| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 19.37 | 196608260_LAN_SFN |
| Jim Bunning | PHI | 6.62 | 196608250_PHI_PIT |
| Al Jackson | SLN | 4.33 | 196608260_PIT_SLN |
| Tommy John | CHA | 4.05 | 196608240_CHA_DET |
| Gaylord Perry | SFN | 2.38 | 196608240_CIN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Fred Talbot | NYA | -2.34 | 196608240_ANA_NYA |
| Hank Fischer | BOS | -1.51 | 196608252_OAK_BOS |
| Tony Cloninger | ATL | -1.26 | 196608240_ATL_LAN |
| Bill Hands | CHN | -1.25 | 196608240_NYN_CHN |
| Bob Shaw | NYN | -0.96 | 196608240_NYN_CHN |
Based on accumulated WAA for this season up to 1966-08-26.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.47 | Sandy Koufax | 255 | LAN |
| +006+ | 7.11 | Juan Marichal | 227.7 | SFN |
| +007+ | 7.02 | Bob Gibson | 219.7 | SLN |
| +008+ | 6.75 | Jim Bunning | 243 | PHI |
| +012+ | 6.46 | Gary Peters | 179 | CHA |
| +016+ | 5.4 | Al Jackson | 195.3 | SLN |
| +020+ | 5 | Mike Cuellar | 167.7 | HOU |
| +021+ | 4.97 | Tommy John | 173.7 | CHA |
| +028+ | 4.01 | Jim Maloney | 181.3 | CIN |
| +030+ | 3.98 | Jim Kaat | 224.7 | MIN |
| +031+ | 3.92 | Claude Osteen | 199.3 | LAN |
| +036+ | 3.42 | Steve Hargan | 140 | CLE |
| +037+ | 3.35 | Bruce Howard | 108.7 | CHA |
| +038+ | 3.35 | Steve Barber | 124 | BAL |
| +043+ | 3.22 | Gaylord Perry | 193 | SFN |
| +045+ | 3.06 | Joe Horlen | 163.3 | CHA |
| +046+ | 3.06 | Jim Grant | 194 | MIN |
| +047+ | 3.05 | Dennis Ribant | 153 | NYN |
| +050+ | 2.93 | Jim Perry | 135.7 | MIN |
| +058+ | 2.65 | Dave McNally | 172.3 | BAL |
| +063+ | 2.44 | George Brunet | 176 | ANA |
| +065+ | 2.37 | Sam McDowell | 140 | CLE |
| +078+ | 2.11 | Gary Bell | 207.7 | CLE |
| +079+ | 2.1 | Sonny Siebert | 205 | CLE |
| +082+ | 2.04 | Dave Boswell | 162.3 | MIN |
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