| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | 5.08 | 199007160_CLE_OAK |
| Cincinnati Reds | CIN | 1.99 | 199007170_WAS_CIN |
| Pittsburgh Pirates | PIT | 1.48 | 199007160_SFN_PIT |
| Baltimore Orioles | BAL | 1.42 | 199007150_MIN_BAL |
| New York Mets | NYN | 1.4 | 199007150_NYN_CIN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Atlanta Braves | ATL | -5.13 | 199007170_PHI_ATL |
| Chicago Cubs | CHN | -4.86 | 199007170_SDN_CHN |
| St. Louis Cardinals | SLN | -1.68 | 199007160_LAN_SLN |
| California Angels | ANA | -1.38 | 199007170_MIL_ANA |
| San Diego Padres | SDN | -0.83 | 199007170_SDN_CHN |
Based on accumulated WAA for this season up to 1990-07-17.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +013+ | 3.95 | Jeff Brantley | 69.3 | SFN |
| +015+ | 3.85 | Mark Williamson | 61 | BAL |
| +030+ | 3.1 | Dennis Eckersley | 38.7 | OAK |
| +031+ | 3.06 | Gregg Olson | 47.7 | BAL |
| +032+ | 3.05 | Doug Jones | 49 | CLE |
| +043+ | 2.54 | Bill Landrum | 46.3 | PIT |
| +046+ | 2.41 | Gene Nelson | 40.3 | OAK |
| +047+ | 2.39 | Steve Farr | 62.3 | KCA |
| +050+ | 2.36 | Bobby Thigpen | 49.7 | CHA |
| +052+ | 2.35 | Tom Henke | 44.3 | TOR |
| +054+ | 2.27 | Lee Smith | 54.7 | TOT |
| +057+ | 2.2 | Mark Eichhorn | 59.3 | ANA |
| +058+ | 2.2 | Randy Myers | 50 | CIN |
| +061+ | 2.11 | Jeff Montgomery | 57 | KCA |
| +065+ | 2.05 | Rob Dibble | 53 | CIN |
| +072+ | 1.89 | Mike Henneman | 55 | DET |
| +076+ | 1.82 | Keith Comstock | 33.7 | SEA |
| +080+ | 1.75 | Terry Leach | 53.3 | MIN |
| +081+ | 1.73 | Greg Harris | 66 | SDN |
| +082+ | 1.73 | Bill Sampen | 53.3 | WAS |
| +085+ | 1.71 | Mike Schooler | 41.7 | SEA |
| +088+ | 1.66 | Paul Gibson | 59.3 | DET |
| +090+ | 1.61 | Barry Jones | 48.3 | CHA |
| +091+ | 1.6 | Juan Agosto | 58.7 | HOU |
| +094+ | 1.56 | Larry Andersen | 51.3 | HOU |
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