| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Shaw | SFN | 3.57 | 196405242_PIT_SFN |
| Jim Maloney | CIN | 3.3 | 196405230_CHN_CIN |
| Warren Spahn | ATL | 3.17 | 196405241_SLN_ATL |
| Bob Friend | PIT | 3.04 | 196405230_PIT_SFN |
| Robin Roberts | BAL | 2.83 | 196405241_MIN_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Owens | HOU | -2.07 | 196405231_NYN_HOU |
| Barry Latman | ANA | -1.39 | 196405250_MIN_ANA |
| Galen Cisco | NYN | -1.31 | 196405231_NYN_HOU |
| Aurelio Monteagudo | OAK | -1.17 | 196405230_OAK_BOS |
| Dave McNally | BAL | -0.73 | 196405230_MIN_BAL |
Based on accumulated WAA for this season up to 1964-05-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 2.98 | Jack Kralick | 55 | CLE |
| +004+ | 2.86 | Juan Pizarro | 46.7 | CHA |
| +005+ | 2.75 | Robin Roberts | 67 | BAL |
| +006+ | 2.65 | Chris Short | 32.7 | PHI |
| +007+ | 2.65 | Whitey Ford | 68 | NYA |
| +009+ | 2.59 | Don Drysdale | 77.7 | LAN |
| +014+ | 2.29 | Jim Bunning | 59.7 | PHI |
| +016+ | 2.13 | Bob Gibson | 58 | SLN |
| +017+ | 2.12 | Juan Marichal | 72.3 | SFN |
| +021+ | 2.09 | Turk Farrell | 58.3 | HOU |
| +022+ | 2.05 | Curt Simmons | 64.3 | SLN |
| +023+ | 2.02 | Dennis Bennett | 71 | PHI |
| +024+ | 2 | Phil Ortega | 58.3 | LAN |
| +026+ | 1.92 | Bob Bruce | 46.7 | HOU |
| +028+ | 1.89 | Jim Maloney | 57 | CIN |
| +034+ | 1.63 | Ken Johnson | 67.7 | HOU |
| +035+ | 1.61 | Dean Chance | 40 | ANA |
| +036+ | 1.57 | Bob Lee | 42 | ANA |
| +037+ | 1.52 | Dave Wickersham | 64.3 | DET |
| +039+ | 1.46 | Al Jackson | 63.3 | NYN |
| +043+ | 1.42 | Wally Bunker | 34 | BAL |
| +047+ | 1.37 | John Buzhardt | 39.3 | CHA |
| +051+ | 1.31 | Sandy Koufax | 57.7 | LAN |
| XXXXX | 1.16 | Tony Cloninger | 46.3 | ATL |
| XXXXX | 1.09 | Jim Duckworth | 21.7 | TEX |
_