| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | 4.93 | 199007290_OAK_MIN |
| Cincinnati Reds | CIN | 2.08 | 199007280_CIN_SFN |
| Baltimore Orioles | BAL | 1.06 | 199007290_BAL_KCA |
| New York Mets | NYN | 0.97 | 199007280_SLN_NYN |
| Pittsburgh Pirates | PIT | 0.94 | 199007280_PHI_PIT |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Detroit Tigers | DET | -6.06 | 199007300_DET_NYA |
| Chicago Cubs | CHN | -5.75 | 199007290_CHN_WAS |
| Atlanta Braves | ATL | -4.8 | 199007290_ATL_LAN |
| Boston Red Sox | BOS | -2.4 | 199007290_BOS_DET |
| Milwaukee Brewers | MIL | -1.27 | 199007300_TEX_MIL |
Based on accumulated WAA for this season up to 1990-07-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +018+ | 3.9 | Mark Williamson | 71 | BAL |
| +021+ | 3.8 | Jeff Brantley | 72.3 | SFN |
| +027+ | 3.45 | Gregg Olson | 52 | BAL |
| +029+ | 3.33 | Doug Jones | 52 | CLE |
| +031+ | 3.17 | Dennis Eckersley | 44.3 | OAK |
| +039+ | 2.85 | Lee Smith | 61 | TOT |
| +046+ | 2.74 | Rob Dibble | 60.7 | CIN |
| +048+ | 2.68 | Steve Farr | 70.7 | KCA |
| +056+ | 2.39 | Gene Nelson | 47.3 | OAK |
| +060+ | 2.35 | Bobby Thigpen | 54.3 | CHA |
| +062+ | 2.35 | Bill Landrum | 51.3 | PIT |
| +061+ | 2.35 | Randy Myers | 54 | CIN |
| +074+ | 2.14 | Darrel Akerfelds | 62.3 | PHI |
| +073+ | 2.14 | Barry Jones | 54.3 | CHA |
| +076+ | 2.09 | Terry Leach | 59.7 | MIN |
| +078+ | 2.08 | John Franco | 46 | NYN |
| +079+ | 2.07 | Jeff Montgomery | 64 | KCA |
| +081+ | 2.06 | Keith Comstock | 36.3 | SEA |
| +080+ | 2.06 | Tom Candiotti | 131.7 | CLE |
| +082+ | 2.02 | Paul Gibson | 68 | DET |
| +083+ | 2.01 | Greg Harris | 78.3 | SDN |
| +085+ | 2 | Tom Henke | 50.3 | TOR |
| +084+ | 2 | Brad Arnsberg | 33.7 | TEX |
| +086+ | 2 | Larry Andersen | 56.3 | HOU |
| +088+ | 1.99 | Zane Smith | 126.3 | WAS |
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