| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 6.13 | 196406080_CIN_LAN |
| Juan Marichal | SFN | 5.65 | 196406090_SLN_SFN |
| Robin Roberts | BAL | 5.08 | 196406100_BAL_CHA |
| Juan Pizarro | CHA | 4.89 | 196406090_BAL_CHA |
| Bob Gibson | SLN | 3.77 | 196406101_SLN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Glen Hobbie | SLN | -3.53 | 196406102_SLN_SFN |
| Jack Fisher | NYN | -3.06 | 196406100_CHN_NYN |
| Moe Drabowsky | OAK | -2.97 | 196406080_OAK_TEX |
| Bennie Daniels | TEX | -2.48 | 196406100_OAK_TEX |
| Barry Latman | ANA | -1.51 | 196406080_ANA_CLE |
Based on accumulated WAA for this season up to 1964-06-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 4.23 | Whitey Ford | 101.3 | NYA |
| +003+ | 3.95 | Robin Roberts | 90 | BAL |
| +004+ | 3.51 | Don Drysdale | 113.3 | LAN |
| +006+ | 3.41 | Chris Short | 58 | PHI |
| +007+ | 3.21 | Jim Bunning | 85.7 | PHI |
| +008+ | 3.18 | Bob Gibson | 91 | SLN |
| +011+ | 3.01 | Juan Marichal | 105.3 | SFN |
| +013+ | 2.91 | Juan Pizarro | 70.7 | CHA |
| +014+ | 2.86 | Dean Chance | 65 | ANA |
| +022+ | 2.56 | Jack Kralick | 77.3 | CLE |
| +024+ | 2.48 | Sandy Koufax | 89.7 | LAN |
| +027+ | 2.17 | Jim Maloney | 82 | CIN |
| +033+ | 2.03 | Dennis Bennett | 89 | PHI |
| +035+ | 2.02 | Turk Farrell | 80.7 | HOU |
| +040+ | 1.91 | Roger Craig | 64 | SLN |
| +043+ | 1.79 | Hank Fischer | 77 | ATL |
| +044+ | 1.76 | John Buzhardt | 59.7 | CHA |
| +045+ | 1.75 | Bob Lee | 56.7 | ANA |
| +054+ | 1.52 | Ken Johnson | 84.7 | HOU |
| +056+ | 1.48 | Galen Cisco | 66.3 | NYN |
| +057+ | 1.48 | Ron Herbel | 52.3 | SFN |
| +060+ | 1.38 | Steve Blass | 40.7 | PIT |
| +061+ | 1.29 | Jim Bouton | 80.7 | NYA |
| +065+ | 1.27 | Bob Bruce | 57 | HOU |
| +066+ | 1.26 | Joe Moeller | 63.7 | LAN |
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