| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim O'Toole | CIN | 8.68 | 196306300_CIN_SFN |
| Bob Friend | PIT | 6.99 | 196306300_NYN_PIT |
| Larry Jackson | CHN | 5.04 | 196306300_CHN_PHI |
| Juan Pizarro | CHA | 4.32 | 196306301_CLE_CHA |
| Whitey Ford | NYA | 3.72 | 196306301_BOS_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ray Sadecki | SLN | -4.25 | 196307010_SLN_HOU |
| Don Cardwell | PIT | -1.59 | 196307011_PIT_PHI |
| Bennie Daniels | TEX | -1.21 | 196307020_OAK_TEX |
| Art Mahaffey | PHI | -1.2 | 196306300_CHN_PHI |
| Paul Foytack | ANA | -0.96 | 196307020_ANA_BAL |
Based on accumulated WAA for this season up to 1963-07-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 4.83 | Jim O'Toole | 144 | CIN |
| +005+ | 4.68 | Sandy Koufax | 138.3 | LAN |
| +006+ | 4.66 | Juan Marichal | 155.7 | SFN |
| +007+ | 4.62 | Bob Friend | 140 | PIT |
| +008+ | 4.53 | Dick Ellsworth | 131 | CHN |
| +010+ | 4.4 | Larry Jackson | 145.3 | CHN |
| +015+ | 3.44 | Juan Pizarro | 124.3 | CHA |
| +016+ | 3.4 | Denny Lemaster | 108.7 | ATL |
| +021+ | 2.92 | Ray Culp | 123.3 | PHI |
| +022+ | 2.88 | Earl Wilson | 117.7 | BOS |
| +024+ | 2.84 | John Buzhardt | 111.7 | CHA |
| +027+ | 2.81 | Steve Barber | 142.3 | BAL |
| +028+ | 2.75 | Ernie Broglio | 120.7 | SLN |
| +036+ | 2.44 | Don Drysdale | 163 | LAN |
| +040+ | 2.3 | Camilo Pascual | 108.7 | MIN |
| +039+ | 2.3 | Jack Kralick | 105 | TOT |
| +043+ | 2.22 | Bob Buhl | 136.3 | CHN |
| +044+ | 2.2 | Carl Willey | 104.7 | NYN |
| +046+ | 2.18 | Bobby Bolin | 53.7 | SFN |
| +050+ | 2.12 | Don Schwall | 80.7 | PIT |
| +052+ | 2.1 | Joe Nuxhall | 90 | CIN |
| +055+ | 2.03 | Ken McBride | 145 | ANA |
| +058+ | 2 | Billy O'Dell | 125 | SFN |
| +063+ | 1.92 | Jim Bouton | 113.7 | NYA |
| +065+ | 1.89 | Gary Peters | 81.3 | CHA |
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