| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 12.18 | 196308070_LAN_CHN |
| Juan Marichal | SFN | 6.88 | 196308050_SFN_HOU |
| Larry Jackson | CHN | 6.29 | 196308060_LAN_CHN |
| Juan Pizarro | CHA | 5.66 | 196308070_CHA_OAK |
| Jim O'Toole | CIN | 5.27 | 196308061_CIN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tracy Stallard | NYN | -2.57 | 196308070_SLN_NYN |
| Bennie Daniels | TEX | -2.26 | 196308062_NYA_TEX |
| Jim Bunning | DET | -1.05 | 196308070_BOS_DET |
| Hank Fischer | ATL | -0.96 | 196308070_ATL_PIT |
| Barry Latman | CLE | -0.72 | 196308060_CLE_BAL |
Based on accumulated WAA for this season up to 1963-08-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.45 | Sandy Koufax | 213 | LAN |
| +003+ | 6.88 | Dick Ellsworth | 201.3 | CHN |
| +004+ | 6.56 | Juan Marichal | 214.3 | SFN |
| +007+ | 6.34 | Bob Friend | 194.7 | PIT |
| +008+ | 6.07 | Larry Jackson | 199 | CHN |
| +010+ | 5.61 | Juan Pizarro | 176.3 | CHA |
| +012+ | 5.07 | Jim O'Toole | 185.7 | CIN |
| +014+ | 4.76 | Gary Peters | 142.3 | CHA |
| +023+ | 3.69 | Steve Barber | 181.7 | BAL |
| +024+ | 3.6 | Ken McBride | 208.7 | ANA |
| +025+ | 3.58 | Joe Nuxhall | 142.3 | CIN |
| +028+ | 3.48 | Jim Maloney | 176.7 | CIN |
| +030+ | 3.43 | Milt Pappas | 163 | BAL |
| +031+ | 3.39 | Camilo Pascual | 151.7 | MIN |
| +037+ | 3.18 | Jim Bouton | 161.7 | NYA |
| +041+ | 3.07 | Warren Spahn | 164.7 | ATL |
| +044+ | 3.05 | John Buzhardt | 126.3 | CHA |
| +046+ | 2.99 | Johnny Podres | 145.7 | LAN |
| +050+ | 2.87 | Don Drysdale | 222 | LAN |
| +056+ | 2.77 | Tom Cheney | 131.7 | TEX |
| +057+ | 2.71 | Denny Lemaster | 168 | ATL |
| +059+ | 2.59 | Turk Farrell | 134.7 | HOU |
| +060+ | 2.56 | Billy O'Dell | 167.3 | SFN |
| +064+ | 2.38 | Dick Stigman | 165 | MIN |
| +068+ | 2.29 | Joe Gibbon | 94.3 | PIT |
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