| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 5.71 | 196505130_HOU_LAN |
| Gary Peters | CHA | 3.85 | 196505130_OAK_CHA |
| Camilo Pascual | MIN | 3.53 | 196505130_ANA_MIN |
| Bob Veale | PIT | 3.37 | 196505130_ATL_PIT |
| Jim Maloney | CIN | 3.25 | 196505130_CIN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Al Jackson | NYN | -3.93 | 196505140_CIN_NYN |
| Dave Morehead | BOS | -3.08 | 196505130_NYA_BOS |
| Ray Sadecki | SLN | -2.22 | 196505140_SLN_PIT |
| Buster Narum | TEX | -2.09 | 196505150_CLE_TEX |
| Diego Segui | OAK | -1.66 | 196505130_OAK_CHA |
Based on accumulated WAA for this season up to 1965-05-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.64 | Juan Marichal | 59.3 | SFN |
| +002+ | 2.79 | Claude Osteen | 67.7 | LAN |
| +008+ | 2.23 | Ralph Terry | 45 | CLE |
| +009+ | 2.14 | John Buzhardt | 40 | CHA |
| +010+ | 2.13 | Chris Short | 55 | PHI |
| +013+ | 1.84 | Sandy Koufax | 54 | LAN |
| +015+ | 1.83 | Jim Kaat | 56.7 | MIN |
| +016+ | 1.82 | Marcelino Lopez | 53 | ANA |
| +017+ | 1.81 | Joe Horlen | 46 | CHA |
| +019+ | 1.73 | Dave Giusti | 38.7 | HOU |
| +020+ | 1.66 | Johnny Podres | 37 | LAN |
| +021+ | 1.65 | Turk Farrell | 40.3 | HOU |
| +026+ | 1.49 | Rudy May | 32 | ANA |
| +029+ | 1.47 | Camilo Pascual | 52.3 | MIN |
| +033+ | 1.29 | Bob Gibson | 56.3 | SLN |
| +036+ | 1.26 | Mel Stottlemyre | 53 | NYA |
| XXXXX | 1.21 | Milt Pappas | 30.3 | BAL |
| XXXXX | 1.15 | Jim Maloney | 38.7 | CIN |
| XXXXX | 1.09 | Sammy Ellis | 48 | CIN |
| XXXXX | 1.05 | Hank Aguirre | 36.3 | DET |
| XXXXX | 0.99 | Tracy Stallard | 45 | SLN |
| XXXXX | 0.92 | Dave Boswell | 28.3 | MIN |
| XXXXX | 0.87 | Tommy John | 25 | CHA |
| XXXXX | 0.86 | Bob Buhl | 46 | CHN |
| XXXXX | 0.84 | Jack Fisher | 48.7 | NYN |
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