| Starter | Tm | Tier | Game |
|---|---|---|---|
| Don Drysdale | LAN | 7.79 | 196409090_LAN_SFN |
| Jim Bunning | PHI | 7.53 | 196409090_SLN_PHI |
| Juan Pizarro | CHA | 5.84 | 196409090_CHA_MIN |
| Whitey Ford | NYA | 4.7 | 196409090_NYA_DET |
| Milt Pappas | BAL | 3.32 | 196409100_BAL_TEX |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Lamabe | BOS | -6.93 | 196409100_BOS_CLE |
| Art Mahaffey | PHI | -1.01 | 196409080_LAN_PHI |
| Mudcat Grant | MIN | -0.34 | 196409090_CHA_MIN |
| Buster Narum | TEX | -0.23 | 196409091_BAL_TEX |
| Dennis Ribant | NYN | -0.13 | 196409100_ATL_NYN |
Based on accumulated WAA for this season up to 1964-09-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.26 | Dean Chance | 237.7 | ANA |
| +004+ | 8.45 | Don Drysdale | 278.3 | LAN |
| +006+ | 7.49 | Jim Bunning | 239.7 | PHI |
| +008+ | 7.25 | Chris Short | 181.7 | PHI |
| +012+ | 6.52 | Juan Pizarro | 217.7 | CHA |
| +014+ | 6.38 | Gary Peters | 238.7 | CHA |
| +022+ | 5.69 | Joe Horlen | 169.7 | CHA |
| +023+ | 5.61 | Whitey Ford | 209.3 | NYA |
| +027+ | 5.36 | Juan Marichal | 216.7 | SFN |
| +029+ | 5.11 | Jim O'Toole | 182.3 | CIN |
| +030+ | 5.04 | Milt Pappas | 218.3 | BAL |
| +034+ | 4.57 | Jim Bouton | 240.7 | NYA |
| +041+ | 4.06 | Bob Veale | 236 | PIT |
| +043+ | 3.89 | Wally Bunker | 177 | BAL |
| +052+ | 3.63 | Bob Purkey | 179.7 | CIN |
| +054+ | 3.51 | Mickey Lolich | 204.3 | DET |
| +060+ | 3.25 | Gaylord Perry | 158.3 | SFN |
| +063+ | 3.05 | Don Larsen | 92 | TOT |
| +066+ | 2.93 | Bob Bruce | 175.7 | HOU |
| +067+ | 2.89 | Tony Cloninger | 210.3 | ATL |
| +080+ | 2.58 | Robin Roberts | 184 | BAL |
| +081+ | 2.51 | Claude Osteen | 225 | TEX |
| +087+ | 2.33 | Jim Maloney | 181.7 | CIN |
| +094+ | 2.15 | Bob Gibson | 232.3 | SLN |
| +096+ | 2.12 | Aubrey Gatewood | 53 | ANA |
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