Wyoming · Half Marathon (13.1 mi) · 5K
Star Valley Half Marathon & 5K
Star Valley Half Marathon & 5K is a Half Marathon (13.1 mi) and 5K event held in Thayne, Wyoming. Its next confirmed date is Saturday, July 10, 2027. About 300 runners take part across all distances.
- Race day
- July 10, 2027
- Location
- Thayne, WY
- Field size
- ~300 runners
Race details
- Date
- Saturday, July 10, 2027
- Location
- Thayne, Wyoming
- Distances
- Half Marathon (13.1 mi), 5K
- Field size
- About 300 runners
- Course
- Scenic mountain valley course, ~6,100 ft
- Registration
- starvalleyhalfmarathon.com
- Official website
- starvalleyhalfmarathon.com
Registration, course & weather
- Registration status
- Registration status as last checked October 5, 2026: opens soon
- Start time
- 7:00 AM MDT
- Course profile
- Point-to-point course; Mostly road, some trail
About the Star Valley Half Marathon & 5K
A scenic point-to-point half marathon and 5K through the Star Valley near Afton, now in its 16th year.
Rankings and notes
- Rankings and awards
- 16th annual edition in 2026; popular destination half in western Wyoming
More half marathons in Wyoming
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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.
Star Valley Half Marathon & 5K: common questions
- When is the Star Valley Half Marathon & 5K?
- The next confirmed date is Saturday, July 10, 2027.
- Where is the Star Valley Half Marathon & 5K held?
- In Thayne, Wyoming.
- What distances does the Star Valley Half Marathon & 5K offer?
- Half Marathon (13.1 mi) and 5K.
- How many people run the Star Valley Half Marathon & 5K?
- About 300 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 Star Valley Half Marathon & 5K?
- Registration is handled by the organiser at starvalleyhalfmarathon.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Star Valley Half Marathon & 5K?
- Registration status as last checked October 5, 2026: opens soon.
- What time does the Star Valley Half Marathon & 5K start?
- 7:00 AM MDT.
- What is the course like at the Star Valley Half Marathon & 5K?
- Point-to-point course; Mostly road, some trail.
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.