| Starter | Tm | Tier | Game |
|---|---|---|---|
| Juan Marichal | SFN | 11.85 | 196505260_ATL_SFN |
| Sandy Koufax | LAN | 8.28 | 196505260_SLN_LAN |
| Camilo Pascual | MIN | 4.54 | 196505260_MIN_BOS |
| Jim Maloney | CIN | 4.04 | 196505240_CIN_HOU |
| Gary Peters | CHA | 3.25 | 196505260_CLE_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Al Jackson | NYN | -3.6 | 196505250_NYN_PHI |
| Diego Segui | OAK | -1.82 | 196505260_OAK_BAL |
| Art Mahaffey | PHI | -1.69 | 196505260_PIT_PHI |
| Dave Wickersham | DET | -1.66 | 196505250_DET_CHA |
| Hank Fischer | ATL | -1.52 | 196505240_ATL_SFN |
Based on accumulated WAA for this season up to 1965-05-26.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 3.02 | Marcelino Lopez | 75 | ANA |
| +004+ | 2.84 | Sandy Koufax | 81.3 | LAN |
| +005+ | 2.81 | Juan Marichal | 81 | SFN |
| +007+ | 2.56 | Johnny Podres | 53 | LAN |
| +012+ | 2.37 | Bob Gibson | 82.3 | SLN |
| +013+ | 2.35 | Jim Kaat | 68.7 | MIN |
| +016+ | 2.06 | Jim Maloney | 52.7 | CIN |
| +017+ | 2.04 | Claude Osteen | 79.3 | LAN |
| +018+ | 2.01 | Turk Farrell | 48.7 | HOU |
| +026+ | 1.72 | Milt Pappas | 52 | BAL |
| +029+ | 1.69 | Joe Horlen | 57.3 | CHA |
| +030+ | 1.65 | Don Drysdale | 84.7 | LAN |
| +033+ | 1.64 | Bob Buhl | 60 | CHN |
| +031+ | 1.64 | Sonny Siebert | 42.3 | CLE |
| +036+ | 1.59 | John Buzhardt | 49 | CHA |
| +039+ | 1.56 | Bob Shaw | 36.3 | SFN |
| +043+ | 1.5 | Wade Blasingame | 60.3 | ATL |
| +044+ | 1.47 | Curt Simmons | 64.3 | SLN |
| +045+ | 1.47 | Jim Lonborg | 48 | BOS |
| +051+ | 1.33 | Camilo Pascual | 69 | MIN |
| +053+ | 1.3 | Jim Brewer | 18 | LAN |
| +057+ | 1.28 | Dave Boswell | 34.3 | MIN |
| XXXXX | 1.18 | Mel Stottlemyre | 70.3 | NYA |
| XXXXX | 1.11 | Ralph Terry | 55.3 | CLE |
| XXXXX | 1.08 | Bobby Bolin | 31 | SFN |
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