Colorado · Marathon · Half Marathon · 10K
Colorado Marathon
Colorado Marathon is a marathon, half marathon, 10K and 5K event held in Fort Collins, Colorado. Its next confirmed date is Sunday, May 2, 2027. About 3,500 runners take part across all distances.
- Race day
- May 2, 2027
- Location
- Fort Collins, CO
- Field size
- ~3,500 runners
Race details
- Date
- Sunday, May 2, 2027
- Location
- Fort Collins, Colorado
- Distances
- Marathon, Half Marathon, 10K, 5K
- Field size
- About 3,500 runners
- Course
- Moderate
- Registration
- comarathon.com
- Official website
- coloradomarathon.com
About the Colorado Marathon
A fast, scenic point-to-point race that descends the Cache la Poudre Canyon into Fort Collins, with marathon and half-marathon courses plus 10K and 5K options in town. It's one of Colorado's top Boston-qualifying races and regularly sells out.
Rankings and notes
- Rankings and awards
- Billed as Colorado's fastest downhill race; roughly 16-18% of runners qualify for Boston; USATF-certified
- Notes
- Smaller regional marathon
More marathons in Colorado
Coming up next, by confirmed date.
-
Colorado Springs Marathon, Half, 5K, and Kids KColorado Springs, COMarathonHalf Marathon10K5K +1 more
-
Windsor Marathon, Half Marathon, 10k, 5k & 1 Mile RunWindsor, COMarathonHalf Marathon10K5K +1 more ~660 runners
More races in Fort Collins
-
Colorado 24 Hour RunFort Collins, CO
More upcoming races in Colorado
Keep exploring
- All races in Colorado
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- 10Ks in Colorado63 upcoming races
- Half Marathons in Colorado38 upcoming races
- Marathons in Colorado10 upcoming races
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- 10Ks in the United States2,717 upcoming races
- Half Marathons in the United States1,289 upcoming races
- Marathons in the United States353 upcoming races
- Spring Marathons
- May Marathons
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- Marathons in Nebraska1 upcoming race
Guides from the RaceRove blog
- 7 min read How to Find a 5K, 10K, Half Marathon or Marathon Near You A practical way to find running races near you: pick a distance, decide how far you'll travel, read the listing properly and confirm the details before you register.
- 9 min read How to Run a Race in All 50 States How to plan a 50-state running challenge: set your own rules, group states into trips, build a calendar around the seasons, budget for it and keep track of every finish.
- 8 min read How to Choose the Best Half Marathon for a PR, Racecation or 50-State Challenge The best half marathon depends on what you want from it. How to choose a course for a personal record, a race worth travelling for, or an efficient stop on a 50-state challenge.
- Blog All guides Planning advice for finding, choosing and travelling to races.
Colorado Marathon: common questions
- When is the Colorado Marathon?
- The next confirmed date is Sunday, May 2, 2027.
- Where is the Colorado Marathon held?
- In Fort Collins, Colorado.
- What distances does the Colorado Marathon offer?
- Marathon, Half Marathon, 10K and 5K.
- How many people run the Colorado Marathon?
- About 3,500 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
- How do I register for the Colorado Marathon?
- Registration is handled by the organiser at comarathon.com. Entry fees, caps and deadlines are set there.
Plan this race in RaceRove
Save it to your plan, compare it with other races, check typical race-day weather and track your 50-state progress in the interactive app.