| Starter | Tm | Tier | Game |
|---|---|---|---|
| Juan Marichal | SFN | 15.86 | 196508180_NYN_SFN |
| Sandy Koufax | LAN | 11.41 | 196508180_PHI_LAN |
| Sam McDowell | CLE | 5.1 | 196508181_OAK_CLE |
| Jim Bunning | PHI | 3.52 | 196508180_PHI_LAN |
| Milt Pappas | BAL | 3.39 | 196508200_NYA_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ray Sadecki | SLN | -5.54 | 196508190_ATL_SLN |
| Earl Wilson | BOS | -1.62 | 196508202_DET_BOS |
| Al Jackson | NYN | -0.83 | 196508200_SLN_NYN |
| Bob Buhl | CHN | -0.77 | 196508201_HOU_CHN |
| Don Nottebart | HOU | -0.7 | 196508180_PIT_HOU |
Based on accumulated WAA for this season up to 1965-08-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10 | Juan Marichal | 234 | SFN |
| +002+ | 8.15 | Sandy Koufax | 248 | LAN |
| +004+ | 6.81 | Vern Law | 186.3 | PIT |
| +009+ | 6.03 | Sam McDowell | 192.3 | CLE |
| +012+ | 5.39 | Bob Shaw | 176 | SFN |
| +018+ | 4.87 | Milt Pappas | 166.7 | BAL |
| +019+ | 4.82 | Claude Osteen | 215 | LAN |
| +020+ | 4.74 | Jim Bunning | 205.3 | PHI |
| +022+ | 4.66 | Mel Stottlemyre | 223 | NYA |
| +025+ | 4.43 | Sonny Siebert | 135.7 | CLE |
| +030+ | 4.05 | Jim Kaat | 197 | MIN |
| +031+ | 4.03 | George Brunet | 143.7 | ANA |
| +036+ | 3.83 | Marcelino Lopez | 183.3 | ANA |
| +037+ | 3.82 | Don Drysdale | 238.7 | LAN |
| +039+ | 3.73 | Jim Maloney | 186 | CIN |
| +046+ | 3.44 | Pete Richert | 144.7 | TEX |
| +047+ | 3.37 | Chris Short | 214 | PHI |
| +052+ | 2.93 | Jim Perry | 110.7 | MIN |
| +056+ | 2.85 | Denny McLain | 171.3 | DET |
| +060+ | 2.79 | Bob Gibson | 228.3 | SLN |
| +068+ | 2.54 | Bob Veale | 203.3 | PIT |
| +071+ | 2.29 | Al McBean | 86 | PIT |
| +084+ | 2.03 | Joe Horlen | 167.3 | CHA |
| +089+ | 1.91 | Turk Farrell | 166 | HOU |
| +091+ | 1.87 | Robin Roberts | 132.7 | TOT |
_