| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dean Chance | ANA | 14.03 | 196409250_MIN_ANA |
| Jim Bunning | PHI | 6.33 | 196409240_ATL_PHI |
| Joe Horlen | CHA | 4.72 | 196409230_CHA_ANA |
| Juan Marichal | SFN | 3.95 | 196409230_SFN_HOU |
| Wally Bunker | BAL | 2.18 | 196409250_BAL_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Phil Regan | DET | -2.39 | 196409230_BAL_DET |
| John O'Donoghue | OAK | -2.07 | 196409250_CHA_OAK |
| Earl Wilson | BOS | -1.75 | 196409250_BOS_DET |
| Al Jackson | NYN | -1.56 | 196409251_CIN_NYN |
| Lee Stange | CLE | -0.68 | 196409250_BAL_CLE |
Based on accumulated WAA for this season up to 1964-09-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.5 | Dean Chance | 271.3 | ANA |
| +003+ | 9.31 | Don Drysdale | 304.3 | LAN |
| +008+ | 7.54 | Jim Bunning | 269 | PHI |
| +010+ | 7.07 | Joe Horlen | 192.7 | CHA |
| +013+ | 6.91 | Whitey Ford | 229.3 | NYA |
| +014+ | 6.83 | Chris Short | 209.7 | PHI |
| +015+ | 6.73 | Gary Peters | 262.3 | CHA |
| +017+ | 6.62 | Juan Marichal | 251.7 | SFN |
| +028+ | 5.47 | Juan Pizarro | 234.3 | CHA |
| +034+ | 4.9 | Milt Pappas | 238.3 | BAL |
| +035+ | 4.76 | Bob Veale | 261 | PIT |
| +042+ | 4.23 | Wally Bunker | 205 | BAL |
| +043+ | 4.22 | Gaylord Perry | 194.3 | SFN |
| +044+ | 4.19 | Jim O'Toole | 205 | CIN |
| +056+ | 3.51 | Don Larsen | 110.7 | TOT |
| +057+ | 3.47 | Jim Bouton | 262.3 | NYA |
| +062+ | 3.32 | Jim Maloney | 204.7 | CIN |
| +065+ | 3.21 | Bob Bruce | 190.7 | HOU |
| +068+ | 3.15 | Bob Gibson | 268 | SLN |
| +069+ | 3.13 | Fred Newman | 179 | ANA |
| +073+ | 3 | Claude Osteen | 249.7 | TEX |
| +076+ | 2.9 | Mickey Lolich | 221.7 | DET |
| +080+ | 2.8 | Robin Roberts | 190.3 | BAL |
| +085+ | 2.68 | Bob Purkey | 189.3 | CIN |
| +091+ | 2.34 | Sam McDowell | 163 | CLE |
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