| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | 5.96 | 199007070_OAK_CLE |
| Cincinnati Reds | CIN | 2.48 | 199007050_CIN_PHI |
| Detroit Tigers | DET | 1.96 | 199007050_KCA_DET |
| Chicago White Sox | CHA | 1.45 | 199007060_BAL_CHA |
| Kansas City Royals | KCA | 1.16 | 199007060_KCA_DET |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Atlanta Braves | ATL | -4.34 | 199007070_NYN_ATL |
| Milwaukee Brewers | MIL | -2.51 | 199007060_ANA_MIL |
| Chicago Cubs | CHN | -2.32 | 199007070_CHN_SFN |
| St. Louis Cardinals | SLN | -1.62 | 199007050_SLN_SDN |
| Philadelphia Phillies | PHI | -1.38 | 199007050_CIN_PHI |
Based on accumulated WAA for this season up to 1990-07-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +017+ | 3.4 | Jeff Brantley | 63.3 | SFN |
| +020+ | 3.11 | Mark Eichhorn | 58 | ANA |
| +024+ | 3 | Mark Williamson | 51.3 | BAL |
| +029+ | 2.83 | Edwin Nunez | 56 | DET |
| +030+ | 2.79 | Dennis Eckersley | 35.3 | OAK |
| +034+ | 2.69 | Gregg Olson | 43.3 | BAL |
| +037+ | 2.55 | Doug Jones | 43.7 | CLE |
| +038+ | 2.46 | Rob Dibble | 48.3 | CIN |
| +042+ | 2.42 | Bill Landrum | 42.3 | PIT |
| +047+ | 2.3 | Bill Sampen | 48.3 | WAS |
| +048+ | 2.28 | Greg Harris | 62.7 | SDN |
| +050+ | 2.26 | Steve Farr | 54.3 | KCA |
| +051+ | 2.25 | Bobby Thigpen | 43.7 | CHA |
| +052+ | 2.24 | Tom Henke | 41 | TOR |
| +058+ | 2.09 | Bill Swift | 55 | SEA |
| +059+ | 2.07 | Gene Nelson | 36.7 | OAK |
| +064+ | 1.91 | Lee Smith | 50.7 | TOT |
| +069+ | 1.83 | Mike Schooler | 38.3 | SEA |
| +068+ | 1.83 | Barry Jones | 41.3 | CHA |
| +070+ | 1.82 | Dennis Lamp | 58.7 | BOS |
| +073+ | 1.77 | Jeff Montgomery | 51.3 | KCA |
| +072+ | 1.77 | Scott Radinsky | 33.7 | CHA |
| +077+ | 1.74 | Paul Gibson | 51 | DET |
| +076+ | 1.74 | Rick Honeycutt | 35.3 | OAK |
| +078+ | 1.71 | Randy Myers | 44.7 | CIN |
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