| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dean Chance | ANA | 10.69 | 196408221_ANA_CLE |
| Don Drysdale | LAN | 6.62 | 196408220_CIN_LAN |
| Jim Bunning | PHI | 6.48 | 196408230_PIT_PHI |
| Juan Pizarro | CHA | 5.71 | 196408210_BAL_CHA |
| Jim Bouton | NYA | 2.83 | 196408230_NYA_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Warren Spahn | ATL | -3.39 | 196408230_ATL_HOU |
| Bill Monbouquette | BOS | -3.36 | 196408221_NYA_BOS |
| Dick Donovan | CLE | -1.98 | 196408222_ANA_CLE |
| Orlando Pena | OAK | -1.61 | 196408220_OAK_TEX |
| Jack Fisher | NYN | -1.45 | 196408210_CHN_NYN |
Based on accumulated WAA for this season up to 1964-08-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.57 | Dean Chance | 204.3 | ANA |
| +002+ | 9.27 | Sandy Koufax | 223 | LAN |
| +006+ | 7.11 | Jim Bunning | 207.3 | PHI |
| +007+ | 6.64 | Juan Pizarro | 193 | CHA |
| +008+ | 6.58 | Chris Short | 151 | PHI |
| +009+ | 6.24 | Don Drysdale | 242.3 | LAN |
| +022+ | 4.96 | Whitey Ford | 181 | NYA |
| +023+ | 4.9 | Gary Peters | 212.3 | CHA |
| +026+ | 4.62 | Jim O'Toole | 158.3 | CIN |
| +028+ | 4.42 | Juan Marichal | 193.7 | SFN |
| +030+ | 4.35 | Jim Bouton | 217.7 | NYA |
| +035+ | 3.86 | Joe Horlen | 137 | CHA |
| +039+ | 3.65 | Bobby Bolin | 143.7 | SFN |
| +041+ | 3.35 | Bob Veale | 206.3 | PIT |
| +043+ | 3.32 | Bob Bruce | 151.3 | HOU |
| +055+ | 2.85 | Milt Pappas | 175 | BAL |
| +060+ | 2.77 | John Buzhardt | 139 | CHA |
| +061+ | 2.76 | Fred Newman | 145.7 | ANA |
| +071+ | 2.44 | Robin Roberts | 165 | BAL |
| +074+ | 2.35 | Bo Belinsky | 135.7 | ANA |
| +076+ | 2.32 | Wally Bunker | 151 | BAL |
| +078+ | 2.29 | Steve Ridzik | 101 | TEX |
| +080+ | 2.26 | Gaylord Perry | 134.3 | SFN |
| +084+ | 2.2 | Bob Miller | 108.7 | LAN |
| +087+ | 2.1 | Ron Herbel | 142.7 | SFN |
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