| Team | Tm | Tier | Game |
|---|---|---|---|
| New York Mets | NYN | 4.42 | 199005190_NYN_SDN |
| Oakland Athletics | OAK | 3.94 | 199005190_OAK_MIL |
| Kansas City Royals | KCA | 1.9 | 199005190_KCA_NYA |
| Cincinnati Reds | CIN | 1.74 | 199005190_SLN_CIN |
| Toronto Blue Jays | TOR | 1.03 | 199005190_ANA_TOR |
| Team | Tm | Tier | Game |
|---|---|---|---|
| California Angels | ANA | -3.03 | 199005180_ANA_TOR |
| Atlanta Braves | ATL | -2.49 | 199005190_PIT_ATL |
| Chicago Cubs | CHN | -2.09 | 199005170_CHN_HOU |
| Philadelphia Phillies | PHI | -1.17 | 199005190_PHI_LAN |
| Montreal Expos | WAS | -1.04 | 199005190_WAS_SFN |
Based on accumulated WAA for this season up to 1990-05-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +012+ | 2 | Juan Agosto | 25 | HOU |
| +019+ | 1.77 | Rob Dibble | 20 | CIN |
| +024+ | 1.69 | Doug Jones | 23 | CLE |
| +028+ | 1.61 | Gregg Olson | 20.3 | BAL |
| +030+ | 1.59 | Paul Assenmacher | 31.3 | CHN |
| +032+ | 1.54 | Greg Harris | 26.3 | SDN |
| +036+ | 1.48 | Mark Eichhorn | 28.3 | ANA |
| +043+ | 1.38 | Danny Darwin | 20.3 | HOU |
| +046+ | 1.31 | Dennis Eckersley | 15 | OAK |
| +050+ | 1.26 | Larry Andersen | 21.3 | HOU |
| XXXXX | 1.2 | Jeff Brantley | 25 | SFN |
| XXXXX | 1.15 | Jim Acker | 29 | TOR |
| XXXXX | 1.15 | Bill Landrum | 19.7 | PIT |
| XXXXX | 1.14 | Bill Sampen | 17.3 | WAS |
| XXXXX | 1.08 | Dan Schatzeder | 24 | HOU |
| XXXXX | 1.06 | Darrel Akerfelds | 14 | PHI |
| XXXXX | 1.05 | Jeff Montgomery | 28.3 | KCA |
| XXXXX | 1.03 | Barry Jones | 16.3 | CHA |
| XXXXX | 1.03 | Wayne Edwards | 18.7 | CHA |
| XXXXX | 1.03 | Duane Ward | 30 | TOR |
| XXXXX | 1 | Bill Swift | 22.7 | SEA |
| XXXXX | 0.97 | Gene Nelson | 20.7 | OAK |
| XXXXX | 0.96 | Atlee Hammaker | 38.7 | SFN |
| XXXXX | 0.94 | Mike Schooler | 17.3 | SEA |
| XXXXX | 0.94 | Mike Jeffcoat | 24.3 | TEX |
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