| Team | Tm | Tier | Game |
|---|---|---|---|
| New York Mets | NYN | 3.39 | 199005061_HOU_NYN |
| Houston Astros | HOU | 2.9 | 199005061_HOU_NYN |
| Oakland Athletics | OAK | 2.75 | 199005060_BOS_OAK |
| Cincinnati Reds | CIN | 2.24 | 199005060_CIN_SLN |
| Toronto Blue Jays | TOR | 0.71 | 199005060_DET_TOR |
| Team | Tm | Tier | Game |
|---|---|---|---|
| San Francisco Giants | SFN | -3.48 | 199005060_SFN_WAS |
| California Angels | ANA | -2.65 | 199005060_NYA_ANA |
| Atlanta Braves | ATL | -1.44 | 199005061_ATL_PIT |
| Seattle Mariners | SEA | -0.86 | 199005060_BAL_SEA |
| Detroit Tigers | DET | -0.82 | 199005060_DET_TOR |
Based on accumulated WAA for this season up to 1990-05-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +019+ | 1.48 | Rob Dibble | 16.7 | CIN |
| +023+ | 1.44 | Paul Assenmacher | 23 | CHN |
| +025+ | 1.38 | Mark Eichhorn | 20.3 | ANA |
| +028+ | 1.3 | Juan Agosto | 17.3 | HOU |
| +027+ | 1.3 | Terry Leach | 14.3 | MIN |
| +032+ | 1.26 | Mitch Williams | 14 | CHN |
| +034+ | 1.25 | Gregg Olson | 14.3 | BAL |
| XXXXX | 1.23 | Doug Jones | 13.3 | CLE |
| XXXXX | 1.22 | Duane Ward | 18 | TOR |
| XXXXX | 1.14 | Greg Harris | 19.7 | SDN |
| XXXXX | 1.13 | Don Carman | 14.7 | PHI |
| XXXXX | 1.06 | Dennis Eckersley | 12.3 | OAK |
| XXXXX | 1.05 | Ted Power | 11.7 | PIT |
| XXXXX | 1.02 | Wayne Edwards | 14 | CHA |
| XXXXX | 0.99 | Bobby Ojeda | 16 | NYN |
| XXXXX | 0.93 | Bill Landrum | 12.7 | PIT |
| XXXXX | 0.93 | Jeff Reardon | 10.3 | BOS |
| XXXXX | 0.92 | Larry Andersen | 15.3 | HOU |
| XXXXX | 0.85 | Ken Dayley | 9.3 | SLN |
| XXXXX | 0.8 | Danny Darwin | 14 | HOU |
| XXXXX | 0.78 | Ken Patterson | 13.7 | CHA |
| XXXXX | 0.78 | Barry Jones | 11.3 | CHA |
| XXXXX | 0.78 | Mike Witt | 18.3 | ANA |
| XXXXX | 0.76 | Scott Radinsky | 8.7 | CHA |
| XXXXX | 0.76 | Keith Comstock | 10.7 | SEA |
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