| Starter | Tm | Tier | Game |
|---|---|---|---|
| Don Drysdale | LAN | 9.97 | 196407280_LAN_NYN |
| Dean Chance | ANA | 6.36 | 196407280_NYA_ANA |
| Juan Marichal | SFN | 5.21 | 196407290_SFN_PHI |
| Jim Bunning | PHI | 3.13 | 196407280_SFN_PHI |
| Robin Roberts | BAL | 2.92 | 196407280_BAL_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Morehead | BOS | -2.29 | 196407280_BOS_OAK |
| Orlando Pena | OAK | -1.99 | 196407280_BOS_OAK |
| Jack Fisher | NYN | -1.42 | 196407280_LAN_NYN |
| Mudcat Grant | MIN | -1.3 | 196407290_BAL_MIN |
| Buster Narum | TEX | -0.72 | 196407290_CLE_TEX |
Based on accumulated WAA for this season up to 1964-07-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.6 | Sandy Koufax | 180.7 | LAN |
| +002+ | 6.86 | Dean Chance | 156.3 | ANA |
| +004+ | 6.66 | Don Drysdale | 202.3 | LAN |
| +008+ | 5.3 | Jim Bunning | 167.3 | PHI |
| +011+ | 4.76 | Whitey Ford | 166 | NYA |
| +014+ | 4.59 | Juan Marichal | 193.7 | SFN |
| +016+ | 4.49 | Chris Short | 111.3 | PHI |
| +017+ | 4.43 | Juan Pizarro | 146.7 | CHA |
| +028+ | 3.73 | Gary Peters | 160.7 | CHA |
| +030+ | 3.43 | Dick Ellsworth | 174.7 | CHN |
| +031+ | 3.39 | Jim O'Toole | 129 | CIN |
| +032+ | 3.33 | Joe Horlen | 106.3 | CHA |
| +037+ | 3.09 | Jim Bouton | 171.3 | NYA |
| +040+ | 3.05 | Bob Bruce | 125.3 | HOU |
| +042+ | 3.05 | Ron Herbel | 114.7 | SFN |
| +045+ | 2.95 | Jack Kralick | 132.3 | CLE |
| +046+ | 2.95 | Bob Veale | 163.3 | PIT |
| +051+ | 2.78 | Robin Roberts | 143 | BAL |
| +052+ | 2.76 | Gaylord Perry | 91 | SFN |
| +053+ | 2.61 | Bobby Bolin | 104.3 | SFN |
| +055+ | 2.49 | John Buzhardt | 111.3 | CHA |
| +058+ | 2.44 | Bo Belinsky | 121.3 | ANA |
| +060+ | 2.41 | Fred Newman | 111 | ANA |
| +063+ | 2.35 | Hank Fischer | 124.7 | ATL |
| +071+ | 2.23 | Jim Maloney | 150 | CIN |
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