| Team | Tm | Tier | Game |
|---|---|---|---|
| New York Mets | NYN | 4.46 | 199004150_NYN_WAS |
| Kansas City Royals | KCA | 3.24 | 199004150_TOR_KCA |
| Cincinnati Reds | CIN | 2.23 | 199004160_CIN_ATL |
| Oakland Athletics | OAK | 1.76 | 199004150_OAK_SEA |
| Boston Red Sox | BOS | 1.33 | 199004140_MIL_BOS |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Atlanta Braves | ATL | -3.55 | 199004160_CIN_ATL |
| California Angels | ANA | -3.28 | 199004150_MIN_ANA |
| Detroit Tigers | DET | -2.07 | 199004150_BAL_DET |
| San Francisco Giants | SFN | -1.9 | 199004140_SDN_SFN |
| Seattle Mariners | SEA | -1.66 | 199004140_OAK_SEA |
Based on accumulated WAA for this season up to 1990-04-16.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| XXXXX | 0.81 | Dennis Cook | 11.3 | PHI |
| XXXXX | 0.77 | Greg Harris | 9 | SDN |
| XXXXX | 0.67 | Dan Petry | 7.7 | DET |
| XXXXX | 0.59 | Terry Leach | 6.7 | MIN |
| XXXXX | 0.58 | Rob Dibble | 7 | CIN |
| XXXXX | 0.57 | Bob Tewksbury | 6.7 | SLN |
| XXXXX | 0.53 | Duane Ward | 6 | TOR |
| XXXXX | 0.49 | Larry Andersen | 6 | HOU |
| XXXXX | 0.48 | Paul Assenmacher | 5.7 | CHN |
| XXXXX | 0.46 | Mark Eichhorn | 5.7 | ANA |
| XXXXX | 0.43 | Lee Guetterman | 5 | NYA |
| XXXXX | 0.38 | Greg Minton | 4.7 | ANA |
| XXXXX | 0.38 | Ray Searage | 4.3 | LAN |
| XXXXX | 0.37 | Barry Jones | 4.3 | CHA |
| XXXXX | 0.37 | Randy O'Neal | 4.3 | SFN |
| XXXXX | 0.37 | Mitch Williams | 4.3 | CHN |
| XXXXX | 0.36 | Chuck Crim | 4 | MIL |
| XXXXX | 0.36 | Eric Gunderson | 6.7 | SFN |
| XXXXX | 0.35 | Tim Crews | 4 | LAN |
| XXXXX | 0.35 | Mike Schooler | 4 | SEA |
| XXXXX | 0.35 | Tom Henke | 4 | TOR |
| XXXXX | 0.34 | Bill Landrum | 4 | PIT |
| XXXXX | 0.34 | Luis Aquino | 6.7 | KCA |
| XXXXX | 0.34 | Dennis Eckersley | 4 | OAK |
| XXXXX | 0.34 | Ted Power | 4 | PIT |
_