| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 11.64 | 196606100_LAN_SFN |
| Jim Bunning | PHI | 10.68 | 196606110_SLN_PHI |
| Jim Maloney | CIN | 5.67 | 196606100_CIN_NYN |
| Sam McDowell | CLE | 4.45 | 196606110_TEX_CLE |
| Bob Gibson | SLN | 4.44 | 196606110_SLN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Diego Segui | TEX | -2.31 | 196606090_TEX_BAL |
| Bob Buhl | PHI | -1.57 | 196606090_CIN_PHI |
| Jim Lonborg | BOS | -1.12 | 196606110_BOS_BAL |
| Turk Farrell | HOU | -0.63 | 196606100_CHN_HOU |
| Joey Jay | CIN | -0.62 | 196606090_CIN_PHI |
Based on accumulated WAA for this season up to 1966-06-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.07 | Sandy Koufax | 109.3 | LAN |
| +003+ | 4.38 | Jim Bunning | 113.7 | PHI |
| +004+ | 4.03 | Juan Marichal | 111 | SFN |
| +006+ | 3.55 | Bob Gibson | 118 | SLN |
| +007+ | 3.39 | Mike Cuellar | 62.3 | HOU |
| +013+ | 2.65 | Mel Stottlemyre | 100 | NYA |
| +014+ | 2.46 | Dick Ellsworth | 92 | CHN |
| +015+ | 2.43 | Al Jackson | 62 | SLN |
| +016+ | 2.42 | Claude Osteen | 99.7 | LAN |
| +017+ | 2.37 | Tommy John | 80.3 | CHA |
| +022+ | 2.19 | Dennis Ribant | 54.3 | NYN |
| +024+ | 2.12 | Sam McDowell | 74.7 | CLE |
| +026+ | 1.92 | Phil Ortega | 84.3 | TEX |
| +030+ | 1.88 | Pete Richert | 99.7 | TEX |
| +031+ | 1.88 | Jim Maloney | 73.7 | CIN |
| +037+ | 1.7 | Jim Kaat | 94 | MIN |
| +040+ | 1.62 | Clay Carroll | 47.3 | ATL |
| +046+ | 1.53 | Chris Short | 101.3 | PHI |
| +049+ | 1.46 | Ralph Terry | 42.3 | OAK |
| +054+ | 1.37 | Gary Bell | 78.7 | CLE |
| +057+ | 1.35 | Luis Tiant | 56.3 | CLE |
| +062+ | 1.29 | Gary Peters | 69 | CHA |
| +064+ | 1.27 | Whitey Ford | 40 | NYA |
| XXXXX | 1.19 | Joe Horlen | 67.7 | CHA |
| XXXXX | 1.18 | Jim O'Toole | 51.7 | CIN |
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