The 1998 season was the 86th year of competitive soccer in the United States.

The home team or the team that is designated as the home team is listed in the left column; the away team is in the right column.

Win Draw Loss Wins (W) are worth 3 points.Shootout Wins (SW) are worth 1 point, and is considered a Win in the standings.

Shootout Loss (SL) are worth 0 points, and is considered a Loss in the standings.Loss (L) are worth 0 points.

Home teams listed on top of bracket