| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roger Clemens | BOS | 6.13 | 198804090_BOS_TEX |
| Jack Morris | DET | 4.05 | 198804090_DET_KCA |
| Nolan Ryan | HOU | 2.54 | 198804080_HOU_CIN |
| Jimmy Key | TOR | 2.25 | 198804090_TOR_MIN |
| Danny Cox | SLN | 1.47 | 198804080_PIT_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Juan Nieves | MIL | -3.42 | 198804080_MIL_NYA |
| Jamie Moyer | CHN | -2.77 | 198804080_CHN_WAS |
| Jose Guzman | TEX | -1.86 | 198804070_CLE_TEX |
| Mike Boddicker | BAL | -1.3 | 198804090_BAL_CLE |
| Scott Bailes | CLE | -1.21 | 198804080_BAL_CLE |
Based on accumulated WAA for this season up to 1988-04-09.
| Rank | WAA | Name | IP | Tm |
|---|
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