2025 - The Colorado Marathon
2025 distances
Running
2026 Marathon
2026 Half Marathon
2026 10k
2026 5k
Marathon
The 2025 Marathon has officially sold out. There is no more opportunity to register for this year.
Half Marathon
10K
5K
Race date Weather
Conditions on May 3, 2025 — historical Open-Meteo data.
About Fort Collins
The Colorado Marathon takes place in Fort Collins, Colorado, United States. The local timezone is America/Denver.
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🏃 Plan Your Next Race in Fort Collins
Find upcoming events by distance:
- Fort Collins 5K Races Best Fort Collins routes for beginners and speed work.
- 10K Run Events in Fort Collins The most popular local distance in Colorado.
- Fort Collins Half Marathons Top-rated 21.1K courses in the Fort Collins area.
- Marathons in Fort Collins Scenic 42.2K routes and Fort Collins Boston qualifiers.
- Fort Collins Running Calendar 2026 See all upcoming race dates.
Race information has been sourced from the event's official website and other publicly available resources. For the most up-to-date details, please refer to the official website directly. If you notice any incorrect or missing information, don't hesitate to reach out to us by email.