| Starter | Tm | Tier | Game |
|---|---|---|---|
| Juan Marichal | SFN | 17.56 | 196508040_SFN_CIN |
| Don Drysdale | LAN | 3.84 | 196508041_LAN_ATL |
| Vern Law | PIT | 3.21 | 196508030_PIT_NYN |
| Mel Stottlemyre | NYA | 2.08 | 196508030_NYA_CHA |
| Chris Short | PHI | 2 | 196508040_CHN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim O'Toole | CIN | -3.8 | 196508040_SFN_CIN |
| Dave Morehead | BOS | -2.27 | 196508040_BOS_OAK |
| Denny Lemaster | ATL | -2.01 | 196508042_LAN_ATL |
| Diego Segui | OAK | -1.9 | 196508030_BOS_OAK |
| Bob Purkey | SLN | -1.7 | 196508031_HOU_SLN |
Based on accumulated WAA for this season up to 1965-08-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.32 | Juan Marichal | 207 | SFN |
| +002+ | 7.29 | Sandy Koufax | 213 | LAN |
| +003+ | 6.68 | Vern Law | 165.7 | PIT |
| +004+ | 5.89 | Sam McDowell | 163 | CLE |
| +009+ | 5.16 | Milt Pappas | 145.3 | BAL |
| +012+ | 4.8 | Bob Shaw | 145.3 | SFN |
| +021+ | 4.24 | Claude Osteen | 199 | LAN |
| +023+ | 4.05 | Sonny Siebert | 126 | CLE |
| +024+ | 3.89 | George Brunet | 115 | ANA |
| +026+ | 3.78 | Mel Stottlemyre | 190 | NYA |
| +027+ | 3.74 | Don Drysdale | 210.7 | LAN |
| +032+ | 3.37 | Jim Kaat | 167 | MIN |
| +039+ | 3.2 | Jim Bunning | 174 | PHI |
| +040+ | 3.17 | Bob Gibson | 197.3 | SLN |
| +043+ | 3.04 | Joe Horlen | 149.3 | CHA |
| +049+ | 2.73 | Pete Richert | 123.7 | TEX |
| +051+ | 2.69 | Chris Short | 183 | PHI |
| +058+ | 2.47 | Marcelino Lopez | 152.7 | ANA |
| +063+ | 2.35 | Bob Veale | 179.3 | PIT |
| +064+ | 2.34 | Bobby Bolin | 83.3 | SFN |
| +066+ | 2.26 | Jim Maloney | 160.7 | CIN |
| +069+ | 2.14 | Mike McCormick | 114.3 | TEX |
| +072+ | 2.13 | Turk Farrell | 146.7 | HOU |
| +070+ | 2.13 | Ray Culp | 111 | PHI |
| +075+ | 2.11 | Denny McLain | 147.3 | DET |
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