| Starter | Tm | Tier | Game |
|---|---|---|---|
| Don Drysdale | LAN | 7.49 | 196408310_LAN_SLN |
| Jim Bunning | PHI | 7.18 | 196409010_HOU_PHI |
| Bob Bruce | HOU | 1.72 | 196408301_HOU_CIN |
| Joe Horlen | CHA | 1.69 | 196408300_CHA_BAL |
| Robin Roberts | BAL | 1.08 | 196408300_CHA_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Lamabe | BOS | -4.51 | 196409010_BOS_OAK |
| Ken McBride | ANA | -2.38 | 196408300_DET_ANA |
| Al Jackson | NYN | -1.54 | 196409010_SFN_NYN |
| Dick Donovan | CLE | -1.21 | 196408302_CLE_OAK |
| John O'Donoghue | OAK | -1.11 | 196408301_CLE_OAK |
Based on accumulated WAA for this season up to 1964-09-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.84 | Dean Chance | 219.7 | ANA |
| +002+ | 9.38 | Sandy Koufax | 223 | LAN |
| +005+ | 7.59 | Jim Bunning | 224.7 | PHI |
| +007+ | 7 | Don Drysdale | 260.3 | LAN |
| +008+ | 6.96 | Juan Pizarro | 206.7 | CHA |
| +011+ | 6.45 | Chris Short | 161.3 | PHI |
| +012+ | 6.04 | Whitey Ford | 196.3 | NYA |
| +022+ | 5.42 | Gary Peters | 221 | CHA |
| +025+ | 4.89 | Joe Horlen | 151.7 | CHA |
| +026+ | 4.8 | Jim Bouton | 227.7 | NYA |
| +030+ | 4.51 | Juan Marichal | 198.7 | SFN |
| +037+ | 4.07 | Jim O'Toole | 164.3 | CIN |
| +042+ | 3.81 | Milt Pappas | 191 | BAL |
| +043+ | 3.65 | Bob Bruce | 167.3 | HOU |
| +052+ | 3.22 | Robin Roberts | 179 | BAL |
| +056+ | 3.09 | Bob Veale | 218.3 | PIT |
| +064+ | 2.81 | Wally Bunker | 159 | BAL |
| +070+ | 2.61 | Bob Miller | 113 | LAN |
| +071+ | 2.59 | Gaylord Perry | 142.7 | SFN |
| +076+ | 2.44 | Steve Ridzik | 105 | TEX |
| +077+ | 2.43 | Don Larsen | 80 | TOT |
| +080+ | 2.36 | Ron Herbel | 155 | SFN |
| +083+ | 2.29 | Jim Maloney | 175.7 | CIN |
| +088+ | 2.17 | Bob Purkey | 161.7 | CIN |
| +092+ | 2.02 | Mickey Lolich | 186.3 | DET |
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