| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | 4.55 | 199007210_TOR_OAK |
| Baltimore Orioles | BAL | 2.71 | 199007210_CHA_BAL |
| Cincinnati Reds | CIN | 2.02 | 199007230_CIN_SDN |
| Pittsburgh Pirates | PIT | 1.35 | 199007210_LAN_PIT |
| New York Mets | NYN | 1.19 | 199007230_NYN_PHI |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Atlanta Braves | ATL | -5.4 | 199007210_ATL_NYN |
| Chicago Cubs | CHN | -3.46 | 199007220_SFN_CHN |
| San Diego Padres | SDN | -2.18 | 199007230_CIN_SDN |
| California Angels | ANA | -1.21 | 199007210_CLE_ANA |
| St. Louis Cardinals | SLN | -1.14 | 199007210_SDN_SLN |
Based on accumulated WAA for this season up to 1990-07-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +014+ | 4.07 | Mark Williamson | 66.3 | BAL |
| +019+ | 3.6 | Jeff Brantley | 70.3 | SFN |
| +028+ | 3.21 | Dennis Eckersley | 40.3 | OAK |
| +032+ | 3.13 | Doug Jones | 50 | CLE |
| +034+ | 3.05 | Gregg Olson | 48 | BAL |
| +045+ | 2.57 | Lee Smith | 58.3 | TOT |
| +046+ | 2.55 | Gene Nelson | 42.3 | OAK |
| +048+ | 2.46 | Steve Farr | 63.7 | KCA |
| +053+ | 2.36 | Bobby Thigpen | 52.3 | CHA |
| +054+ | 2.36 | Randy Myers | 52.3 | CIN |
| +055+ | 2.35 | Rob Dibble | 57 | CIN |
| +056+ | 2.29 | Tom Henke | 46.3 | TOR |
| +058+ | 2.27 | Bill Landrum | 48.3 | PIT |
| +059+ | 2.25 | Jeff Montgomery | 59 | KCA |
| +077+ | 1.9 | Darrel Akerfelds | 57.7 | PHI |
| +082+ | 1.89 | Keith Comstock | 34.7 | SEA |
| +079+ | 1.89 | Paul Gibson | 62.3 | DET |
| +078+ | 1.89 | Mike Schooler | 44 | SEA |
| +084+ | 1.85 | Barry Jones | 51.3 | CHA |
| +086+ | 1.84 | Larry Andersen | 55 | HOU |
| +088+ | 1.74 | Terry Leach | 53.7 | MIN |
| +090+ | 1.71 | John Franco | 42 | NYN |
| +092+ | 1.67 | Brad Arnsberg | 30 | TEX |
| +096+ | 1.65 | Bill Sampen | 55.3 | WAS |
| +097+ | 1.64 | Greg Harris | 72 | SDN |
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