| Starter | Tm | Tier | Game |
|---|---|---|---|
| Whitey Ford | NYA | 12.06 | 196406070_NYA_ANA |
| Don Drysdale | LAN | 8.17 | 196406071_LAN_NYN |
| Juan Marichal | SFN | 5.42 | 196406050_SFN_PHI |
| Juan Pizarro | CHA | 4.67 | 196406050_DET_CHA |
| Bob Friend | PIT | 2.83 | 196406050_HOU_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Glen Hobbie | SLN | -4.3 | 196406050_SLN_CIN |
| Jack Fisher | NYN | -2.23 | 196406060_LAN_NYN |
| Bennie Daniels | TEX | -2.07 | 196406060_TEX_CLE |
| Moe Drabowsky | OAK | -1.78 | 196406050_BOS_OAK |
| Phil Regan | DET | -1.29 | 196406071_DET_CHA |
Based on accumulated WAA for this season up to 1964-06-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 4.21 | Whitey Ford | 101.3 | NYA |
| +003+ | 3.64 | Robin Roberts | 84 | BAL |
| +004+ | 3.54 | Don Drysdale | 113.3 | LAN |
| +007+ | 3.23 | Jim Bunning | 85.7 | PHI |
| +008+ | 3.13 | Bob Gibson | 83 | SLN |
| +010+ | 2.93 | Juan Pizarro | 63.3 | CHA |
| +011+ | 2.88 | Dean Chance | 65 | ANA |
| +013+ | 2.87 | Chris Short | 49 | PHI |
| +020+ | 2.59 | Jack Kralick | 77.3 | CLE |
| +021+ | 2.49 | Juan Marichal | 96.3 | SFN |
| +028+ | 2.2 | Turk Farrell | 72.7 | HOU |
| +029+ | 2.19 | Bob Lee | 51.7 | ANA |
| +030+ | 2.19 | Hank Fischer | 74.3 | ATL |
| +033+ | 2.08 | Galen Cisco | 60.3 | NYN |
| +034+ | 2.04 | Dennis Bennett | 89 | PHI |
| +035+ | 2.03 | Jim Maloney | 75 | CIN |
| +036+ | 1.99 | Sandy Koufax | 80.7 | LAN |
| +038+ | 1.92 | Roger Craig | 64 | SLN |
| +043+ | 1.78 | John Buzhardt | 59.7 | CHA |
| +048+ | 1.62 | Phil Ortega | 70.7 | LAN |
| +049+ | 1.54 | Ken Johnson | 84.7 | HOU |
| +059+ | 1.28 | Bob Bruce | 57 | HOU |
| +061+ | 1.28 | Jim Duckworth | 27.3 | TEX |
| +060+ | 1.28 | Jim Bouton | 80.7 | NYA |
| +064+ | 1.25 | Ron Herbel | 44.3 | SFN |
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