| Starter | Tm | Tier | Game |
|---|---|---|---|
| Nolan Ryan | ANA | 10 | 197504200_ANA_CHA |
| Bert Blyleven | MIN | 7.08 | 197504201_MIN_OAK |
| Don Sutton | LAN | 4.88 | 197504190_SFN_LAN |
| Jon Matlack | NYN | 4.23 | 197504201_CHN_NYN |
| Phil Niekro | ATL | 4.19 | 197504200_SDN_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Fritz Peterson | CLE | -2.97 | 197504200_MIL_CLE |
| Paul Splittorff | KCA | -2.61 | 197504190_KCA_TEX |
| Jim Bibby | TEX | -2.18 | 197504210_TEX_OAK |
| Mickey Lolich | DET | -1.74 | 197504190_NYA_DET |
| Clay Kirby | CIN | -1.72 | 197504202_HOU_CIN |
Based on accumulated WAA for this season up to 1975-04-21.
| Rank | WAA | Name | IP | Tm |
|---|
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