| Team | Tm | Tier | Game |
|---|---|---|---|
| New York Mets | NYN | 5.39 | 199004280_NYN_HOU |
| Boston Red Sox | BOS | 2.82 | 199004260_ANA_BOS |
| Houston Astros | HOU | 2.48 | 199004260_HOU_ATL |
| Oakland Athletics | OAK | 2.26 | 199004280_OAK_BOS |
| Cincinnati Reds | CIN | 1.76 | 199004270_WAS_CIN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| San Francisco Giants | SFN | -5.37 | 199004260_PIT_SFN |
| California Angels | ANA | -5.07 | 199004270_ANA_NYA |
| Atlanta Braves | ATL | -2.76 | 199004260_HOU_ATL |
| Detroit Tigers | DET | -1.43 | 199004270_MIL_DET |
| St. Louis Cardinals | SLN | -0.95 | 199004280_SLN_SFN |
Based on accumulated WAA for this season up to 1990-04-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +014+ | 1.41 | Duane Ward | 15.7 | TOR |
| +020+ | 1.28 | Paul Assenmacher | 16.7 | CHN |
| XXXXX | 1.08 | Rob Dibble | 12.3 | CIN |
| XXXXX | 1.07 | Mitch Williams | 12 | CHN |
| XXXXX | 1.02 | Terry Leach | 11.3 | MIN |
| XXXXX | 0.94 | Ted Power | 10.7 | PIT |
| XXXXX | 0.93 | Mark Eichhorn | 15.3 | ANA |
| XXXXX | 0.92 | Greg Harris | 15 | SDN |
| XXXXX | 0.83 | Gregg Olson | 9.7 | BAL |
| XXXXX | 0.8 | Dan Petry | 13.7 | DET |
| XXXXX | 0.78 | Dave Smith | 11.3 | HOU |
| XXXXX | 0.75 | Juan Agosto | 11 | HOU |
| XXXXX | 0.73 | Dennis Eckersley | 8.7 | OAK |
| XXXXX | 0.71 | Ken Dayley | 8 | SLN |
| XXXXX | 0.7 | Bill Landrum | 10.3 | PIT |
| XXXXX | 0.68 | Mike Henneman | 12.3 | DET |
| XXXXX | 0.68 | Tim Crews | 10 | LAN |
| XXXXX | 0.65 | Jeff Reardon | 7.3 | BOS |
| XXXXX | 0.65 | Bill Swift | 12 | SEA |
| XXXXX | 0.62 | Bill Sampen | 7 | WAS |
| XXXXX | 0.62 | Doug Jones | 6.7 | CLE |
| XXXXX | 0.62 | Jeff Brantley | 14.3 | SFN |
| XXXXX | 0.57 | Dave Wells | 8.7 | TOR |
| XXXXX | 0.56 | Bob Patterson | 8.7 | PIT |
| XXXXX | 0.55 | Larry Andersen | 8.7 | HOU |
_