| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | 4.02 | 199008220_OAK_CHA |
| Kansas City Royals | KCA | 1.35 | 199008240_SEA_KCA |
| Baltimore Orioles | BAL | 0.93 | 199008220_BAL_BOS |
| Pittsburgh Pirates | PIT | 0.91 | 199008230_CIN_PIT |
| Chicago White Sox | CHA | 0.73 | 199008240_ANA_CHA |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Atlanta Braves | ATL | -8.51 | 199008220_ATL_SLN |
| Boston Red Sox | BOS | -2.23 | 199008220_BAL_BOS |
| Milwaukee Brewers | MIL | -2.16 | 199008230_MIL_NYA |
| Chicago Cubs | CHN | -0.92 | 199008240_CHN_ATL |
| Philadelphia Phillies | PHI | -0.65 | 199008240_PHI_SFN |
Based on accumulated WAA for this season up to 1990-08-24.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +019+ | 4.28 | Jeff Brantley | 80 | SFN |
| +024+ | 4.13 | Dennis Eckersley | 55.3 | OAK |
| +025+ | 4.11 | Steve Farr | 93.3 | KCA |
| +026+ | 4.08 | Doug Jones | 62.7 | CLE |
| +029+ | 3.94 | Mark Williamson | 85.3 | BAL |
| +034+ | 3.57 | Gregg Olson | 62.7 | BAL |
| +037+ | 3.39 | Randy Myers | 68.3 | CIN |
| +044+ | 3.19 | Brad Arnsberg | 49.3 | TEX |
| +045+ | 3.18 | Rob Dibble | 75.3 | CIN |
| +048+ | 3.15 | Larry Andersen | 71.7 | HOU |
| +049+ | 3.14 | Gene Nelson | 60.7 | OAK |
| +052+ | 3.09 | Jeff Montgomery | 75.3 | KCA |
| +053+ | 3.07 | Edwin Nunez | 61.3 | DET |
| +055+ | 3.01 | Bobby Thigpen | 68.7 | CHA |
| +057+ | 2.95 | Lee Smith | 74.7 | TOT |
| +063+ | 2.83 | Greg Harris | 93.3 | SDN |
| +068+ | 2.7 | Tom Henke | 60.3 | TOR |
| +069+ | 2.66 | John Franco | 57 | NYN |
| +076+ | 2.41 | Barry Jones | 64.3 | CHA |
| +083+ | 2.22 | Tim Crews | 77.3 | LAN |
| +085+ | 2.16 | Bill Landrum | 61.3 | PIT |
| +088+ | 2.15 | Dan Schatzeder | 58.3 | HOU |
| +089+ | 2.13 | Mike Schooler | 56 | SEA |
| +092+ | 2.08 | Craig Lefferts | 70.7 | SDN |
| +095+ | 2.04 | Terry Leach | 70.7 | MIN |
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