| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dean Chance | ANA | 14.29 | 196409110_ANA_BOS |
| Don Drysdale | LAN | 8.54 | 196409130_NYN_LAN |
| Jim Bunning | PHI | 6.8 | 196409130_PHI_SFN |
| Juan Pizarro | CHA | 4.35 | 196409130_CHA_CLE |
| Whitey Ford | NYA | 3.88 | 196409130_MIN_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Warren Spahn | ATL | -4.26 | 196409130_CIN_ATL |
| Bill Monbouquette | BOS | -3.08 | 196409110_ANA_BOS |
| Phil Regan | DET | -2.74 | 196409130_TEX_DET |
| Art Mahaffey | PHI | -1.51 | 196409120_PHI_SFN |
| Al Jackson | NYN | -1.5 | 196409120_NYN_LAN |
Based on accumulated WAA for this season up to 1964-09-13.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.6 | Dean Chance | 244.7 | ANA |
| +004+ | 8.31 | Don Drysdale | 287.3 | LAN |
| +005+ | 8.08 | Jim Bunning | 249.7 | PHI |
| +009+ | 7.22 | Chris Short | 181.7 | PHI |
| +012+ | 6.43 | Gary Peters | 247 | CHA |
| +015+ | 6.17 | Juan Pizarro | 223.7 | CHA |
| +020+ | 5.91 | Whitey Ford | 213.3 | NYA |
| +023+ | 5.76 | Juan Marichal | 224.7 | SFN |
| +025+ | 5.68 | Joe Horlen | 169.7 | CHA |
| +031+ | 5 | Milt Pappas | 218.3 | BAL |
| +035+ | 4.29 | Jim O'Toole | 187.7 | CIN |
| +037+ | 4.23 | Wally Bunker | 184 | BAL |
| +042+ | 4.03 | Bob Veale | 236 | PIT |
| +044+ | 3.89 | Jim Bouton | 243 | NYA |
| +048+ | 3.75 | Gaylord Perry | 167.3 | SFN |
| +051+ | 3.62 | Bob Purkey | 179.7 | CIN |
| +056+ | 3.51 | Don Larsen | 100 | TOT |
| +059+ | 3.36 | Mickey Lolich | 210.7 | DET |
| +068+ | 3.03 | Claude Osteen | 234 | TEX |
| +073+ | 2.89 | Bob Bruce | 175.7 | HOU |
| +074+ | 2.88 | Bob Gibson | 241.3 | SLN |
| +075+ | 2.85 | Fred Newman | 165 | ANA |
| +076+ | 2.85 | Tony Cloninger | 210.3 | ATL |
| +079+ | 2.78 | Jim Maloney | 189.7 | CIN |
| +085+ | 2.55 | Robin Roberts | 184 | BAL |
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