| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 11.07 | 196309021_HOU_LAN |
| Dick Ellsworth | CHN | 9.08 | 196309021_CHN_SFN |
| Gary Peters | CHA | 7.51 | 196309021_ANA_CHA |
| Juan Marichal | SFN | 4.34 | 196309030_CHN_SFN |
| Camilo Pascual | MIN | 2.89 | 196309030_OAK_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jay Hook | NYN | -6.27 | 196309022_CIN_NYN |
| Barry Latman | CLE | -3.31 | 196309022_TEX_CLE |
| Ray Sadecki | SLN | -2.58 | 196309030_PIT_SLN |
| Jim Bunning | DET | -2.36 | 196309030_NYA_DET |
| Bennie Daniels | TEX | -1.93 | 196309010_TEX_BOS |
Based on accumulated WAA for this season up to 1963-09-03.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 9.23 | Sandy Koufax | 265.3 | LAN |
| +003+ | 8.2 | Dick Ellsworth | 249.7 | CHN |
| +004+ | 7.56 | Gary Peters | 205.7 | CHA |
| +005+ | 7.54 | Bob Friend | 236 | PIT |
| +011+ | 6.11 | Juan Marichal | 268 | SFN |
| +012+ | 5.98 | Larry Jackson | 240.3 | CHN |
| +015+ | 5.37 | Juan Pizarro | 215 | CHA |
| +020+ | 4.9 | Jim Bouton | 212 | NYA |
| +022+ | 4.85 | Don Drysdale | 278.7 | LAN |
| +023+ | 4.85 | Camilo Pascual | 205.7 | MIN |
| +024+ | 4.84 | Steve Barber | 234.3 | BAL |
| +025+ | 4.81 | Jim O'Toole | 218.3 | CIN |
| +030+ | 4.38 | Warren Spahn | 209.7 | ATL |
| +034+ | 4.1 | Jim Maloney | 212.3 | CIN |
| +037+ | 3.82 | Joe Nuxhall | 181 | CIN |
| +039+ | 3.69 | Al Downing | 145.7 | NYA |
| +044+ | 3.33 | Denny Lemaster | 207 | ATL |
| +049+ | 3.05 | Milt Pappas | 197 | BAL |
| +055+ | 2.95 | Lee Stange | 126 | MIN |
| +063+ | 2.82 | Curt Simmons | 192.3 | SLN |
| +064+ | 2.78 | Tom Cheney | 136.7 | TEX |
| +068+ | 2.62 | Ray Culp | 182 | PHI |
| +071+ | 2.52 | Don Cardwell | 197.7 | PIT |
| +076+ | 2.47 | Ken McBride | 239.7 | ANA |
| +079+ | 2.43 | Billy O'Dell | 188.7 | SFN |
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