| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | 4.36 | 199008150_BOS_OAK |
| Pittsburgh Pirates | PIT | 1.53 | 199008150_ATL_PIT |
| Baltimore Orioles | BAL | 0.92 | 199008170_OAK_BAL |
| Cincinnati Reds | CIN | 0.73 | 199008150_CIN_SLN |
| Kansas City Royals | KCA | 0.61 | 199008170_KCA_MIL |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Atlanta Braves | ATL | -7.41 | 199008170_ATL_CHN |
| Boston Red Sox | BOS | -2.96 | 199008150_BOS_OAK |
| Chicago Cubs | CHN | -1.83 | 199008170_ATL_CHN |
| Detroit Tigers | DET | -0.92 | 199008170_CLE_DET |
| San Diego Padres | SDN | -0.87 | 199008150_WAS_SDN |
Based on accumulated WAA for this season up to 1990-08-17.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +019+ | 4.23 | Jeff Brantley | 79 | SFN |
| +023+ | 3.93 | Doug Jones | 60.7 | CLE |
| +025+ | 3.87 | Mark Williamson | 84 | BAL |
| +028+ | 3.84 | Gregg Olson | 58.3 | BAL |
| +029+ | 3.79 | Dennis Eckersley | 51.3 | OAK |
| +034+ | 3.55 | Steve Farr | 86.7 | KCA |
| +042+ | 3.12 | Greg Harris | 91.3 | SDN |
| +043+ | 3.09 | Randy Myers | 64.7 | CIN |
| +044+ | 3.09 | Rob Dibble | 71.7 | CIN |
| +045+ | 3.04 | Edwin Nunez | 58.3 | DET |
| +050+ | 2.95 | Lee Smith | 71.7 | TOT |
| +053+ | 2.89 | Gene Nelson | 55.3 | OAK |
| +057+ | 2.74 | Brad Arnsberg | 44 | TEX |
| +060+ | 2.68 | Bobby Thigpen | 64.7 | CHA |
| +059+ | 2.68 | Jeff Montgomery | 70.3 | KCA |
| +062+ | 2.59 | John Franco | 53.7 | NYN |
| +064+ | 2.57 | Tom Henke | 56.3 | TOR |
| +069+ | 2.5 | Larry Andersen | 64 | HOU |
| +077+ | 2.32 | Barry Jones | 60.7 | CHA |
| +079+ | 2.27 | Tim Crews | 77.3 | LAN |
| +081+ | 2.22 | Bill Landrum | 59.3 | PIT |
| +099+ | 1.96 | Craig Lefferts | 66.7 | SDN |
| +100+ | 1.95 | Mike Schooler | 54 | SEA |
| +102+ | 1.91 | Terry Leach | 69 | MIN |
| +106+ | 1.89 | Dan Schatzeder | 55 | HOU |
_