| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 13.15 | 196307200_LAN_ATL |
| Bob Friend | PIT | 8.73 | 196307190_CHN_PIT |
| Jim O'Toole | CIN | 6.98 | 196307210_SFN_CIN |
| Dick Ellsworth | CHN | 4.98 | 196307190_CHN_PIT |
| Juan Pizarro | CHA | 3.86 | 196307210_BOS_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Craig | NYN | -2.03 | 196307190_NYN_PHI |
| Barry Latman | CLE | -1.87 | 196307212_CLE_NYA |
| Dave Wickersham | OAK | -0.97 | 196307200_BAL_OAK |
| Chris Short | PHI | -0.68 | 196307211_NYN_PHI |
| Hank Fischer | ATL | -0.66 | 196307212_LAN_ATL |
Based on accumulated WAA for this season up to 1963-07-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.2 | Sandy Koufax | 179.7 | LAN |
| +003+ | 6.1 | Dick Ellsworth | 170.7 | CHN |
| +004+ | 5.99 | Bob Friend | 174 | PIT |
| +006+ | 5.34 | Juan Marichal | 180.3 | SFN |
| +008+ | 5.15 | Larry Jackson | 166.7 | CHN |
| +009+ | 5.12 | Jim O'Toole | 172 | CIN |
| +012+ | 4.62 | Juan Pizarro | 151 | CHA |
| +019+ | 3.43 | Gary Peters | 118 | CHA |
| +024+ | 3.28 | Ken McBride | 178.7 | ANA |
| +031+ | 3.1 | Jim Bouton | 142.7 | NYA |
| +032+ | 3.04 | Ray Culp | 139.3 | PHI |
| +033+ | 3.03 | Denny Lemaster | 141 | ATL |
| +035+ | 2.94 | Joe Nuxhall | 120 | CIN |
| +036+ | 2.94 | John Buzhardt | 122.3 | CHA |
| +037+ | 2.93 | Don Drysdale | 191.7 | LAN |
| +044+ | 2.65 | Steve Barber | 151 | BAL |
| +046+ | 2.63 | Don Schwall | 107 | PIT |
| +048+ | 2.53 | Warren Spahn | 148 | ATL |
| +052+ | 2.43 | Dallas Green | 75.7 | PHI |
| +055+ | 2.37 | Camilo Pascual | 114 | MIN |
| +054+ | 2.37 | Tom Cheney | 127.7 | TEX |
| +059+ | 2.26 | Bobby Bolin | 74.7 | SFN |
| +060+ | 2.25 | Bob Buhl | 154 | CHN |
| +068+ | 2.08 | Cal McLish | 143 | PHI |
| +070+ | 2.01 | Milt Pappas | 130.3 | BAL |
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