| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 10.51 | 196308030_LAN_HOU |
| Dick Ellsworth | CHN | 6.32 | 196308020_SFN_CHN |
| Juan Pizarro | CHA | 4.83 | 196308020_CHA_ANA |
| Camilo Pascual | MIN | 2.49 | 196308020_MIN_OAK |
| Ken McBride | ANA | 2.26 | 196308030_CHA_ANA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ray Sadecki | SLN | -3.36 | 196308020_PHI_SLN |
| Galen Cisco | NYN | -2.54 | 196308022_NYN_ATL |
| Dick Donovan | CLE | -2.45 | 196308030_CLE_DET |
| Bennie Daniels | TEX | -1.79 | 196308021_BOS_TEX |
| Dave Wickersham | OAK | -1.07 | 196308030_MIN_OAK |
Based on accumulated WAA for this season up to 1963-08-03.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.95 | Sandy Koufax | 203.7 | LAN |
| +003+ | 6.65 | Bob Friend | 193.3 | PIT |
| +004+ | 6.64 | Juan Marichal | 207.3 | SFN |
| +007+ | 6.35 | Dick Ellsworth | 191.3 | CHN |
| +008+ | 6.25 | Larry Jackson | 192.7 | CHN |
| +009+ | 5.63 | Juan Pizarro | 168.7 | CHA |
| +010+ | 5.54 | Jim O'Toole | 181 | CIN |
| +014+ | 4.76 | Gary Peters | 142.3 | CHA |
| +019+ | 4.02 | Ken McBride | 200.7 | ANA |
| +023+ | 3.62 | Steve Barber | 175.3 | BAL |
| +024+ | 3.51 | Milt Pappas | 156 | BAL |
| +026+ | 3.45 | Camilo Pascual | 144.7 | MIN |
| +030+ | 3.34 | Jim Maloney | 169.7 | CIN |
| +038+ | 3.06 | Warren Spahn | 164.7 | ATL |
| +039+ | 3.06 | Joe Nuxhall | 133.3 | CIN |
| +037+ | 3.06 | Jim Bouton | 160 | NYA |
| +040+ | 3.05 | John Buzhardt | 126.3 | CHA |
| +046+ | 2.82 | Denny Lemaster | 161.7 | ATL |
| +052+ | 2.64 | Joe Gibbon | 88.3 | PIT |
| +056+ | 2.54 | Tom Cheney | 128.7 | TEX |
| +057+ | 2.5 | Don Schwall | 117.3 | PIT |
| +060+ | 2.41 | Don Drysdale | 213 | LAN |
| +062+ | 2.38 | Dick Stigman | 165 | MIN |
| +063+ | 2.37 | Johnny Podres | 137.7 | LAN |
| +067+ | 2.26 | Ray Culp | 148.3 | PHI |
_