| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 11.5 | 196407220_HOU_LAN |
| Dean Chance | ANA | 6.35 | 196407230_ANA_CHA |
| Jim Bunning | PHI | 4.52 | 196407230_PHI_ATL |
| Gary Peters | CHA | 3.75 | 196407212_ANA_CHA |
| Robin Roberts | BAL | 2.45 | 196407230_CLE_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Morehead | BOS | -2.91 | 196407230_DET_BOS |
| Tracy Stallard | NYN | -2.47 | 196407210_NYN_CIN |
| Ray Sadecki | SLN | -1.82 | 196407210_PIT_SLN |
| Lee Stange | CLE | -1.57 | 196407211_CLE_BAL |
| Art Mahaffey | PHI | -1 | 196407210_PHI_ATL |
Based on accumulated WAA for this season up to 1964-07-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.02 | Sandy Koufax | 171.7 | LAN |
| +003+ | 6.32 | Dean Chance | 145.3 | ANA |
| +004+ | 5.87 | Don Drysdale | 193.3 | LAN |
| +008+ | 4.9 | Whitey Ford | 164 | NYA |
| +011+ | 4.68 | Juan Pizarro | 141.7 | CHA |
| +012+ | 4.58 | Jim Bunning | 159 | PHI |
| +019+ | 4 | Juan Marichal | 174.7 | SFN |
| +022+ | 3.93 | Chris Short | 102.3 | PHI |
| +026+ | 3.66 | Joe Horlen | 100 | CHA |
| +029+ | 3.47 | Gary Peters | 149.7 | CHA |
| +030+ | 3.44 | Robin Roberts | 139 | BAL |
| +034+ | 3.05 | Bob Bruce | 118.3 | HOU |
| +037+ | 3 | Dick Ellsworth | 167.7 | CHN |
| +038+ | 3 | Jack Kralick | 130.7 | CLE |
| +044+ | 2.76 | Ron Herbel | 111.7 | SFN |
| +047+ | 2.64 | Gaylord Perry | 90 | SFN |
| +048+ | 2.55 | Bob Gibson | 149 | SLN |
| +052+ | 2.43 | Fred Newman | 104 | ANA |
| +055+ | 2.33 | Bob Veale | 154.3 | PIT |
| +058+ | 2.28 | Jim O'Toole | 114 | CIN |
| +061+ | 2.21 | Hank Fischer | 108.7 | ATL |
| +062+ | 2.1 | Turk Farrell | 146.3 | HOU |
| +063+ | 2.1 | Bobby Bolin | 98.7 | SFN |
| +064+ | 2.08 | Bo Belinsky | 107.3 | ANA |
| +073+ | 1.95 | Jim Bouton | 153.3 | NYA |
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