| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 11.5 | 196407220_HOU_LAN |
| Gary Peters | CHA | 3.75 | 196407212_ANA_CHA |
| Bob Veale | PIT | 1.81 | 196407220_PIT_SLN |
| Jim Bouton | NYA | 1.37 | 196407210_TEX_NYA |
| Ron Herbel | SFN | 1.03 | 196407220_CHN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tracy Stallard | NYN | -2.47 | 196407210_NYN_CIN |
| Ray Sadecki | SLN | -1.82 | 196407210_PIT_SLN |
| Phil Regan | DET | -1.68 | 196407200_DET_BOS |
| Lee Stange | CLE | -1.57 | 196407211_CLE_BAL |
| Earl Wilson | BOS | -1.42 | 196407220_DET_BOS |
Based on accumulated WAA for this season up to 1964-07-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.98 | Sandy Koufax | 171.7 | LAN |
| +003+ | 5.93 | Dean Chance | 138.3 | ANA |
| +004+ | 5.82 | Don Drysdale | 193.3 | LAN |
| +005+ | 5.44 | Jim Bunning | 157 | PHI |
| +009+ | 4.86 | Whitey Ford | 164 | NYA |
| +012+ | 4.68 | Juan Pizarro | 141.7 | CHA |
| +019+ | 3.96 | Juan Marichal | 174.7 | SFN |
| +021+ | 3.92 | Chris Short | 102.3 | PHI |
| +024+ | 3.66 | Joe Horlen | 100 | CHA |
| +029+ | 3.47 | Gary Peters | 149.7 | CHA |
| +034+ | 3.02 | Bob Bruce | 118.3 | HOU |
| +036+ | 2.97 | Dick Ellsworth | 167.7 | CHN |
| +038+ | 2.95 | Jack Kralick | 130.7 | CLE |
| +040+ | 2.87 | Robin Roberts | 130 | BAL |
| +043+ | 2.73 | Ron Herbel | 111.7 | SFN |
| +047+ | 2.62 | Gaylord Perry | 90 | SFN |
| +050+ | 2.53 | Bob Gibson | 149 | SLN |
| +053+ | 2.42 | Fred Newman | 104 | ANA |
| +056+ | 2.3 | Bob Veale | 154.3 | PIT |
| +059+ | 2.26 | Jim O'Toole | 114 | CIN |
| +060+ | 2.2 | Hank Fischer | 108.7 | ATL |
| +063+ | 2.08 | Bobby Bolin | 98.7 | SFN |
| +064+ | 2.07 | Bo Belinsky | 107.3 | ANA |
| +073+ | 1.93 | Jim Maloney | 135 | CIN |
| +075+ | 1.91 | Jim Bouton | 153.3 | NYA |
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