| Starter | Tm | Tier | Game |
|---|---|---|---|
| Warren Spahn | ATL | 7.65 | 196305090_SFN_ATL |
| Jim O'Toole | CIN | 5.44 | 196305100_CIN_NYN |
| Whitey Ford | NYA | 5.38 | 196305100_NYA_BAL |
| Curt Simmons | SLN | 3.14 | 196305100_SLN_PIT |
| Don Drysdale | LAN | 2.32 | 196305100_SFN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jay Hook | NYN | -8.06 | 196305080_PHI_NYN |
| Cal McLish | PHI | -2.24 | 196305090_PHI_NYN |
| Jack Fisher | SFN | -1.25 | 196305080_SFN_ATL |
| Glen Hobbie | CHN | -1.23 | 196305100_CHN_HOU |
| Bob Bruce | HOU | -1.1 | 196305080_HOU_CIN |
Based on accumulated WAA for this season up to 1963-05-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 2.65 | Curt Simmons | 51 | SLN |
| +004+ | 2.51 | Dick Ellsworth | 41.7 | CHN |
| +007+ | 2.07 | Juan Pizarro | 43 | CHA |
| +009+ | 1.83 | Tom Cheney | 47.3 | TEX |
| +010+ | 1.8 | Joe Nuxhall | 37 | CIN |
| +011+ | 1.77 | Sandy Koufax | 37.7 | LAN |
| +012+ | 1.76 | Bob Buhl | 50.7 | CHN |
| +014+ | 1.72 | Ray Washburn | 47.3 | SLN |
| +019+ | 1.58 | Steve Barber | 63.7 | BAL |
| +020+ | 1.56 | Jim O'Toole | 62 | CIN |
| +021+ | 1.53 | Orlando Pena | 45 | OAK |
| +022+ | 1.53 | Don Schwall | 31.3 | PIT |
| +023+ | 1.5 | Juan Marichal | 51 | SFN |
| +024+ | 1.48 | Joe Gibbon | 18 | PIT |
| +025+ | 1.42 | Billy O'Dell | 44.7 | SFN |
| +026+ | 1.4 | Carl Willey | 29.7 | NYN |
| +032+ | 1.29 | Dave Morehead | 23.7 | BOS |
| XXXXX | 1.25 | Phil Regan | 40.3 | DET |
| XXXXX | 1.21 | Jack Sanford | 63.3 | SFN |
| XXXXX | 1.18 | Milt Pappas | 25 | BAL |
| XXXXX | 1.17 | Al Jackson | 47.3 | NYN |
| XXXXX | 1.16 | Jim Maloney | 47 | CIN |
| XXXXX | 1.05 | Dick Stigman | 41 | MIN |
| XXXXX | 1.05 | Ray Herbert | 40.7 | CHA |
| XXXXX | 1.02 | Bob Miller | 44 | LAN |
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