| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | 3.99 | 199008240_OAK_DET |
| Kansas City Royals | KCA | 1.45 | 199008250_SEA_KCA |
| Pittsburgh Pirates | PIT | 0.91 | 199008230_CIN_PIT |
| Chicago White Sox | CHA | 0.73 | 199008240_ANA_CHA |
| Seattle Mariners | SEA | 0.59 | 199008250_SEA_KCA |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Atlanta Braves | ATL | -9.11 | 199008250_CHN_ATL |
| Boston Red Sox | BOS | -2.22 | 199008250_BOS_TOR |
| Milwaukee Brewers | MIL | -2.16 | 199008230_MIL_NYA |
| Philadelphia Phillies | PHI | -0.95 | 199008250_PHI_SFN |
| Chicago Cubs | CHN | -0.92 | 199008240_CHN_ATL |
Based on accumulated WAA for this season up to 1990-08-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +017+ | 4.46 | Jeff Brantley | 82 | SFN |
| +020+ | 4.31 | Bill Swift | 108 | SEA |
| +025+ | 4.14 | Dennis Eckersley | 55.3 | OAK |
| +026+ | 4.11 | Steve Farr | 93.3 | KCA |
| +027+ | 4.08 | Doug Jones | 62.7 | CLE |
| +034+ | 3.57 | Gregg Olson | 62.7 | BAL |
| +038+ | 3.39 | Randy Myers | 68.3 | CIN |
| +041+ | 3.34 | Edwin Nunez | 64.3 | DET |
| +046+ | 3.19 | Brad Arnsberg | 49.3 | TEX |
| +047+ | 3.18 | Rob Dibble | 75.3 | CIN |
| +049+ | 3.15 | Larry Andersen | 71.7 | HOU |
| +050+ | 3.15 | Gene Nelson | 60.7 | OAK |
| +052+ | 3.1 | Jeff Montgomery | 75.3 | KCA |
| +057+ | 2.96 | Lee Smith | 74.7 | TOT |
| +060+ | 2.84 | Greg Harris | 93.3 | SDN |
| +066+ | 2.7 | Tom Henke | 60.3 | TOR |
| +067+ | 2.68 | Bobby Thigpen | 69.7 | CHA |
| +069+ | 2.64 | John Franco | 57 | NYN |
| +078+ | 2.41 | Barry Jones | 64.3 | CHA |
| +080+ | 2.37 | Tim Crews | 79.3 | LAN |
| +085+ | 2.21 | Dan Schatzeder | 59 | HOU |
| +090+ | 2.13 | Mike Schooler | 56 | SEA |
| +091+ | 2.08 | Craig Lefferts | 70.7 | SDN |
| +095+ | 2.04 | Terry Leach | 70.7 | MIN |
| +099+ | 1.99 | Jay Howell | 52 | LAN |
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