| Team | Tm | Tier | Game |
|---|---|---|---|
| Cincinnati Reds | CIN | 3.63 | 198808310_PIT_CIN |
| Los Angeles Dodgers | LAN | 3.27 | 198808310_LAN_WAS |
| San Diego Padres | SDN | 2.49 | 198808310_SDN_NYN |
| New York Mets | NYN | 1.74 | 198808300_SDN_NYN |
| Detroit Tigers | DET | 1.03 | 198808310_DET_CHA |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Baltimore Orioles | BAL | -3.17 | 198808310_BAL_ANA |
| Chicago Cubs | CHN | -2.54 | 198808310_CHN_HOU |
| Seattle Mariners | SEA | -1.46 | 198808310_NYA_SEA |
| Texas Rangers | TEX | -1.23 | 198808310_MIN_TEX |
| New York Yankees | NYA | -1.02 | 198808300_NYA_SEA |
Based on accumulated WAA for this season up to 1988-09-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +035+ | 4.11 | John Franco | 71.7 | CIN |
| +055+ | 3.12 | Greg Harris | 90.3 | PHI |
| +056+ | 3.04 | Brian Holton | 73.7 | LAN |
| +057+ | 3 | Mike Henneman | 68.3 | DET |
| +058+ | 2.98 | Mark Davis | 83.7 | SDN |
| +061+ | 2.93 | Lance McCullers | 78.3 | SDN |
| +067+ | 2.82 | Doug Jones | 69 | CLE |
| +069+ | 2.75 | Bryan Harvey | 69 | ANA |
| +071+ | 2.71 | Randy Myers | 55 | NYN |
| +074+ | 2.63 | Jeff Parrett | 75 | WAS |
| +076+ | 2.62 | Juan Agosto | 78.3 | HOU |
| +083+ | 2.58 | Alejandro Pena | 75.7 | LAN |
| +086+ | 2.53 | John Costello | 36.7 | SLN |
| +087+ | 2.52 | Steve Farr | 70.7 | KCA |
| +093+ | 2.44 | Roger McDowell | 78.3 | NYN |
| +098+ | 2.31 | Chuck Crim | 90 | MIL |
| +102+ | 2.22 | Michael Jackson | 90.7 | SEA |
| +111+ | 2.08 | Jeff Robinson | 105 | PIT |
| +114+ | 2.03 | Larry McWilliams | 109 | SLN |
| +116+ | 2 | Larry Andersen | 73.7 | HOU |
| +119+ | 1.89 | Greg Minton | 64 | ANA |
| +120+ | 1.89 | Jay Howell | 58 | LAN |
| +124+ | 1.74 | Terry Leach | 82.3 | NYN |
| +125+ | 1.73 | Frank Williams | 56.3 | CIN |
| +126+ | 1.7 | Greg Cadaret | 61 | OAK |
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