| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 14.02 | 196408161_SLN_LAN |
| Juan Pizarro | CHA | 5.53 | 196408170_NYA_CHA |
| Chris Short | PHI | 4.29 | 196408170_CHN_PHI |
| Jim Bouton | NYA | 2.14 | 196408150_NYA_BAL |
| Bob Veale | PIT | 2.02 | 196408170_PIT_NYN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Morehead | BOS | -2.3 | 196408150_CHA_BOS |
| Ken McBride | ANA | -2.3 | 196408150_ANA_TEX |
| Frank Lary | ATL | -1.3 | 196408161_ATL_SFN |
| Art Mahaffey | PHI | -1.1 | 196408160_PHI_NYN |
| Mudcat Grant | MIN | -1.04 | 196408160_CLE_MIN |
Based on accumulated WAA for this season up to 1964-08-17.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.48 | Sandy Koufax | 223 | LAN |
| +002+ | 8.46 | Dean Chance | 188.3 | ANA |
| +005+ | 6.86 | Jim Bunning | 194.3 | PHI |
| +007+ | 6.51 | Juan Pizarro | 185 | CHA |
| +008+ | 5.98 | Chris Short | 142 | PHI |
| +010+ | 5.85 | Don Drysdale | 227.3 | LAN |
| +011+ | 5.79 | Whitey Ford | 178 | NYA |
| +025+ | 4.52 | Juan Marichal | 193.7 | SFN |
| +027+ | 4.46 | Gary Peters | 195.7 | CHA |
| +031+ | 4.03 | Joe Horlen | 128 | CHA |
| +034+ | 3.77 | Jim Bouton | 202.3 | NYA |
| +036+ | 3.71 | Jim O'Toole | 143.3 | CIN |
| +039+ | 3.43 | Bob Bruce | 151.3 | HOU |
| +044+ | 3.23 | Fred Newman | 136 | ANA |
| +047+ | 3.09 | Bob Veale | 200.3 | PIT |
| +050+ | 2.89 | Ron Herbel | 136 | SFN |
| +055+ | 2.74 | Bobby Bolin | 126.7 | SFN |
| +057+ | 2.72 | Milt Pappas | 167.7 | BAL |
| +063+ | 2.52 | Wally Bunker | 137.7 | BAL |
| +068+ | 2.45 | Gaylord Perry | 125.7 | SFN |
| +071+ | 2.42 | Robin Roberts | 159 | BAL |
| +074+ | 2.36 | Bo Belinsky | 135.7 | ANA |
| +084+ | 2.22 | Jack Kralick | 143.7 | CLE |
| +086+ | 2.13 | Jim Maloney | 164.3 | CIN |
| +087+ | 2.1 | John Buzhardt | 130 | CHA |
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