| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 11.25 | 196407180_CHN_LAN |
| Chris Short | PHI | 4.03 | 196407170_PHI_CIN |
| Gary Peters | CHA | 3.31 | 196407170_OAK_CHA |
| Robin Roberts | BAL | 2 | 196407170_DET_BAL |
| Jim Bouton | NYA | 1.65 | 196407160_BAL_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Moe Drabowsky | OAK | -4.32 | 196407170_OAK_CHA |
| Tracy Stallard | NYN | -2.17 | 196407160_NYN_CHN |
| Glen Hobbie | SLN | -2.05 | 196407180_NYN_SLN |
| Bennie Daniels | TEX | -1.34 | 196407180_TEX_BOS |
| Bill Monbouquette | BOS | -1.31 | 196407170_TEX_BOS |
Based on accumulated WAA for this season up to 1964-07-18.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 6.21 | Sandy Koufax | 162.7 | LAN |
| +003+ | 5.26 | Don Drysdale | 184.3 | LAN |
| +004+ | 5.15 | Dean Chance | 129.3 | ANA |
| +006+ | 5.08 | Jim Bunning | 150.7 | PHI |
| +008+ | 5.04 | Whitey Ford | 159 | NYA |
| +012+ | 4.09 | Juan Pizarro | 131.7 | CHA |
| +018+ | 3.81 | Chris Short | 101.3 | PHI |
| +021+ | 3.61 | Juan Marichal | 165.7 | SFN |
| +022+ | 3.59 | Gary Peters | 143 | CHA |
| +028+ | 3.31 | Joe Horlen | 93 | CHA |
| +031+ | 3.01 | Ron Herbel | 107.7 | SFN |
| +033+ | 2.99 | Bob Gibson | 139.7 | SLN |
| +035+ | 2.91 | Jack Kralick | 130.7 | CLE |
| +038+ | 2.86 | Robin Roberts | 130 | BAL |
| +046+ | 2.52 | Jim Maloney | 132 | CIN |
| +048+ | 2.38 | Roger Craig | 110.7 | SLN |
| +049+ | 2.36 | Gaylord Perry | 82 | SFN |
| +054+ | 2.24 | Fred Newman | 97 | ANA |
| +056+ | 2.21 | Bob Bruce | 109.3 | HOU |
| +058+ | 2.18 | Dick Ellsworth | 158.7 | CHN |
| +064+ | 2.05 | Jim O'Toole | 109 | CIN |
| +067+ | 2.03 | Bobby Bolin | 90.7 | SFN |
| +073+ | 1.91 | Bob Veale | 145.3 | PIT |
| +077+ | 1.86 | Hank Fischer | 104.7 | ATL |
| +080+ | 1.71 | John Buzhardt | 96.3 | CHA |
_