| Starter | Tm | Tier | Game |
|---|---|---|---|
| Juan Marichal | SFN | 9.9 | 196606290_SFN_SLN |
| Jim Bunning | PHI | 9.82 | 196606280_PHI_NYN |
| Bob Gibson | SLN | 9.25 | 196606270_SFN_SLN |
| Mel Stottlemyre | NYA | 4.6 | 196606290_NYA_BOS |
| Bob Veale | PIT | 4.06 | 196606280_HOU_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sammy Ellis | CIN | -1.7 | 196606280_LAN_CIN |
| Earl Wilson | DET | -1.54 | 196606280_DET_ANA |
| Camilo Pascual | MIN | -1.37 | 196606280_CLE_MIN |
| Tony Cloninger | ATL | -0.7 | 196606290_CHN_ATL |
| Bob Buhl | PHI | -0.64 | 196606290_PHI_NYN |
Based on accumulated WAA for this season up to 1966-06-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.56 | Sandy Koufax | 144.3 | LAN |
| +002+ | 5.98 | Bob Gibson | 152 | SLN |
| +004+ | 5.43 | Jim Bunning | 142.7 | PHI |
| +005+ | 5.36 | Juan Marichal | 155 | SFN |
| +011+ | 3.58 | Mike Cuellar | 83.3 | HOU |
| +013+ | 3.55 | Claude Osteen | 128 | LAN |
| +019+ | 3 | Al Jackson | 95.3 | SLN |
| +021+ | 2.75 | Steve Barber | 97.3 | BAL |
| +023+ | 2.68 | Dennis Ribant | 76.7 | NYN |
| +026+ | 2.51 | Bob Veale | 129.7 | PIT |
| +029+ | 2.5 | Jim Kaat | 121 | MIN |
| +030+ | 2.47 | Joe Horlen | 91 | CHA |
| +031+ | 2.45 | Mel Stottlemyre | 132.7 | NYA |
| +034+ | 2.4 | Pete Richert | 136.3 | TEX |
| +035+ | 2.36 | Gary Bell | 119.3 | CLE |
| +041+ | 2.19 | Tommy John | 100.7 | CHA |
| +045+ | 2.12 | Gaylord Perry | 87.7 | SFN |
| +048+ | 1.94 | Sam McDowell | 85 | CLE |
| +053+ | 1.8 | Jim Maloney | 102 | CIN |
| +057+ | 1.68 | Denny McLain | 126 | DET |
| +058+ | 1.66 | Minnie Rojas | 37 | ANA |
| +061+ | 1.64 | Clay Carroll | 67 | ATL |
| +073+ | 1.34 | Whitey Ford | 42 | NYA |
| +075+ | 1.31 | Gary Peters | 89.7 | CHA |
| +079+ | 1.28 | Juan Pizarro | 50 | CHA |
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