| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 11.55 | 196309100_LAN_PIT |
| Dick Ellsworth | CHN | 8.92 | 196309110_CHN_SLN |
| Gary Peters | CHA | 7.33 | 196309090_BAL_CHA |
| Jim Bouton | NYA | 2.44 | 196309090_NYA_OAK |
| Jim O'Toole | CIN | 2.28 | 196309091_ATL_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Barry Latman | CLE | -3.67 | 196309100_CLE_MIN |
| Ray Sadecki | SLN | -2.53 | 196309110_CHN_SLN |
| Jim Bunning | DET | -2.21 | 196309091_DET_TEX |
| Bo Belinsky | ANA | -1.63 | 196309100_BOS_ANA |
| Al Jackson | NYN | -1.56 | 196309110_SFN_NYN |
Based on accumulated WAA for this season up to 1963-09-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 10 | Sandy Koufax | 282.3 | LAN |
| +003+ | 8.37 | Dick Ellsworth | 266.3 | CHN |
| +004+ | 7.88 | Bob Friend | 250 | PIT |
| +005+ | 7.78 | Gary Peters | 221.7 | CHA |
| +012+ | 6.46 | Juan Marichal | 277 | SFN |
| +014+ | 6.2 | Larry Jackson | 247.3 | CHN |
| +018+ | 5.45 | Warren Spahn | 227.7 | ATL |
| +025+ | 4.8 | Jim Bouton | 226.3 | NYA |
| +026+ | 4.72 | Jim Maloney | 230 | CIN |
| +027+ | 4.66 | Steve Barber | 239.3 | BAL |
| +028+ | 4.55 | Don Drysdale | 287.7 | LAN |
| +029+ | 4.42 | Camilo Pascual | 213.3 | MIN |
| +032+ | 4.31 | Curt Simmons | 210.3 | SLN |
| +035+ | 4.14 | Joe Nuxhall | 190 | CIN |
| +036+ | 4.03 | Jim O'Toole | 229.3 | CIN |
| +040+ | 3.78 | Al Downing | 154.7 | NYA |
| +047+ | 3.4 | Whitey Ford | 245.3 | NYA |
| +048+ | 3.34 | Lee Stange | 143.7 | MIN |
| +053+ | 3.23 | Milt Pappas | 209 | BAL |
| +060+ | 3.01 | Ray Culp | 189.3 | PHI |
| +077+ | 2.57 | Denny Lemaster | 215.3 | ATL |
| +080+ | 2.51 | Bob Sadowski | 99.3 | ATL |
| +082+ | 2.44 | Ken Johnson | 196.7 | HOU |
| +083+ | 2.43 | Carl Willey | 164 | NYN |
| +084+ | 2.34 | Bob Veale | 51.7 | PIT |
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