Colorado
Distance (km)
to
Colorado Half Marathon Calendar 2026-2027
Monthly updates for Colorado
Get new running races (and updates) in your inbox every month.
Explore the best half marathons in Colorado for 2026-2027! Our updated list features 108 exciting races across the region. Find your next race in Colorado below and join the running community at these great events!
November 2026
December 2026
January 2027