| Team | Tm | Tier | Game |
|---|---|---|---|
| Los Angeles Dodgers | LAN | 6.02 | 198909020_WAS_LAN |
| Toronto Blue Jays | TOR | 2.98 | 198909030_MIN_TOR |
| San Diego Padres | SDN | 2.16 | 198909030_PHI_SDN |
| Oakland Athletics | OAK | 2.07 | 198909030_OAK_MIL |
| St. Louis Cardinals | SLN | 1.66 | 198909030_HOU_SLN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Baltimore Orioles | BAL | -2.74 | 198909020_BAL_CHA |
| Atlanta Braves | ATL | -1.88 | 198909030_CHN_ATL |
| Detroit Tigers | DET | -1.84 | 198909020_CLE_DET |
| Chicago White Sox | CHA | -1.56 | 198909010_BAL_CHA |
| Houston Astros | HOU | -1.4 | 198909030_HOU_SLN |
Based on accumulated WAA for this season up to 1989-09-03.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +021+ | 4.74 | Jay Howell | 71 | LAN |
| +028+ | 4.36 | Jeff Montgomery | 82 | KCA |
| +030+ | 4.26 | Bill Landrum | 70.3 | PIT |
| +039+ | 3.73 | Jeff Parrett | 92.7 | PHI |
| +048+ | 3.49 | Mike Morgan | 145.7 | LAN |
| +057+ | 3.3 | Danny Darwin | 108.7 | HOU |
| +065+ | 3.03 | Roger McDowell | 75.7 | TOT |
| +070+ | 2.96 | Randy Myers | 73 | NYN |
| +072+ | 2.9 | Rob Dibble | 85 | CIN |
| +073+ | 2.89 | Dennis Eckersley | 43 | OAK |
| +074+ | 2.87 | Les Lancaster | 45.7 | CHN |
| +075+ | 2.79 | Jim Acker | 105.7 | TOT |
| +081+ | 2.7 | Gregg Olson | 72 | BAL |
| +084+ | 2.65 | Lee Guetterman | 90.3 | NYA |
| +085+ | 2.63 | Tom Henke | 71.7 | TOR |
| +087+ | 2.55 | Todd Burns | 82.7 | OAK |
| +088+ | 2.54 | Mark Davis | 75.7 | SDN |
| +094+ | 2.43 | Mike Schooler | 66.3 | SEA |
| +096+ | 2.42 | Craig Lefferts | 93.7 | SFN |
| +097+ | 2.4 | Jesse Orosco | 63.3 | CLE |
| +098+ | 2.39 | Mitch Williams | 74.3 | CHN |
| +100+ | 2.36 | Mark Grant | 93 | SDN |
| +105+ | 2.31 | Jeff Russell | 62.3 | TEX |
| +113+ | 2.16 | Dan Quisenberry | 68.7 | SLN |
| +117+ | 2.12 | Tim Burke | 77 | WAS |
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