| Starter | Tm | Tier | Game |
|---|---|---|---|
| Don Drysdale | LAN | 11.72 | 196407090_LAN_HOU |
| Whitey Ford | NYA | 9.14 | 196407050_MIN_NYA |
| Juan Marichal | SFN | 5.8 | 196407050_PHI_SFN |
| Dean Chance | ANA | 4.24 | 196407050_ANA_BOS |
| Gary Peters | CHA | 4.11 | 196407090_CHA_ANA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mudcat Grant | MIN | -2.91 | 196407050_MIN_NYA |
| Bill Monbouquette | BOS | -1.78 | 196407090_BOS_DET |
| Al Jackson | NYN | -1.74 | 196407090_SLN_NYN |
| Lee Stange | CLE | -1.33 | 196407052_CLE_CHA |
| Alan Koch | TEX | -0.64 | 196407052_TEX_DET |
Based on accumulated WAA for this season up to 1964-07-09.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 5.7 | Sandy Koufax | 140.7 | LAN |
| +003+ | 5.47 | Don Drysdale | 169 | LAN |
| +007+ | 4.63 | Jim Bunning | 134.7 | PHI |
| +010+ | 4.31 | Chris Short | 91 | PHI |
| +011+ | 4.1 | Whitey Ford | 144.3 | NYA |
| +012+ | 3.89 | Juan Pizarro | 116 | CHA |
| +013+ | 3.89 | Juan Marichal | 151.3 | SFN |
| +015+ | 3.61 | Dean Chance | 111.3 | ANA |
| +018+ | 3.49 | Gary Peters | 128.7 | CHA |
| +027+ | 3.02 | Bob Gibson | 123.3 | SLN |
| +029+ | 2.97 | Ron Herbel | 96 | SFN |
| +035+ | 2.56 | Roger Craig | 98.3 | SLN |
| +038+ | 2.5 | Jack Kralick | 117.7 | CLE |
| +039+ | 2.46 | Joe Horlen | 84 | CHA |
| +043+ | 2.31 | Gaylord Perry | 72.3 | SFN |
| +044+ | 2.3 | Jim Maloney | 123 | CIN |
| +049+ | 2.21 | Joe Gibbon | 72.7 | PIT |
| +055+ | 2.05 | Bob Bruce | 98.7 | HOU |
| +058+ | 1.98 | Bo Belinsky | 94.3 | ANA |
| +061+ | 1.94 | Dick Ellsworth | 147.7 | CHN |
| +063+ | 1.89 | Robin Roberts | 115 | BAL |
| +062+ | 1.89 | Tony Cloninger | 108.3 | ATL |
| +068+ | 1.86 | Dave Wickersham | 140.3 | DET |
| +077+ | 1.64 | Sam McDowell | 71.3 | CLE |
| +080+ | 1.56 | Fred Talbot | 36 | CHA |
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