis | 202.3 | PIT |
| +086+ | 3.01 | Don Gullett | 76.7 | CIN |
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