| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 16.85 | 196607090_ATL_LAN |
| Bob Gibson | SLN | 8.37 | 196607080_HOU_SLN |
| Juan Marichal | SFN | 8.11 | 196607080_CIN_SFN |
| Jim Maloney | CIN | 3.97 | 196607090_CIN_SFN |
| Bob Veale | PIT | 3.39 | 196607070_PIT_CHN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Diego Segui | TEX | -3.46 | 196607090_TEX_NYA |
| Fred Talbot | NYA | -2.82 | 196607090_TEX_NYA |
| Jim Lonborg | BOS | -2.75 | 196607081_CHA_BOS |
| Ray Sadecki | SFN | -2.33 | 196607070_CIN_SFN |
| Sammy Ellis | CIN | -1.37 | 196607070_CIN_SFN |
Based on accumulated WAA for this season up to 1966-07-09.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.6 | Sandy Koufax | 168.3 | LAN |
| +006+ | 5.57 | Juan Marichal | 172 | SFN |
| +009+ | 5.2 | Bob Gibson | 163.3 | SLN |
| +010+ | 5.03 | Jim Bunning | 151.7 | PHI |
| +012+ | 4.6 | Al Jackson | 113.3 | SLN |
| +013+ | 4.52 | Claude Osteen | 143.7 | LAN |
| +014+ | 4.11 | Mike Cuellar | 99.3 | HOU |
| +017+ | 3.81 | Steve Barber | 112 | BAL |
| +019+ | 3.46 | Joe Horlen | 107 | CHA |
| +024+ | 2.93 | Jim Kaat | 144.3 | MIN |
| +026+ | 2.91 | Sam McDowell | 101 | CLE |
| +030+ | 2.64 | Dennis Ribant | 87.7 | NYN |
| +034+ | 2.57 | Woodie Fryman | 94 | PIT |
| +038+ | 2.47 | Bob Veale | 142 | PIT |
| +037+ | 2.47 | Jim Maloney | 121.3 | CIN |
| +041+ | 2.4 | Gaylord Perry | 111.3 | SFN |
| +045+ | 2.25 | Minnie Rojas | 43.7 | ANA |
| +048+ | 2.23 | Gary Peters | 107.3 | CHA |
| +047+ | 2.23 | George Brunet | 106 | ANA |
| +049+ | 2.22 | Tommy John | 115 | CHA |
| +058+ | 1.98 | Ray Washburn | 84.3 | SLN |
| +063+ | 1.85 | Ken Johnson | 119.7 | ATL |
| +064+ | 1.84 | Sonny Siebert | 129.3 | CLE |
| +073+ | 1.55 | Denny McLain | 148.7 | DET |
| +076+ | 1.48 | Don Schwall | 49.3 | TOT |
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