| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 13.9 | 196309250_NYN_LAN |
| Gary Peters | CHA | 6.64 | 196309250_CHA_BAL |
| Larry Jackson | CHN | 4.08 | 196309250_SLN_CHN |
| Camilo Pascual | MIN | 3.59 | 196309270_MIN_NYA |
| Jim Bouton | NYA | 2.73 | 196309250_ANA_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Wickersham | OAK | -2.88 | 196309270_CLE_OAK |
| Mike McCormick | BAL | -1.39 | 196309250_CHA_BAL |
| Ray Sadecki | SLN | -1.32 | 196309270_CIN_SLN |
| Al Jackson | NYN | -1.1 | 196309270_NYN_HOU |
| Cal Koonce | CHN | -0.94 | 196309270_CHN_ATL |
Based on accumulated WAA for this season up to 1963-09-27.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 11.19 | Sandy Koufax | 311 | LAN |
| +005+ | 8.8 | Dick Ellsworth | 281.7 | CHN |
| +011+ | 7.11 | Juan Marichal | 312 | SFN |
| +012+ | 7.02 | Bob Friend | 268.3 | PIT |
| +013+ | 6.98 | Gary Peters | 239.7 | CHA |
| +017+ | 5.8 | Larry Jackson | 275.7 | CHN |
| +018+ | 5.77 | Camilo Pascual | 248.3 | MIN |
| +020+ | 5.54 | Don Drysdale | 311.3 | LAN |
| +023+ | 5.38 | Jim Bouton | 249.3 | NYA |
| +024+ | 5.27 | Curt Simmons | 232.3 | SLN |
| +028+ | 4.65 | Whitey Ford | 266.3 | NYA |
| +030+ | 4.42 | Bob Veale | 78 | PIT |
| +031+ | 4.38 | Steve Barber | 259 | BAL |
| +035+ | 4.21 | Warren Spahn | 250 | ATL |
| +036+ | 4.2 | Ken Johnson | 223 | HOU |
| +038+ | 4.09 | Al Downing | 170.7 | NYA |
| +039+ | 4.03 | Joe Nuxhall | 208.3 | CIN |
| +041+ | 3.98 | Jim Maloney | 243.7 | CIN |
| +060+ | 3.34 | Jim O'Toole | 233.3 | CIN |
| +064+ | 3.05 | Lee Stange | 157.3 | MIN |
| +070+ | 2.74 | Bob Shaw | 158 | ATL |
| +074+ | 2.67 | Ernie Broglio | 247 | SLN |
| +077+ | 2.52 | Hoyt Wilhelm | 136.7 | CHA |
| +080+ | 2.4 | Milt Pappas | 216.3 | BAL |
| +082+ | 2.38 | Bob Miller | 185 | LAN |
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