| Team | Tm | Tier | Game |
|---|---|---|---|
| Oakland Athletics | OAK | 7.08 | 199005150_OAK_CLE |
| New York Mets | NYN | 4.01 | 199005160_NYN_SFN |
| Cincinnati Reds | CIN | 1.56 | 199005170_SLN_CIN |
| Houston Astros | HOU | 1.44 | 199005150_HOU_SLN |
| Cleveland Indians | CLE | 0.8 | 199005160_OAK_CLE |
| Team | Tm | Tier | Game |
|---|---|---|---|
| California Angels | ANA | -2.5 | 199005170_ANA_MIL |
| Chicago Cubs | CHN | -2.35 | 199005160_CHN_ATL |
| Atlanta Braves | ATL | -1.57 | 199005170_PIT_ATL |
| San Francisco Giants | SFN | -0.92 | 199005150_NYN_SFN |
| Los Angeles Dodgers | LAN | -0.75 | 199005160_WAS_LAN |
Based on accumulated WAA for this season up to 1990-05-17.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +014+ | 1.77 | Rob Dibble | 20 | CIN |
| +020+ | 1.67 | Juan Agosto | 21.3 | HOU |
| +026+ | 1.59 | Paul Assenmacher | 31.3 | CHN |
| +030+ | 1.51 | Gregg Olson | 19.3 | BAL |
| +031+ | 1.5 | Doug Jones | 21 | CLE |
| +038+ | 1.39 | Mark Eichhorn | 25 | ANA |
| +039+ | 1.38 | Duane Ward | 27 | TOR |
| +042+ | 1.36 | Greg Harris | 24.3 | SDN |
| +046+ | 1.3 | Dennis Eckersley | 15 | OAK |
| +052+ | 1.26 | Bill Landrum | 18.7 | PIT |
| XXXXX | 1.2 | Dan Schatzeder | 20.7 | HOU |
| XXXXX | 1.2 | Jeff Brantley | 25 | SFN |
| XXXXX | 1.18 | Scott Radinsky | 13.3 | CHA |
| XXXXX | 1.17 | Danny Darwin | 18 | HOU |
| XXXXX | 1.17 | Larry Andersen | 20.3 | HOU |
| XXXXX | 1.07 | Kevin Appier | 16.7 | KCA |
| XXXXX | 1.06 | Jeff Montgomery | 28.3 | KCA |
| XXXXX | 1.02 | Ken Dayley | 11.3 | SLN |
| XXXXX | 1.02 | Barry Jones | 16.3 | CHA |
| XXXXX | 1.01 | Bill Sampen | 16 | WAS |
| XXXXX | 0.97 | Darrel Akerfelds | 10.7 | PHI |
| XXXXX | 0.93 | Mike Schooler | 17.3 | SEA |
| XXXXX | 0.93 | Mike Jeffcoat | 24.3 | TEX |
| XXXXX | 0.93 | Lee Smith | 22 | TOT |
| XXXXX | 0.9 | Gary Wayne | 10 | MIN |
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