| Starter | Tm | Tier | Game |
|---|---|---|---|
| Nolan Ryan | ANA | 5.91 | 197504110_CHA_ANA |
| Andy Messersmith | LAN | 5.72 | 197504130_LAN_HOU |
| Bert Blyleven | MIN | 4.82 | 197504120_MIN_KCA |
| Gaylord Perry | CLE | 3.78 | 197504130_CLE_MIL |
| Tom Seaver | NYN | 3.75 | 197504130_NYN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Pete Broberg | MIL | -4.33 | 197504130_CLE_MIL |
| Mickey Lolich | DET | -2.43 | 197504110_DET_NYA |
| Steve Stone | CHN | -2.18 | 197504130_WAS_CHN |
| Stan Bahnsen | CHA | -2 | 197504132_CHA_ANA |
| Fritz Peterson | CLE | -1.79 | 197504120_CLE_MIL |
Based on accumulated WAA for this season up to 1975-04-13.
| Rank | WAA | Name | IP | Tm |
|---|
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