| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dean Chance | ANA | 11.18 | 196408250_ANA_OAK |
| Jim Bunning | PHI | 6.48 | 196408230_PIT_PHI |
| Juan Pizarro | CHA | 5.68 | 196408250_MIN_CHA |
| Whitey Ford | NYA | 4.39 | 196408250_TEX_NYA |
| Juan Marichal | SFN | 3.26 | 196408250_SFN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Warren Spahn | ATL | -3.39 | 196408230_ATL_HOU |
| Dave Morehead | BOS | -2.02 | 196408250_DET_BOS |
| Al Jackson | NYN | -1.65 | 196408250_NYN_CIN |
| Bennie Daniels | TEX | -1.33 | 196408231_OAK_TEX |
| Lew Burdette | CHN | -0.87 | 196408240_CHN_HOU |
Based on accumulated WAA for this season up to 1964-08-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.5 | Dean Chance | 210.7 | ANA |
| +002+ | 9.3 | Sandy Koufax | 223 | LAN |
| +004+ | 7.42 | Juan Pizarro | 202 | CHA |
| +006+ | 7.16 | Jim Bunning | 207.3 | PHI |
| +008+ | 6.62 | Chris Short | 151 | PHI |
| +009+ | 6.27 | Don Drysdale | 242.3 | LAN |
| +019+ | 5.42 | Whitey Ford | 189 | NYA |
| +024+ | 4.92 | Gary Peters | 212.3 | CHA |
| +025+ | 4.64 | Jim O'Toole | 158.3 | CIN |
| +030+ | 4.45 | Juan Marichal | 198.7 | SFN |
| +031+ | 4.38 | Jim Bouton | 217.7 | NYA |
| +033+ | 4.02 | Bob Bruce | 159.3 | HOU |
| +035+ | 3.88 | Joe Horlen | 137 | CHA |
| +038+ | 3.68 | Bobby Bolin | 143.7 | SFN |
| +052+ | 3.04 | Milt Pappas | 182 | BAL |
| +060+ | 2.78 | Fred Newman | 145.7 | ANA |
| +063+ | 2.66 | Bob Veale | 208.3 | PIT |
| +067+ | 2.46 | Robin Roberts | 165 | BAL |
| +069+ | 2.41 | John Buzhardt | 142 | CHA |
| +070+ | 2.41 | Bob Miller | 111 | LAN |
| +072+ | 2.38 | Ron Herbel | 145.7 | SFN |
| +075+ | 2.33 | Wally Bunker | 151 | BAL |
| +077+ | 2.31 | Steve Ridzik | 101 | TEX |
| +079+ | 2.28 | Gaylord Perry | 134.3 | SFN |
| +090+ | 2.1 | Bob Purkey | 155.7 | CIN |
_