| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 17.03 | 196609250_LAN_CHN |
| Juan Marichal | SFN | 8.47 | 196609260_SFN_ATL |
| Bob Gibson | SLN | 6.08 | 196609260_LAN_SLN |
| Jim Kaat | MIN | 2.58 | 196609250_DET_MIN |
| Joe Horlen | CHA | 2.28 | 196609271_BOS_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mickey Lolich | DET | -3.93 | 196609270_DET_ANA |
| Ray Sadecki | SFN | -1.61 | 196609270_SFN_ATL |
| Hank Fischer | BOS | -1 | 196609250_BOS_NYA |
| Ken Holtzman | CHN | -0.55 | 196609250_LAN_CHN |
| Tommie Sisk | PIT | -0.45 | 196609250_PIT_ATL |
Based on accumulated WAA for this season up to 1966-09-27.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.67 | Sandy Koufax | 305 | LAN |
| +005+ | 9.06 | Juan Marichal | 299 | SFN |
| +007+ | 8.38 | Jim Bunning | 301 | PHI |
| +011+ | 7.34 | Mike Cuellar | 219.7 | HOU |
| +013+ | 7.23 | Gary Peters | 205 | CHA |
| +014+ | 7.06 | Bob Gibson | 272.3 | SLN |
| +019+ | 5.65 | Jim Kaat | 291.7 | MIN |
| +025+ | 5.4 | Al Jackson | 226.7 | SLN |
| +027+ | 5.39 | Joe Horlen | 203 | CHA |
| +034+ | 4.48 | Steve Hargan | 186 | CLE |
| +035+ | 4.46 | Bruce Howard | 150.3 | CHA |
| +036+ | 4.39 | Tommy John | 221.7 | CHA |
| +038+ | 4.05 | Jim Nash | 117.7 | OAK |
| +041+ | 4.02 | Sonny Siebert | 242 | CLE |
| +042+ | 3.87 | Claude Osteen | 236.3 | LAN |
| +044+ | 3.8 | Jim Perry | 176.3 | MIN |
| +046+ | 3.58 | Steve Barber | 132.3 | BAL |
| +051+ | 3.37 | Jim Maloney | 215.7 | CIN |
| +057+ | 3.08 | Earl Wilson | 259 | TOT |
| +061+ | 2.86 | Bob Veale | 249.7 | PIT |
| +068+ | 2.61 | Dave McNally | 206 | BAL |
| +069+ | 2.58 | Gaylord Perry | 239.7 | SFN |
| +071+ | 2.5 | Jim Grant | 241.3 | MIN |
| +074+ | 2.46 | Don Sutton | 221.7 | LAN |
| +076+ | 2.4 | Johnny Odom | 85 | OAK |
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