Colorado · Half
Georgetown to Idaho Springs Half Marathon
Georgetown to Idaho Springs Half Marathon is a half marathon event held in Idaho Springs, Colorado. Its next confirmed date is Saturday, August 14, 2027. About 800 runners take part across all distances.
- Race day
- August 14, 2027
- Location
- Idaho Springs, CO
- Field size
- ~800 runners
Race details
- Date
- Saturday, August 14, 2027
- Location
- Idaho Springs, Colorado
- Distances
- Half
- Field size
- About 800 runners
- Course
- Net downhill, 8,500 ft to 7,500 ft along Clear Creek Valley
- Registration
- raceroster.com
- Official website
- gtishalf.com
Registration, course & weather
- Registration status
- Registration status as last checked October 5, 2026: not announced
- Start time
- 7:00 AM MDT
- Course profile
- Point-to-point course; Mostly road, some trail; Not USATF certified
About the Georgetown to Idaho Springs Half Marathon
A scenic, gently downhill point-to-point half marathon that follows the Clear Creek Valley from Georgetown Lake to the historic mining town of Idaho Springs. Run by parent volunteers, proceeds support Clear Creek County schools.
Rankings and notes
- Rankings and awards
- Part of the Colorado Mountain Half Series; fast downhill mountain course; benefits Clear Creek County students
More half marathons in Colorado
Coming up next, by confirmed date.
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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.
Georgetown to Idaho Springs Half Marathon: common questions
- When is the Georgetown to Idaho Springs Half Marathon?
- The next confirmed date is Saturday, August 14, 2027.
- Where is the Georgetown to Idaho Springs Half Marathon held?
- In Idaho Springs, Colorado.
- What distances does the Georgetown to Idaho Springs Half Marathon offer?
- Half.
- How many people run the Georgetown to Idaho Springs Half Marathon?
- About 800 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 Georgetown to Idaho Springs Half Marathon?
- Registration is handled by the organiser at raceroster.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Georgetown to Idaho Springs Half Marathon?
- Registration status as last checked October 5, 2026: not announced.
- What time does the Georgetown to Idaho Springs Half Marathon start?
- 7:00 AM MDT.
- What is the course like at the Georgetown to Idaho Springs Half Marathon?
- Point-to-point course; Mostly road, some trail; Not USATF certified.
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.