| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 13.7 | 196408080_LAN_ATL |
| Whitey Ford | NYA | 7.42 | 196408080_BAL_NYA |
| Chris Short | PHI | 4.41 | 196408060_HOU_PHI |
| Dick Ellsworth | CHN | 1.94 | 196408060_CHN_SLN |
| Bob Veale | PIT | 1.8 | 196408080_CHN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Phil Regan | DET | -2.37 | 196408070_OAK_DET |
| Mudcat Grant | MIN | -1.71 | 196408080_MIN_CLE |
| Al Jackson | NYN | -1.6 | 196408070_NYN_PHI |
| Dave Morehead | BOS | -1.54 | 196408080_BOS_CHA |
| Dick Donovan | CLE | -1.41 | 196408080_MIN_CLE |
Based on accumulated WAA for this season up to 1964-08-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.15 | Sandy Koufax | 205 | LAN |
| +002+ | 7.84 | Dean Chance | 171.3 | ANA |
| +006+ | 5.81 | Don Drysdale | 212.3 | LAN |
| +007+ | 5.73 | Juan Pizarro | 168.7 | CHA |
| +008+ | 5.54 | Jim Bunning | 176.3 | PHI |
| +009+ | 5.48 | Whitey Ford | 175 | NYA |
| +017+ | 5.01 | Chris Short | 125.7 | PHI |
| +020+ | 4.49 | Juan Marichal | 193.7 | SFN |
| +024+ | 4.26 | Gary Peters | 178.7 | CHA |
| +027+ | 4.17 | Jim Bouton | 187.3 | NYA |
| +031+ | 3.84 | Joe Horlen | 116 | CHA |
| +034+ | 3.68 | Jim O'Toole | 138 | CIN |
| +036+ | 3.49 | Bob Bruce | 142.3 | HOU |
| +040+ | 3.33 | Ron Herbel | 129 | SFN |
| +042+ | 3.28 | Gaylord Perry | 115.7 | SFN |
| +046+ | 3.11 | Bob Veale | 186 | PIT |
| +047+ | 3.02 | Wally Bunker | 133.7 | BAL |
| +048+ | 2.97 | Dick Ellsworth | 187 | CHN |
| +050+ | 2.9 | Fred Newman | 127.3 | ANA |
| +054+ | 2.84 | Jack Kralick | 141.7 | CLE |
| +060+ | 2.51 | Bobby Bolin | 114 | SFN |
| +071+ | 2.21 | Bo Belinsky | 126.7 | ANA |
| +078+ | 2.07 | Jim Maloney | 158.7 | CIN |
| +079+ | 2.07 | Don Lee | 77.3 | ANA |
| +081+ | 2.01 | Bob Miller | 95.3 | LAN |
_