| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 17.03 | 196609250_LAN_CHN |
| Jim Bunning | PHI | 7.99 | 196609240_SLN_PHI |
| Mike Cuellar | HOU | 4.92 | 196609240_SFN_HOU |
| Al Jackson | SLN | 3.91 | 196609240_SLN_PHI |
| Jim Kaat | MIN | 2.58 | 196609250_DET_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dick Ellsworth | CHN | -1.57 | 196609232_LAN_CHN |
| Bob Shaw | NYN | -1.21 | 196609240_NYN_CIN |
| Wally Bunker | BAL | -1.21 | 196609240_BAL_ANA |
| Milt Pappas | CIN | -1.07 | 196609240_NYN_CIN |
| Hank Fischer | BOS | -1 | 196609250_BOS_NYA |
Based on accumulated WAA for this season up to 1966-09-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.71 | Sandy Koufax | 305 | LAN |
| +005+ | 8.79 | Juan Marichal | 290 | SFN |
| +007+ | 8.38 | Jim Bunning | 300 | PHI |
| +011+ | 7.45 | Bob Gibson | 266.3 | SLN |
| +012+ | 7.38 | Mike Cuellar | 219.7 | HOU |
| +013+ | 7.26 | Gary Peters | 205 | CHA |
| +018+ | 5.7 | Jim Kaat | 291.7 | MIN |
| +024+ | 5.44 | Al Jackson | 226.7 | SLN |
| +031+ | 4.76 | Joe Horlen | 195 | CHA |
| +034+ | 4.5 | Steve Hargan | 186 | CLE |
| +035+ | 4.48 | Bruce Howard | 150.3 | CHA |
| +037+ | 4.27 | Tommy John | 214.7 | CHA |
| +039+ | 4.07 | Jim Nash | 117.7 | OAK |
| +041+ | 4.04 | Sonny Siebert | 242 | CLE |
| +043+ | 3.87 | Claude Osteen | 230.7 | LAN |
| +045+ | 3.6 | Steve Barber | 132.3 | BAL |
| +047+ | 3.4 | Jim Maloney | 215.7 | CIN |
| +050+ | 3.29 | Jim Perry | 167.3 | MIN |
| +055+ | 3.1 | Earl Wilson | 259 | TOT |
| +059+ | 2.92 | Bob Veale | 249.7 | PIT |
| +067+ | 2.64 | Dave McNally | 206 | BAL |
| +068+ | 2.62 | Gaylord Perry | 239.7 | SFN |
| +070+ | 2.54 | Jim Grant | 241.3 | MIN |
| +071+ | 2.5 | Don Sutton | 221.7 | LAN |
| +074+ | 2.41 | Johnny Odom | 85 | OAK |
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