| Starter | Tm | Tier | Game |
|---|---|---|---|
| Wilbur Wood | CHA | 13.76 | 197304221_CHA_KCA |
| Gaylord Perry | CLE | 8.62 | 197304240_CLE_OAK |
| Tom Seaver | NYN | 5.52 | 197304221_WAS_NYN |
| Mickey Lolich | DET | 4.75 | 197304240_DET_TEX |
| Bert Blyleven | MIN | 4.45 | 197304220_TEX_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Reggie Cleveland | SLN | -5.18 | 197304221_SLN_PHI |
| Carl Morton | ATL | -3.89 | 197304240_PHI_ATL |
| Jerry Reuss | HOU | -3.43 | 197304220_SDN_HOU |
| Rich Gossage | CHA | -2.06 | 197304222_CHA_KCA |
| Steve Dunning | CLE | -1.99 | 197304222_BOS_CLE |
Based on accumulated WAA for this season up to 1973-04-24.
| Rank | WAA | Name | IP | Tm |
|---|
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