| Starter | Tm | Tier | Game |
|---|---|---|---|
| Whitey Ford | NYA | 13.49 | 196406240_NYA_BAL |
| Don Drysdale | LAN | 9.26 | 196406240_LAN_ATL |
| Juan Pizarro | CHA | 4.26 | 196406262_CHA_MIN |
| Bob Gibson | SLN | 3.59 | 196406260_PHI_SLN |
| Robin Roberts | BAL | 3.04 | 196406240_NYA_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Moe Drabowsky | OAK | -4.36 | 196406261_OAK_ANA |
| Mudcat Grant | MIN | -3.2 | 196406250_CLE_MIN |
| Jack Fisher | NYN | -1.84 | 196406250_PIT_NYN |
| Dave Morehead | BOS | -1.58 | 196406260_CLE_BOS |
| Ray Sadecki | SLN | -1.42 | 196406240_HOU_SLN |
Based on accumulated WAA for this season up to 1964-06-26.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 5.24 | Whitey Ford | 130.3 | NYA |
| +003+ | 4.67 | Sandy Koufax | 122.7 | LAN |
| +004+ | 4.42 | Don Drysdale | 145.7 | LAN |
| +007+ | 3.71 | Jim Bunning | 115.7 | PHI |
| +008+ | 3.67 | Dean Chance | 94.3 | ANA |
| +010+ | 3.47 | Bob Gibson | 113 | SLN |
| +015+ | 3.29 | Chris Short | 76 | PHI |
| +019+ | 3.12 | Jack Kralick | 105 | CLE |
| +021+ | 3.06 | Juan Pizarro | 97.7 | CHA |
| +028+ | 2.59 | Jim Maloney | 101 | CIN |
| +032+ | 2.42 | Juan Marichal | 125.3 | SFN |
| +034+ | 2.4 | Robin Roberts | 101.3 | BAL |
| +037+ | 2.33 | Roger Craig | 80.3 | SLN |
| +040+ | 2.27 | Ron Herbel | 77 | SFN |
| +045+ | 2.1 | Gary Peters | 103.7 | CHA |
| +049+ | 2 | Hank Fischer | 84 | ATL |
| +051+ | 1.94 | Vern Law | 93.7 | PIT |
| +054+ | 1.89 | Dave Wickersham | 117 | DET |
| +057+ | 1.85 | Turk Farrell | 98 | HOU |
| +058+ | 1.84 | Dick Ellsworth | 126 | CHN |
| +061+ | 1.82 | Joe Gibbon | 65.3 | PIT |
| +063+ | 1.79 | Claude Osteen | 102.3 | TEX |
| +072+ | 1.56 | Steve Hamilton | 37.7 | NYA |
| +074+ | 1.49 | Bo Belinsky | 83.3 | ANA |
| +075+ | 1.48 | Bob Shaw | 57 | SFN |
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