| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | 4.21 | 199008080_BAL_OAK |
| Cincinnati Reds | CIN | 2.3 | 199008080_LAN_CIN |
| Pittsburgh Pirates | PIT | 1.83 | 199008080_WAS_PIT |
| Chicago White Sox | CHA | 1.26 | 199008080_CHA_KCA |
| Houston Astros | HOU | 0.67 | 199008070_SFN_HOU |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Atlanta Braves | ATL | -4.71 | 199008080_SDN_ATL |
| Boston Red Sox | BOS | -2.18 | 199008080_BOS_ANA |
| Detroit Tigers | DET | -1.65 | 199008080_DET_TOR |
| Chicago Cubs | CHN | -1.42 | 199008080_SLN_CHN |
| Philadelphia Phillies | PHI | -1.29 | 199008070_PHI_NYN |
Based on accumulated WAA for this season up to 1990-08-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +022+ | 3.82 | Mark Williamson | 76.7 | BAL |
| +023+ | 3.8 | Gregg Olson | 55.7 | BAL |
| +026+ | 3.62 | Dennis Eckersley | 49.3 | OAK |
| +030+ | 3.54 | Doug Jones | 56.3 | CLE |
| +036+ | 3.28 | Steve Farr | 79 | KCA |
| +044+ | 2.84 | Randy Myers | 59.3 | CIN |
| +047+ | 2.81 | Bobby Thigpen | 59 | CHA |
| +048+ | 2.72 | Gene Nelson | 51 | OAK |
| +050+ | 2.69 | Rob Dibble | 64.7 | CIN |
| +052+ | 2.68 | Lee Smith | 68.3 | TOT |
| +055+ | 2.58 | Greg Harris | 84.3 | SDN |
| +061+ | 2.38 | Jeff Montgomery | 67 | KCA |
| +062+ | 2.38 | John Franco | 49 | NYN |
| +067+ | 2.3 | Larry Andersen | 59.3 | HOU |
| +068+ | 2.29 | Bill Landrum | 55.3 | PIT |
| +070+ | 2.29 | Brad Arnsberg | 39 | TEX |
| +071+ | 2.28 | Tom Henke | 53 | TOR |
| +073+ | 2.24 | Barry Jones | 57.3 | CHA |
| +076+ | 2.23 | Terry Leach | 65.7 | MIN |
| +083+ | 2.1 | Darrel Akerfelds | 68.7 | PHI |
| +086+ | 2.04 | Mike Schooler | 50 | SEA |
| +088+ | 2.01 | Tim Crews | 70 | LAN |
| +091+ | 1.97 | Dennis Cook | 117.7 | PHI |
| +101+ | 1.83 | Bob Patterson | 75.7 | PIT |
| +102+ | 1.82 | Keith Comstock | 43 | SEA |
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