| Team | Tm | Tier | Game |
|---|---|---|---|
| San Francisco Giants | SFN | 3.38 | 198806010_SFN_WAS |
| Montreal Expos | WAS | 2.36 | 198805310_SFN_WAS |
| Philadelphia Phillies | PHI | 1.53 | 198805300_SDN_PHI |
| Kansas City Royals | KCA | 1.31 | 198806010_KCA_CLE |
| San Diego Padres | SDN | 0.84 | 198805300_SDN_PHI |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Seattle Mariners | SEA | -7.86 | 198806010_BAL_SEA |
| Boston Red Sox | BOS | -2.59 | 198805300_BOS_ANA |
| Atlanta Braves | ATL | -1.95 | 198805310_PIT_ATL |
| Baltimore Orioles | BAL | -1.71 | 198806010_BAL_SEA |
| Minnesota Twins | MIN | -1.68 | 198805300_TEX_MIN |
Based on accumulated WAA for this season up to 1988-06-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +039+ | 2.1 | Bryan Harvey | 25.7 | ANA |
| +050+ | 1.77 | Craig Lefferts | 35 | SFN |
| +056+ | 1.68 | John Franco | 29.7 | CIN |
| +058+ | 1.59 | Dale Mohorcic | 24.7 | TEX |
| +063+ | 1.54 | Barry Jones | 24.7 | PIT |
| +067+ | 1.5 | Juan Agosto | 24.7 | HOU |
| +076+ | 1.35 | Keith Atherton | 29 | MIN |
| +075+ | 1.35 | Jeff Parrett | 35 | WAS |
| +081+ | 1.3 | Alejandro Pena | 27 | LAN |
| +084+ | 1.25 | D Eckersley | 26.3 | OAK |
| XXXXX | 1.22 | Dan Plesac | 22.7 | MIL |
| XXXXX | 1.21 | Jose Rijo | 44 | CIN |
| XXXXX | 1.14 | Doug Sisk | 30.7 | BAL |
| XXXXX | 1.14 | Jim Gott | 27.3 | PIT |
| XXXXX | 1.14 | Roger McDowell | 29 | NYN |
| XXXXX | 1.13 | Richard Dotson | 66 | NYA |
| XXXXX | 1.12 | Duane Ward | 29 | TOR |
| XXXXX | 1.09 | Jeff Robinson | 50.7 | PIT |
| XXXXX | 1.07 | Brian Holton | 24.3 | LAN |
| XXXXX | 1.07 | Wes Gardner | 23.7 | BOS |
| XXXXX | 1.06 | G Hernandez | 27.7 | DET |
| XXXXX | 1.05 | Doug Jones | 26 | CLE |
| XXXXX | 1.05 | Randy Myers | 16.3 | NYN |
| XXXXX | 1.04 | Mark Davis | 35 | SDN |
| XXXXX | 1.03 | Cecilio Guante | 38.3 | NYA |
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