The 2012–13 US Open Arena Soccer Championship is the fifth edition of an open knockout style tournament for arena/indoor soccer.

In this edition, teams from the Professional Arena Soccer League, Premier Arena Soccer League, and other independent indoor soccer teams participate in the tournament.

[1] US Open Cup - Arena Soccer Qualifiers Saturday, November 3, 2012 Sunday, November 4, 2012 Group Matches: Sat.

Nov. 10, 2012 Rocky Mountain Qualifying - Sat.

Dec. 1, 2012 (@ Monument, CO) CSC Cavalry qualify for US Arena Open Cup Harrisburg Qualifying - Sat.