| Team | Tm | Tier | Game |
|---|---|---|---|
| New York Mets | NYN | 4.18 | 198905120_SDN_NYN |
| Oakland Athletics | OAK | 3.07 | 198905120_MIL_OAK |
| Milwaukee Brewers | MIL | 1.59 | 198905100_CHA_MIL |
| Los Angeles Dodgers | LAN | 1.26 | 198905120_LAN_PHI |
| San Francisco Giants | SFN | 1.22 | 198905120_SFN_WAS |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Toronto Blue Jays | TOR | -2.92 | 198905100_SEA_TOR |
| Baltimore Orioles | BAL | -2.53 | 198905120_CHA_BAL |
| Cleveland Indians | CLE | -1.54 | 198905120_DET_CLE |
| Seattle Mariners | SEA | -1.51 | 198905120_BOS_SEA |
| Atlanta Braves | ATL | -0.99 | 198905120_ATL_PIT |
Based on accumulated WAA for this season up to 1989-05-12.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +012+ | 2.01 | Lee Guetterman | 23 | NYA |
| +020+ | 1.9 | Craig Lefferts | 25.3 | SFN |
| +044+ | 1.43 | Larry Andersen | 17.3 | HOU |
| XXXXX | 1.24 | Jay Howell | 20 | LAN |
| XXXXX | 1.17 | Mark Davis | 23.7 | SDN |
| XXXXX | 1.15 | Mark Knudson | 23.3 | MIL |
| XXXXX | 1.04 | Danny Darwin | 30.3 | HOU |
| XXXXX | 1.02 | Dennis Powell | 19 | SEA |
| XXXXX | 1.01 | Frank DiPino | 19.3 | SLN |
| XXXXX | 0.96 | Randy Myers | 16.3 | NYN |
| XXXXX | 0.96 | Greg Minton | 21.3 | ANA |
| XXXXX | 0.94 | Dennis Eckersley | 13.3 | OAK |
| XXXXX | 0.93 | Todd Burns | 23 | OAK |
| XXXXX | 0.91 | Terry Leach | 13.3 | NYN |
| XXXXX | 0.89 | Rick Aguilera | 18 | NYN |
| XXXXX | 0.88 | Jeff Russell | 15.3 | TEX |
| XXXXX | 0.87 | Norm Charlton | 15.3 | CIN |
| XXXXX | 0.86 | Gene Nelson | 10 | OAK |
| XXXXX | 0.85 | Pat Perry | 17.3 | CHN |
| XXXXX | 0.79 | Rick Honeycutt | 21.3 | OAK |
| XXXXX | 0.78 | Luis Aquino | 19.7 | KCA |
| XXXXX | 0.76 | Rich Gossage | 11.7 | SFN |
| XXXXX | 0.75 | Todd Worrell | 18.7 | SLN |
| XXXXX | 0.75 | Roger McDowell | 16.3 | NYN |
| XXXXX | 0.71 | Cris Carpenter | 20.7 | SLN |
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