Colorado · 50 Kilometer · Marathon · Heavy Half Marathon
Aspen Backcountry
Aspen Backcountry is a 50 Kilometer, marathon and Heavy Half Marathon event held in Aspen, Colorado. It was last held on August 1, 2026 and is usually run in August; the next date hasn't been announced yet. About 123 runners take part across all distances.
- Usually held
- August
- Location
- Aspen, CO
- Field size
- ~123 runners
Race details
- Last held
- August 1, 2026
- Usually held in
- August
- Location
- Aspen, Colorado
- Distances
- 50 Kilometer, Marathon, Heavy Half Marathon
- Field size
- About 123 runners
- Course
- 5512 ft gain
- Registration
- ultrasignup.com
- Official website
- aravaiparunning.com
Registration, course & weather
- Registration status
- Registration status as last checked October 19, 2026: completed
- Start time
- 6:00 AM MDT
- Course profile — 50K
- Loop course; Road surface; 5512 ft gain (official course data)
- Course profile — Marathon
- Loop course; Road surface; 4764 ft gain (official course data)
- Course profile — Heavy Half Marathon
- Loop course; Road surface; 3169 ft gain (official course data)
About the Aspen Backcountry
Aspen Backcountry in Aspen, CO.
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Guides from the RaceRove blog
- 8 min read How to Choose Your First Marathon A practical checklist for choosing a first marathon based on course, weather, cutoff, travel, field size and support.
- 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.
- Blog All guides Planning advice for finding, choosing and travelling to races.
Aspen Backcountry: common questions
- When is the Aspen Backcountry?
- The next date hasn't been announced in the listing yet. The race is usually held in August. Check the organiser's website for the official date.
- Where is the Aspen Backcountry held?
- In Aspen, Colorado.
- What distances does the Aspen Backcountry offer?
- 50 Kilometer, Marathon and Heavy Half Marathon.
- How many people run the Aspen Backcountry?
- About 123 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 Aspen Backcountry?
- Registration is handled by the organiser at ultrasignup.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Aspen Backcountry?
- Registration status as last checked October 19, 2026: completed.
- What time does the Aspen Backcountry start?
- 6:00 AM MDT.
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.