| Starter | Tm | Tier | Game |
|---|---|---|---|
| Whitey Ford | NYA | 8.28 | 196405130_NYA_DET |
| Juan Marichal | SFN | 6.4 | 196405120_SFN_HOU |
| Juan Pizarro | CHA | 2.77 | 196405130_CHA_MIN |
| Turk Farrell | HOU | 2.21 | 196405110_SFN_HOU |
| Jim Maloney | CIN | 1.99 | 196405120_CIN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Fisher | NYN | -3.67 | 196405130_ATL_NYN |
| Bennie Daniels | TEX | -3.1 | 196405110_BAL_TEX |
| Ray Sadecki | SLN | -2.8 | 196405110_SLN_PHI |
| Mike McCormick | BAL | -2.17 | 196405110_BAL_TEX |
| Mudcat Grant | CLE | -1.76 | 196405120_BOS_CLE |
Based on accumulated WAA for this season up to 1964-05-13.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 2.58 | Juan Marichal | 57.7 | SFN |
| +004+ | 2.2 | Jack Kralick | 39.3 | CLE |
| +007+ | 2.11 | Dave Wickersham | 43 | DET |
| +008+ | 2.01 | Whitey Ford | 56 | NYA |
| +010+ | 1.91 | Robin Roberts | 43 | BAL |
| +012+ | 1.88 | Jim Maloney | 45 | CIN |
| +014+ | 1.85 | Juan Pizarro | 30.7 | CHA |
| +013+ | 1.85 | Bob Gibson | 46 | SLN |
| +021+ | 1.49 | Turk Farrell | 42 | HOU |
| +022+ | 1.49 | Don Drysdale | 56.7 | LAN |
| +025+ | 1.29 | Wally Bunker | 18 | BAL |
| XXXXX | 1.24 | Roger Craig | 41.3 | SLN |
| XXXXX | 1.23 | Phil Ortega | 34 | LAN |
| XXXXX | 1.2 | Gary Peters | 37.7 | CHA |
| XXXXX | 1.15 | Al Jackson | 50.3 | NYN |
| XXXXX | 1.14 | Jim Bunning | 36.7 | PHI |
| XXXXX | 1.11 | Hank Fischer | 41.3 | ATL |
| XXXXX | 1.06 | Ken Johnson | 51.7 | HOU |
| XXXXX | 1.05 | Chris Short | 14.3 | PHI |
| XXXXX | 1.04 | Galen Cisco | 16.3 | NYN |
| XXXXX | 0.9 | Jim Kaat | 45.3 | MIN |
| XXXXX | 0.84 | Ray Washburn | 14.7 | SLN |
| XXXXX | 0.82 | Joe Gibbon | 38.7 | PIT |
| XXXXX | 0.81 | Sandy Koufax | 34 | LAN |
| XXXXX | 0.81 | Al Downing | 23 | NYA |
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