| Starter | Tm | Tier | Game |
|---|---|---|---|
| Juan Marichal | SFN | 8.47 | 196609260_SFN_ATL |
| Jim Bunning | PHI | 7.47 | 196609281_PIT_PHI |
| Bob Gibson | SLN | 6.08 | 196609260_LAN_SLN |
| Mike Cuellar | HOU | 5.49 | 196609282_HOU_CIN |
| Jim Kaat | MIN | 3.28 | 196609280_CLE_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sammy Ellis | CIN | -8.33 | 196609282_HOU_CIN |
| Mickey Lolich | DET | -3.93 | 196609270_DET_ANA |
| Ray Sadecki | SFN | -1.61 | 196609270_SFN_ATL |
| Dick Ellsworth | CHN | -1.41 | 196609281_CHN_NYN |
| Tony Cloninger | ATL | -1.25 | 196609280_SFN_ATL |
Based on accumulated WAA for this season up to 1966-09-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.62 | Sandy Koufax | 305 | LAN |
| +005+ | 9.01 | Juan Marichal | 299 | SFN |
| +007+ | 8.55 | Jim Bunning | 309 | PHI |
| +011+ | 7.34 | Mike Cuellar | 227.7 | HOU |
| +013+ | 7.19 | Gary Peters | 205 | CHA |
| +014+ | 7.01 | Bob Gibson | 272.3 | SLN |
| +017+ | 6.05 | Jim Kaat | 299.7 | MIN |
| +025+ | 5.36 | Al Jackson | 226.7 | SLN |
| +026+ | 5.35 | Joe Horlen | 203 | CHA |
| +034+ | 4.45 | Steve Hargan | 186 | CLE |
| +035+ | 4.43 | Bruce Howard | 150.3 | CHA |
| +036+ | 4.34 | Tommy John | 221.7 | CHA |
| +039+ | 4.03 | Jim Nash | 117.7 | OAK |
| +041+ | 3.97 | Sonny Siebert | 242 | CLE |
| +042+ | 3.86 | Jim Maloney | 224.7 | CIN |
| +043+ | 3.84 | Claude Osteen | 236.3 | LAN |
| +045+ | 3.76 | Jim Perry | 176.3 | MIN |
| +048+ | 3.55 | Steve Barber | 132.3 | BAL |
| +053+ | 3.34 | Bob Veale | 258.7 | PIT |
| +059+ | 3.02 | Earl Wilson | 259 | TOT |
| +062+ | 2.85 | Gaylord Perry | 248.7 | SFN |
| +065+ | 2.75 | Don Sutton | 225.7 | LAN |
| +070+ | 2.57 | Dave McNally | 206 | BAL |
| +073+ | 2.45 | Jim Grant | 241.3 | MIN |
| +076+ | 2.38 | Johnny Odom | 85 | OAK |
_