| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim O'Toole | CIN | 6.61 | 196305280_SFN_CIN |
| Sandy Koufax | LAN | 6.51 | 196305280_LAN_ATL |
| Bob Friend | PIT | 3.87 | 196305280_PHI_PIT |
| Ralph Terry | NYA | 3.74 | 196305250_TEX_NYA |
| Steve Barber | BAL | 3.31 | 196305261_BAL_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ray Sadecki | SLN | -3.67 | 196305250_NYN_SLN |
| Galen Cisco | NYN | -3.06 | 196305261_NYN_SLN |
| Lew Burdette | ATL | -1.75 | 196305260_PIT_ATL |
| Jack Fisher | SFN | -1.4 | 196305280_SFN_CIN |
| Ted Bowsfield | OAK | -1.18 | 196305280_BAL_OAK |
Based on accumulated WAA for this season up to 1963-05-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.88 | Dick Ellsworth | 73.7 | CHN |
| +002+ | 3.5 | Sandy Koufax | 77.3 | LAN |
| +007+ | 2.69 | Denny Lemaster | 55.7 | ATL |
| +010+ | 2.6 | Steve Barber | 90.7 | BAL |
| +013+ | 2.55 | Larry Jackson | 88.3 | CHN |
| +016+ | 2.27 | Don Schwall | 50 | PIT |
| +017+ | 2.26 | Milt Pappas | 50.7 | BAL |
| +018+ | 2.19 | Jim O'Toole | 86 | CIN |
| +019+ | 2.15 | Jack Sanford | 91.7 | SFN |
| +021+ | 2.14 | Joe Nuxhall | 63 | CIN |
| +025+ | 1.95 | Curt Simmons | 70.3 | SLN |
| +029+ | 1.84 | Carl Willey | 57.3 | NYN |
| +031+ | 1.76 | Robin Roberts | 75.3 | BAL |
| +033+ | 1.72 | Joe Gibbon | 38.3 | PIT |
| +034+ | 1.71 | Jim Bouton | 59 | NYA |
| +035+ | 1.7 | Juan Pizarro | 60.3 | CHA |
| +036+ | 1.67 | Jim Maloney | 67.3 | CIN |
| +037+ | 1.65 | Bob Friend | 78 | PIT |
| +038+ | 1.65 | Tom Cheney | 67 | TEX |
| +039+ | 1.63 | Bob Buhl | 77 | CHN |
| +043+ | 1.52 | Ernie Broglio | 78 | SLN |
| +044+ | 1.45 | Billy O'Dell | 67.3 | SFN |
| +055+ | 1.31 | Al Jackson | 78.7 | NYN |
| XXXXX | 1.25 | Ray Culp | 63.3 | PHI |
| XXXXX | 1.22 | Juan Marichal | 75 | SFN |
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