| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike Scott | HOU | 6.45 | 198804100_HOU_CIN |
| Roger Clemens | BOS | 6.13 | 198804090_BOS_TEX |
| Bob Welch | OAK | 5.05 | 198804100_OAK_ANA |
| Ted Higuera | MIL | 4.07 | 198804100_MIL_NYA |
| Jack Morris | DET | 4.05 | 198804090_DET_KCA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rick Mahler | ATL | -4.22 | 198804100_LAN_ATL |
| Jerry Reuss | CHA | -3.67 | 198804100_SEA_CHA |
| Scott McGregor | BAL | -2.99 | 198804100_BAL_CLE |
| Ed Whitson | SDN | -2.24 | 198804100_SDN_SFN |
| Jeff Sellers | BOS | -2.02 | 198804100_BOS_TEX |
Based on accumulated WAA for this season up to 1988-04-11.
| Rank | WAA | Name | IP | Tm |
|---|
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