| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 12.41 | 196407140_LAN_SLN |
| Juan Marichal | SFN | 6.29 | 196407140_SFN_ATL |
| Chris Short | PHI | 4.65 | 196407121_ATL_PHI |
| Juan Pizarro | CHA | 4.55 | 196407140_CHA_BOS |
| Jim Maloney | CIN | 2.22 | 196407142_HOU_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Moe Drabowsky | OAK | -3.64 | 196407122_CHA_OAK |
| Frank Lary | NYN | -2.15 | 196407122_CIN_NYN |
| Bill Monbouquette | BOS | -2.09 | 196407130_BOS_TEX |
| Bennie Daniels | TEX | -1.22 | 196407121_BOS_TEX |
| Art Mahaffey | PHI | -0.78 | 196407122_ATL_PHI |
Based on accumulated WAA for this season up to 1964-07-14.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 5.66 | Sandy Koufax | 153.7 | LAN |
| +006+ | 4.86 | Jim Bunning | 143.7 | PHI |
| +007+ | 4.67 | Don Drysdale | 175 | LAN |
| +009+ | 4.43 | Dean Chance | 120.3 | ANA |
| +010+ | 4.37 | Whitey Ford | 150 | NYA |
| +011+ | 4.07 | Juan Pizarro | 131.7 | CHA |
| +013+ | 3.88 | Chris Short | 95 | PHI |
| +018+ | 3.62 | Bob Gibson | 132.3 | SLN |
| +020+ | 3.54 | Juan Marichal | 165.7 | SFN |
| +026+ | 3.3 | Joe Horlen | 93 | CHA |
| +030+ | 3.24 | Jack Kralick | 126.7 | CLE |
| +033+ | 3.01 | Gary Peters | 134 | CHA |
| +036+ | 2.87 | Ron Herbel | 101.3 | SFN |
| +042+ | 2.67 | Roger Craig | 106.7 | SLN |
| +043+ | 2.52 | Jim Maloney | 132 | CIN |
| +047+ | 2.39 | Gaylord Perry | 75 | SFN |
| +056+ | 2.13 | Dick Ellsworth | 158.7 | CHN |
| +057+ | 2.12 | Joe Sparma | 32.7 | DET |
| +058+ | 2.1 | Bobby Bolin | 84.3 | SFN |
| +060+ | 2.09 | Joe Gibbon | 78.7 | PIT |
| +061+ | 2.08 | Robin Roberts | 121 | BAL |
| +064+ | 1.97 | Dave Wickersham | 148.3 | DET |
| +065+ | 1.95 | Bob Bruce | 101.7 | HOU |
| +073+ | 1.83 | Bo Belinsky | 99.3 | ANA |
| +074+ | 1.81 | Fred Talbot | 41 | CHA |
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