| Team | Tm | Tier | Game |
|---|---|---|---|
| Cincinnati Reds | CIN | 4.29 | 198805210_CHN_CIN |
| Montreal Expos | WAS | 3.19 | 198805210_WAS_SFN |
| Philadelphia Phillies | PHI | 2.11 | 198805210_PHI_SDN |
| San Francisco Giants | SFN | 2.03 | 198805210_WAS_SFN |
| Kansas City Royals | KCA | 1.2 | 198805210_CLE_KCA |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Minnesota Twins | MIN | -4.24 | 198805210_MIN_TEX |
| Seattle Mariners | SEA | -1.92 | 198805230_BOS_SEA |
| Boston Red Sox | BOS | -1.39 | 198805210_ANA_BOS |
| Chicago Cubs | CHN | -1.35 | 198805210_CHN_CIN |
| Baltimore Orioles | BAL | -1.11 | 198805210_SEA_BAL |
Based on accumulated WAA for this season up to 1988-05-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +045+ | 1.76 | Bryan Harvey | 21.7 | ANA |
| +049+ | 1.57 | John Franco | 26 | CIN |
| +060+ | 1.4 | Rob Murphy | 24 | CIN |
| +066+ | 1.37 | Keith Atherton | 24.3 | MIN |
| +070+ | 1.35 | Dale Mohorcic | 17.3 | TEX |
| +071+ | 1.34 | Alejandro Pena | 22.3 | LAN |
| +074+ | 1.3 | Mark Davis | 30.7 | SDN |
| +075+ | 1.29 | Juan Agosto | 19.7 | HOU |
| +076+ | 1.27 | Barry Jones | 21.7 | PIT |
| XXXXX | 1.19 | Jeff Robinson | 44.7 | PIT |
| XXXXX | 1.15 | Mike Henneman | 21.7 | DET |
| XXXXX | 1.08 | Tom Henke | 21.3 | TOR |
| XXXXX | 1.07 | Dan Plesac | 21 | MIL |
| XXXXX | 1.04 | Craig Lefferts | 26.7 | SFN |
| XXXXX | 0.97 | Roger McDowell | 26.7 | NYN |
| XXXXX | 0.97 | Jim Gott | 23 | PIT |
| XXXXX | 0.93 | Brian Holton | 20 | LAN |
| XXXXX | 0.92 | Don Robinson | 27.7 | SFN |
| XXXXX | 0.89 | Randy Myers | 14.3 | NYN |
| XXXXX | 0.87 | Jose Rijo | 37.7 | CIN |
| XXXXX | 0.86 | Wally Ritchie | 12 | PHI |
| XXXXX | 0.84 | Bob Stanley | 11.7 | BOS |
| XXXXX | 0.84 | Duane Ward | 18.7 | TOR |
| XXXXX | 0.82 | Tim Crews | 9.3 | LAN |
| XXXXX | 0.79 | Paul Mirabella | 11 | MIL |
_