| Starter | Tm | Tier | Game |
|---|---|---|---|
| Whitey Ford | NYA | 11.57 | 196406030_NYA_MIN |
| Don Drysdale | LAN | 7.4 | 196406030_LAN_PHI |
| Juan Marichal | SFN | 5.42 | 196406050_SFN_PHI |
| Juan Pizarro | CHA | 4.67 | 196406050_DET_CHA |
| Robin Roberts | BAL | 3.76 | 196406030_BAL_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Glen Hobbie | SLN | -4.3 | 196406050_SLN_CIN |
| Moe Drabowsky | OAK | -1.78 | 196406050_BOS_OAK |
| Al Jackson | NYN | -1.04 | 196406040_HOU_NYN |
| Fred Newman | ANA | -0.73 | 196406031_BOS_ANA |
| Dick Donovan | CLE | -0.69 | 196406040_CHA_CLE |
Based on accumulated WAA for this season up to 1964-06-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 4.36 | Whitey Ford | 94.3 | NYA |
| +003+ | 3.6 | Robin Roberts | 84 | BAL |
| +006+ | 3.16 | Jim Bunning | 77.3 | PHI |
| +007+ | 3.08 | Bob Gibson | 83 | SLN |
| +008+ | 3.08 | Don Drysdale | 104.3 | LAN |
| +009+ | 2.92 | Juan Pizarro | 63.3 | CHA |
| +011+ | 2.87 | Chris Short | 49 | PHI |
| +013+ | 2.84 | Jack Kralick | 69.3 | CLE |
| +018+ | 2.47 | Juan Marichal | 96.3 | SFN |
| +023+ | 2.24 | Bob Lee | 51.7 | ANA |
| +026+ | 2.17 | Turk Farrell | 72.7 | HOU |
| +024+ | 2.17 | Hank Fischer | 74.3 | ATL |
| +028+ | 2.11 | Galen Cisco | 60.3 | NYN |
| +031+ | 2.03 | Sandy Koufax | 80.7 | LAN |
| +032+ | 2.01 | Jim Maloney | 75 | CIN |
| +037+ | 1.87 | Dennis Bennett | 82 | PHI |
| +039+ | 1.82 | John Buzhardt | 55.3 | CHA |
| +041+ | 1.76 | Dean Chance | 51 | ANA |
| +043+ | 1.71 | Roger Craig | 62 | SLN |
| +045+ | 1.7 | Phil Ortega | 66 | LAN |
| +047+ | 1.61 | Ken Johnson | 81 | HOU |
| +048+ | 1.59 | Bob Bruce | 51 | HOU |
| +049+ | 1.58 | Curt Simmons | 77.7 | SLN |
| +054+ | 1.42 | Jim Duckworth | 26.3 | TEX |
| +060+ | 1.32 | Wally Bunker | 46.3 | BAL |
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