| Team | Tm | Tier | Game |
|---|---|---|---|
| Los Angeles Dodgers | LAN | 4.25 | 198909240_SDN_LAN |
| Toronto Blue Jays | TOR | 3.05 | 198909240_TOR_MIL |
| Oakland Athletics | OAK | 2.87 | 198909250_TEX_OAK |
| California Angels | ANA | 1.92 | 198909231_ANA_CLE |
| San Diego Padres | SDN | 1.58 | 198909240_SDN_LAN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Baltimore Orioles | BAL | -3.65 | 198909230_NYA_BAL |
| Atlanta Braves | ATL | -3.05 | 198909240_CIN_ATL |
| Chicago White Sox | CHA | -2.84 | 198909250_MIN_CHA |
| Minnesota Twins | MIN | -2.66 | 198909230_OAK_MIN |
| Detroit Tigers | DET | -1.25 | 198909240_BOS_DET |
Based on accumulated WAA for this season up to 1989-09-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +027+ | 4.87 | Jeff Montgomery | 90 | KCA |
| +036+ | 4.34 | Bill Landrum | 78.7 | PIT |
| +040+ | 4.17 | Larry Andersen | 86.3 | HOU |
| +046+ | 3.95 | Les Lancaster | 70.3 | CHN |
| +047+ | 3.93 | Mike Morgan | 152.3 | LAN |
| +052+ | 3.78 | Jay Howell | 79 | LAN |
| +057+ | 3.69 | Roger McDowell | 90.3 | TOT |
| +059+ | 3.6 | Gregg Olson | 82.3 | BAL |
| +060+ | 3.59 | Mark Davis | 87.7 | SDN |
| +061+ | 3.58 | Danny Darwin | 119 | HOU |
| +062+ | 3.45 | Rob Dibble | 96.3 | CIN |
| +065+ | 3.31 | Tom Henke | 85 | TOR |
| +069+ | 3.19 | Jesse Orosco | 75.7 | CLE |
| +070+ | 3.13 | Todd Burns | 94 | OAK |
| +072+ | 3.1 | Lee Guetterman | 97.7 | NYA |
| +071+ | 3.1 | Jim Acker | 121.7 | TOT |
| +078+ | 2.99 | Dennis Eckersley | 53.7 | OAK |
| +086+ | 2.89 | Frank DiPino | 84.7 | SLN |
| +085+ | 2.89 | Dennis Lamp | 106.7 | BOS |
| +087+ | 2.87 | Greg Minton | 89 | ANA |
| +089+ | 2.79 | Bob McClure | 51.7 | ANA |
| +091+ | 2.76 | Greg Harris | 126.7 | SDN |
| +098+ | 2.62 | Craig Lefferts | 106 | SFN |
| +100+ | 2.57 | Randy Myers | 83 | NYN |
| +102+ | 2.55 | Doug Jones | 78 | CLE |
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