| Starter | Tm | Tier | Game |
|---|---|---|---|
| Wilbur Wood | CHA | 13.28 | 197304250_CHA_NYA |
| Tom Seaver | NYN | 6.36 | 197304270_NYN_ATL |
| Bob Gibson | SLN | 4.17 | 197304270_SFN_SLN |
| Dave McNally | BAL | 3.94 | 197304250_BAL_ANA |
| Don Wilson | HOU | 2.6 | 197304250_NYN_HOU |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Wayne Simpson | KCA | -4.83 | 197304250_MIL_KCA |
| Jerry Reuss | HOU | -3.64 | 197304260_NYN_HOU |
| Pete Broberg | TEX | -2.66 | 197304260_DET_TEX |
| Johnny Odom | OAK | -1.44 | 197304270_BAL_OAK |
| Lynn McGlothen | BOS | -1.32 | 197304250_MIN_BOS |
Based on accumulated WAA for this season up to 1973-04-27.
| Rank | WAA | Name | IP | Tm |
|---|
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