| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 7.51 | 196306130_HOU_LAN |
| Whitey Ford | NYA | 6.19 | 196306130_BAL_NYA |
| Bob Friend | PIT | 5.18 | 196306140_PIT_SLN |
| Warren Spahn | ATL | 3.81 | 196306140_PHI_ATL |
| Larry Jackson | CHN | 2.81 | 196306150_CHN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bennie Daniels | TEX | -1.55 | 196306150_TEX_CLE |
| Glen Hobbie | CHN | -1.01 | 196306140_CHN_LAN |
| Tracy Stallard | NYN | -1 | 196306150_NYN_CIN |
| Chris Short | PHI | -0.93 | 196306130_PHI_SLN |
| Arnold Earley | BOS | -0.7 | 196306130_TEX_BOS |
Based on accumulated WAA for this season up to 1963-06-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 4.13 | Sandy Koufax | 107 | LAN |
| +007+ | 3.88 | Jim O'Toole | 112.7 | CIN |
| +008+ | 3.84 | Dick Ellsworth | 104.7 | CHN |
| +009+ | 3.42 | Larry Jackson | 120.3 | CHN |
| +012+ | 2.98 | Bob Friend | 110.3 | PIT |
| +017+ | 2.76 | Denny Lemaster | 79.3 | ATL |
| +018+ | 2.71 | John Buzhardt | 86.3 | CHA |
| +021+ | 2.59 | Juan Marichal | 117.7 | SFN |
| +022+ | 2.57 | Jack Sanford | 120 | SFN |
| +023+ | 2.52 | Jim Bouton | 87 | NYA |
| +024+ | 2.5 | Bob Buhl | 106.3 | CHN |
| +025+ | 2.48 | Juan Pizarro | 91.3 | CHA |
| +031+ | 2.19 | Camilo Pascual | 105.7 | MIN |
| +033+ | 2.1 | Carl Willey | 87.3 | NYN |
| +035+ | 2.06 | Don Drysdale | 133.7 | LAN |
| +038+ | 2.01 | Tom Cheney | 96.3 | TEX |
| +039+ | 2 | Don Schwall | 70.3 | PIT |
| +041+ | 1.89 | Steve Barber | 117 | BAL |
| +042+ | 1.86 | Ernie Broglio | 97.7 | SLN |
| +043+ | 1.85 | Bobby Bolin | 41 | SFN |
| +048+ | 1.61 | Turk Farrell | 85.3 | HOU |
| +049+ | 1.59 | Ray Culp | 90.3 | PHI |
| +055+ | 1.56 | Earl Wilson | 96 | BOS |
| +058+ | 1.55 | Billy O'Dell | 97 | SFN |
| +059+ | 1.55 | Dallas Green | 39 | PHI |
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