| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Friend | PIT | 6.99 | 196306260_PHI_PIT |
| Whitey Ford | NYA | 3.76 | 196306260_NYA_CHA |
| Don Drysdale | LAN | 2.67 | 196306280_ATL_LAN |
| Juan Marichal | SFN | 2.62 | 196306280_CIN_SFN |
| Warren Spahn | ATL | 2.41 | 196306280_ATL_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Craig | NYN | -2.19 | 196306280_NYN_PIT |
| Ike Delock | BAL | -1.44 | 196306261_BAL_ANA |
| Paul Foytack | ANA | -1.32 | 196306261_BAL_ANA |
| Bennie Daniels | TEX | -1.27 | 196306270_TEX_OAK |
| Don Cardwell | PIT | -0.64 | 196306270_PHI_PIT |
Based on accumulated WAA for this season up to 1963-06-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.48 | Sandy Koufax | 133.7 | LAN |
| +005+ | 4.65 | Jim O'Toole | 138 | CIN |
| +006+ | 4.6 | Dick Ellsworth | 131 | CHN |
| +007+ | 4.56 | Larry Jackson | 138.3 | CHN |
| +009+ | 4.05 | Bob Friend | 132 | PIT |
| +010+ | 3.94 | Juan Pizarro | 116.7 | CHA |
| +012+ | 3.82 | Denny Lemaster | 101.3 | ATL |
| +014+ | 3.59 | Juan Marichal | 139.7 | SFN |
| +020+ | 3.06 | John Buzhardt | 105.7 | CHA |
| +022+ | 2.93 | Steve Barber | 138.3 | BAL |
| +025+ | 2.71 | Earl Wilson | 112.7 | BOS |
| +027+ | 2.7 | Ray Culp | 114.3 | PHI |
| +026+ | 2.7 | Jim Bouton | 109.3 | NYA |
| +037+ | 2.48 | Ernie Broglio | 113.7 | SLN |
| +038+ | 2.46 | Billy O'Dell | 118 | SFN |
| +039+ | 2.31 | Al McBean | 72 | PIT |
| +041+ | 2.3 | Jack Kralick | 99 | TOT |
| +042+ | 2.29 | Ken McBride | 139.7 | ANA |
| +043+ | 2.27 | Bobby Bolin | 53.7 | SFN |
| +047+ | 2.21 | Carl Willey | 99 | NYN |
| +048+ | 2.17 | Don Schwall | 80.7 | PIT |
| +049+ | 2.13 | Camilo Pascual | 105.7 | MIN |
| +057+ | 1.91 | Joe Gibbon | 62 | PIT |
| +060+ | 1.87 | Don Drysdale | 154 | LAN |
| +063+ | 1.84 | Jack Sanford | 133.7 | SFN |
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