| Starter | Tm | Tier | Game |
|---|---|---|---|
| Warren Spahn | ATL | 7.96 | 196305030_CHN_ATL |
| Whitey Ford | NYA | 5.69 | 196305020_NYA_ANA |
| Don Drysdale | LAN | 3.26 | 196305020_LAN_PHI |
| Juan Pizarro | CHA | 3.09 | 196305020_BAL_CHA |
| Jim Bunning | DET | 2.98 | 196305040_BAL_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jay Hook | NYN | -6.68 | 196305030_SFN_NYN |
| Don Cardwell | PIT | -2.08 | 196305020_SFN_PIT |
| Jack Fisher | SFN | -1.24 | 196305030_SFN_NYN |
| Glen Hobbie | CHN | -1.21 | 196305040_CHN_ATL |
| Sam McDowell | CLE | -1.03 | 196305030_CLE_ANA |
Based on accumulated WAA for this season up to 1963-05-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 2.63 | Tom Cheney | 36 | TEX |
| +003+ | 1.91 | Ray Washburn | 44.7 | SLN |
| +005+ | 1.88 | Jim O'Toole | 48 | CIN |
| +006+ | 1.84 | Curt Simmons | 36 | SLN |
| +007+ | 1.75 | Dick Ellsworth | 32.7 | CHN |
| +009+ | 1.63 | Steve Barber | 54.7 | BAL |
| +013+ | 1.54 | Ed Rakow | 40.3 | OAK |
| +019+ | 1.31 | Warren Spahn | 44.7 | ATL |
| +020+ | 1.3 | Bob Miller | 40.3 | LAN |
| +021+ | 1.3 | Sandy Koufax | 29.7 | LAN |
| +022+ | 1.29 | Juan Pizarro | 33.7 | CHA |
| +025+ | 1.28 | Ernie Broglio | 44.7 | SLN |
| +026+ | 1.27 | Joe Nuxhall | 28 | CIN |
| XXXXX | 1.22 | Orlando Pena | 31 | OAK |
| XXXXX | 1.16 | Bob Buhl | 43.7 | CHN |
| XXXXX | 1.16 | Milt Pappas | 25 | BAL |
| XXXXX | 1.13 | Don Schwall | 24.3 | PIT |
| XXXXX | 1.1 | Joe Gibbon | 13.7 | PIT |
| XXXXX | 1.07 | Dave Morehead | 16 | BOS |
| XXXXX | 1.05 | Jim Maloney | 38 | CIN |
| XXXXX | 1.03 | Larry Jackson | 47.3 | CHN |
| XXXXX | 1 | Dick Stigman | 41 | MIN |
| XXXXX | 0.99 | Phil Regan | 26.7 | DET |
| XXXXX | 0.93 | Juan Marichal | 42 | SFN |
| XXXXX | 0.86 | Billy O'Dell | 35.7 | SFN |
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