| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 10.36 | 196606051_LAN_NYN |
| Jim Bunning | PHI | 9.99 | 196606070_CIN_PHI |
| Jim Maloney | CIN | 5.87 | 196606051_CHN_CIN |
| Bob Gibson | SLN | 5.38 | 196606070_SLN_PIT |
| Bob Veale | PIT | 3.47 | 196606050_HOU_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ernie Broglio | CHN | -2.34 | 196606052_CHN_CIN |
| Diego Segui | TEX | -2.29 | 196606051_TEX_CHA |
| Bill Monbouquette | DET | -1.77 | 196606051_DET_ANA |
| Ray Sadecki | SFN | -1.76 | 196606070_SFN_HOU |
| Denny Lemaster | ATL | -0.99 | 196606070_ATL_NYN |
Based on accumulated WAA for this season up to 1966-06-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.79 | Juan Marichal | 105 | SFN |
| +002+ | 4.5 | Sandy Koufax | 100.3 | LAN |
| +003+ | 4.19 | Jim Bunning | 106.7 | PHI |
| +011+ | 2.78 | Bob Gibson | 109 | SLN |
| +012+ | 2.68 | Mike Cuellar | 53.3 | HOU |
| +013+ | 2.44 | Mel Stottlemyre | 93 | NYA |
| +014+ | 2.31 | Tommy John | 80.3 | CHA |
| +015+ | 2.3 | Claude Osteen | 93.7 | LAN |
| +017+ | 2.26 | Pete Richert | 91.7 | TEX |
| +018+ | 2.15 | Chris Short | 93.7 | PHI |
| +021+ | 2.11 | Al Jackson | 53 | SLN |
| +022+ | 2.11 | Jim Maloney | 66.7 | CIN |
| +026+ | 2 | Steve Barber | 63.3 | BAL |
| +027+ | 1.93 | Dick Ellsworth | 83 | CHN |
| +034+ | 1.67 | Phil Ortega | 76.3 | TEX |
| +037+ | 1.63 | Jim Kaat | 85.7 | MIN |
| +039+ | 1.57 | Gary Peters | 62.3 | CHA |
| +040+ | 1.57 | John Buzhardt | 54 | CHA |
| +053+ | 1.33 | Clay Carroll | 41.3 | ATL |
| +054+ | 1.31 | Luis Tiant | 56.3 | CLE |
| +055+ | 1.28 | Dennis Ribant | 43 | NYN |
| XXXXX | 1.24 | Whitey Ford | 40 | NYA |
| XXXXX | 1.15 | Ralph Terry | 35.7 | OAK |
| XXXXX | 1.15 | Vern Law | 40.3 | PIT |
| XXXXX | 1.14 | Joe Horlen | 67.7 | CHA |
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