| Team | Tm | Tier | Game |
|---|---|---|---|
| Los Angeles Dodgers | LAN | 5.21 | 198907280_LAN_SDN |
| St. Louis Cardinals | SLN | 4.83 | 198907280_SLN_WAS |
| Oakland Athletics | OAK | 1.85 | 198907280_SEA_OAK |
| New York Mets | NYN | 1.44 | 198907270_PIT_NYN |
| San Francisco Giants | SFN | 1.23 | 198907260_SFN_ATL |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Chicago White Sox | CHA | -3.45 | 198907270_CHA_ANA |
| Seattle Mariners | SEA | -2.95 | 198907260_SEA_CHA |
| Boston Red Sox | BOS | -2.51 | 198907270_KCA_BOS |
| Detroit Tigers | DET | -2.33 | 198907281_MIN_DET |
| Atlanta Braves | ATL | -1.37 | 198907280_CIN_ATL |
Based on accumulated WAA for this season up to 1989-07-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +023+ | 3.71 | Larry Andersen | 61.7 | HOU |
| +025+ | 3.66 | Bill Landrum | 50.3 | PIT |
| +028+ | 3.59 | Jay Howell | 54.7 | LAN |
| +029+ | 3.45 | Jeff Montgomery | 66.7 | KCA |
| +040+ | 3.12 | Mike Morgan | 128.3 | LAN |
| +047+ | 2.86 | Randy Myers | 57.3 | NYN |
| +048+ | 2.79 | Danny Darwin | 85.7 | HOU |
| +054+ | 2.58 | Mitch Williams | 56.3 | CHN |
| +058+ | 2.47 | Todd Burns | 72 | OAK |
| +063+ | 2.41 | Rick Aguilera | 66.7 | NYN |
| +064+ | 2.39 | Craig Lefferts | 71.7 | SFN |
| +070+ | 2.25 | Roger McDowell | 57.3 | TOT |
| +077+ | 2.12 | Mike Schooler | 50.7 | SEA |
| +082+ | 2.07 | Jeff Parrett | 64.3 | PHI |
| +086+ | 2.03 | Jim Acker | 77.7 | ATL |
| +088+ | 1.98 | Rob Murphy | 64.3 | BOS |
| +091+ | 1.94 | Gregg Olson | 56 | BAL |
| +092+ | 1.93 | Greg Minton | 56.3 | ANA |
| +095+ | 1.88 | Jeff Russell | 43 | TEX |
| +096+ | 1.87 | Todd Worrell | 36.3 | SLN |
| +099+ | 1.85 | Donn Pall | 64 | CHA |
| +100+ | 1.85 | Les Lancaster | 21.3 | CHN |
| +102+ | 1.83 | Rob Dibble | 62.7 | CIN |
| +105+ | 1.8 | Mark Grant | 62.3 | SDN |
| +107+ | 1.76 | Doug Jones | 51.3 | CLE |
_