| Starter | Tm | Tier | Game |
|---|---|---|---|
| Juan Marichal | SFN | 13.99 | 196606040_SFN_PHI |
| Jim Bunning | PHI | 8.94 | 196606030_SFN_PHI |
| Mel Stottlemyre | NYA | 5.5 | 196606040_NYA_BOS |
| Bob Gibson | SLN | 4.67 | 196606030_SLN_ATL |
| Claude Osteen | LAN | 2.49 | 196606040_LAN_NYN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jerry Stephenson | BOS | -2.92 | 196606020_TEX_BOS |
| Jack Fisher | NYN | -2 | 196606030_LAN_NYN |
| Jack Lamabe | CHA | -1.61 | 196606030_TEX_CHA |
| Ray Sadecki | SFN | -1.41 | 196606030_SFN_PHI |
| Denny Lemaster | ATL | -1.22 | 196606020_SFN_ATL |
Based on accumulated WAA for this season up to 1966-06-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.57 | Juan Marichal | 105 | SFN |
| +003+ | 3.85 | Sandy Koufax | 91.3 | LAN |
| +005+ | 3.54 | Jim Bunning | 97.7 | PHI |
| +007+ | 3.05 | Bob Gibson | 102 | SLN |
| +009+ | 2.95 | Al Jackson | 49 | SLN |
| +012+ | 2.58 | Mike Cuellar | 53.3 | HOU |
| +016+ | 2.27 | Mel Stottlemyre | 93 | NYA |
| +017+ | 2.14 | Claude Osteen | 93.7 | LAN |
| +019+ | 2.1 | Pete Richert | 91.7 | TEX |
| +021+ | 2.02 | Jim Maloney | 59 | CIN |
| +022+ | 1.98 | Chris Short | 93.7 | PHI |
| +024+ | 1.89 | Steve Barber | 63.3 | BAL |
| +027+ | 1.78 | Dick Ellsworth | 83 | CHN |
| +036+ | 1.62 | Tommy John | 73.3 | CHA |
| +037+ | 1.6 | Dave Giusti | 62.7 | HOU |
| +041+ | 1.46 | Phil Ortega | 67.3 | TEX |
| +042+ | 1.45 | John Buzhardt | 54 | CHA |
| +046+ | 1.32 | Clay Carroll | 36.7 | ATL |
| +047+ | 1.3 | Don Sutton | 80 | LAN |
| XXXXX | 1.2 | Luis Tiant | 56.3 | CLE |
| XXXXX | 1.16 | Bob Veale | 84.3 | PIT |
| XXXXX | 1.16 | Whitey Ford | 40 | NYA |
| XXXXX | 1.08 | Vern Law | 40.3 | PIT |
| XXXXX | 1.04 | Don Schwall | 37 | PIT |
| XXXXX | 1.03 | Dennis Ribant | 35.3 | NYN |
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