| Team | Tm | Tier | Game |
|---|---|---|---|
| Los Angeles Dodgers | LAN | 6.96 | 198908230_LAN_WAS |
| Oakland Athletics | OAK | 2.5 | 198908220_OAK_TEX |
| St. Louis Cardinals | SLN | 2.23 | 198908220_SLN_ATL |
| Montreal Expos | WAS | 2.03 | 198908230_LAN_WAS |
| California Angels | ANA | 1.24 | 198908220_ANA_KCA |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Minnesota Twins | MIN | -3.76 | 198908240_CHA_MIN |
| Chicago White Sox | CHA | -2.59 | 198908240_CHA_MIN |
| San Francisco Giants | SFN | -2.46 | 198908220_SFN_NYN |
| Detroit Tigers | DET | -2.19 | 198908220_DET_TOR |
| Chicago Cubs | CHN | -1.19 | 198908220_CIN_CHN |
Based on accumulated WAA for this season up to 1989-08-24.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +021+ | 4.56 | Jay Howell | 69 | LAN |
| +028+ | 4.3 | Bryn Smith | 173 | WAS |
| +029+ | 4.23 | Jeff Montgomery | 78 | KCA |
| +034+ | 3.76 | Bill Landrum | 64.7 | PIT |
| +045+ | 3.41 | Larry Andersen | 78 | HOU |
| +046+ | 3.37 | Jeff Parrett | 86.7 | PHI |
| +047+ | 3.37 | Danny Darwin | 105 | HOU |
| +051+ | 3.33 | Randy Myers | 70.3 | NYN |
| +056+ | 3.16 | Mike Morgan | 139.7 | LAN |
| +067+ | 2.95 | Rob Dibble | 78.3 | CIN |
| +070+ | 2.79 | Todd Burns | 78.3 | OAK |
| +071+ | 2.72 | Craig Lefferts | 90 | SFN |
| +074+ | 2.66 | Dennis Eckersley | 38 | OAK |
| +078+ | 2.6 | Dennis Martinez | 187.7 | WAS |
| +080+ | 2.57 | Les Lancaster | 39.7 | CHN |
| +086+ | 2.48 | Roger McDowell | 69.7 | TOT |
| +088+ | 2.46 | Mark Davis | 67.3 | SDN |
| +093+ | 2.3 | Mike Schooler | 62.7 | SEA |
| +096+ | 2.28 | Gregg Olson | 67.3 | BAL |
| +097+ | 2.26 | Mitch Williams | 70.3 | CHN |
| +099+ | 2.21 | Jim Acker | 99 | TOT |
| +102+ | 2.17 | Rob Murphy | 81.3 | BOS |
| +105+ | 2.13 | Jeff Russell | 53 | TEX |
| +106+ | 2.1 | Tom Henke | 65.7 | TOR |
| +108+ | 2.03 | Lee Guetterman | 81 | NYA |
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