| Starter | Tm | Tier | Game |
|---|---|---|---|
| Nolan Ryan | ANA | 9.03 | 197504150_ANA_MIN |
| Bert Blyleven | MIN | 7.08 | 197504160_ANA_MIN |
| Don Sutton | LAN | 4.37 | 197504150_CIN_LAN |
| Jon Matlack | NYN | 3.84 | 197504160_NYN_SLN |
| Phil Niekro | ATL | 3.43 | 197504150_HOU_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Woodie Fryman | WAS | -3.42 | 197504160_WAS_PIT |
| Paul Splittorff | KCA | -2.53 | 197504140_OAK_KCA |
| Juan Marichal | LAN | -1.77 | 197504160_CIN_LAN |
| Jim Slaton | MIL | -1.57 | 197504160_MIL_BAL |
| Clay Kirby | CIN | -1.49 | 197504150_CIN_LAN |
Based on accumulated WAA for this season up to 1975-04-16.
| Rank | WAA | Name | IP | Tm |
|---|
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