| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 10.51 | 196308030_LAN_HOU |
| Bob Friend | PIT | 8.48 | 196308041_PIT_CIN |
| Juan Marichal | SFN | 6.88 | 196308050_SFN_HOU |
| Gary Peters | CHA | 2.83 | 196308030_CHA_ANA |
| Ken McBride | ANA | 2.26 | 196308030_CHA_ANA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dick Donovan | CLE | -2.45 | 196308030_CLE_DET |
| Tracy Stallard | NYN | -2.09 | 196308030_NYN_ATL |
| Dave Wickersham | OAK | -1.07 | 196308030_MIN_OAK |
| Jim Duckworth | TEX | -0.96 | 196308030_BOS_TEX |
| Hank Fischer | ATL | -0.74 | 196308030_NYN_ATL |
Based on accumulated WAA for this season up to 1963-08-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.94 | Sandy Koufax | 203.7 | LAN |
| +003+ | 6.55 | Juan Marichal | 214.3 | SFN |
| +005+ | 6.35 | Bob Friend | 194.7 | PIT |
| +007+ | 6.32 | Dick Ellsworth | 191.3 | CHN |
| +008+ | 6.22 | Larry Jackson | 192.7 | CHN |
| +010+ | 5.62 | Juan Pizarro | 168.7 | CHA |
| +011+ | 5.52 | Jim O'Toole | 181 | CIN |
| +014+ | 4.75 | Gary Peters | 142.3 | CHA |
| +019+ | 4.01 | Ken McBride | 200.7 | ANA |
| +022+ | 3.7 | Steve Barber | 181.7 | BAL |
| +024+ | 3.58 | Joe Nuxhall | 142.3 | CIN |
| +025+ | 3.49 | Milt Pappas | 156 | BAL |
| +027+ | 3.45 | Camilo Pascual | 144.7 | MIN |
| +032+ | 3.32 | Jim Maloney | 169.7 | CIN |
| +039+ | 3.17 | Jim Bouton | 161.7 | NYA |
| +041+ | 3.05 | Warren Spahn | 164.7 | ATL |
| +042+ | 3.04 | John Buzhardt | 126.3 | CHA |
| +045+ | 3.01 | Johnny Podres | 145.7 | LAN |
| +049+ | 2.82 | Denny Lemaster | 161.7 | ATL |
| +055+ | 2.55 | Billy O'Dell | 167.3 | SFN |
| +057+ | 2.53 | Tom Cheney | 128.7 | TEX |
| +058+ | 2.51 | Don Schwall | 117.3 | PIT |
| +062+ | 2.39 | Don Drysdale | 213 | LAN |
| +064+ | 2.39 | Dick Stigman | 165 | MIN |
| +065+ | 2.3 | Joe Gibbon | 94.3 | PIT |
_