| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 8.78 | 198804140_MIL_BOS |
| Jack Morris | DET | 4.92 | 198804140_TEX_DET |
| Nolan Ryan | HOU | 3.39 | 198804120_HOU_ATL |
| Jimmy Key | TOR | 3.32 | 198804140_NYA_TOR |
| Bob Ojeda | NYN | 1.69 | 198804140_WAS_NYN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Juan Nieves | MIL | -4.41 | 198804130_MIL_BOS |
| Al Nipper | CHN | -3.93 | 198804120_CHN_SLN |
| Bobby Witt | TEX | -3.02 | 198804120_TEX_DET |
| Mike Boddicker | BAL | -2.28 | 198804140_KCA_BAL |
| Andy Hawkins | SDN | -1.96 | 198804120_LAN_SDN |
Based on accumulated WAA for this season up to 1988-04-14.
| Rank | WAA | Name | IP | Tm |
|---|
_