| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 6.57 | 196605280_NYN_LAN |
| Chris Short | PHI | 6.56 | 196605290_PHI_SFN |
| Jim Maloney | CIN | 5.91 | 196605270_CIN_SLN |
| Mel Stottlemyre | NYA | 4.42 | 196605270_CHA_NYA |
| Bob Veale | PIT | 2.6 | 196605270_PIT_HOU |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Art Mahaffey | SLN | -3.61 | 196605270_CIN_SLN |
| Jerry Stephenson | BOS | -2.67 | 196605290_BOS_TEX |
| Ernie Broglio | CHN | -2.25 | 196605270_ATL_CHN |
| Wade Blasingame | ATL | -1.84 | 196605270_ATL_CHN |
| Bill Monbouquette | DET | -1.29 | 196605270_ANA_DET |
Based on accumulated WAA for this season up to 1966-05-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.29 | Juan Marichal | 92 | SFN |
| +005+ | 3.01 | Sandy Koufax | 82.3 | LAN |
| +008+ | 2.46 | Mel Stottlemyre | 80 | NYA |
| +009+ | 2.44 | Jim Bunning | 79.7 | PHI |
| +011+ | 2.32 | Al Jackson | 42 | SLN |
| +012+ | 2.22 | Tommy John | 69.3 | CHA |
| +014+ | 2.16 | Mike Cuellar | 46.3 | HOU |
| +016+ | 2.03 | Chris Short | 82.7 | PHI |
| +018+ | 1.94 | Bob Gibson | 84.3 | SLN |
| +019+ | 1.89 | Claude Osteen | 81.3 | LAN |
| +025+ | 1.7 | Luis Tiant | 52.7 | CLE |
| +026+ | 1.69 | Jim Maloney | 50 | CIN |
| +030+ | 1.57 | Sam McDowell | 68.3 | CLE |
| +031+ | 1.51 | Pete Richert | 75.3 | TEX |
| +033+ | 1.46 | Clay Carroll | 31 | ATL |
| +037+ | 1.33 | John O'Donoghue | 24.3 | CLE |
| +038+ | 1.31 | Jim Kaat | 71.3 | MIN |
| XXXXX | 1.24 | Jim O'Toole | 41.3 | CIN |
| XXXXX | 1.24 | Dick Ellsworth | 67.7 | CHN |
| XXXXX | 1.12 | Whitey Ford | 40 | NYA |
| XXXXX | 1.03 | Gary Bell | 66.7 | CLE |
| XXXXX | 1 | Phil Ortega | 60.3 | TEX |
| XXXXX | 0.99 | Jose Santiago | 50 | BOS |
| XXXXX | 0.96 | Dave Giusti | 55.7 | HOU |
| XXXXX | 0.94 | Jim Grant | 69.3 | MIN |
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