| Starter | Tm | Tier | Game |
|---|---|---|---|
| Warren Spahn | ATL | 7.65 | 196305090_SFN_ATL |
| Sandy Koufax | LAN | 5.45 | 196305110_SFN_LAN |
| Jim O'Toole | CIN | 5.44 | 196305100_CIN_NYN |
| Whitey Ford | NYA | 5.38 | 196305100_NYA_BAL |
| Dick Donovan | CLE | 3.26 | 196305110_CLE_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Craig | NYN | -3.64 | 196305090_PHI_NYN |
| Cal McLish | PHI | -2.24 | 196305090_PHI_NYN |
| Ted Bowsfield | OAK | -2.03 | 196305110_OAK_MIN |
| Glen Hobbie | CHN | -1.23 | 196305100_CHN_HOU |
| Pete Richert | LAN | -1.03 | 196305090_LAN_SLN |
Based on accumulated WAA for this season up to 1963-05-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 2.66 | Curt Simmons | 51 | SLN |
| +003+ | 2.53 | Dick Ellsworth | 41.7 | CHN |
| +005+ | 2.49 | Sandy Koufax | 46.7 | LAN |
| +008+ | 2.07 | Juan Pizarro | 43 | CHA |
| +011+ | 1.82 | Tom Cheney | 47.3 | TEX |
| +012+ | 1.8 | Joe Nuxhall | 37 | CIN |
| +013+ | 1.79 | Bob Buhl | 50.7 | CHN |
| +016+ | 1.59 | Ray Washburn | 53.3 | SLN |
| +017+ | 1.57 | Steve Barber | 63.7 | BAL |
| +018+ | 1.55 | Jim O'Toole | 62 | CIN |
| +020+ | 1.53 | Orlando Pena | 45 | OAK |
| +021+ | 1.52 | Don Schwall | 31.3 | PIT |
| +023+ | 1.48 | Joe Gibbon | 18 | PIT |
| +025+ | 1.43 | Billy O'Dell | 44.7 | SFN |
| +027+ | 1.39 | Carl Willey | 29.7 | NYN |
| +031+ | 1.35 | Larry Jackson | 63.3 | CHN |
| +034+ | 1.29 | Dave Morehead | 23.7 | BOS |
| XXXXX | 1.23 | Jack Sanford | 63.3 | SFN |
| XXXXX | 1.23 | Phil Regan | 40.3 | DET |
| XXXXX | 1.18 | Milt Pappas | 27.7 | BAL |
| XXXXX | 1.15 | Jim Maloney | 47 | CIN |
| XXXXX | 1.11 | Al Jackson | 54.3 | NYN |
| XXXXX | 1.09 | Juan Marichal | 56.3 | SFN |
| XXXXX | 1.05 | Ray Herbert | 40.7 | CHA |
| XXXXX | 1.05 | Dick Stigman | 41 | MIN |
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