| Starter | Tm | Tier | Game |
|---|---|---|---|
| Juan Marichal | SFN | 11.02 | 196607200_NYN_SFN |
| Claude Osteen | LAN | 6.96 | 196607220_NYN_LAN |
| Joe Horlen | CHA | 4.24 | 196607200_CHA_CLE |
| George Brunet | ANA | 2.39 | 196607201_ANA_BOS |
| Chris Short | PHI | 1.94 | 196607210_PHI_HOU |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sammy Ellis | CIN | -3.5 | 196607201_CIN_CHN |
| Diego Segui | TEX | -2.94 | 196607220_OAK_TEX |
| Fred Talbot | NYA | -1.95 | 196607220_ANA_NYA |
| Ray Sadecki | SFN | -1.68 | 196607210_NYN_SFN |
| Dick Ellsworth | CHN | -1.27 | 196607220_SLN_CHN |
Based on accumulated WAA for this season up to 1966-07-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.8 | Sandy Koufax | 182.3 | LAN |
| +004+ | 6.42 | Juan Marichal | 189.3 | SFN |
| +011+ | 5.07 | Claude Osteen | 164.7 | LAN |
| +014+ | 4.35 | Mike Cuellar | 116.7 | HOU |
| +016+ | 3.86 | Al Jackson | 134.3 | SLN |
| +017+ | 3.86 | Joe Horlen | 126 | CHA |
| +019+ | 3.71 | Steve Barber | 122.7 | BAL |
| +023+ | 3.11 | Jim Bunning | 165.7 | PHI |
| +024+ | 3.09 | Jim Maloney | 138.7 | CIN |
| +026+ | 3.04 | Jim Kaat | 162.7 | MIN |
| +028+ | 2.9 | George Brunet | 126 | ANA |
| +029+ | 2.88 | Gary Peters | 124.3 | CHA |
| +030+ | 2.85 | Tommy John | 124 | CHA |
| +037+ | 2.63 | Bob Veale | 158 | PIT |
| +038+ | 2.57 | Gaylord Perry | 131 | SFN |
| +039+ | 2.55 | Woodie Fryman | 105.7 | PIT |
| +052+ | 2.28 | Dennis Ribant | 100.7 | NYN |
| +053+ | 2.27 | Sonny Siebert | 145.3 | CLE |
| +057+ | 2.15 | Ray Washburn | 98.7 | SLN |
| +059+ | 2.12 | Sam McDowell | 102.7 | CLE |
| +067+ | 2.02 | Ken Johnson | 131.7 | ATL |
| +069+ | 1.99 | Lew Krausse | 87.3 | OAK |
| +077+ | 1.64 | Gary Bell | 153 | CLE |
| +082+ | 1.54 | Jim O'Toole | 74.3 | CIN |
| +083+ | 1.53 | Dave McNally | 124.3 | BAL |
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