| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 10.18 | 196407010_PHI_LAN |
| Whitey Ford | NYA | 9.94 | 196407010_OAK_NYA |
| Juan Marichal | SFN | 4.87 | 196407010_PIT_SFN |
| Dean Chance | ANA | 4.44 | 196407010_ANA_BAL |
| Juan Pizarro | CHA | 4.12 | 196406300_CHA_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Moe Drabowsky | OAK | -3.46 | 196406300_OAK_BOS |
| Mudcat Grant | MIN | -3.22 | 196407010_MIN_BOS |
| Jack Fisher | NYN | -2.25 | 196406290_NYN_SFN |
| Phil Regan | DET | -2.01 | 196406290_DET_TEX |
| Dave Morehead | BOS | -1.33 | 196406300_OAK_BOS |
Based on accumulated WAA for this season up to 1964-07-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 5 | Sandy Koufax | 131.7 | LAN |
| +004+ | 4.9 | Don Drysdale | 153.7 | LAN |
| +006+ | 4.75 | Whitey Ford | 140.3 | NYA |
| +007+ | 4.3 | Jim Bunning | 124.7 | PHI |
| +009+ | 4.13 | Dean Chance | 109.7 | ANA |
| +010+ | 4.08 | Chris Short | 85 | PHI |
| +015+ | 3.67 | Juan Marichal | 143.3 | SFN |
| +018+ | 3.18 | Juan Pizarro | 106.7 | CHA |
| +021+ | 3.09 | Bob Gibson | 116.3 | SLN |
| +024+ | 2.92 | Ron Herbel | 85 | SFN |
| +027+ | 2.72 | Dick Ellsworth | 144.7 | CHN |
| +030+ | 2.57 | Gaylord Perry | 60 | SFN |
| +031+ | 2.56 | Gary Peters | 111.7 | CHA |
| +034+ | 2.51 | Robin Roberts | 110.3 | BAL |
| +040+ | 2.33 | Jim Maloney | 108 | CIN |
| +043+ | 2.27 | Jack Kralick | 109.7 | CLE |
| +051+ | 2.02 | Roger Craig | 89.3 | SLN |
| +055+ | 1.97 | Dave Wickersham | 125.3 | DET |
| +059+ | 1.92 | Claude Osteen | 111.3 | TEX |
| +064+ | 1.78 | Jim Bouton | 121.7 | NYA |
| +067+ | 1.75 | Joe Horlen | 75 | CHA |
| +072+ | 1.64 | Joe Gibbon | 65.7 | PIT |
| +075+ | 1.61 | Tony Cloninger | 99.3 | ATL |
| +079+ | 1.56 | Curt Simmons | 115.7 | SLN |
| +082+ | 1.54 | Bob Bruce | 89.7 | HOU |
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