| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ted Higuera | MIL | 4.09 | 198804170_NYA_MIL |
| Nolan Ryan | HOU | 3.31 | 198804170_CIN_HOU |
| Ron Darling | NYN | 2.73 | 198804170_SLN_NYN |
| Rick Rhoden | NYA | 2.36 | 198804160_NYA_MIL |
| Dave Dravecky | SFN | 2.34 | 198804160_SFN_SDN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rick Mahler | ATL | -3.62 | 198804160_ATL_LAN |
| Bobby Witt | TEX | -3.3 | 198804180_TEX_BOS |
| Mike Morgan | BAL | -2.6 | 198804160_CLE_BAL |
| Ed Whitson | SDN | -2.54 | 198804160_SFN_SDN |
| Dan Petry | ANA | -2.22 | 198804180_ANA_OAK |
Based on accumulated WAA for this season up to 1988-04-18.
| Rank | WAA | Name | IP | Tm |
|---|
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