Discover The Best Half Marathons in Colorado for 2025
Browse our listing of half marathons in Colorado to find one that suits your goals. Plus, get training tips.
For a full list of events, check out our calendar.
upcoming half marathons
April 12, 2026
in
Arvada
April 19, 2026
in
Fort Collins
May 3, 2026
in
Longmont
May 9, 2026
in
Colorado Springs
June 7, 2026
in
Boulder
August 1, 2026
in
Boulder
August 16, 2026
in
Boulder
August 23, 2026
in
Westminster
September 19, 2026
in
Colorado Springs
September 20, 2026
in
Fort Collins
October 3, 2026
in
Colorado Springs
October 11, 2026
in
Westminster