| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | 3.93 | 199008070_BAL_OAK |
| Cleveland Indians | CLE | 1.91 | 199008050_CLE_NYA |
| Pittsburgh Pirates | PIT | 1.6 | 199008070_WAS_PIT |
| Cincinnati Reds | CIN | 1.24 | 199008070_LAN_CIN |
| Chicago White Sox | CHA | 0.82 | 199008070_CHA_KCA |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Chicago Cubs | CHN | -4.26 | 199008050_WAS_CHN |
| Atlanta Braves | ATL | -3.99 | 199008071_SDN_ATL |
| Boston Red Sox | BOS | -2.15 | 199008070_BOS_ANA |
| Detroit Tigers | DET | -1.6 | 199008050_DET_BOS |
| Philadelphia Phillies | PHI | -1.29 | 199008070_PHI_NYN |
Based on accumulated WAA for this season up to 1990-08-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +023+ | 3.76 | Mark Williamson | 76 | BAL |
| +024+ | 3.66 | Doug Jones | 55.3 | CLE |
| +025+ | 3.65 | Gregg Olson | 54 | BAL |
| +027+ | 3.62 | Dennis Eckersley | 49.3 | OAK |
| +034+ | 3.28 | Steve Farr | 79 | KCA |
| +045+ | 2.84 | Randy Myers | 59.3 | CIN |
| +046+ | 2.83 | Lee Smith | 67.3 | TOT |
| +048+ | 2.81 | Bobby Thigpen | 59 | CHA |
| +049+ | 2.69 | Rob Dibble | 64.7 | CIN |
| +054+ | 2.63 | Gene Nelson | 50 | OAK |
| +055+ | 2.58 | Greg Harris | 84.3 | SDN |
| +063+ | 2.38 | Jeff Montgomery | 67 | KCA |
| +064+ | 2.38 | John Franco | 49 | NYN |
| +069+ | 2.3 | Larry Andersen | 59.3 | HOU |
| +070+ | 2.29 | Bill Landrum | 55.3 | PIT |
| +071+ | 2.29 | Brad Arnsberg | 39 | TEX |
| +073+ | 2.28 | Tom Henke | 53 | TOR |
| +076+ | 2.24 | Barry Jones | 57.3 | CHA |
| +078+ | 2.23 | Terry Leach | 65.7 | MIN |
| +079+ | 2.21 | Keith Comstock | 42.7 | SEA |
| +082+ | 2.09 | Darrel Akerfelds | 68.7 | PHI |
| +085+ | 2.04 | Mike Schooler | 50 | SEA |
| +088+ | 2.02 | Tim Crews | 70 | LAN |
| +091+ | 1.96 | Dennis Cook | 117.7 | PHI |
| +104+ | 1.83 | Paul Gibson | 75 | DET |
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