| Team | Tm | Tier | Game |
|---|---|---|---|
| Los Angeles Dodgers | LAN | 5.51 | 198909060_LAN_CIN |
| Oakland Athletics | OAK | 2.8 | 198909080_NYA_OAK |
| Toronto Blue Jays | TOR | 2.51 | 198909060_TOR_CHA |
| St. Louis Cardinals | SLN | 1.82 | 198909060_SLN_NYN |
| San Diego Padres | SDN | 1.68 | 198909080_LAN_SDN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Minnesota Twins | MIN | -4.72 | 198909060_MIN_TEX |
| Cleveland Indians | CLE | -2.27 | 198909070_TOR_CLE |
| Chicago White Sox | CHA | -2.02 | 198909060_TOR_CHA |
| Atlanta Braves | ATL | -1.69 | 198909080_ATL_CIN |
| Baltimore Orioles | BAL | -1.49 | 198909071_BAL_TEX |
Based on accumulated WAA for this season up to 1989-09-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +020+ | 4.96 | Jay Howell | 73 | LAN |
| +023+ | 4.58 | Jeff Montgomery | 84 | KCA |
| +025+ | 4.56 | Bill Landrum | 73.3 | PIT |
| +043+ | 3.69 | Mike Morgan | 149.3 | LAN |
| +047+ | 3.61 | Larry Andersen | 79.7 | HOU |
| +050+ | 3.5 | Danny Darwin | 113 | HOU |
| +052+ | 3.44 | Les Lancaster | 52 | CHN |
| +053+ | 3.43 | Jeff Parrett | 96 | PHI |
| +058+ | 3.29 | Roger McDowell | 78.3 | TOT |
| +064+ | 3.16 | Rob Dibble | 87.7 | CIN |
| +072+ | 2.94 | Gregg Olson | 74.3 | BAL |
| +074+ | 2.89 | Tom Henke | 74.3 | TOR |
| +075+ | 2.87 | Dennis Eckersley | 45 | OAK |
| +076+ | 2.86 | Mark Davis | 79 | SDN |
| +077+ | 2.85 | Todd Burns | 85.7 | OAK |
| +078+ | 2.8 | Randy Myers | 75.7 | NYN |
| +079+ | 2.77 | Lee Guetterman | 91.3 | NYA |
| +081+ | 2.7 | Jim Acker | 109 | TOT |
| +084+ | 2.66 | Jeff Russell | 66 | TEX |
| +093+ | 2.45 | Dan Quisenberry | 71.7 | SLN |
| +099+ | 2.37 | Jesse Orosco | 65 | CLE |
| +100+ | 2.31 | Craig Lefferts | 96.7 | SFN |
| +106+ | 2.25 | Tim Burke | 78 | WAS |
| +107+ | 2.22 | Dennis Lamp | 95.7 | BOS |
| +110+ | 2.2 | Dan Plesac | 58 | MIL |
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