| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 16.86 | 196609030_LAN_CIN |
| Jim Bunning | PHI | 7.24 | 196609020_PHI_NYN |
| Mike Cuellar | HOU | 3.8 | 196609032_HOU_ATL |
| Tommy John | CHA | 3.47 | 196609020_BAL_CHA |
| Jim Maloney | CIN | 3.07 | 196609020_LAN_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Fred Talbot | NYA | -1.99 | 196609031_NYA_MIN |
| Mickey Lolich | DET | -1.49 | 196609010_DET_CHA |
| Jim Lonborg | BOS | -1.36 | 196609030_BOS_OAK |
| Milt Pappas | CIN | -1.11 | 196609010_CHN_CIN |
| Bob Shaw | NYN | -1.05 | 196609030_PHI_NYN |
Based on accumulated WAA for this season up to 1966-09-03.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.54 | Sandy Koufax | 263 | LAN |
| +006+ | 8.11 | Jim Bunning | 261 | PHI |
| +007+ | 8 | Juan Marichal | 245.7 | SFN |
| +008+ | 7.49 | Gary Peters | 196 | CHA |
| +011+ | 7.01 | Bob Gibson | 232.3 | SLN |
| +013+ | 6.31 | Mike Cuellar | 184.7 | HOU |
| +021+ | 5.09 | Al Jackson | 199.3 | SLN |
| +022+ | 4.97 | Jim Kaat | 242.7 | MIN |
| +026+ | 4.58 | Tommy John | 188.7 | CHA |
| +030+ | 4.18 | Jim Maloney | 193.3 | CIN |
| +033+ | 3.99 | Claude Osteen | 207 | LAN |
| +035+ | 3.9 | Bruce Howard | 119 | CHA |
| +038+ | 3.79 | Jim Perry | 151.7 | MIN |
| +040+ | 3.6 | Dennis Ribant | 166.7 | NYN |
| +045+ | 3.28 | Steve Hargan | 143 | CLE |
| +048+ | 3.13 | Sonny Siebert | 222 | CLE |
| +049+ | 3.12 | Jim Grant | 213.3 | MIN |
| +051+ | 3.06 | Joe Horlen | 172.7 | CHA |
| +052+ | 3.01 | Gaylord Perry | 208 | SFN |
| +061+ | 2.75 | Sam McDowell | 154.3 | CLE |
| +067+ | 2.46 | Don Sutton | 211.3 | LAN |
| +068+ | 2.44 | Bob Veale | 213.7 | PIT |
| +069+ | 2.42 | Jim Nash | 88.7 | OAK |
| +070+ | 2.36 | George Brunet | 190.3 | ANA |
| +074+ | 2.26 | Gary Bell | 221.7 | CLE |
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