| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 7.51 | 196306130_HOU_LAN |
| Jim O'Toole | CIN | 6.55 | 196306120_PIT_CIN |
| Whitey Ford | NYA | 6.19 | 196306130_BAL_NYA |
| Bob Friend | PIT | 5.18 | 196306140_PIT_SLN |
| Warren Spahn | ATL | 3.81 | 196306140_PHI_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Galen Cisco | NYN | -3.34 | 196306120_NYN_ATL |
| Bob Turley | ANA | -1.21 | 196306122_ANA_CHA |
| Lew Burdette | ATL | -1.17 | 196306120_NYN_ATL |
| Glen Hobbie | CHN | -1.01 | 196306140_CHN_LAN |
| Chris Short | PHI | -0.93 | 196306130_PHI_SLN |
Based on accumulated WAA for this season up to 1963-06-14.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +005+ | 4.14 | Sandy Koufax | 107 | LAN |
| +007+ | 3.9 | Jim O'Toole | 112.7 | CIN |
| +008+ | 3.84 | Dick Ellsworth | 104.7 | CHN |
| +009+ | 3.7 | Larry Jackson | 113.3 | CHN |
| +010+ | 3.06 | Denny Lemaster | 75 | ATL |
| +012+ | 3 | Bob Friend | 110.3 | PIT |
| +019+ | 2.73 | John Buzhardt | 86.3 | CHA |
| +021+ | 2.59 | Jack Sanford | 120 | SFN |
| +022+ | 2.54 | Jim Bouton | 87 | NYA |
| +023+ | 2.5 | Bob Buhl | 106.3 | CHN |
| +024+ | 2.5 | Juan Pizarro | 91.3 | CHA |
| +031+ | 2.21 | Camilo Pascual | 105.7 | MIN |
| +034+ | 2.11 | Carl Willey | 87.3 | NYN |
| +036+ | 2.02 | Don Schwall | 70.3 | PIT |
| +037+ | 2.01 | Tom Cheney | 96.3 | TEX |
| +039+ | 1.91 | Steve Barber | 117 | BAL |
| +041+ | 1.88 | Juan Marichal | 108.7 | SFN |
| +040+ | 1.88 | Ernie Broglio | 97.7 | SLN |
| +042+ | 1.85 | Bobby Bolin | 41 | SFN |
| +050+ | 1.61 | Turk Farrell | 85.3 | HOU |
| +052+ | 1.6 | Ray Culp | 90.3 | PHI |
| +055+ | 1.57 | Earl Wilson | 96 | BOS |
| +056+ | 1.57 | Don Drysdale | 124.7 | LAN |
| +057+ | 1.56 | Billy O'Dell | 97 | SFN |
| +061+ | 1.54 | Ken McBride | 108.7 | ANA |
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