| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dean Chance | ANA | 14.26 | 196409150_ANA_NYA |
| Jim Bunning | PHI | 7.23 | 196409160_PHI_HOU |
| Gary Peters | CHA | 3.96 | 196409160_CHA_DET |
| Juan Marichal | SFN | 3.67 | 196409150_NYN_SFN |
| Milt Pappas | BAL | 2.55 | 196409140_MIN_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Monbouquette | BOS | -2.11 | 196409160_OAK_BOS |
| John O'Donoghue | OAK | -1.6 | 196409150_OAK_BOS |
| Denny Lemaster | ATL | -1.07 | 196409160_SLN_ATL |
| Tracy Stallard | NYN | -0.5 | 196409160_NYN_SFN |
| Buster Narum | TEX | -0.36 | 196409161_TEX_CLE |
Based on accumulated WAA for this season up to 1964-09-16.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.32 | Dean Chance | 253.7 | ANA |
| +004+ | 8.27 | Don Drysdale | 287.3 | LAN |
| +006+ | 7.74 | Chris Short | 190.7 | PHI |
| +009+ | 7.16 | Jim Bunning | 254 | PHI |
| +011+ | 6.8 | Gary Peters | 254.7 | CHA |
| +015+ | 6.26 | Juan Marichal | 233.7 | SFN |
| +017+ | 6.22 | Joe Horlen | 176.7 | CHA |
| +019+ | 6.12 | Juan Pizarro | 223.7 | CHA |
| +023+ | 5.88 | Whitey Ford | 213.3 | NYA |
| +031+ | 5 | Milt Pappas | 226.3 | BAL |
| +034+ | 4.55 | Bob Veale | 245 | PIT |
| +036+ | 4.37 | Wally Bunker | 191 | BAL |
| +038+ | 4.27 | Jim O'Toole | 187.7 | CIN |
| +053+ | 3.55 | Gaylord Perry | 175.3 | SFN |
| +055+ | 3.54 | Jim Bouton | 249.3 | NYA |
| +056+ | 3.48 | Don Larsen | 100 | TOT |
| +058+ | 3.4 | Bob Gibson | 250.3 | SLN |
| +064+ | 3.27 | Bob Purkey | 180.7 | CIN |
| +063+ | 3.27 | Mickey Lolich | 217.7 | DET |
| +072+ | 3.02 | Claude Osteen | 234 | TEX |
| +075+ | 2.84 | Robin Roberts | 190.3 | BAL |
| +077+ | 2.83 | Fred Newman | 165 | ANA |
| +084+ | 2.63 | Jim Maloney | 195.7 | CIN |
| +086+ | 2.52 | Bob Bruce | 181.7 | HOU |
| +100+ | 1.99 | Jim Kaat | 226.3 | MIN |
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