1993 United States Interregional Soccer League

The 1993 United States Interregional Soccer League was an American outdoor soccer season run by the United States Interregional Soccer League.

In 1993, the league introduced the Southern Challenge Cup, a short season for teams which the league was considering for membership. The cup would allow these provisional teams to test their organization before beginning a season long competitive schedule. During the cup, the four provisional teams also played games against other teams in the league. These games counted both in the USISL and Southern Challenge Cup standings. The cup was capped by a final between the two top teams in which the Riverboat Gamblers defeated the Grasshoppers.

The standings published by the USISL list only the wins, losses, goals scored, goals allowed and total points. They do not provide the number of wins or losses that came through shootouts. They also do not provide the number of bonus points coming from goals or corner kicks.

It appears the USISL allowed each division to determine how its teams entered the playoffs. In the Atlantic Division, the Richmond Kickers and Charleston Battery played a one-time game to determine who went to the division semifinals, despite the Kickers having six more points in the standings than the Battery. In the Southeast Division, the Orlando Lions had a bye into the Sizzlin' Six Tournament as reigning champions. Therefore, the next four teams entered the divisional semifinals. In the Southwest Division, the top three teams qualified for the playoffs, but the next two teams did not enter. Instead, the Valley Golden Eagles with a 3-13 record entered the divisional playoffs. In the rest of the divisions, the top four teams made the divisional playoffs.

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