| Starter | Tm | Tier | Game |
|---|---|---|---|
| Whitey Ford | NYA | 9.36 | 196405260_CLE_NYA |
| Don Drysdale | LAN | 8.02 | 196405260_LAN_CIN |
| Juan Marichal | SFN | 5.72 | 196405270_SFN_SLN |
| Juan Pizarro | CHA | 5.59 | 196405280_CHA_OAK |
| Bob Friend | PIT | 3.24 | 196405270_PHI_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Fisher | NYN | -3.77 | 196405260_NYN_CHN |
| Mudcat Grant | CLE | -1.86 | 196405260_CLE_NYA |
| Bennie Daniels | TEX | -1.71 | 196405260_TEX_BOS |
| Art Mahaffey | PHI | -1.48 | 196405270_PHI_PIT |
| Phil Regan | DET | -1.26 | 196405270_DET_BAL |
Based on accumulated WAA for this season up to 1964-05-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 2.95 | Juan Pizarro | 50.7 | CHA |
| +004+ | 2.85 | Whitey Ford | 76.3 | NYA |
| +006+ | 2.67 | Robin Roberts | 67 | BAL |
| +008+ | 2.58 | Juan Marichal | 81.3 | SFN |
| +010+ | 2.47 | Chris Short | 33.3 | PHI |
| +012+ | 2.38 | Turk Farrell | 67.3 | HOU |
| +014+ | 2.32 | Bob Gibson | 66 | SLN |
| +015+ | 2.24 | Curt Simmons | 72.3 | SLN |
| +016+ | 2.23 | Jim Bunning | 59.7 | PHI |
| +017+ | 2.23 | Phil Ortega | 64.3 | LAN |
| +018+ | 2.21 | Don Drysdale | 85 | LAN |
| +020+ | 2.14 | Jack Kralick | 60.3 | CLE |
| +023+ | 2.09 | Jim Maloney | 68.3 | CIN |
| +027+ | 1.97 | Dennis Bennett | 73.7 | PHI |
| +028+ | 1.88 | Bob Bruce | 46.7 | HOU |
| +033+ | 1.75 | Wally Bunker | 41 | BAL |
| +034+ | 1.74 | Ken Johnson | 74.7 | HOU |
| +036+ | 1.65 | Bob Lee | 44 | ANA |
| +040+ | 1.52 | Dean Chance | 40 | ANA |
| +042+ | 1.46 | Dave Wickersham | 64.3 | DET |
| +044+ | 1.42 | Sandy Koufax | 64.7 | LAN |
| +050+ | 1.37 | Hank Fischer | 59 | ATL |
| +052+ | 1.33 | John Buzhardt | 39.3 | CHA |
| XXXXX | 1.22 | Galen Cisco | 42.3 | NYN |
| XXXXX | 1.14 | Willie Smith | 25.7 | ANA |
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