CO · January 2027
Half Marathons in Colorado in January
6 half marathons in Colorado are on the calendar for January 2027, in Arvada, Alma, Centennial, Crested Butte. Tap a race for the course, weather, past results and how to register.
All-Out Polar Prowl · Arvada, Colorado
ALMAGEDDON Winter Triathlon presented by the Alma Foundation · Alma, Colorado
MLK Jr. Freedom Run 5K/10K/13.1 DENVER/AURORA · Centennial, Colorado
Alley Loop · Crested Butte, Colorado
Coffee Lover Run DENVER/AURORA · Centennial, Colorado
Run for Donut DENVER/AURORA · Centennial, Colorado