| 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 |
| Paul Lindblad | OAK | -0.87 | 196609130_OAK_CLE |
Based on accumulated WAA for this season up to 1966-09-14.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.3 | Sandy Koufax | 279 | LAN |
| +005+ | 9.22 | Jim Bunning | 285 | PHI |
| +006+ | 9.22 | Juan Marichal | 272 | SFN |
| +009+ | 7.33 | Gary Peters | 205 | CHA |
| +011+ | 7.26 | Bob Gibson | 249.3 | SLN |
| +014+ | 6.68 | Mike Cuellar | 196.7 | HOU |
| +021+ | 5.27 | Al Jackson | 215.3 | SLN |
| +023+ | 5.2 | Jim Kaat | 266.7 | MIN |
| +032+ | 4.54 | Bruce Howard | 142.7 | CHA |
| +034+ | 4.46 | Claude Osteen | 221.7 | LAN |
| +035+ | 4.36 | Tommy John | 202 | CHA |
| +039+ | 3.7 | Jim Maloney | 203 | CIN |
| +040+ | 3.68 | Jim Perry | 163.7 | MIN |
| +041+ | 3.55 | Steve Hargan | 160.7 | CLE |
| +044+ | 3.45 | Sonny Siebert | 231 | CLE |
| +045+ | 3.39 | Jim Nash | 103.7 | OAK |
| +050+ | 3.23 | Jim Grant | 228.3 | MIN |
| +051+ | 3.21 | Dennis Ribant | 177.7 | NYN |
| +063+ | 2.64 | Dave McNally | 195 | BAL |
| +075+ | 2.29 | Billy O'Dell | 99 | TOT |
| +074+ | 2.29 | Earl Wilson | 243 | TOT |
| +078+ | 2.24 | Don Sutton | 217.7 | LAN |
| +079+ | 2.17 | Gaylord Perry | 224.3 | SFN |
| +083+ | 2.1 | Bob Veale | 228.7 | PIT |
| +085+ | 2.07 | Lew Krausse | 166 | OAK |
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