| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 18.05 | 196610022_LAN_PHI |
| Juan Marichal | SFN | 8.69 | 196610011_SFN_PIT |
| Jim Bunning | PHI | 7.46 | 196610022_LAN_PHI |
| Bob Gibson | SLN | 4.86 | 196610010_CHN_SLN |
| Jim Kaat | MIN | 3.62 | 196610021_MIN_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sammy Ellis | CIN | -8.23 | 196610020_ATL_CIN |
| Rob Gardner | NYN | -2.04 | 196610022_HOU_NYN |
| Dave Giusti | HOU | -1.39 | 196610022_HOU_NYN |
| Wally Bunker | BAL | -1.13 | 196610022_MIN_BAL |
| Dick Ellsworth | CHN | -1.07 | 196610020_CHN_SLN |
Based on accumulated WAA for this season up to 1966-10-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 13.44 | Sandy Koufax | 323 | LAN |
| +006+ | 8.81 | Juan Marichal | 308 | SFN |
| +010+ | 8.06 | Jim Bunning | 314 | PHI |
| +011+ | 7.3 | Mike Cuellar | 227.7 | HOU |
| +013+ | 7.13 | Gary Peters | 205 | CHA |
| +014+ | 7 | Bob Gibson | 280.7 | SLN |
| +021+ | 5.81 | Jim Kaat | 305 | MIN |
| +027+ | 5.39 | Al Jackson | 232.7 | SLN |
| +029+ | 5.12 | Joe Horlen | 211.3 | CHA |
| +034+ | 4.44 | Tommy John | 223.7 | CHA |
| +035+ | 4.42 | Steve Hargan | 191 | CLE |
| +036+ | 4.39 | Bruce Howard | 150.3 | CHA |
| +037+ | 4.37 | Jim Perry | 184 | MIN |
| +039+ | 4.32 | Jim Nash | 126.7 | OAK |
| +042+ | 3.95 | Sonny Siebert | 242 | CLE |
| +043+ | 3.77 | Jim Maloney | 224.7 | CIN |
| +046+ | 3.73 | Claude Osteen | 240.3 | LAN |
| +048+ | 3.61 | Steve Barber | 133.3 | BAL |
| +053+ | 3.45 | Bob Veale | 268.7 | PIT |
| +060+ | 2.95 | Bobby Bolin | 224.7 | SFN |
| +063+ | 2.83 | Earl Wilson | 265 | TOT |
| +062+ | 2.83 | Sam McDowell | 194.7 | CLE |
| +066+ | 2.73 | Don Sutton | 225.7 | LAN |
| +067+ | 2.71 | Gaylord Perry | 255.7 | SFN |
| +070+ | 2.63 | Dean Chance | 260 | ANA |
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