| Team | Tm | Tier | Game |
|---|---|---|---|
| Los Angeles Dodgers | LAN | 5.35 | 198909100_LAN_SDN |
| Toronto Blue Jays | TOR | 2.93 | 198909120_TOR_MIN |
| Oakland Athletics | OAK | 2.76 | 198909100_NYA_OAK |
| California Angels | ANA | 1.78 | 198909120_NYA_ANA |
| San Diego Padres | SDN | 1.3 | 198909100_LAN_SDN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Minnesota Twins | MIN | -3.94 | 198909100_MIN_KCA |
| Baltimore Orioles | BAL | -3.63 | 198909120_CHA_BAL |
| Chicago White Sox | CHA | -2.78 | 198909120_CHA_BAL |
| Atlanta Braves | ATL | -1.76 | 198909120_ATL_SFN |
| Cleveland Indians | CLE | -1.49 | 198909100_TOR_CLE |
Based on accumulated WAA for this season up to 1989-09-12.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +024+ | 4.71 | Jay Howell | 75 | LAN |
| +025+ | 4.66 | Jeff Montgomery | 85 | KCA |
| +031+ | 4.53 | Bill Landrum | 75.7 | PIT |
| +042+ | 3.69 | Mike Morgan | 149.3 | LAN |
| +044+ | 3.68 | Larry Andersen | 80.3 | HOU |
| +049+ | 3.58 | Les Lancaster | 53.7 | CHN |
| +057+ | 3.42 | Roger McDowell | 82.3 | TOT |
| +060+ | 3.38 | Jeff Parrett | 98 | PHI |
| +064+ | 3.19 | Todd Burns | 89.7 | OAK |
| +065+ | 3.17 | Tom Henke | 78 | TOR |
| +066+ | 3.15 | Danny Darwin | 113.7 | HOU |
| +067+ | 3.14 | Gregg Olson | 76.7 | BAL |
| +069+ | 3.1 | Randy Myers | 79.3 | NYN |
| +071+ | 3.07 | Rob Dibble | 91.3 | CIN |
| +075+ | 2.95 | Jim Acker | 112 | TOT |
| +077+ | 2.94 | Mark Davis | 80 | SDN |
| +078+ | 2.93 | Dennis Eckersley | 45.7 | OAK |
| +080+ | 2.83 | Lee Guetterman | 92 | NYA |
| +088+ | 2.63 | Dennis Lamp | 100.7 | BOS |
| +089+ | 2.56 | Dan Quisenberry | 73 | SLN |
| +094+ | 2.48 | Bob McClure | 45.3 | ANA |
| +096+ | 2.47 | Jeff Russell | 66.3 | TEX |
| +099+ | 2.44 | Jesse Orosco | 66.3 | CLE |
| +103+ | 2.36 | Craig Lefferts | 99.7 | SFN |
| +106+ | 2.31 | Dan Plesac | 59.3 | MIL |
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