| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Friend | PIT | 8.48 | 196308041_PIT_CIN |
| Juan Marichal | SFN | 6.88 | 196308050_SFN_HOU |
| Larry Jackson | CHN | 6.29 | 196308060_LAN_CHN |
| Jim O'Toole | CIN | 5.27 | 196308061_CIN_PHI |
| Steve Barber | BAL | 1.92 | 196308041_BAL_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bennie Daniels | TEX | -2.26 | 196308062_NYA_TEX |
| Galen Cisco | NYN | -1.41 | 196308060_SLN_NYN |
| Barry Latman | CLE | -0.72 | 196308060_CLE_BAL |
| Dave McNally | BAL | -0.66 | 196308042_BAL_NYA |
| Hank Aguirre | DET | -0.46 | 196308041_CLE_DET |
Based on accumulated WAA for this season up to 1963-08-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.93 | Sandy Koufax | 203.7 | LAN |
| +003+ | 6.54 | Juan Marichal | 214.3 | SFN |
| +005+ | 6.34 | Bob Friend | 194.7 | PIT |
| +006+ | 6.32 | Dick Ellsworth | 191.3 | CHN |
| +008+ | 6.09 | Larry Jackson | 199 | CHN |
| +010+ | 5.62 | Juan Pizarro | 168.7 | CHA |
| +012+ | 5.05 | Jim O'Toole | 185.7 | CIN |
| +014+ | 4.76 | Gary Peters | 142.3 | CHA |
| +019+ | 4 | Ken McBride | 200.7 | ANA |
| +022+ | 3.69 | Steve Barber | 181.7 | BAL |
| +025+ | 3.57 | Joe Nuxhall | 142.3 | CIN |
| +027+ | 3.49 | Milt Pappas | 156 | BAL |
| +028+ | 3.44 | Camilo Pascual | 144.7 | MIN |
| +031+ | 3.31 | Jim Maloney | 169.7 | CIN |
| +038+ | 3.18 | Jim Bouton | 161.7 | NYA |
| +043+ | 3.06 | Warren Spahn | 164.7 | ATL |
| +044+ | 3.05 | John Buzhardt | 126.3 | CHA |
| +046+ | 3.01 | Johnny Podres | 145.7 | LAN |
| +049+ | 2.91 | Don Drysdale | 222 | LAN |
| +053+ | 2.7 | Denny Lemaster | 168 | ATL |
| +057+ | 2.55 | Billy O'Dell | 167.3 | SFN |
| +059+ | 2.52 | Tom Cheney | 128.7 | TEX |
| +061+ | 2.5 | Don Schwall | 117.3 | PIT |
| +065+ | 2.38 | Dick Stigman | 165 | MIN |
| +067+ | 2.29 | Joe Gibbon | 94.3 | PIT |
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