| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 8.62 | 196306050_LAN_HOU |
| Whitey Ford | NYA | 5.76 | 196306050_NYA_BAL |
| Bob Friend | PIT | 4.83 | 196306052_CIN_PIT |
| Warren Spahn | ATL | 3.56 | 196306050_ATL_NYN |
| Larry Jackson | CHN | 2.3 | 196306060_SFN_CHN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jay Hook | NYN | -8.05 | 196306050_ATL_NYN |
| Gene Conley | BOS | -3.41 | 196306060_BOS_TEX |
| Jack Fisher | SFN | -2.64 | 196306051_SFN_CHN |
| Glen Hobbie | CHN | -1.41 | 196306052_SFN_CHN |
| Chris Short | PHI | -0.83 | 196306060_SLN_PHI |
Based on accumulated WAA for this season up to 1963-06-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 4.26 | Sandy Koufax | 93.3 | LAN |
| +004+ | 4.05 | Dick Ellsworth | 89.7 | CHN |
| +006+ | 3.42 | Larry Jackson | 105.3 | CHN |
| +007+ | 3.26 | Denny Lemaster | 68.3 | ATL |
| +017+ | 2.5 | Juan Pizarro | 81.3 | CHA |
| +018+ | 2.45 | Bob Buhl | 93.3 | CHN |
| +019+ | 2.44 | Steve Barber | 105 | BAL |
| +020+ | 2.39 | Jim O'Toole | 94.7 | CIN |
| +021+ | 2.38 | Tom Cheney | 84.7 | TEX |
| +025+ | 2.29 | Bob Friend | 95 | PIT |
| +027+ | 2.18 | John Buzhardt | 77.3 | CHA |
| +028+ | 2.04 | Don Schwall | 63.7 | PIT |
| +032+ | 1.96 | Carl Willey | 73 | NYN |
| +034+ | 1.82 | Jim Bouton | 71 | NYA |
| +039+ | 1.71 | Milt Pappas | 62.3 | BAL |
| +040+ | 1.7 | Jack Sanford | 104.7 | SFN |
| +049+ | 1.49 | Don Drysdale | 116.7 | LAN |
| +051+ | 1.48 | Ray Culp | 77.3 | PHI |
| +053+ | 1.4 | Curt Simmons | 80 | SLN |
| +058+ | 1.37 | Robin Roberts | 86.7 | BAL |
| +061+ | 1.34 | Bobby Bolin | 32.3 | SFN |
| +062+ | 1.33 | Turk Farrell | 82.7 | HOU |
| +063+ | 1.32 | Dallas Green | 29 | PHI |
| +064+ | 1.29 | Cal McLish | 75 | PHI |
| XXXXX | 1.25 | Ron Taylor | 52 | SLN |
_