| Starter | Tm | Tier | Game |
|---|---|---|---|
| Nolan Ryan | ANA | 9.03 | 197504150_ANA_MIN |
| Andy Messersmith | LAN | 5.72 | 197504130_LAN_HOU |
| Gaylord Perry | CLE | 3.78 | 197504130_CLE_MIL |
| Tom Seaver | NYN | 3.75 | 197504130_NYN_PIT |
| Phil Niekro | ATL | 3.43 | 197504150_HOU_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Pete Broberg | MIL | -4.33 | 197504130_CLE_MIL |
| Paul Splittorff | KCA | -2.53 | 197504140_OAK_KCA |
| Lerrin LaGrow | DET | -2.39 | 197504132_DET_NYA |
| Steve Stone | CHN | -2.18 | 197504130_WAS_CHN |
| Stan Bahnsen | CHA | -2 | 197504132_CHA_ANA |
Based on accumulated WAA for this season up to 1975-04-15.
| Rank | WAA | Name | IP | Tm |
|---|
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