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
March 23, 2025
in
Wellington
April 13, 2025
in
Fort Collins
April 13, 2025
in
Denver
May 4, 2025
in
Longmont
May 10, 2025
in
Colorado Springs
June 1, 2025
in
Boulder
July 19, 2025
in
Aspen
August 1, 2025
in
Boulder
August 17, 2025
in
Boulder
August 23, 2025
in
Pine
September 6, 2025
in
Fort Collins
September 20, 2025
in
Colorado Springs
September 21, 2025
in
Fort Collins
September 26, 2025
in
Red Feather Lakes
September 27, 2025
in
Westminster
October 4, 2025
in
Colorado Springs
October 11, 2025
in
Fort Collins
October 12, 2025
in
Westminster
October 18, 2025
in
Fort Collins
November 1, 2025
in
Fort Collins