The Dips qualified for the 1980 NASL Playoffs, but lost in the first round to the Los Angeles Aztecs in extra time of the second leg.

During the 1979 season, the Dips finished second the Eastern Conference of the National Division.

They compiled a record of 19 wins and 11 defeats with 68 goals for and 50 scored against.

Their record earned the Dips a berth into the 1979 NASL Playoffs, where they lost 2–0 in games to the Los Angeles Aztecs.

The following players were contracted by the Washington Diplomats for part of the 1980 season.