| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | 7.34 | 199005140_OAK_MIN |
| Houston Astros | HOU | 2.08 | 199005130_HOU_PIT |
| Cincinnati Reds | CIN | 1.47 | 199005150_PIT_CIN |
| New York Mets | NYN | 1.08 | 199005150_NYN_SFN |
| Toronto Blue Jays | TOR | 0.77 | 199005150_SEA_TOR |
| Team | Tm | Tier | Game |
|---|---|---|---|
| California Angels | ANA | -2.4 | 199005150_ANA_MIL |
| Chicago Cubs | CHN | -2.04 | 199005150_CHN_ATL |
| Atlanta Braves | ATL | -1.33 | 199005130_ATL_SLN |
| San Francisco Giants | SFN | -1 | 199005130_SFN_PHI |
| Detroit Tigers | DET | -0.7 | 199005150_DET_TEX |
Based on accumulated WAA for this season up to 1990-05-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +014+ | 1.83 | Doug Jones | 20 | CLE |
| +016+ | 1.76 | Rob Dibble | 20 | CIN |
| +022+ | 1.67 | Dave Stewart | 53.3 | OAK |
| +021+ | 1.67 | Juan Agosto | 21.3 | HOU |
| +030+ | 1.5 | Gregg Olson | 19.3 | BAL |
| +033+ | 1.41 | Duane Ward | 25 | TOR |
| +036+ | 1.35 | Greg Harris | 24.3 | SDN |
| +039+ | 1.34 | Mark Eichhorn | 24.7 | ANA |
| XXXXX | 1.25 | Bill Landrum | 18.7 | PIT |
| XXXXX | 1.19 | Dan Schatzeder | 20.7 | HOU |
| XXXXX | 1.17 | Danny Darwin | 18 | HOU |
| XXXXX | 1.16 | Paul Assenmacher | 26.7 | CHN |
| XXXXX | 1.14 | Larry Andersen | 17.7 | HOU |
| XXXXX | 1.12 | Dennis Eckersley | 13 | OAK |
| XXXXX | 1.11 | Jeff Brantley | 24 | SFN |
| XXXXX | 1.06 | Kevin Appier | 16.7 | KCA |
| XXXXX | 1.01 | Bill Sampen | 16 | WAS |
| XXXXX | 1 | Scott Radinsky | 11.3 | CHA |
| XXXXX | 0.96 | Jeff Montgomery | 27.3 | KCA |
| XXXXX | 0.96 | Mike Witt | 20.3 | ANA |
| XXXXX | 0.95 | Ken Dayley | 10.7 | SLN |
| XXXXX | 0.9 | Gene Nelson | 17.7 | OAK |
| XXXXX | 0.9 | Darrel Akerfelds | 10 | PHI |
| XXXXX | 0.9 | Gary Wayne | 10 | MIN |
| XXXXX | 0.88 | Rick Honeycutt | 15 | OAK |
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