| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 9.56 | 196307030_SLN_LAN |
| Bob Friend | PIT | 7.7 | 196307041_PIT_PHI |
| Juan Marichal | SFN | 3.51 | 196307020_ATL_SFN |
| Whitey Ford | NYA | 3.34 | 196307041_CHA_NYA |
| Juan Pizarro | CHA | 3.24 | 196307042_CHA_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jay Hook | NYN | -9.51 | 196307030_NYN_CHN |
| Vern Law | PIT | -1.56 | 196307020_PIT_PHI |
| Jack Fisher | SFN | -1.38 | 196307040_ATL_SFN |
| Bennie Daniels | TEX | -1.21 | 196307020_OAK_TEX |
| Paul Foytack | ANA | -0.96 | 196307020_ANA_BAL |
Based on accumulated WAA for this season up to 1963-07-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 5.38 | Sandy Koufax | 147.3 | LAN |
| +003+ | 5.17 | Bob Friend | 149.7 | PIT |
| +004+ | 4.84 | Jim O'Toole | 144 | CIN |
| +005+ | 4.81 | Dick Ellsworth | 140 | CHN |
| +008+ | 4.64 | Juan Marichal | 155.7 | SFN |
| +010+ | 4.39 | Larry Jackson | 145.3 | CHN |
| +014+ | 3.71 | Juan Pizarro | 130.3 | CHA |
| +019+ | 3.08 | Denny Lemaster | 112.7 | ATL |
| +023+ | 2.89 | Ray Culp | 123.3 | PHI |
| +025+ | 2.82 | Earl Wilson | 117.7 | BOS |
| +027+ | 2.79 | Steve Barber | 142.3 | BAL |
| +036+ | 2.46 | John Buzhardt | 117.3 | CHA |
| +038+ | 2.44 | Bobby Bolin | 57 | SFN |
| +040+ | 2.42 | Don Drysdale | 163 | LAN |
| +044+ | 2.32 | Camilo Pascual | 108.7 | MIN |
| +048+ | 2.25 | Jack Kralick | 105 | TOT |
| +049+ | 2.21 | Bob Buhl | 136.3 | CHN |
| +050+ | 2.16 | Carl Willey | 111.7 | NYN |
| +052+ | 2.11 | Don Schwall | 80.7 | PIT |
| +053+ | 2.04 | Ken McBride | 145 | ANA |
| +056+ | 1.98 | Billy O'Dell | 125 | SFN |
| +061+ | 1.91 | Ernie Broglio | 125.7 | SLN |
| +062+ | 1.89 | Jim Bouton | 113.7 | NYA |
| +066+ | 1.82 | Gary Peters | 88.3 | CHA |
| +069+ | 1.79 | Tom Cheney | 122 | TEX |
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