| Team | Tm | Tier | Game |
|---|---|---|---|
| Los Angeles Dodgers | LAN | 5.35 | 198909100_LAN_SDN |
| Oakland Athletics | OAK | 2.8 | 198909080_NYA_OAK |
| Toronto Blue Jays | TOR | 2.5 | 198909100_TOR_CLE |
| San Diego Padres | SDN | 1.75 | 198909090_LAN_SDN |
| California Angels | ANA | 1.32 | 198909100_BOS_ANA |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Minnesota Twins | MIN | -3.94 | 198909100_MIN_KCA |
| Cleveland Indians | CLE | -1.78 | 198909090_TOR_CLE |
| Atlanta Braves | ATL | -1.69 | 198909080_ATL_CIN |
| Baltimore Orioles | BAL | -1.44 | 198909080_BAL_TEX |
| Chicago White Sox | CHA | -1.37 | 198909090_CHA_DET |
Based on accumulated WAA for this season up to 1989-09-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +022+ | 4.96 | Jay Howell | 73 | LAN |
| +024+ | 4.71 | Bill Landrum | 75.3 | PIT |
| +025+ | 4.67 | Jeff Montgomery | 85 | KCA |
| +044+ | 3.7 | Mike Morgan | 149.3 | LAN |
| +046+ | 3.67 | Larry Andersen | 80.3 | HOU |
| +055+ | 3.51 | Danny Darwin | 113 | HOU |
| +056+ | 3.47 | Les Lancaster | 52.3 | CHN |
| +061+ | 3.31 | Rob Dibble | 89.3 | CIN |
| +062+ | 3.28 | Jeff Parrett | 96.7 | PHI |
| +064+ | 3.25 | Roger McDowell | 80.3 | TOT |
| +066+ | 3.17 | Tom Henke | 78 | TOR |
| +070+ | 3.06 | Gregg Olson | 75.7 | BAL |
| +072+ | 2.96 | Jim Acker | 112 | TOT |
| +071+ | 2.96 | Randy Myers | 77.7 | NYN |
| +073+ | 2.95 | Mark Davis | 80 | SDN |
| +074+ | 2.93 | Dennis Eckersley | 45.7 | OAK |
| +078+ | 2.85 | Todd Burns | 85.7 | OAK |
| +079+ | 2.84 | Lee Guetterman | 92 | NYA |
| +091+ | 2.48 | Dan Quisenberry | 72 | SLN |
| +092+ | 2.47 | Jeff Russell | 66.3 | TEX |
| +095+ | 2.45 | Jesse Orosco | 66.3 | CLE |
| +098+ | 2.43 | Bob McClure | 44.7 | ANA |
| +100+ | 2.37 | Craig Lefferts | 99.7 | SFN |
| +102+ | 2.31 | Dennis Lamp | 97 | BOS |
| +108+ | 2.23 | Chuck Crim | 98.7 | MIL |
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