| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 12.89 | 198804240_BOS_MIL |
| Orel Hershiser | LAN | 5.66 | 198804230_LAN_SFN |
| Ted Higuera | MIL | 5.62 | 198804240_BOS_MIL |
| Jack Morris | DET | 4.09 | 198804240_DET_TEX |
| Nolan Ryan | HOU | 3.61 | 198804220_HOU_SDN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Steve Carlton | MIN | -7.59 | 198804230_CLE_MIN |
| Al Nipper | CHN | -4 | 198804230_CHN_PIT |
| Bobby Witt | TEX | -3.15 | 198804230_DET_TEX |
| Steve Trout | SEA | -2.79 | 198804220_SEA_ANA |
| Dan Petry | ANA | -2.11 | 198804230_SEA_ANA |
Based on accumulated WAA for this season up to 1988-04-24.
| Rank | WAA | Name | IP | Tm |
|---|
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