Colorado Marathon
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Event details
The Colorado Marathon is scheduled for Sunday, May 3, 2026, in Fort Collins, Colorado. The event is held in the Poudre Canyon and in Fort Collins natural areas, with course routing along the Cache La Poudre River in the Rocky Mountains. The race has been designated the RRCA Colorado State Marathon Championship for 2023, 2024, and 2025. The event has produced roughly 16-18% of Boston Marathon qualifiers each year.
Courses and registration
The event offers multiple race distances:
- Full Marathon
- Half Marathon
- 10K
- 5K
Registration and event management are handled through RunSignUp. Prices listed include registration fees and are shown per distance; listed prices increase after December 31, 2025. A limited number of "Charity Fund" entries are reserved once a distance reaches capacity; these entries are higher-priced and donate proceeds to local charities. If a distance is sold out, no new registrations or distance changes are allowed for that distance. Distance changes and registration are also available at the weekend expo when capacity allows.
Sustainability and location
The organizers use digital registration and e-goody bags to reduce paper waste. The event location is listed as 301 Maple St., Fort Collins, CO 80521. Visit the organization's website for the most recent information.
