| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dean Chance | ANA | 12.62 | 196409071_BOS_ANA |
| Jim Bunning | PHI | 6.95 | 196409050_SFN_PHI |
| Gary Peters | CHA | 3.96 | 196409061_CLE_CHA |
| Jim O'Toole | CIN | 3.33 | 196409071_CIN_SLN |
| Juan Marichal | SFN | 3.19 | 196409060_SFN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Lamabe | BOS | -4.58 | 196409050_BOS_MIN |
| Ken McBride | ANA | -2.57 | 196409072_BOS_ANA |
| Orlando Pena | OAK | -1.79 | 196409071_BAL_OAK |
| Dick Donovan | CLE | -1.47 | 196409062_CLE_CHA |
| Jack Fisher | NYN | -1.29 | 196409072_HOU_NYN |
Based on accumulated WAA for this season up to 1964-09-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.27 | Dean Chance | 237.7 | ANA |
| +002+ | 9.34 | Sandy Koufax | 223 | LAN |
| +005+ | 7.7 | Don Drysdale | 269.3 | LAN |
| +006+ | 7.67 | Jim Bunning | 233.7 | PHI |
| +008+ | 7.25 | Juan Pizarro | 213.7 | CHA |
| +010+ | 6.74 | Chris Short | 172.7 | PHI |
| +013+ | 6.39 | Gary Peters | 238.7 | CHA |
| +018+ | 5.89 | Whitey Ford | 202.7 | NYA |
| +025+ | 5.37 | Juan Marichal | 216.7 | SFN |
| +026+ | 5.34 | Milt Pappas | 209.3 | BAL |
| +028+ | 5.24 | Joe Horlen | 161.7 | CHA |
| +029+ | 5.11 | Jim O'Toole | 182.3 | CIN |
| +034+ | 4.55 | Jim Bouton | 240.7 | NYA |
| +042+ | 3.89 | Wally Bunker | 177 | BAL |
| +050+ | 3.55 | Bob Veale | 227.3 | PIT |
| +057+ | 3.26 | Gaylord Perry | 158.3 | SFN |
| +060+ | 3.05 | Don Larsen | 92 | TOT |
| +061+ | 3.03 | Bob Bruce | 169.7 | HOU |
| +065+ | 2.87 | Bob Purkey | 170.7 | CIN |
| +066+ | 2.84 | Robin Roberts | 182 | BAL |
| +069+ | 2.77 | Mickey Lolich | 195.3 | DET |
| +080+ | 2.56 | Tony Cloninger | 201.3 | ATL |
| +082+ | 2.42 | Steve Ridzik | 105 | TEX |
| +083+ | 2.4 | Claude Osteen | 216 | TEX |
| +086+ | 2.32 | Jim Maloney | 181.7 | CIN |
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