The final took place between D.C. United and Vasco da Gama and was staged over two legs on 14 November 1998 and 5 December 1998.

Both matches were played in the United States—the first in Washington, D.C., was won 1–0 by Vasco da Gama;[1] the second leg in Fort Lauderdale was won 2–0 by D.C.

[2] D.C. United won their first Copa Interamericana, winning the series 2–1 on aggregate.

They are the only team from the United States to win the competition.

[3] D.C. United head coach Bruce Arena left the team after the match to manage the United States men's national soccer team.