| Team | Tm | Tier | Game |
|---|---|---|---|
| New York Mets | NYN | 5.05 | 199004120_PIT_NYN |
| Kansas City Royals | KCA | 3.31 | 199004130_TOR_KCA |
| Cincinnati Reds | CIN | 1.94 | 199004130_CIN_ATL |
| Oakland Athletics | OAK | 1.8 | 199004130_OAK_SEA |
| Boston Red Sox | BOS | 1.64 | 199004120_BOS_DET |
| Team | Tm | Tier | Game |
|---|---|---|---|
| California Angels | ANA | -3.47 | 199004120_MIN_ANA |
| Detroit Tigers | DET | -2.17 | 199004120_BOS_DET |
| San Francisco Giants | SFN | -2.07 | 199004120_SFN_ATL |
| Seattle Mariners | SEA | -1.75 | 199004130_OAK_SEA |
| Atlanta Braves | ATL | -0.88 | 199004120_SFN_ATL |
Based on accumulated WAA for this season up to 1990-04-14.
| Rank | WAA | Name | IP | Tm |
|---|
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