| Starter | Tm | Tier | Game |
|---|---|---|---|
| Juan Marichal | SFN | 9.85 | 196609130_PHI_SFN |
| Jim Bunning | PHI | 8.67 | 196609140_PHI_SFN |
| Jim Kaat | MIN | 3.9 | 196609130_MIN_DET |
| Claude Osteen | LAN | 2.84 | 196609130_NYN_LAN |
| Tommy John | CHA | 2.6 | 196609130_CHA_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sammy Ellis | CIN | -4.89 | 196609140_CIN_SLN |
| Mickey Lolich | DET | -3.14 | 196609130_MIN_DET |
| Dick Ellsworth | CHN | -2.03 | 196609140_ATL_CHN |
| Hank Fischer | BOS | -1.16 | 196609140_CHA_BOS |
| Bob Shaw | NYN | -1.11 | 196609150_NYN_SFN |
Based on accumulated WAA for this season up to 1966-09-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.3 | Sandy Koufax | 279 | LAN |
| +006+ | 9.23 | Jim Bunning | 285 | PHI |
| +005+ | 9.23 | Juan Marichal | 272 | SFN |
| +010+ | 7.35 | Gary Peters | 205 | CHA |
| +011+ | 7.26 | Bob Gibson | 249.3 | SLN |
| +013+ | 6.68 | Mike Cuellar | 196.7 | HOU |
| +022+ | 5.28 | Al Jackson | 215.3 | SLN |
| +023+ | 5.22 | Jim Kaat | 266.7 | MIN |
| +031+ | 4.55 | Bruce Howard | 142.7 | CHA |
| +033+ | 4.46 | Claude Osteen | 221.7 | LAN |
| +035+ | 4.38 | Tommy John | 202 | CHA |
| +036+ | 4.13 | Sonny Siebert | 242 | CLE |
| +041+ | 3.71 | Jim Maloney | 203 | CIN |
| +042+ | 3.69 | Jim Perry | 163.7 | MIN |
| +044+ | 3.54 | Steve Hargan | 160.7 | CLE |
| +046+ | 3.38 | Jim Nash | 103.7 | OAK |
| +052+ | 3.22 | Dennis Ribant | 177.7 | NYN |
| +061+ | 2.75 | Jim Grant | 232.3 | MIN |
| +063+ | 2.65 | Dave McNally | 195 | BAL |
| +068+ | 2.41 | Billy O'Dell | 100.3 | TOT |
| +073+ | 2.3 | Earl Wilson | 243 | TOT |
| +077+ | 2.24 | Don Sutton | 217.7 | LAN |
| +081+ | 2.18 | Gaylord Perry | 224.3 | SFN |
| +084+ | 2.12 | Bob Veale | 228.7 | PIT |
| +088+ | 2.07 | Dave Boswell | 164.3 | MIN |
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