| Starter | Tm | Tier | Game |
|---|---|---|---|
| Don Drysdale | LAN | 9.09 | 196406110_SLN_LAN |
| Juan Marichal | SFN | 5.65 | 196406090_SLN_SFN |
| Robin Roberts | BAL | 5.08 | 196406100_BAL_CHA |
| Juan Pizarro | CHA | 4.89 | 196406090_BAL_CHA |
| Bob Gibson | SLN | 3.77 | 196406101_SLN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Glen Hobbie | SLN | -3.53 | 196406102_SLN_SFN |
| Jack Fisher | NYN | -3.06 | 196406100_CHN_NYN |
| Bennie Daniels | TEX | -2.48 | 196406100_OAK_TEX |
| Ted Bowsfield | OAK | -2.04 | 196406100_OAK_TEX |
| Earl Wilson | BOS | -0.95 | 196406090_NYA_BOS |
Based on accumulated WAA for this season up to 1964-06-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 4.23 | Don Drysdale | 122.3 | LAN |
| +003+ | 4.23 | Whitey Ford | 101.3 | NYA |
| +004+ | 3.95 | Robin Roberts | 90 | BAL |
| +006+ | 3.41 | Chris Short | 58 | PHI |
| +008+ | 3.21 | Jim Bunning | 85.7 | PHI |
| +009+ | 3.19 | Bob Gibson | 91 | SLN |
| +011+ | 3.02 | Juan Marichal | 105.3 | SFN |
| +014+ | 2.9 | Juan Pizarro | 70.7 | CHA |
| +018+ | 2.64 | Dean Chance | 73 | ANA |
| +023+ | 2.48 | Sandy Koufax | 89.7 | LAN |
| +024+ | 2.46 | Jack Kralick | 84.3 | CLE |
| +029+ | 2.18 | Jim Maloney | 82 | CIN |
| +036+ | 2.02 | Dennis Bennett | 89 | PHI |
| +037+ | 2.01 | Turk Farrell | 80.7 | HOU |
| +042+ | 1.8 | Roger Craig | 65 | SLN |
| +043+ | 1.79 | Hank Fischer | 77 | ATL |
| +044+ | 1.75 | John Buzhardt | 59.7 | CHA |
| +053+ | 1.51 | Ken Johnson | 84.7 | HOU |
| +057+ | 1.48 | Ron Herbel | 52.3 | SFN |
| +058+ | 1.48 | Galen Cisco | 66.3 | NYN |
| +060+ | 1.37 | Steve Blass | 40.7 | PIT |
| +065+ | 1.26 | Joe Moeller | 63.7 | LAN |
| XXXXX | 1.18 | Jim Bouton | 89.7 | NYA |
| XXXXX | 1.14 | Gaylord Perry | 37.7 | SFN |
| XXXXX | 1.1 | Claude Osteen | 89.7 | TEX |
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