Colorado · Half Marathon · 5-Event Series · Series 3 Pack
Colorado Mountain Half+ Series
Colorado Mountain Half+ Series is a half marathon, 5-Event Series, Series 3 Pack and Series 4 Pack event held in Littleton, Colorado. It was last held on September 13, 2026 and is usually run in September; the next date hasn't been announced yet.
- Usually held
- September
- Location
- Littleton, CO
Race details
- Last held
- September 13, 2026
- Usually held in
- September
- Location
- Littleton, Colorado
- Distances
- Half Marathon, 5-Event Series, Series 3 Pack, Series 4 Pack
- Registration
- raceroster.com
About the Colorado Mountain Half+ Series
Colorado Mountain Half+ Series 2026 in Littleton, CO.
More half marathons in Colorado
Coming up next, by confirmed date.
More races in Littleton
More upcoming races in Colorado
Keep exploring
- All races in Colorado
- 5Ks in Colorado 129 upcoming races
- 10Ks in Colorado 75 upcoming races
- Half Marathons in Colorado 55 upcoming races
- Marathons in Colorado 15 upcoming races
- Running in Littleton 7 upcoming races
- Half Marathons in the United States 1,828 upcoming races
- Fall Half Marathons
- September Half Marathons
- September races in Colorado
- Half Marathons in Utah 53 upcoming races
- Half Marathons in Kansas 22 upcoming races
- Half Marathons in Nebraska 21 upcoming races
- Half Marathons in New Mexico 22 upcoming races
Guides from the RaceRove blog
- 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.
- 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.
Colorado Mountain Half+ Series: common questions
- When is the Colorado Mountain Half+ Series?
- The next date hasn't been announced in the listing yet. The race is usually held in September. Check the organiser's website for the official date.
- Where is the Colorado Mountain Half+ Series held?
- In Littleton, Colorado.
- What distances does the Colorado Mountain Half+ Series offer?
- Half Marathon, 5-Event Series, Series 3 Pack and Series 4 Pack.
- How do I register for the Colorado Mountain Half+ Series?
- Registration is handled by the organiser at raceroster.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.