| Starter | Tm | Tier | Game |
|---|---|---|---|
| Vern Law | PIT | 4.51 | 196508122_PIT_SFN |
| Bob Shaw | SFN | 3.9 | 196508121_PIT_SFN |
| Don Drysdale | LAN | 2.85 | 196508110_NYN_LAN |
| Sonny Siebert | CLE | 2.75 | 196508130_MIN_CLE |
| Jim Maloney | CIN | 2.26 | 196508130_CIN_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim O'Toole | CIN | -3.94 | 196508110_CHN_CIN |
| Diego Segui | OAK | -1.96 | 196508120_OAK_DET |
| Earl Wilson | BOS | -1.71 | 196508110_BAL_BOS |
| Denny Lemaster | ATL | -1.53 | 196508130_ATL_CHN |
| Don Nottebart | HOU | -1.17 | 196508130_NYN_HOU |
Based on accumulated WAA for this season up to 1965-08-13.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.51 | Juan Marichal | 216 | SFN |
| +002+ | 7.6 | Sandy Koufax | 231 | LAN |
| +003+ | 7.06 | Vern Law | 178.7 | PIT |
| +009+ | 5.6 | Sam McDowell | 176.3 | CLE |
| +014+ | 4.86 | Claude Osteen | 208 | LAN |
| +017+ | 4.77 | Jim Bunning | 192 | PHI |
| +020+ | 4.65 | Bob Shaw | 158 | SFN |
| +021+ | 4.53 | Sonny Siebert | 133.7 | CLE |
| +024+ | 4.35 | George Brunet | 130 | ANA |
| +028+ | 4.23 | Mel Stottlemyre | 207 | NYA |
| +029+ | 4.2 | Milt Pappas | 152.7 | BAL |
| +031+ | 4.1 | Don Drysdale | 221.7 | LAN |
| +037+ | 3.65 | Marcelino Lopez | 168.7 | ANA |
| +046+ | 3.2 | Bob Gibson | 212.3 | SLN |
| +045+ | 3.2 | Pete Richert | 136 | TEX |
| +047+ | 3.16 | Jim Kaat | 181 | MIN |
| +048+ | 3.02 | Turk Farrell | 163.7 | HOU |
| +051+ | 2.98 | Bob Veale | 195.3 | PIT |
| +052+ | 2.96 | Jim Maloney | 176 | CIN |
| +054+ | 2.87 | Jim Perry | 104.7 | MIN |
| +059+ | 2.64 | Chris Short | 196.7 | PHI |
| +066+ | 2.37 | Al McBean | 81.7 | PIT |
| +070+ | 2.33 | Joe Horlen | 160.3 | CHA |
| +071+ | 2.33 | Bobby Bolin | 90.3 | SFN |
| +076+ | 2.24 | Steve Hamilton | 47 | NYA |
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