| 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 |
| Chris Short | PHI | 4.65 | 196407121_ATL_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Moe Drabowsky | OAK | -3.64 | 196407122_CHA_OAK |
| Mudcat Grant | MIN | -2.7 | 196407100_MIN_OAK |
| Jack Fisher | NYN | -2.63 | 196407100_SLN_NYN |
| Phil Regan | DET | -1.68 | 196407101_BOS_DET |
| Dave Morehead | BOS | -1.56 | 196407102_BOS_DET |
Based on accumulated WAA for this season up to 1964-07-12.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 5.75 | Sandy Koufax | 146 | LAN |
| +003+ | 5.51 | Don Drysdale | 169 | LAN |
| +006+ | 4.68 | Jim Bunning | 142.7 | PHI |
| +009+ | 4.36 | Dean Chance | 120.3 | ANA |
| +010+ | 4.27 | Whitey Ford | 150 | NYA |
| +012+ | 4.03 | Juan Marichal | 160.3 | SFN |
| +013+ | 3.81 | Chris Short | 95 | PHI |
| +015+ | 3.72 | Juan Pizarro | 123.7 | CHA |
| +016+ | 3.59 | Bob Gibson | 132.3 | SLN |
| +019+ | 3.51 | Gary Peters | 128.7 | CHA |
| +027+ | 3.23 | Joe Horlen | 93 | CHA |
| +028+ | 3.15 | Jack Kralick | 126.7 | CLE |
| +036+ | 2.79 | Ron Herbel | 101.3 | SFN |
| +042+ | 2.56 | Roger Craig | 98.3 | SLN |
| +047+ | 2.34 | Jim Maloney | 123 | CIN |
| +048+ | 2.33 | Gaylord Perry | 75 | SFN |
| +055+ | 2.1 | Joe Sparma | 32.7 | DET |
| +057+ | 2.08 | Joe Gibbon | 78.7 | PIT |
| +059+ | 2.04 | Bobby Bolin | 84.3 | SFN |
| +061+ | 1.99 | Robin Roberts | 121 | BAL |
| +062+ | 1.98 | Bo Belinsky | 94.3 | ANA |
| +066+ | 1.89 | Bob Bruce | 101.7 | HOU |
| +068+ | 1.86 | Dave Wickersham | 140.3 | DET |
| +075+ | 1.78 | Fred Talbot | 41 | CHA |
| +083+ | 1.62 | Fred Newman | 90 | ANA |
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