| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | 3.85 | 199008050_OAK_ANA |
| Cleveland Indians | CLE | 1.91 | 199008050_CLE_NYA |
| Cincinnati Reds | CIN | 1.52 | 199008030_SDN_CIN |
| Pittsburgh Pirates | PIT | 1.33 | 199008050_PIT_PHI |
| Chicago White Sox | CHA | 0.89 | 199008030_CHA_MIL |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Detroit Tigers | DET | -5.05 | 199008040_DET_BOS |
| Chicago Cubs | CHN | -4.66 | 199008030_WAS_CHN |
| Atlanta Braves | ATL | -2.94 | 199008030_ATL_HOU |
| Boston Red Sox | BOS | -2.39 | 199008030_DET_BOS |
| Minnesota Twins | MIN | -0.73 | 199008030_MIN_SEA |
Based on accumulated WAA for this season up to 1990-08-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +020+ | 4.02 | Jeff Brantley | 74.3 | SFN |
| +024+ | 3.76 | Mark Williamson | 76 | BAL |
| +026+ | 3.65 | Gregg Olson | 54 | BAL |
| +028+ | 3.57 | Doug Jones | 54.3 | CLE |
| +030+ | 3.5 | Dennis Eckersley | 48 | OAK |
| +040+ | 3.01 | Steve Farr | 76 | KCA |
| +044+ | 2.85 | Tom Candiotti | 139.3 | CLE |
| +046+ | 2.76 | Randy Myers | 58.3 | CIN |
| +049+ | 2.71 | Lee Smith | 66 | TOT |
| +051+ | 2.7 | Rob Dibble | 64.7 | CIN |
| +052+ | 2.69 | Bobby Thigpen | 57.7 | CHA |
| +053+ | 2.63 | Gene Nelson | 50 | OAK |
| +059+ | 2.49 | Greg Harris | 83.3 | SDN |
| +065+ | 2.38 | John Franco | 49 | NYN |
| +066+ | 2.38 | Brad Arnsberg | 37.7 | TEX |
| +071+ | 2.31 | Larry Andersen | 59.3 | HOU |
| +072+ | 2.3 | Jeff Montgomery | 66 | KCA |
| +073+ | 2.28 | Tom Henke | 53 | TOR |
| +075+ | 2.21 | Keith Comstock | 42.7 | SEA |
| +078+ | 2.15 | Barry Jones | 56.3 | CHA |
| +079+ | 2.14 | Bill Landrum | 53.3 | PIT |
| +080+ | 2.11 | Terry Leach | 64.3 | MIN |
| +082+ | 2.07 | Dennis Cook | 111.7 | PHI |
| +084+ | 2.04 | Mike Schooler | 50 | SEA |
| +089+ | 1.99 | Tim Crews | 69.7 | LAN |
_