Quarter-finals | 29/09/1998 | D.C. United | - | Miami Fusion | 2:1 | ||||
Quarter-finals | 03/10/1998 | Miami Fusion | - | D.C. United | n.P. | ||||
Semi-finals | 10/10/1998 | D.C. United | - | Columbus Crew | 2:0 | ||||
Semi-finals | 17/10/1998 | Columbus Crew | - | D.C. United | 4:2 | ||||
Semi-finals | 20/10/1998 | D.C. United | - | Columbus Crew | 3:0 | ||||
Final | 24/10/1998 | Chicago Fire | - | D.C. United | 2:0 |