| Starter | Tm | Tier | Game |
|---|---|---|---|
| Don Drysdale | LAN | 11.59 | 196408010_LAN_PHI |
| Dean Chance | ANA | 7.34 | 196408010_BOS_ANA |
| Jim Bunning | PHI | 4.03 | 196408010_LAN_PHI |
| Jim Bouton | NYA | 2.74 | 196408020_NYA_MIN |
| Robin Roberts | BAL | 1.88 | 196408020_BAL_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Al Jackson | NYN | -2.09 | 196408010_HOU_NYN |
| Dave Morehead | BOS | -2.06 | 196408020_BOS_ANA |
| Lee Stange | CLE | -1.78 | 196408010_DET_CLE |
| Orlando Pena | OAK | -1.47 | 196408010_BAL_OAK |
| Denny Lemaster | ATL | -0.92 | 196408010_ATL_CHN |
Based on accumulated WAA for this season up to 1964-08-03.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.58 | Sandy Koufax | 187.7 | LAN |
| +002+ | 7.39 | Dean Chance | 165.3 | ANA |
| +006+ | 5.69 | Don Drysdale | 205.3 | LAN |
| +008+ | 5.22 | Jim Bunning | 169.3 | PHI |
| +009+ | 5.17 | Juan Pizarro | 155.7 | CHA |
| +015+ | 4.89 | Chris Short | 118.7 | PHI |
| +016+ | 4.77 | Whitey Ford | 166 | NYA |
| +018+ | 4.61 | Juan Marichal | 193.7 | SFN |
| +020+ | 4.46 | Gary Peters | 169.7 | CHA |
| +026+ | 3.83 | Jim Bouton | 180.3 | NYA |
| +029+ | 3.72 | Joe Horlen | 113.7 | CHA |
| +032+ | 3.67 | Bob Bruce | 134.3 | HOU |
| +035+ | 3.39 | Jim O'Toole | 129 | CIN |
| +040+ | 3.11 | Dick Ellsworth | 181 | CHN |
| +044+ | 2.95 | Fred Newman | 120 | ANA |
| +047+ | 2.88 | Jack Kralick | 141.7 | CLE |
| +049+ | 2.86 | Bob Veale | 170 | PIT |
| +053+ | 2.67 | Ron Herbel | 120 | SFN |
| +055+ | 2.64 | Wally Bunker | 126.3 | BAL |
| +058+ | 2.58 | Bobby Bolin | 114 | SFN |
| +066+ | 2.25 | Bo Belinsky | 126.7 | ANA |
| +074+ | 2.06 | John Buzhardt | 116.3 | CHA |
| +076+ | 1.99 | Robin Roberts | 146 | BAL |
| +077+ | 1.98 | Gaylord Perry | 96.7 | SFN |
| +081+ | 1.89 | Bob Miller | 93.7 | LAN |
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