| Team | Tm | Tier | Game |
|---|---|---|---|
| New York Mets | NYN | 2.39 | 198809200_PHI_NYN |
| Minnesota Twins | MIN | 2.3 | 198809180_CHA_MIN |
| San Diego Padres | SDN | 2.28 | 198809200_SDN_CIN |
| Milwaukee Brewers | MIL | 1.2 | 198809180_MIL_SEA |
| Cincinnati Reds | CIN | 0.89 | 198809200_SDN_CIN |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Baltimore Orioles | BAL | -5.84 | 198809180_BAL_DET |
| New York Yankees | NYA | -2.45 | 198809180_NYA_BOS |
| Toronto Blue Jays | TOR | -1.21 | 198809200_BOS_TOR |
| Chicago Cubs | CHN | -1.07 | 198809180_SLN_CHN |
| Philadelphia Phillies | PHI | -0.72 | 198809180_PIT_PHI |
Based on accumulated WAA for this season up to 1988-09-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +010+ | 6.71 | Frank Viola | 236 | MIN |
| +043+ | 3.87 | John Franco | 79 | CIN |
| +047+ | 3.72 | Mike Henneman | 84.7 | DET |
| +051+ | 3.56 | Greg Harris | 103 | PHI |
| +055+ | 3.46 | Randy Myers | 64 | NYN |
| +056+ | 3.41 | Alejandro Pena | 85.7 | LAN |
| +060+ | 3.34 | Lance McCullers | 91 | SDN |
| +062+ | 3.31 | Mark Davis | 93 | SDN |
| +073+ | 2.93 | Bryan Harvey | 76.3 | ANA |
| +074+ | 2.86 | Doug Jones | 79.7 | CLE |
| +076+ | 2.81 | Steve Farr | 81.7 | KCA |
| +086+ | 2.6 | Juan Agosto | 86 | HOU |
| +097+ | 2.4 | Paul Mirabella | 53.7 | MIL |
| +099+ | 2.36 | Terry Leach | 90 | NYN |
| +100+ | 2.31 | Roger McDowell | 84.7 | NYN |
| +103+ | 2.25 | Rob Dibble | 55.3 | CIN |
| +102+ | 2.25 | Greg Cadaret | 68 | OAK |
| +107+ | 2.24 | Jay Howell | 62.3 | LAN |
| +112+ | 2.15 | Michael Jackson | 95.7 | SEA |
| +113+ | 2.12 | Chuck Crim | 96 | MIL |
| +115+ | 2.1 | D Eckersley | 68.7 | OAK |
| +124+ | 1.95 | Jeff Parrett | 82.3 | WAS |
| +127+ | 1.89 | Frank Williams | 63.3 | CIN |
| +130+ | 1.82 | John Costello | 45.7 | SLN |
| +131+ | 1.82 | Jeff Reardon | 67.7 | MIN |
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