| Team | Tm | Tier | Game |
|---|---|---|---|
| Los Angeles Dodgers | LAN | 4.15 | 198909210_LAN_SFN |
| Houston Astros | HOU | 3.42 | 198909190_HOU_ATL |
| Toronto Blue Jays | TOR | 3.06 | 198909200_BOS_TOR |
| Oakland Athletics | OAK | 2.99 | 198909210_OAK_MIN |
| California Angels | ANA | 2.22 | 198909210_ANA_CLE |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Minnesota Twins | MIN | -3.49 | 198909190_ANA_MIN |
| Chicago White Sox | CHA | -2.68 | 198909190_CHA_KCA |
| Atlanta Braves | ATL | -1.44 | 198909200_HOU_ATL |
| Cleveland Indians | CLE | -0.98 | 198909210_ANA_CLE |
| Kansas City Royals | KCA | -0.76 | 198909190_CHA_KCA |
Based on accumulated WAA for this season up to 1989-09-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +026+ | 4.71 | Jeff Montgomery | 88 | KCA |
| +037+ | 4.25 | Bill Landrum | 77.7 | PIT |
| +044+ | 3.99 | Larry Andersen | 84.3 | HOU |
| +047+ | 3.94 | Mike Morgan | 152.3 | LAN |
| +054+ | 3.7 | Jay Howell | 78 | LAN |
| +056+ | 3.6 | Les Lancaster | 63.7 | CHN |
| +057+ | 3.51 | Jim Acker | 119 | TOT |
| +058+ | 3.47 | Mark Davis | 86.3 | SDN |
| +059+ | 3.46 | Roger McDowell | 85.3 | TOT |
| +061+ | 3.46 | Danny Darwin | 117.7 | HOU |
| +063+ | 3.44 | Gregg Olson | 80.3 | BAL |
| +064+ | 3.38 | Todd Burns | 92 | OAK |
| +067+ | 3.2 | Rob Dibble | 93.3 | CIN |
| +068+ | 3.19 | Randy Myers | 80.3 | NYN |
| +071+ | 3.11 | Jesse Orosco | 74.7 | CLE |
| +075+ | 3.05 | Tom Henke | 82 | TOR |
| +080+ | 2.96 | Lee Guetterman | 96 | NYA |
| +083+ | 2.9 | Dennis Eckersley | 52.7 | OAK |
| +087+ | 2.81 | Greg Minton | 88.3 | ANA |
| +088+ | 2.79 | Bob McClure | 51.7 | ANA |
| +091+ | 2.65 | Dennis Lamp | 103.7 | BOS |
| +092+ | 2.64 | Jeff Russell | 68.3 | TEX |
| +093+ | 2.63 | Craig Lefferts | 106 | SFN |
| +098+ | 2.5 | Doug Jones | 77.3 | CLE |
| +100+ | 2.47 | Jeff Parrett | 102.3 | PHI |
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