| Starter | Tm | Tier | Game |
|---|---|---|---|
| Juan Marichal | SFN | 13.48 | 196509050_SFN_CHN |
| Sandy Koufax | LAN | 10 | 196509050_LAN_HOU |
| Sam McDowell | CLE | 5.97 | 196509040_CLE_BAL |
| Jim Bunning | PHI | 3.38 | 196509040_PHI_CIN |
| Mel Stottlemyre | NYA | 3.03 | 196509050_BOS_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ray Sadecki | SLN | -6.12 | 196509030_NYN_SLN |
| Jim O'Toole | CIN | -4.66 | 196509030_PHI_CIN |
| Jim Bouton | NYA | -2.7 | 196509041_BOS_NYA |
| Phil Ortega | TEX | -2.12 | 196509052_TEX_DET |
| Dave Morehead | BOS | -1.33 | 196509041_BOS_NYA |
Based on accumulated WAA for this season up to 1965-09-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.84 | Juan Marichal | 253 | SFN |
| +002+ | 8.69 | Sandy Koufax | 281.7 | LAN |
| +005+ | 7.41 | Sam McDowell | 223.3 | CLE |
| +008+ | 7.02 | Vern Law | 208.3 | PIT |
| +016+ | 5.19 | Bob Shaw | 194.3 | SFN |
| +017+ | 5.11 | Sonny Siebert | 143.3 | CLE |
| +023+ | 4.85 | Mel Stottlemyre | 248 | NYA |
| +025+ | 4.66 | Jim Maloney | 208.3 | CIN |
| +028+ | 4.6 | Jim Bunning | 239 | PHI |
| +033+ | 4.4 | Milt Pappas | 184.3 | BAL |
| +036+ | 4.25 | George Brunet | 164.7 | ANA |
| +045+ | 3.71 | Jim Kaat | 223.3 | MIN |
| +048+ | 3.64 | Bob Gibson | 253.7 | SLN |
| +049+ | 3.57 | Jim Perry | 141 | MIN |
| +050+ | 3.49 | Pete Richert | 158 | TEX |
| +051+ | 3.45 | Don Drysdale | 261.3 | LAN |
| +053+ | 3.38 | Denny McLain | 186.3 | DET |
| +058+ | 3.24 | Marcelino Lopez | 202.3 | ANA |
| +059+ | 3.15 | Joe Horlen | 194.3 | CHA |
| +060+ | 3.09 | Claude Osteen | 234 | LAN |
| +075+ | 2.77 | Al McBean | 100.3 | PIT |
| +084+ | 2.5 | Bobby Bolin | 121.3 | SFN |
| +086+ | 2.39 | Bob Veale | 221 | PIT |
| +088+ | 2.34 | Steve Barber | 172 | BAL |
| +091+ | 2.24 | Chris Short | 228.3 | PHI |
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