| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 5.81 | 196404180_CIN_LAN |
| Juan Marichal | SFN | 3.65 | 196404190_CIN_SFN |
| Warren Spahn | ATL | 3.01 | 196404190_ATL_LAN |
| Camilo Pascual | MIN | 2.14 | 196404191_MIN_DET |
| Ernie Broglio | SLN | 1.75 | 196404180_SLN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ray Sadecki | SLN | -3.78 | 196404200_SLN_HOU |
| Al Jackson | NYN | -2.65 | 196404190_PIT_NYN |
| Dave Wickersham | DET | -1.76 | 196404192_MIN_DET |
| Don Schwall | PIT | -1.3 | 196404180_PIT_NYN |
| Tony Cloninger | ATL | -0.78 | 196404180_ATL_HOU |
Based on accumulated WAA for this season up to 1964-04-20.
| Rank | WAA | Name | IP | Tm |
|---|
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