| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 7.92 | 196605050_LAN_SFN |
| Sam McDowell | CLE | 7.8 | 196605060_CLE_BAL |
| Chris Short | PHI | 7.49 | 196605040_PHI_ATL |
| Mel Stottlemyre | NYA | 4.91 | 196605040_CLE_NYA |
| Bob Veale | PIT | 3.67 | 196605050_PIT_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Earl Wilson | BOS | -7.02 | 196605040_BOS_DET |
| Bob Buhl | PHI | -2.75 | 196605060_PIT_PHI |
| Denny Lemaster | ATL | -2.75 | 196605060_ATL_HOU |
| John O'Donoghue | CLE | -1.96 | 196605050_CLE_NYA |
| Bill Monbouquette | DET | -1.85 | 196605040_BOS_DET |
Based on accumulated WAA for this season up to 1966-05-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 2.76 | Juan Marichal | 45 | SFN |
| +002+ | 2.02 | Sam McDowell | 52.7 | CLE |
| +003+ | 1.92 | Luis Tiant | 27.3 | CLE |
| +007+ | 1.73 | Mike Cuellar | 28.7 | HOU |
| +008+ | 1.67 | Mel Stottlemyre | 38 | NYA |
| +012+ | 1.53 | Chris Short | 45.7 | PHI |
| +014+ | 1.43 | Claude Osteen | 48.7 | LAN |
| +019+ | 1.27 | Jim Grant | 32.3 | MIN |
| +020+ | 1.25 | Gary Peters | 29.3 | CHA |
| XXXXX | 1.22 | Jim Bunning | 38.7 | PHI |
| XXXXX | 1.21 | Denny McLain | 40.7 | DET |
| XXXXX | 1.08 | Sonny Siebert | 27.3 | CLE |
| XXXXX | 1.05 | Jim Maloney | 18.7 | CIN |
| XXXXX | 0.97 | Ken Johnson | 33 | ATL |
| XXXXX | 0.96 | Whitey Ford | 37 | NYA |
| XXXXX | 0.95 | Camilo Pascual | 28.3 | MIN |
| XXXXX | 0.93 | Clay Carroll | 24 | ATL |
| XXXXX | 0.92 | Rollie Sheldon | 27.3 | OAK |
| XXXXX | 0.88 | Bob Gibson | 42 | SLN |
| XXXXX | 0.82 | Rob Gardner | 24.3 | NYN |
| XXXXX | 0.81 | Joe Gibbon | 16.3 | SFN |
| XXXXX | 0.78 | Barry Latman | 30 | HOU |
| XXXXX | 0.76 | Gaylord Perry | 32.3 | SFN |
| XXXXX | 0.76 | Jack Hamilton | 29 | NYN |
| XXXXX | 0.75 | Denny Lemaster | 30 | ATL |
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