| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | 5.2 | 199007120_MIL_OAK |
| Cincinnati Reds | CIN | 2.88 | 199007121_NYN_CIN |
| New York Mets | NYN | 1.34 | 199007140_NYN_CIN |
| Baltimore Orioles | BAL | 1 | 199007140_MIN_BAL |
| Chicago White Sox | CHA | 0.97 | 199007140_CHA_NYA |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Atlanta Braves | ATL | -4.43 | 199007120_WAS_ATL |
| Chicago Cubs | CHN | -4.2 | 199007120_LAN_CHN |
| St. Louis Cardinals | SLN | -1.49 | 199007140_SFN_SLN |
| New York Yankees | NYA | -0.75 | 199007120_CHA_NYA |
| Philadelphia Phillies | PHI | -0.61 | 199007140_PHI_HOU |
Based on accumulated WAA for this season up to 1990-07-14.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +014+ | 3.87 | Mark Williamson | 61 | BAL |
| +016+ | 3.81 | Jeff Brantley | 67.7 | SFN |
| +025+ | 3.1 | Dennis Eckersley | 38.7 | OAK |
| +026+ | 2.95 | Gregg Olson | 46.3 | BAL |
| +031+ | 2.87 | Doug Jones | 47 | CLE |
| +032+ | 2.84 | Edwin Nunez | 56 | DET |
| +037+ | 2.67 | Bill Landrum | 45.3 | PIT |
| +047+ | 2.35 | Tom Henke | 42 | TOR |
| +051+ | 2.32 | Bill Sampen | 48.3 | WAS |
| +050+ | 2.32 | Gene Nelson | 39.3 | OAK |
| +054+ | 2.21 | Bobby Thigpen | 48 | CHA |
| +055+ | 2.21 | Mark Eichhorn | 59.3 | ANA |
| +056+ | 2.16 | Lee Smith | 53.3 | TOT |
| +059+ | 2.12 | Steve Farr | 59.3 | KCA |
| +060+ | 2.1 | Bill Swift | 55 | SEA |
| +064+ | 2.02 | Jeff Montgomery | 56 | KCA |
| +066+ | 2 | Randy Myers | 47.7 | CIN |
| +067+ | 1.97 | Rob Dibble | 49.7 | CIN |
| +075+ | 1.82 | Dennis Lamp | 58.7 | BOS |
| +079+ | 1.76 | Terry Leach | 53.3 | MIN |
| +083+ | 1.73 | Greg Harris | 66 | SDN |
| +084+ | 1.72 | Mike Henneman | 53 | DET |
| +085+ | 1.71 | Darrel Akerfelds | 50.7 | PHI |
| +088+ | 1.63 | Mike Schooler | 40.7 | SEA |
| +090+ | 1.58 | Keith Comstock | 31 | SEA |
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