2008–09 United States Open Cup for Arena Soccer

The 2008–09 United States Open Cup for Arena Soccer was the first open knockout style tournament for Arena/Indoor Soccer. In its inaugural season, the St. Louis Illusion were cup winners, due to their victory over the Detroit Waza and the Stockton Cougars inability to field a team for the final due to the late finish of the competition.

US Arena Open Cup bracket
† Due to the withdrawal of the Semifinal Winning Stockton Cougars before April 18, what was originally supposed to be a Semifinal Match between the St. Louis Illusion and Detroit Waza became the Championship Match.

Qualifying
San Diego Fusion qualify for US Arena Open Cup Round of 16

Final: November 22, 2008

OTW Santa Clara 7, Turlock Express 2

OTW Santa Clara qualify for US Arena Open Cup Round of 16


 * Final: November 30, 2008
 * Fort Collins Fury 4, Dynamite Reserves 0
 * Fort Collins Fury qualify for US Arena Open Cup Wild Card Round