| Starter | Tm | Tier | Game |
|---|---|---|---|
| Juan Marichal | SFN | 9 | 196605170_SFN_LAN |
| Sam McDowell | CLE | 6.36 | 196605170_TEX_CLE |
| Chris Short | PHI | 5.6 | 196605170_SLN_PHI |
| Jim Maloney | CIN | 4.3 | 196605170_CIN_NYN |
| Joe Horlen | CHA | 2.87 | 196605170_CHA_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Art Mahaffey | SLN | -3.39 | 196605150_ATL_SLN |
| Diego Segui | TEX | -3.2 | 196605170_TEX_CLE |
| Wade Blasingame | ATL | -1.59 | 196605170_ATL_PIT |
| Jerry Stephenson | BOS | -1.5 | 196605170_BOS_BAL |
| Larry Jackson | PHI | -0.63 | 196605150_HOU_PHI |
Based on accumulated WAA for this season up to 1966-05-17.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.67 | Juan Marichal | 69 | SFN |
| +004+ | 2.32 | Sam McDowell | 65.7 | CLE |
| +010+ | 1.94 | Chris Short | 65.7 | PHI |
| +011+ | 1.86 | Mike Cuellar | 41.7 | HOU |
| +012+ | 1.81 | Jim Maloney | 34.7 | CIN |
| +013+ | 1.66 | Mel Stottlemyre | 54 | NYA |
| +014+ | 1.61 | Jim Bunning | 55.7 | PHI |
| +015+ | 1.61 | Gary Peters | 46 | CHA |
| +017+ | 1.58 | Bob Gibson | 60 | SLN |
| +019+ | 1.55 | Denny McLain | 56.7 | DET |
| +020+ | 1.54 | Dick Ellsworth | 48.7 | CHN |
| +022+ | 1.49 | Don Sutton | 61 | LAN |
| +024+ | 1.48 | Sandy Koufax | 55.3 | LAN |
| +029+ | 1.3 | Jim O'Toole | 28 | CIN |
| XXXXX | 1.23 | Clay Carroll | 27.7 | ATL |
| XXXXX | 1.22 | Barry Latman | 38.7 | HOU |
| XXXXX | 1.2 | Denny Lemaster | 44 | ATL |
| XXXXX | 1.13 | Claude Osteen | 59 | LAN |
| XXXXX | 1.13 | Whitey Ford | 39 | NYA |
| XXXXX | 1.11 | Luis Tiant | 30.7 | CLE |
| XXXXX | 1.09 | Phil Ortega | 38.3 | TEX |
| XXXXX | 1.07 | Al Jackson | 17 | SLN |
| XXXXX | 1.04 | Dean Chance | 56.7 | ANA |
| XXXXX | 0.98 | Sonny Siebert | 40.7 | CLE |
| XXXXX | 0.95 | Ray Sadecki | 29.7 | TOT |
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