| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 12.48 | 196407100_LAN_HOU |
| Whitey Ford | NYA | 8.14 | 196407100_NYA_TEX |
| Juan Marichal | SFN | 5.9 | 196407100_SFN_CHN |
| Juan Pizarro | CHA | 5.3 | 196407101_CHA_ANA |
| Jim Bunning | PHI | 3.53 | 196407110_CIN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mudcat Grant | MIN | -2.7 | 196407100_MIN_OAK |
| Jack Fisher | NYN | -2.63 | 196407100_SLN_NYN |
| Bill Monbouquette | BOS | -1.78 | 196407090_BOS_DET |
| Phil Regan | DET | -1.68 | 196407101_BOS_DET |
| Ray Sadecki | SLN | -1.18 | 196407110_SLN_NYN |
Based on accumulated WAA for this season up to 1964-07-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 5.76 | Sandy Koufax | 146 | LAN |
| +003+ | 5.53 | Don Drysdale | 169 | LAN |
| +006+ | 4.71 | Jim Bunning | 142.7 | PHI |
| +010+ | 4.39 | Whitey Ford | 150 | NYA |
| +009+ | 4.39 | Dean Chance | 120.3 | ANA |
| +011+ | 4.33 | Chris Short | 91 | PHI |
| +013+ | 4.04 | Juan Marichal | 160.3 | SFN |
| +014+ | 3.75 | Juan Pizarro | 123.7 | CHA |
| +016+ | 3.61 | Bob Gibson | 132.3 | SLN |
| +017+ | 3.54 | Gary Peters | 128.7 | CHA |
| +026+ | 3.28 | Jack Kralick | 126.7 | CLE |
| +027+ | 3.25 | Joe Horlen | 93 | CHA |
| +033+ | 3 | Ron Herbel | 96 | SFN |
| +041+ | 2.58 | Roger Craig | 98.3 | SLN |
| +046+ | 2.34 | Jim Maloney | 123 | CIN |
| +047+ | 2.33 | Gaylord Perry | 72.3 | SFN |
| +053+ | 2.11 | Joe Sparma | 32.7 | DET |
| +054+ | 2.09 | Joe Gibbon | 78.7 | PIT |
| +057+ | 2.05 | Bobby Bolin | 84.3 | SFN |
| +060+ | 2 | Bo Belinsky | 94.3 | ANA |
| +064+ | 1.94 | Robin Roberts | 115 | BAL |
| +065+ | 1.91 | Bob Bruce | 101.7 | HOU |
| +066+ | 1.9 | Dave Wickersham | 140.3 | DET |
| +069+ | 1.79 | Fred Talbot | 41 | CHA |
| +074+ | 1.67 | Sam McDowell | 71.3 | CLE |
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