Colorado High School Activities Association Lacrosse

The Colorado High School Activities Association (CHSAA) administers education-based athletics and activities for Colorado member schools. It governs boys’ and girls’ high-school lacrosse, providing sport information, postseason brackets, championship administration and resources for schools, coaches and officials. The 2026 boys’ lacrosse postseason included Class 4A and 5A state finals at the University of Denver’s Peter Barton Stadium.