| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 16.41 | 196609200_PHI_LAN |
| Jim Bunning | PHI | 9.53 | 196609190_PHI_LAN |
| Juan Marichal | SFN | 8.82 | 196609210_PIT_SFN |
| Bob Gibson | SLN | 6.79 | 196609210_SLN_ATL |
| Mike Cuellar | HOU | 4.64 | 196609200_NYN_HOU |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sammy Ellis | CIN | -6.65 | 196609210_CIN_CHN |
| Bob Shaw | NYN | -1.81 | 196609190_NYN_HOU |
| Tony Cloninger | ATL | -0.91 | 196609200_SLN_ATL |
| Vern Law | PIT | -0.64 | 196609200_PIT_SFN |
| Ron Herbel | SFN | -0.39 | 196609200_PIT_SFN |
Based on accumulated WAA for this season up to 1966-09-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.33 | Sandy Koufax | 297 | LAN |
| +005+ | 8.94 | Juan Marichal | 290 | SFN |
| +006+ | 8.7 | Jim Bunning | 291 | PHI |
| +010+ | 7.63 | Bob Gibson | 266.3 | SLN |
| +011+ | 7.32 | Gary Peters | 205 | CHA |
| +014+ | 7.05 | Mike Cuellar | 211.7 | HOU |
| +016+ | 6.03 | Al Jackson | 224.3 | SLN |
| +025+ | 5.05 | Jim Kaat | 282.7 | MIN |
| +028+ | 4.89 | Tommy John | 211.3 | CHA |
| +033+ | 4.44 | Bruce Howard | 149.3 | CHA |
| +035+ | 4.34 | Steve Hargan | 178.3 | CLE |
| +036+ | 4.25 | Joe Horlen | 188 | CHA |
| +038+ | 4.1 | Sonny Siebert | 242 | CLE |
| +041+ | 3.91 | Claude Osteen | 230.7 | LAN |
| +043+ | 3.65 | Jim Nash | 109.7 | OAK |
| +048+ | 3.35 | Jim Perry | 167.3 | MIN |
| +052+ | 3.19 | Steve Barber | 127 | BAL |
| +053+ | 3.06 | Dennis Ribant | 183.7 | NYN |
| +062+ | 2.72 | Jim Grant | 232.3 | MIN |
| +063+ | 2.71 | Jim Maloney | 206.7 | CIN |
| +064+ | 2.7 | Earl Wilson | 251 | TOT |
| +066+ | 2.69 | Dave McNally | 206 | BAL |
| +068+ | 2.64 | Lew Krausse | 173.3 | OAK |
| +069+ | 2.56 | Gaylord Perry | 232.3 | SFN |
| +080+ | 2.29 | Bobby Bolin | 211 | SFN |
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