| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dean Chance | ANA | 10.61 | 196409020_NYA_ANA |
| Don Drysdale | LAN | 7.49 | 196408310_LAN_SLN |
| Jim Bunning | PHI | 7.18 | 196409010_HOU_PHI |
| Jim Bouton | NYA | 3.33 | 196409020_NYA_ANA |
| Gary Peters | CHA | 3.24 | 196409020_DET_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Lamabe | BOS | -4.51 | 196409010_BOS_OAK |
| Al Jackson | NYN | -1.54 | 196409010_SFN_NYN |
| Orlando Pena | OAK | -1.51 | 196409020_BOS_OAK |
| Lee Stange | CLE | -1.43 | 196409020_CLE_TEX |
| Denny Lemaster | ATL | -0.75 | 196409010_ATL_SLN |
Based on accumulated WAA for this season up to 1964-09-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.55 | Dean Chance | 228.7 | ANA |
| +002+ | 9.3 | Sandy Koufax | 223 | LAN |
| +005+ | 7.55 | Jim Bunning | 224.7 | PHI |
| +007+ | 6.97 | Chris Short | 170.3 | PHI |
| +008+ | 6.92 | Juan Pizarro | 206.7 | CHA |
| +009+ | 6.91 | Don Drysdale | 260.3 | LAN |
| +014+ | 6.13 | Gary Peters | 230 | CHA |
| +015+ | 6.02 | Whitey Ford | 196.3 | NYA |
| +023+ | 5.22 | Juan Marichal | 207.7 | SFN |
| +025+ | 5 | Jim O'Toole | 176.3 | CIN |
| +027+ | 4.86 | Joe Horlen | 151.7 | CHA |
| +031+ | 4.57 | Jim Bouton | 233 | NYA |
| +032+ | 4.52 | Milt Pappas | 200 | BAL |
| +044+ | 3.63 | Bob Bruce | 167.3 | HOU |
| +052+ | 3.19 | Robin Roberts | 179 | BAL |
| +059+ | 3 | Bob Veale | 218.3 | PIT |
| +065+ | 2.78 | Wally Bunker | 159 | BAL |
| +069+ | 2.65 | Bob Miller | 114 | LAN |
| +071+ | 2.57 | Gaylord Perry | 142.7 | SFN |
| +077+ | 2.42 | Steve Ridzik | 105 | TEX |
| +078+ | 2.41 | Don Larsen | 80 | TOT |
| +082+ | 2.33 | Ron Herbel | 155 | SFN |
| +085+ | 2.22 | Jim Maloney | 175.7 | CIN |
| +088+ | 2.1 | Bob Purkey | 161.7 | CIN |
| +092+ | 2 | Mickey Lolich | 186.3 | DET |
_