| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | 4.58 | 199006160_OAK_CHA |
| Houston Astros | HOU | 3.23 | 199006160_HOU_CIN |
| Chicago White Sox | CHA | 1.71 | 199006150_OAK_CHA |
| Cincinnati Reds | CIN | 1.52 | 199006150_HOU_CIN |
| Kansas City Royals | KCA | 1.06 | 199006160_MIN_KCA |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Atlanta Braves | ATL | -8.1 | 199006140_ATL_CIN |
| Chicago Cubs | CHN | -1.6 | 199006160_CHN_PHI |
| California Angels | ANA | -0.97 | 199006160_ANA_DET |
| New York Yankees | NYA | -0.97 | 199006140_BOS_NYA |
| Philadelphia Phillies | PHI | -0.72 | 199006151_CHN_PHI |
Based on accumulated WAA for this season up to 1990-06-16.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +017+ | 3.05 | Mark Eichhorn | 47.7 | ANA |
| +018+ | 2.89 | Gregg Olson | 36.3 | BAL |
| +021+ | 2.72 | Jeff Brantley | 46.3 | SFN |
| +035+ | 2.23 | Mark Williamson | 43 | BAL |
| +036+ | 2.2 | Dennis Eckersley | 29 | OAK |
| +038+ | 2.19 | Rob Dibble | 38.3 | CIN |
| +044+ | 2.06 | Bill Landrum | 31.3 | PIT |
| +045+ | 2.05 | Craig Lefferts | 34 | SDN |
| +047+ | 2.03 | Greg Harris | 47.7 | SDN |
| +048+ | 2.02 | Doug Jones | 33 | CLE |
| +050+ | 1.95 | Larry Andersen | 37.7 | HOU |
| +051+ | 1.94 | Bill Swift | 41.7 | SEA |
| +052+ | 1.93 | Bill Sampen | 37.3 | WAS |
| +060+ | 1.69 | Gene Nelson | 30.3 | OAK |
| +063+ | 1.64 | Edwin Nunez | 40.7 | DET |
| +064+ | 1.63 | Tom Henke | 34 | TOR |
| +066+ | 1.62 | Bobby Thigpen | 31.7 | CHA |
| +070+ | 1.6 | Rick Honeycutt | 27 | OAK |
| +073+ | 1.57 | Paul Gibson | 40 | DET |
| +074+ | 1.56 | Wayne Edwards | 31 | CHA |
| +075+ | 1.55 | Rick Aguilera | 28 | MIN |
| +078+ | 1.53 | Dennis Lamp | 46.3 | BOS |
| +080+ | 1.51 | Lee Guetterman | 36.7 | NYA |
| +082+ | 1.47 | Barry Jones | 30 | CHA |
| +083+ | 1.45 | Jeff Montgomery | 41 | KCA |
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