| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | 5.96 | 199007070_OAK_CLE |
| Cincinnati Reds | CIN | 2.87 | 199007080_CIN_PHI |
| Chicago White Sox | CHA | 1.43 | 199007080_BAL_CHA |
| Kansas City Royals | KCA | 1.14 | 199007070_KCA_DET |
| Cleveland Indians | CLE | 1.01 | 199007080_OAK_CLE |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Atlanta Braves | ATL | -4.34 | 199007070_NYN_ATL |
| Chicago Cubs | CHN | -2.95 | 199007081_CHN_SFN |
| St. Louis Cardinals | SLN | -1.46 | 199007080_SLN_SDN |
| California Angels | ANA | -1.06 | 199007110_ANA_SEA |
| Milwaukee Brewers | MIL | -1.01 | 199007080_ANA_MIL |
Based on accumulated WAA for this season up to 1990-07-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +015+ | 3.6 | Jeff Brantley | 65.3 | SFN |
| +017+ | 3.37 | Mark Williamson | 55.3 | BAL |
| +026+ | 2.93 | Dennis Eckersley | 36.7 | OAK |
| +028+ | 2.88 | Gregg Olson | 45.3 | BAL |
| +030+ | 2.85 | Edwin Nunez | 56 | DET |
| +036+ | 2.66 | Doug Jones | 44.7 | CLE |
| +038+ | 2.48 | Rob Dibble | 48.3 | CIN |
| +040+ | 2.43 | Bill Landrum | 42.3 | PIT |
| +046+ | 2.33 | Gene Nelson | 39.3 | OAK |
| +047+ | 2.32 | Bill Sampen | 48.3 | WAS |
| +048+ | 2.3 | Greg Harris | 62.7 | SDN |
| +050+ | 2.26 | Tom Henke | 41 | TOR |
| +054+ | 2.19 | Mark Eichhorn | 59 | ANA |
| +055+ | 2.11 | Bill Swift | 55 | SEA |
| +058+ | 2.09 | Bobby Thigpen | 46.7 | CHA |
| +061+ | 1.99 | Lee Smith | 51.3 | TOT |
| +063+ | 1.94 | Steve Farr | 57.3 | KCA |
| +067+ | 1.93 | Mike Schooler | 39.3 | SEA |
| +070+ | 1.83 | Dennis Lamp | 58.7 | BOS |
| +073+ | 1.76 | Paul Gibson | 51 | DET |
| +074+ | 1.75 | Jeff Montgomery | 53 | KCA |
| +076+ | 1.73 | Randy Myers | 44.7 | CIN |
| +080+ | 1.7 | John Franco | 37 | NYN |
| +082+ | 1.68 | Darrel Akerfelds | 48 | PHI |
| +085+ | 1.64 | Terry Leach | 49.7 | MIN |
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