| Starter | Tm | Tier | Game |
|---|---|---|---|
| Warren Spahn | ATL | 7.96 | 196305030_CHN_ATL |
| Jim O'Toole | CIN | 6.61 | 196305051_SLN_CIN |
| Ralph Terry | NYA | 3.43 | 196305050_NYA_MIN |
| Curt Simmons | SLN | 3.12 | 196305052_SLN_CIN |
| Dick Donovan | CLE | 2.99 | 196305050_CLE_ANA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jay Hook | NYN | -6.68 | 196305030_SFN_NYN |
| Ray Sadecki | SLN | -2.69 | 196305051_SLN_CIN |
| Jim Owens | CIN | -2.11 | 196305052_SLN_CIN |
| Cal McLish | PHI | -1.4 | 196305051_HOU_PHI |
| Tony Cloninger | ATL | -1.37 | 196305050_CHN_ATL |
Based on accumulated WAA for this season up to 1963-05-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 2.14 | Tom Cheney | 40 | TEX |
| +004+ | 1.93 | Ray Washburn | 44.7 | SLN |
| +005+ | 1.92 | Curt Simmons | 42 | SLN |
| +006+ | 1.77 | Dick Ellsworth | 32.7 | CHN |
| +007+ | 1.68 | Steve Barber | 54.7 | BAL |
| +011+ | 1.56 | Ed Rakow | 40.3 | OAK |
| +013+ | 1.53 | Jim O'Toole | 54 | CIN |
| +018+ | 1.38 | Orlando Pena | 38 | OAK |
| +020+ | 1.33 | Warren Spahn | 44.7 | ATL |
| +021+ | 1.32 | Juan Pizarro | 33.7 | CHA |
| +022+ | 1.32 | Bob Miller | 40.3 | LAN |
| +024+ | 1.31 | Sandy Koufax | 29.7 | LAN |
| +025+ | 1.3 | Ernie Broglio | 44.7 | SLN |
| +028+ | 1.27 | Joe Nuxhall | 28 | CIN |
| +027+ | 1.27 | Dave Morehead | 23.7 | BOS |
| XXXXX | 1.18 | Bob Buhl | 43.7 | CHN |
| XXXXX | 1.18 | Milt Pappas | 25 | BAL |
| XXXXX | 1.14 | Don Schwall | 24.3 | PIT |
| XXXXX | 1.11 | Joe Gibbon | 13.7 | PIT |
| XXXXX | 1.05 | Larry Jackson | 47.3 | CHN |
| XXXXX | 1.04 | Jack Sanford | 56.3 | SFN |
| XXXXX | 1.04 | Jim Maloney | 38 | CIN |
| XXXXX | 1.02 | Dick Stigman | 41 | MIN |
| XXXXX | 0.97 | Juan Marichal | 42 | SFN |
| XXXXX | 0.9 | Billy O'Dell | 35.7 | SFN |
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