| Starter | Tm | Tier | Game |
|---|---|---|---|
| Orel Hershiser | LAN | 5.66 | 198804230_LAN_SFN |
| Nolan Ryan | HOU | 3.61 | 198804220_HOU_SDN |
| Ron Darling | NYN | 3.26 | 198804220_NYN_SLN |
| Dave Dravecky | SFN | 2.96 | 198804210_SFN_CIN |
| Floyd Bannister | KCA | 1.6 | 198804230_BAL_KCA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Steve Carlton | MIN | -7.59 | 198804230_CLE_MIN |
| Al Nipper | CHN | -4 | 198804230_CHN_PIT |
| Scott McGregor | BAL | -3.73 | 198804210_BAL_MIL |
| Bobby Witt | TEX | -3.15 | 198804230_DET_TEX |
| Steve Trout | SEA | -2.79 | 198804220_SEA_ANA |
Based on accumulated WAA for this season up to 1988-04-23.
| Rank | WAA | Name | IP | Tm |
|---|
_