| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 6.61 | 196505090_LAN_SFN |
| Chris Short | PHI | 5.55 | 196505070_SLN_PHI |
| Bob Veale | PIT | 4.15 | 196505080_CIN_PIT |
| Gary Peters | CHA | 3.58 | 196505080_CHA_MIN |
| Dean Chance | ANA | 3.08 | 196505071_OAK_ANA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Al Jackson | NYN | -2.86 | 196505091_ATL_NYN |
| Ray Sadecki | SLN | -2.09 | 196505090_SLN_PHI |
| Diego Segui | OAK | -2.03 | 196505080_OAK_ANA |
| Dave Morehead | BOS | -1.93 | 196505091_CLE_BOS |
| Art Mahaffey | PHI | -1.85 | 196505090_SLN_PHI |
Based on accumulated WAA for this season up to 1965-05-09.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.56 | Juan Marichal | 52.3 | SFN |
| +003+ | 2.48 | John Buzhardt | 36 | CHA |
| +004+ | 2.2 | Claude Osteen | 52 | LAN |
| +005+ | 2.07 | Chris Short | 48 | PHI |
| +007+ | 1.88 | Ralph Terry | 38 | CLE |
| +008+ | 1.85 | Marcelino Lopez | 48 | ANA |
| +013+ | 1.65 | Turk Farrell | 40.3 | HOU |
| +012+ | 1.65 | Camilo Pascual | 46 | MIN |
| +014+ | 1.63 | Joe Horlen | 31 | CHA |
| +016+ | 1.58 | Jim Kaat | 42.7 | MIN |
| +020+ | 1.41 | Rudy May | 26 | ANA |
| +022+ | 1.38 | Johnny Podres | 28 | LAN |
| XXXXX | 1.22 | Bob Gibson | 47.3 | SLN |
| XXXXX | 1.19 | Dave Giusti | 29.7 | HOU |
| XXXXX | 1.17 | Sandy Koufax | 45 | LAN |
| XXXXX | 1.16 | Jim Maloney | 33.3 | CIN |
| XXXXX | 1.1 | Milt Pappas | 23.3 | BAL |
| XXXXX | 1.05 | Robin Roberts | 38 | BAL |
| XXXXX | 1.04 | Mel Stottlemyre | 38 | NYA |
| XXXXX | 0.92 | Sammy Ellis | 40.3 | CIN |
| XXXXX | 0.92 | Warren Spahn | 41.3 | NYN |
| XXXXX | 0.91 | Tony Cloninger | 44.7 | ATL |
| XXXXX | 0.85 | Vern Law | 28.7 | PIT |
| XXXXX | 0.77 | Hank Aguirre | 27.3 | DET |
| XXXXX | 0.77 | Wade Blasingame | 33.3 | ATL |
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