| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 14.21 | 196407300_LAN_NYN |
| Dean Chance | ANA | 7.34 | 196408010_BOS_ANA |
| Juan Pizarro | CHA | 4.16 | 196407310_CHA_TEX |
| Jim Bunning | PHI | 4.03 | 196408010_LAN_PHI |
| Bob Veale | PIT | 2.5 | 196407310_SFN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Lary | NYN | -2.36 | 196407311_HOU_NYN |
| Lee Stange | CLE | -1.78 | 196408010_DET_CLE |
| Ray Sadecki | SLN | -1.54 | 196407300_SLN_CHN |
| Bennie Daniels | TEX | -1.51 | 196407310_CHA_TEX |
| Orlando Pena | OAK | -1.47 | 196408010_BAL_OAK |
Based on accumulated WAA for this season up to 1964-08-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.63 | Sandy Koufax | 187.7 | LAN |
| +002+ | 7.44 | Dean Chance | 165.3 | ANA |
| +006+ | 5.74 | Don Drysdale | 205.3 | LAN |
| +008+ | 5.27 | Jim Bunning | 169.3 | PHI |
| +009+ | 5.21 | Juan Pizarro | 155.7 | CHA |
| +012+ | 4.92 | Chris Short | 118.7 | PHI |
| +015+ | 4.81 | Whitey Ford | 166 | NYA |
| +017+ | 4.66 | Juan Marichal | 193.7 | SFN |
| +020+ | 4.51 | Gary Peters | 169.7 | CHA |
| +031+ | 3.61 | Bob Bruce | 133.3 | HOU |
| +033+ | 3.42 | Jim O'Toole | 129 | CIN |
| +034+ | 3.34 | Joe Horlen | 106.3 | CHA |
| +038+ | 3.16 | Dick Ellsworth | 181 | CHN |
| +040+ | 3.14 | Jim Bouton | 171.3 | NYA |
| +045+ | 2.92 | Bob Veale | 170 | PIT |
| +046+ | 2.82 | Robin Roberts | 143 | BAL |
| +051+ | 2.68 | Wally Bunker | 126.3 | BAL |
| +053+ | 2.56 | Jack Kralick | 134.7 | CLE |
| +054+ | 2.55 | Ron Herbel | 118.3 | SFN |
| +058+ | 2.47 | Bo Belinsky | 121.3 | ANA |
| +059+ | 2.44 | Fred Newman | 111 | ANA |
| +060+ | 2.42 | Bobby Bolin | 106.7 | SFN |
| +064+ | 2.37 | Hank Fischer | 124.7 | ATL |
| +068+ | 2.26 | Jim Maloney | 150 | CIN |
| +074+ | 2.09 | John Buzhardt | 116.3 | CHA |
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