| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dean Chance | ANA | 15.87 | 196409201_ANA_BAL |
| Jim Bunning | PHI | 5.41 | 196409200_PHI_LAN |
| Gary Peters | CHA | 4.57 | 196409200_TEX_CHA |
| Juan Marichal | SFN | 4.25 | 196409190_PIT_SFN |
| Wally Bunker | BAL | 1.96 | 196409202_ANA_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| John O'Donoghue | OAK | -1.97 | 196409200_OAK_NYA |
| Earl Wilson | BOS | -1.87 | 196409190_MIN_BOS |
| Art Mahaffey | PHI | -1.61 | 196409210_CIN_PHI |
| Jack Fisher | NYN | -1.03 | 196409190_NYN_HOU |
| Lee Stange | CLE | -0.71 | 196409201_CLE_DET |
Based on accumulated WAA for this season up to 1964-09-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.86 | Dean Chance | 260.3 | ANA |
| +004+ | 8.89 | Don Drysdale | 296.3 | LAN |
| +007+ | 7.8 | Jim Bunning | 263 | PHI |
| +009+ | 7.61 | Chris Short | 197.7 | PHI |
| +011+ | 6.83 | Joe Horlen | 186.7 | CHA |
| +012+ | 6.79 | Gary Peters | 262.3 | CHA |
| +016+ | 6.62 | Whitey Ford | 222.3 | NYA |
| +018+ | 6.15 | Juan Marichal | 242.7 | SFN |
| +028+ | 5.41 | Juan Pizarro | 225.3 | CHA |
| +033+ | 4.69 | Milt Pappas | 230.3 | BAL |
| +034+ | 4.68 | Wally Bunker | 200 | BAL |
| +035+ | 4.5 | Bob Veale | 252 | PIT |
| +037+ | 4.28 | Jim Bouton | 258.3 | NYA |
| +050+ | 3.91 | Jim O'Toole | 196 | CIN |
| +053+ | 3.74 | Gaylord Perry | 185.3 | SFN |
| +059+ | 3.49 | Don Larsen | 105 | TOT |
| +062+ | 3.28 | Bob Bruce | 190.7 | HOU |
| +071+ | 3 | Claude Osteen | 241.3 | TEX |
| +074+ | 2.97 | Mickey Lolich | 221.7 | DET |
| +079+ | 2.88 | Bob Gibson | 259 | SLN |
| +083+ | 2.83 | Robin Roberts | 190.3 | BAL |
| +084+ | 2.63 | Jim Maloney | 195.7 | CIN |
| +086+ | 2.5 | Jack Kralick | 182.3 | CLE |
| +087+ | 2.46 | Fred Newman | 170.3 | ANA |
| +088+ | 2.41 | Bob Purkey | 183 | CIN |
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