| Team | Tm | Tier | Game |
|---|---|---|---|
| New York Mets | NYN | 4.04 | 199005080_SFN_NYN |
| Houston Astros | HOU | 2.9 | 199005061_HOU_NYN |
| Oakland Athletics | OAK | 2.83 | 199005070_NYA_OAK |
| Cincinnati Reds | CIN | 2.35 | 199005070_CIN_SLN |
| Kansas City Royals | KCA | 0.73 | 199005080_KCA_TEX |
| Team | Tm | Tier | Game |
|---|---|---|---|
| San Francisco Giants | SFN | -4.79 | 199005080_SFN_NYN |
| California Angels | ANA | -2.65 | 199005060_NYA_ANA |
| Atlanta Braves | ATL | -1.47 | 199005080_ATL_CHN |
| Detroit Tigers | DET | -1.34 | 199005080_DET_MIL |
| Montreal Expos | WAS | -1.01 | 199005080_LAN_WAS |
Based on accumulated WAA for this season up to 1990-05-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +025+ | 1.48 | Rob Dibble | 16.7 | CIN |
| +026+ | 1.48 | Juan Agosto | 19.3 | HOU |
| +030+ | 1.34 | Duane Ward | 19.3 | TOR |
| +032+ | 1.3 | Terry Leach | 14.3 | MIN |
| +034+ | 1.29 | Mark Eichhorn | 21.7 | ANA |
| XXXXX | 1.23 | Gregg Olson | 16.3 | BAL |
| XXXXX | 1.22 | Doug Jones | 13.3 | CLE |
| XXXXX | 1.17 | Ted Power | 13 | PIT |
| XXXXX | 1.14 | Bill Sampen | 15.3 | WAS |
| XXXXX | 1.12 | Don Carman | 14.7 | PHI |
| XXXXX | 1.07 | Dennis Eckersley | 12.3 | OAK |
| XXXXX | 1.03 | Greg Harris | 20.7 | SDN |
| XXXXX | 1.01 | Mitch Williams | 16 | CHN |
| XXXXX | 0.99 | Bobby Ojeda | 16 | NYN |
| XXXXX | 0.99 | Jeff Montgomery | 23 | KCA |
| XXXXX | 0.98 | Larry Andersen | 16 | HOU |
| XXXXX | 0.95 | Danny Darwin | 15.7 | HOU |
| XXXXX | 0.94 | Paul Assenmacher | 24.7 | CHN |
| XXXXX | 0.93 | Bill Landrum | 12.7 | PIT |
| XXXXX | 0.93 | Jeff Reardon | 10.3 | BOS |
| XXXXX | 0.9 | Bob Patterson | 14.7 | PIT |
| XXXXX | 0.85 | Scott Radinsky | 9.7 | CHA |
| XXXXX | 0.85 | Ken Dayley | 9.3 | SLN |
| XXXXX | 0.83 | Dan Schatzeder | 16.7 | HOU |
| XXXXX | 0.82 | Kevin Appier | 11.7 | KCA |
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