Colorado Marathon
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Overview
The Colorado Marathon is scheduled for May 3, 2026, in Fort Collins, Colorado. The event uses courses through the Poudre Canyon and natural areas along the Cache La Poudre River. The full marathon is described by the organizer as a predominantly downhill course. The event has been designated the RRCA Colorado State Marathon Championship for 2023, 2024, and 2025. The race weekend includes an expo where runners may register or change to a shorter distance, subject to capacity limits.
Event distances
- Full Marathon
- Half Marathon
- 10K
- 5K
Entry, capacity and sustainability
Standard and bundle registration options are offered, with fees and deadline-based price increases noted for 2025. Some distances may reach capacity; when standard entries fill, a limited number of higher-priced Charity Fund entries are available until sold out. The organizers use digital registration and plan to eliminate paper items at packet pickup by offering e-goody bags to reduce paper waste.
Location
The event is based in Fort Collins, CO, with course access through Poudre Canyon and river-side routes near the city. Visit the organization's website for the most recent information.
