| Starter | Tm | Tier | Game |
|---|---|---|---|
| Whitey Ford | NYA | 7.72 | 196405090_NYA_CLE |
| Don Drysdale | LAN | 5.58 | 196405100_LAN_SFN |
| Warren Spahn | ATL | 5.34 | 196405101_ATL_PIT |
| Bob Friend | PIT | 5.05 | 196405101_ATL_PIT |
| Juan Marichal | SFN | 4.79 | 196405080_LAN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Fisher | NYN | -3.65 | 196405080_SLN_NYN |
| Jim Owens | HOU | -3.47 | 196405102_HOU_CHN |
| Glen Hobbie | CHN | -2.33 | 196405102_HOU_CHN |
| Vern Law | PIT | -0.84 | 196405090_ATL_PIT |
| Ed Rakow | DET | -0.78 | 196405102_BAL_DET |
Based on accumulated WAA for this season up to 1964-05-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 2.27 | Dave Wickersham | 43 | DET |
| +004+ | 2.18 | Jack Kralick | 39.3 | CLE |
| +006+ | 1.94 | Robin Roberts | 43 | BAL |
| +008+ | 1.91 | Bob Gibson | 46 | SLN |
| +009+ | 1.9 | Whitey Ford | 50 | NYA |
| +011+ | 1.85 | Juan Marichal | 49 | SFN |
| +016+ | 1.64 | Jim Maloney | 37 | CIN |
| +019+ | 1.56 | Don Drysdale | 56.7 | LAN |
| +022+ | 1.31 | Wally Bunker | 18 | BAL |
| +023+ | 1.29 | Juan Pizarro | 21.7 | CHA |
| +024+ | 1.27 | Phil Ortega | 34 | LAN |
| XXXXX | 1.24 | Gary Peters | 37.7 | CHA |
| XXXXX | 1.2 | Jim Bunning | 36.7 | PHI |
| XXXXX | 1.15 | Roger Craig | 39.7 | SLN |
| XXXXX | 1.11 | Tony Cloninger | 26.7 | ATL |
| XXXXX | 1.07 | Galen Cisco | 16.3 | NYN |
| XXXXX | 1.02 | Chris Short | 13.7 | PHI |
| XXXXX | 0.98 | Turk Farrell | 33 | HOU |
| XXXXX | 0.93 | Dean Chance | 20.7 | ANA |
| XXXXX | 0.89 | Jim Bouton | 38 | NYA |
| XXXXX | 0.88 | Al Downing | 23 | NYA |
| XXXXX | 0.88 | Jack Lamabe | 38.7 | BOS |
| XXXXX | 0.86 | Ray Washburn | 14.7 | SLN |
| XXXXX | 0.85 | Sandy Koufax | 34 | LAN |
| XXXXX | 0.78 | Bob Lee | 28.7 | ANA |
_