| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 6.27 | 196404220_LAN_SLN |
| Whitey Ford | NYA | 4.37 | 196404220_NYA_CHA |
| Ernie Broglio | SLN | 2.4 | 196404230_LAN_SLN |
| Robin Roberts | BAL | 1.65 | 196404232_BOS_BAL |
| Dean Chance | ANA | 1.18 | 196404210_DET_ANA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Owens | HOU | -3.68 | 196404210_CIN_HOU |
| Frank Lary | DET | -1.98 | 196404210_DET_ANA |
| Carl Bouldin | TEX | -1.19 | 196404230_TEX_MIN |
| Art Mahaffey | PHI | -1.16 | 196404230_PIT_PHI |
| Mudcat Grant | CLE | -0.92 | 196404210_CLE_OAK |
Based on accumulated WAA for this season up to 1964-04-23.
| Rank | WAA | Name | IP | Tm |
|---|
_