| Team | Tm | Tier | Game |
|---|---|---|---|
| New York Mets | NYN | 4.56 | 199004130_NYN_WAS |
| 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 | 1.44 | 199004130_MIL_BOS |
| Team | Tm | Tier | Game |
|---|---|---|---|
| California Angels | ANA | -3.32 | 199004130_MIN_ANA |
| Detroit Tigers | DET | -2.1 | 199004130_BAL_DET |
| San Francisco Giants | SFN | -2 | 199004130_SDN_SFN |
| Seattle Mariners | SEA | -1.75 | 199004130_OAK_SEA |
| Atlanta Braves | ATL | -0.87 | 199004130_CIN_ATL |
Based on accumulated WAA for this season up to 1990-04-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| XXXXX | 0.77 | Dennis Cook | 11.3 | PHI |
| XXXXX | 0.75 | Greg Harris | 9 | SDN |
| XXXXX | 0.65 | Dan Petry | 7.7 | DET |
| XXXXX | 0.57 | Terry Leach | 6.7 | MIN |
| XXXXX | 0.52 | Duane Ward | 6 | TOR |
| XXXXX | 0.5 | Bob Tewksbury | 6 | SLN |
| XXXXX | 0.48 | Rob Dibble | 6 | CIN |
| XXXXX | 0.47 | Larry Andersen | 6 | HOU |
| XXXXX | 0.47 | Paul Assenmacher | 5.7 | CHN |
| XXXXX | 0.45 | Mark Eichhorn | 5.7 | ANA |
| XXXXX | 0.42 | Lee Guetterman | 5 | NYA |
| XXXXX | 0.37 | Greg Minton | 4.7 | ANA |
| XXXXX | 0.36 | Barry Jones | 4.3 | CHA |
| XXXXX | 0.36 | Randy O'Neal | 4.3 | SFN |
| XXXXX | 0.36 | Mitch Williams | 4.3 | CHN |
| XXXXX | 0.35 | Chuck Crim | 4 | MIL |
| XXXXX | 0.35 | Eric Gunderson | 6.7 | SFN |
| XXXXX | 0.33 | Bill Landrum | 4 | PIT |
| XXXXX | 0.33 | Dennis Eckersley | 4 | OAK |
| XXXXX | 0.33 | Ted Power | 4 | PIT |
| XXXXX | 0.32 | Les Lancaster | 6.3 | CHN |
| XXXXX | 0.31 | John Candelaria | 3.7 | MIN |
| XXXXX | 0.31 | Gene Nelson | 3.7 | OAK |
| XXXXX | 0.31 | Lee Smith | 3.7 | BOS |
| XXXXX | 0.29 | Dave Smith | 3.7 | HOU |
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