| Team | Tm | Tier | Game |
|---|---|---|---|
| Los Angeles Dodgers | LAN | 6.43 | 198909050_LAN_HOU |
| Toronto Blue Jays | TOR | 2.63 | 198909050_TOR_CHA |
| Oakland Athletics | OAK | 2.46 | 198909060_BOS_OAK |
| St. Louis Cardinals | SLN | 1.82 | 198909060_SLN_NYN |
| San Diego Padres | SDN | 1.46 | 198909070_SDN_HOU |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Minnesota Twins | MIN | -4.89 | 198909050_MIN_TEX |
| Cleveland Indians | CLE | -2.27 | 198909070_TOR_CLE |
| Chicago White Sox | CHA | -2.27 | 198909050_TOR_CHA |
| Baltimore Orioles | BAL | -1.63 | 198909050_CLE_BAL |
| Atlanta Braves | ATL | -1.57 | 198909050_SDN_ATL |
Based on accumulated WAA for this season up to 1989-09-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +020+ | 4.95 | Jay Howell | 73 | LAN |
| +025+ | 4.55 | Bill Landrum | 73.3 | PIT |
| +026+ | 4.5 | Jeff Montgomery | 83 | KCA |
| +041+ | 3.82 | Jeff Parrett | 95.7 | PHI |
| +048+ | 3.61 | Larry Andersen | 79.7 | HOU |
| +050+ | 3.59 | Mike Morgan | 148.3 | LAN |
| +053+ | 3.41 | Les Lancaster | 51.7 | CHN |
| +056+ | 3.31 | Danny Darwin | 110.7 | HOU |
| +062+ | 3.15 | Roger McDowell | 76.7 | TOT |
| +067+ | 3.05 | Rob Dibble | 86.3 | CIN |
| +070+ | 2.94 | Gregg Olson | 74.3 | BAL |
| +071+ | 2.89 | Tom Henke | 74.3 | TOR |
| +072+ | 2.87 | Dennis Eckersley | 45 | OAK |
| +074+ | 2.85 | Todd Burns | 85.7 | OAK |
| +076+ | 2.8 | Randy Myers | 75.7 | NYN |
| +077+ | 2.77 | Lee Guetterman | 91.3 | NYA |
| +078+ | 2.72 | Mark Davis | 77.3 | SDN |
| +080+ | 2.7 | Jim Acker | 106.7 | TOT |
| +088+ | 2.54 | Jeff Russell | 64.7 | TEX |
| +094+ | 2.43 | Craig Lefferts | 95.7 | SFN |
| +093+ | 2.43 | Jesse Orosco | 63.3 | CLE |
| +099+ | 2.36 | Mitch Williams | 76 | CHN |
| +103+ | 2.28 | Dan Quisenberry | 69.7 | SLN |
| +107+ | 2.25 | Tim Burke | 78 | WAS |
| +111+ | 2.21 | Dennis Lamp | 95.7 | BOS |
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