| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 17.49 | 196607140_LAN_NYN |
| Juan Marichal | SFN | 9.94 | 196607150_SFN_PHI |
| Jim Bunning | PHI | 9.06 | 196607100_PHI_CHN |
| Joe Horlen | CHA | 4.62 | 196607101_CHA_BOS |
| Sam McDowell | CLE | 4.19 | 196607101_CLE_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sammy Ellis | CIN | -2.37 | 196607150_SLN_CIN |
| Tony Cloninger | ATL | -1.4 | 196607140_HOU_ATL |
| Earl Wilson | DET | -1.1 | 196607140_BAL_DET |
| Jack Fisher | NYN | -1.08 | 196607150_LAN_NYN |
| Phil Ortega | TEX | -1.04 | 196607140_TEX_MIN |
Based on accumulated WAA for this season up to 1966-07-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.92 | Sandy Koufax | 177.3 | LAN |
| +003+ | 6.17 | Juan Marichal | 181.3 | SFN |
| +010+ | 5.24 | Bob Gibson | 163.3 | SLN |
| +011+ | 4.59 | Claude Osteen | 149.7 | LAN |
| +012+ | 4.41 | Al Jackson | 120.7 | SLN |
| +013+ | 4.17 | Mike Cuellar | 107.3 | HOU |
| +019+ | 3.61 | Steve Barber | 122.7 | BAL |
| +020+ | 3.59 | Jim Bunning | 161.7 | PHI |
| +021+ | 3.35 | Joe Horlen | 113 | CHA |
| +022+ | 3.11 | George Brunet | 122 | ANA |
| +023+ | 3.1 | Jim Kaat | 153.7 | MIN |
| +030+ | 2.78 | Tommy John | 124 | CHA |
| +033+ | 2.68 | Jim Maloney | 128.7 | CIN |
| +034+ | 2.64 | Dennis Ribant | 87.7 | NYN |
| +036+ | 2.6 | Bob Veale | 151 | PIT |
| +037+ | 2.59 | Woodie Fryman | 94 | PIT |
| +038+ | 2.58 | Minnie Rojas | 47.7 | ANA |
| +042+ | 2.41 | Sonny Siebert | 135.3 | CLE |
| +050+ | 2.26 | Gary Peters | 107.3 | CHA |
| +052+ | 2.19 | Sam McDowell | 101.7 | CLE |
| +058+ | 2.03 | Ray Washburn | 89.7 | SLN |
| +068+ | 1.87 | Ken Johnson | 119.7 | ATL |
| +069+ | 1.86 | Gaylord Perry | 114.7 | SFN |
| +071+ | 1.82 | Bruce Howard | 66 | CHA |
| +074+ | 1.64 | Gary Bell | 138.7 | CLE |
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