| Starter | Tm | Tier | Game |
|---|---|---|---|
| Gaylord Perry | CLE | 8.06 | 197304280_CLE_ANA |
| Don Sutton | LAN | 7.79 | 197304280_LAN_PIT |
| Tom Seaver | NYN | 6.36 | 197304270_NYN_ATL |
| Jim Palmer | BAL | 5.56 | 197304280_BAL_OAK |
| Mickey Lolich | DET | 4.88 | 197304280_KCA_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Reggie Cleveland | SLN | -5.3 | 197304280_SFN_SLN |
| Ron Reed | ATL | -4.86 | 197304280_NYN_ATL |
| Jerry Reuss | HOU | -3.64 | 197304260_NYN_HOU |
| Steve Renko | WAS | -3.05 | 197304280_WAS_HOU |
| Pete Broberg | TEX | -2.66 | 197304260_DET_TEX |
Based on accumulated WAA for this season up to 1973-04-28.
| Rank | WAA | Name | IP | Tm |
|---|
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