| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 13.15 | 196307200_LAN_ATL |
| Bob Friend | PIT | 8.73 | 196307190_CHN_PIT |
| Dick Ellsworth | CHN | 4.98 | 196307190_CHN_PIT |
| Whitey Ford | NYA | 3.09 | 196307200_CLE_NYA |
| Camilo Pascual | MIN | 2.18 | 196307180_NYA_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ray Sadecki | SLN | -3.62 | 196307180_SLN_CIN |
| Roger Craig | NYN | -2.03 | 196307190_NYN_PHI |
| Dave Wickersham | OAK | -0.97 | 196307200_BAL_OAK |
| Jim Duckworth | TEX | -0.64 | 196307190_TEX_MIN |
| Dave McNally | BAL | -0.37 | 196307190_BAL_OAK |
Based on accumulated WAA for this season up to 1963-07-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.12 | Sandy Koufax | 179.7 | LAN |
| +003+ | 6.14 | Dick Ellsworth | 170.7 | CHN |
| +004+ | 6.03 | Bob Friend | 174 | PIT |
| +006+ | 5.37 | Jim O'Toole | 168 | CIN |
| +008+ | 5.29 | Juan Marichal | 180.3 | SFN |
| +009+ | 5.19 | Larry Jackson | 166.7 | CHN |
| +013+ | 4.03 | Juan Pizarro | 144 | CHA |
| +019+ | 3.41 | Gary Peters | 118 | CHA |
| +023+ | 3.24 | Ken McBride | 178.7 | ANA |
| +028+ | 3 | Ray Culp | 139.3 | PHI |
| +029+ | 2.98 | Denny Lemaster | 141 | ATL |
| +031+ | 2.97 | Don Schwall | 100.7 | PIT |
| +032+ | 2.94 | Jim Bouton | 135.7 | NYA |
| +033+ | 2.92 | John Buzhardt | 122.3 | CHA |
| +034+ | 2.91 | Joe Nuxhall | 120 | CIN |
| +039+ | 2.84 | Don Drysdale | 191.7 | LAN |
| +045+ | 2.59 | Steve Barber | 151 | BAL |
| +048+ | 2.49 | Warren Spahn | 148 | ATL |
| +052+ | 2.41 | Dallas Green | 75.7 | PHI |
| +056+ | 2.34 | Camilo Pascual | 114 | MIN |
| +057+ | 2.33 | Tom Cheney | 127.7 | TEX |
| +061+ | 2.25 | Carl Willey | 124.7 | NYN |
| +064+ | 2.23 | Bobby Bolin | 69.3 | SFN |
| +063+ | 2.23 | Bob Buhl | 153.3 | CHN |
| +065+ | 2.17 | Jack Kralick | 128.3 | TOT |
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