| Team | Tm | Tier | Game |
|---|---|---|---|
| Los Angeles Dodgers | LAN | 5.15 | 198908150_LAN_PHI |
| Houston Astros | HOU | 2.79 | 198908130_CIN_HOU |
| St. Louis Cardinals | SLN | 2.62 | 198908141_ATL_SLN |
| Oakland Athletics | OAK | 2.36 | 198908130_OAK_ANA |
| San Diego Padres | SDN | 1.1 | 198908150_SDN_NYN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Detroit Tigers | DET | -4.87 | 198908150_BAL_DET |
| Chicago White Sox | CHA | -2.32 | 198908130_CHA_SEA |
| Minnesota Twins | MIN | -2.25 | 198908150_MIN_ANA |
| Milwaukee Brewers | MIL | -1.65 | 198908140_NYA_MIL |
| Baltimore Orioles | BAL | -0.65 | 198908140_BAL_DET |
Based on accumulated WAA for this season up to 1989-08-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +020+ | 4.48 | Jay Howell | 65 | LAN |
| +029+ | 3.82 | Bill Landrum | 60 | PIT |
| +032+ | 3.72 | Jeff Montgomery | 72 | KCA |
| +038+ | 3.51 | Mitch Williams | 67.7 | CHN |
| +040+ | 3.48 | Larry Andersen | 73.3 | HOU |
| +049+ | 3.32 | Jeff Parrett | 83.3 | PHI |
| +051+ | 3.15 | Mike Morgan | 135.7 | LAN |
| +052+ | 3.13 | Randy Myers | 65.3 | NYN |
| +057+ | 2.97 | Danny Darwin | 97 | HOU |
| +065+ | 2.73 | Todd Burns | 77.3 | OAK |
| +067+ | 2.69 | Rob Murphy | 77.3 | BOS |
| +068+ | 2.66 | Les Lancaster | 33.3 | CHN |
| +069+ | 2.6 | Craig Lefferts | 83.7 | SFN |
| +078+ | 2.41 | Mike Schooler | 61.3 | SEA |
| +077+ | 2.41 | Dennis Eckersley | 35 | OAK |
| +079+ | 2.4 | Rob Dibble | 71.7 | CIN |
| +086+ | 2.27 | Jim Acker | 94.7 | ATL |
| +090+ | 2.2 | Mark Davis | 62 | SDN |
| +092+ | 2.18 | Rick Honeycutt | 61.3 | OAK |
| +098+ | 2.09 | Don Robinson | 165.3 | SFN |
| +099+ | 2.09 | Roger McDowell | 65 | TOT |
| +100+ | 2.08 | Gregg Olson | 65 | BAL |
| +109+ | 1.96 | Greg Harris | 86 | SDN |
| +114+ | 1.87 | Ken Dayley | 58 | SLN |
| +115+ | 1.85 | Jeff Russell | 49.7 | TEX |
_