| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | 8.43 | 199005110_BAL_OAK |
| New York Mets | NYN | 3.11 | 199005110_LAN_NYN |
| Houston Astros | HOU | 2.2 | 199005120_HOU_PIT |
| Cincinnati Reds | CIN | 1.41 | 199005120_CHN_CIN |
| Toronto Blue Jays | TOR | 0.89 | 199005100_TOR_DET |
| Team | Tm | Tier | Game |
|---|---|---|---|
| San Francisco Giants | SFN | -4.34 | 199005110_SFN_PHI |
| California Angels | ANA | -3.24 | 199005100_ANA_SEA |
| Atlanta Braves | ATL | -1.67 | 199005110_ATL_SLN |
| Detroit Tigers | DET | -1.05 | 199005100_TOR_DET |
| Los Angeles Dodgers | LAN | -0.76 | 199005110_LAN_NYN |
Based on accumulated WAA for this season up to 1990-05-12.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 2.54 | Dave Stewart | 49.3 | OAK |
| +021+ | 1.6 | Juan Agosto | 20.7 | HOU |
| +022+ | 1.57 | Rob Dibble | 17.7 | CIN |
| +025+ | 1.56 | Doug Jones | 17 | CLE |
| +030+ | 1.46 | Duane Ward | 23 | TOR |
| +037+ | 1.31 | Gregg Olson | 17.3 | BAL |
| XXXXX | 1.24 | Jeff Montgomery | 25.7 | KCA |
| XXXXX | 1.22 | Bill Landrum | 16 | PIT |
| XXXXX | 1.18 | Greg Harris | 22.3 | SDN |
| XXXXX | 1.16 | Mark Eichhorn | 22.7 | ANA |
| XXXXX | 1.13 | Larry Andersen | 17.7 | HOU |
| XXXXX | 1.11 | Dennis Eckersley | 13 | OAK |
| XXXXX | 1.09 | Dan Schatzeder | 19.7 | HOU |
| XXXXX | 1.07 | Kevin Appier | 16.7 | KCA |
| XXXXX | 1.02 | Terry Leach | 18.3 | MIN |
| XXXXX | 1.02 | Jeff Reardon | 11.3 | BOS |
| XXXXX | 1 | Bill Sampen | 16 | WAS |
| XXXXX | 0.98 | Jeff Brantley | 22.7 | SFN |
| XXXXX | 0.97 | Paul Assenmacher | 24.7 | CHN |
| XXXXX | 0.96 | Mike Witt | 20.3 | ANA |
| XXXXX | 0.95 | Danny Darwin | 15.7 | HOU |
| XXXXX | 0.94 | Scott Radinsky | 10.7 | CHA |
| XXXXX | 0.92 | Bob Patterson | 15 | PIT |
| XXXXX | 0.85 | Mike Henneman | 18.7 | DET |
| XXXXX | 0.83 | Ken Dayley | 9.3 | SLN |
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