| Team | Tm | Tier | Game |
|---|---|---|---|
| Minnesota Twins | MIN | 2.56 | 198809170_CHA_MIN |
| Cincinnati Reds | CIN | 2.51 | 198809160_LAN_CIN |
| San Diego Padres | SDN | 2.48 | 198809171_SDN_ATL |
| New York Mets | NYN | 2.04 | 198809180_WAS_NYN |
| Milwaukee Brewers | MIL | 1.2 | 198809180_MIL_SEA |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Baltimore Orioles | BAL | -5.84 | 198809180_BAL_DET |
| Seattle Mariners | SEA | -3.17 | 198809160_MIL_SEA |
| New York Yankees | NYA | -2.6 | 198809170_NYA_BOS |
| Chicago Cubs | CHN | -1.37 | 198809160_SLN_CHN |
| Toronto Blue Jays | TOR | -1.12 | 198809180_CLE_TOR |
Based on accumulated WAA for this season up to 1988-09-18.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 7.62 | Frank Viola | 232.3 | MIN |
| +044+ | 3.87 | John Franco | 79 | CIN |
| +046+ | 3.79 | Mike Henneman | 83 | DET |
| +054+ | 3.46 | Randy Myers | 64 | NYN |
| +055+ | 3.41 | Alejandro Pena | 85.7 | LAN |
| +057+ | 3.38 | Greg Harris | 101 | PHI |
| +059+ | 3.3 | Mark Davis | 93 | SDN |
| +062+ | 3.24 | Lance McCullers | 90 | SDN |
| +070+ | 2.93 | Bryan Harvey | 76.3 | ANA |
| +077+ | 2.74 | Steve Farr | 81 | KCA |
| +079+ | 2.69 | Doug Jones | 77.7 | CLE |
| +088+ | 2.52 | Juan Agosto | 85 | HOU |
| +097+ | 2.36 | Terry Leach | 90 | NYN |
| +099+ | 2.34 | Paul Mirabella | 53 | MIL |
| +101+ | 2.31 | Roger McDowell | 84.7 | NYN |
| +104+ | 2.25 | Greg Cadaret | 68 | OAK |
| +106+ | 2.24 | Jay Howell | 62.3 | LAN |
| +107+ | 2.22 | Michael Jackson | 94 | SEA |
| +111+ | 2.1 | Rob Dibble | 53.7 | CIN |
| +115+ | 2.06 | Chuck Crim | 95.3 | MIL |
| +120+ | 1.95 | Jeff Parrett | 82.3 | WAS |
| +121+ | 1.93 | D Eckersley | 66.7 | OAK |
| +124+ | 1.89 | Frank Williams | 63.3 | CIN |
| +128+ | 1.81 | Jeff Reardon | 67.7 | MIN |
| +132+ | 1.74 | John Costello | 44.7 | SLN |
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