| Starter | Tm | Tier | Game |
|---|---|---|---|
| Don Drysdale | LAN | 10.67 | 196407030_NYN_LAN |
| Chris Short | PHI | 4.27 | 196407020_PHI_LAN |
| Gary Peters | CHA | 3.19 | 196407040_CLE_CHA |
| Bob Gibson | SLN | 3.11 | 196407030_SLN_CIN |
| Robin Roberts | BAL | 2.55 | 196407040_OAK_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Moe Drabowsky | OAK | -2.93 | 196407040_OAK_BAL |
| Tracy Stallard | NYN | -2.34 | 196407040_NYN_LAN |
| Phil Regan | DET | -2.02 | 196407032_TEX_DET |
| Bennie Daniels | TEX | -1.96 | 196407031_TEX_DET |
| Bill Monbouquette | BOS | -1.75 | 196407030_ANA_BOS |
Based on accumulated WAA for this season up to 1964-07-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 5.38 | Don Drysdale | 162.7 | LAN |
| +004+ | 4.97 | Sandy Koufax | 131.7 | LAN |
| +007+ | 4.64 | Jim Bunning | 134.7 | PHI |
| +008+ | 4.61 | Whitey Ford | 140.3 | NYA |
| +010+ | 4.32 | Chris Short | 91 | PHI |
| +011+ | 4.09 | Dean Chance | 109.7 | ANA |
| +014+ | 3.61 | Juan Marichal | 143.3 | SFN |
| +020+ | 3.24 | Gary Peters | 120.7 | CHA |
| +023+ | 3.11 | Juan Pizarro | 106.7 | CHA |
| +024+ | 3.04 | Jim Maloney | 117 | CIN |
| +026+ | 3.03 | Bob Gibson | 123.3 | SLN |
| +030+ | 2.71 | Ron Herbel | 88 | SFN |
| +031+ | 2.7 | Dick Ellsworth | 144.7 | CHN |
| +043+ | 2.34 | Gaylord Perry | 65.3 | SFN |
| +044+ | 2.24 | Jack Kralick | 109.7 | CLE |
| +048+ | 2.06 | Bob Bruce | 98.7 | HOU |
| +051+ | 2.02 | Vern Law | 104.7 | PIT |
| +052+ | 2 | Roger Craig | 89.3 | SLN |
| +059+ | 1.91 | Tony Cloninger | 108.3 | ATL |
| +060+ | 1.89 | Robin Roberts | 115 | BAL |
| +066+ | 1.78 | Dave Wickersham | 131.7 | DET |
| +068+ | 1.7 | Joe Horlen | 75 | CHA |
| +071+ | 1.68 | Ken Johnson | 119 | HOU |
| +075+ | 1.63 | Joe Gibbon | 65.7 | PIT |
| +080+ | 1.56 | Fred Talbot | 36 | CHA |
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