| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 15.23 | 196609111_HOU_LAN |
| Juan Marichal | SFN | 9.57 | 196609090_CHN_SFN |
| Jim Bunning | PHI | 7.78 | 196609100_CIN_PHI |
| Bob Gibson | SLN | 6.91 | 196609100_SLN_PIT |
| Gary Peters | CHA | 6.01 | 196609090_TEX_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sammy Ellis | CIN | -5.95 | 196609100_CIN_PHI |
| Bob Bruce | HOU | -2.89 | 196609090_HOU_LAN |
| Dick Ellsworth | CHN | -2.3 | 196609100_CHN_SFN |
| Fred Talbot | NYA | -1.57 | 196609090_NYA_BOS |
| Fred Newman | ANA | -1.07 | 196609110_ANA_CLE |
Based on accumulated WAA for this season up to 1966-09-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.33 | Sandy Koufax | 279 | LAN |
| +005+ | 8.93 | Juan Marichal | 263 | SFN |
| +006+ | 8.49 | Jim Bunning | 276 | PHI |
| +009+ | 7.33 | Gary Peters | 205 | CHA |
| +010+ | 7.28 | Bob Gibson | 249.3 | SLN |
| +014+ | 6.7 | Mike Cuellar | 196.7 | HOU |
| +016+ | 5.74 | Jim Kaat | 260.7 | MIN |
| +022+ | 5.3 | Al Jackson | 215.3 | SLN |
| +026+ | 4.76 | Tommy John | 196.7 | CHA |
| +030+ | 4.62 | Claude Osteen | 215.7 | LAN |
| +033+ | 4.47 | Bruce Howard | 136.7 | CHA |
| +040+ | 3.7 | Jim Maloney | 203 | CIN |
| +041+ | 3.68 | Jim Perry | 158.7 | MIN |
| +042+ | 3.56 | Sonny Siebert | 231 | CLE |
| +044+ | 3.44 | Jim Nash | 103.7 | OAK |
| +048+ | 3.23 | Jim Grant | 228.3 | MIN |
| +053+ | 3.07 | Dennis Ribant | 176 | NYN |
| +059+ | 2.76 | Steve Hargan | 147.7 | CLE |
| +062+ | 2.66 | Dave McNally | 195 | BAL |
| +071+ | 2.35 | Don Sutton | 213.7 | LAN |
| +073+ | 2.32 | Earl Wilson | 243 | TOT |
| +074+ | 2.3 | Billy O'Dell | 99 | TOT |
| +080+ | 2.16 | Lew Krausse | 166 | OAK |
| +083+ | 2.13 | Bob Veale | 228.7 | PIT |
| +085+ | 2.1 | Sam McDowell | 172.7 | CLE |
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