| Starter | Tm | Tier | Game |
|---|---|---|---|
| Whitey Ford | NYA | 13.49 | 196406240_NYA_BAL |
| Don Drysdale | LAN | 9.26 | 196406240_LAN_ATL |
| Jim Maloney | CIN | 3.3 | 196406231_SFN_CIN |
| Juan Marichal | SFN | 3.27 | 196406231_SFN_CIN |
| Robin Roberts | BAL | 3.04 | 196406240_NYA_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bennie Daniels | TEX | -3.23 | 196406230_TEX_ANA |
| Ray Sadecki | SLN | -1.42 | 196406240_HOU_SLN |
| Barry Latman | ANA | -1.38 | 196406220_TEX_ANA |
| Galen Cisco | NYN | -1.2 | 196406240_PIT_NYN |
| John O'Donoghue | OAK | -0.91 | 196406231_DET_OAK |
Based on accumulated WAA for this season up to 1964-06-24.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 5.27 | Whitey Ford | 130.3 | NYA |
| +003+ | 4.48 | Don Drysdale | 145.7 | LAN |
| +004+ | 4.19 | Sandy Koufax | 113.7 | LAN |
| +006+ | 3.98 | Jim Bunning | 108.7 | PHI |
| +008+ | 3.68 | Dean Chance | 94.3 | ANA |
| +011+ | 3.43 | Bob Gibson | 105 | SLN |
| +014+ | 3.3 | Chris Short | 76 | PHI |
| +018+ | 3.22 | Juan Pizarro | 89.7 | CHA |
| +023+ | 2.76 | Jack Kralick | 98 | CLE |
| +028+ | 2.59 | Jim Maloney | 101 | CIN |
| +031+ | 2.49 | Juan Marichal | 125.3 | SFN |
| +032+ | 2.47 | Robin Roberts | 101.3 | BAL |
| +037+ | 2.32 | Ron Herbel | 77 | SFN |
| +043+ | 2.1 | Gary Peters | 103.7 | CHA |
| +044+ | 2.1 | Roger Craig | 72.7 | SLN |
| +046+ | 2.02 | Hank Fischer | 84 | ATL |
| +048+ | 1.97 | Vern Law | 93.7 | PIT |
| +052+ | 1.89 | Dick Ellsworth | 126 | CHN |
| +056+ | 1.86 | Turk Farrell | 98 | HOU |
| +057+ | 1.86 | Claude Osteen | 102.3 | TEX |
| +060+ | 1.71 | Ken Johnson | 106 | HOU |
| +064+ | 1.57 | Steve Hamilton | 37.7 | NYA |
| +072+ | 1.45 | Fred Newman | 67.7 | ANA |
| +077+ | 1.36 | Bobby Bolin | 65.3 | SFN |
| +078+ | 1.35 | Bob Shaw | 55 | SFN |
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