| Team | Tm | Tier | Game |
|---|---|---|---|
| New York Mets | NYN | 3.62 | 199004240_ATL_NYN |
| Boston Red Sox | BOS | 3.02 | 199004240_ANA_BOS |
| Cincinnati Reds | CIN | 2.46 | 199004240_CIN_PHI |
| Houston Astros | HOU | 2.23 | 199004250_WAS_HOU |
| Kansas City Royals | KCA | 1.72 | 199004230_KCA_BAL |
| Team | Tm | Tier | Game |
|---|---|---|---|
| California Angels | ANA | -6.12 | 199004240_ANA_BOS |
| San Francisco Giants | SFN | -5.08 | 199004240_PIT_SFN |
| Atlanta Braves | ATL | -3.12 | 199004240_ATL_NYN |
| Detroit Tigers | DET | -1.65 | 199004250_DET_MIN |
| Baltimore Orioles | BAL | -0.78 | 199004250_OAK_BAL |
Based on accumulated WAA for this season up to 1990-04-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +008+ | 1.41 | Duane Ward | 15.7 | TOR |
| XXXXX | 1.13 | Paul Assenmacher | 15 | CHN |
| XXXXX | 0.99 | Terry Leach | 11 | MIN |
| XXXXX | 0.96 | Brian Holman | 27 | SEA |
| XXXXX | 0.91 | Rob Dibble | 10.3 | CIN |
| XXXXX | 0.85 | Mark Eichhorn | 14.7 | ANA |
| XXXXX | 0.81 | Dan Petry | 13.7 | DET |
| XXXXX | 0.8 | Gene Nelson | 9.7 | OAK |
| XXXXX | 0.8 | Ted Power | 9 | PIT |
| XXXXX | 0.75 | Greg Harris | 13 | SDN |
| XXXXX | 0.74 | Mitch Williams | 8.3 | CHN |
| XXXXX | 0.72 | Tim Crews | 8 | LAN |
| XXXXX | 0.72 | Gregg Olson | 8.3 | BAL |
| XXXXX | 0.65 | Bob Patterson | 7.3 | PIT |
| XXXXX | 0.62 | Ken Dayley | 7 | SLN |
| XXXXX | 0.6 | Mike Henneman | 11.3 | DET |
| XXXXX | 0.58 | Dennis Eckersley | 7 | OAK |
| XXXXX | 0.57 | Bobby Ojeda | 9 | NYN |
| XXXXX | 0.57 | Dave Wells | 8.7 | TOR |
| XXXXX | 0.56 | Bill Landrum | 8.7 | PIT |
| XXXXX | 0.56 | Jeff Reardon | 6.3 | BOS |
| XXXXX | 0.55 | Dave Smith | 8.7 | HOU |
| XXXXX | 0.55 | Scott Radinsky | 6 | CHA |
| XXXXX | 0.54 | Don Carman | 6 | PHI |
| XXXXX | 0.53 | Lee Smith | 8.3 | BOS |
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