Idaho · Marathon · Half Marathon · 10K
Mesa Falls Marathon & Half Marathon
Mesa Falls Marathon & Half Marathon is a marathon, half marathon, 10K and 5K event held in Ashton, Idaho. Its next confirmed date is Saturday, July 17, 2027. About 800 runners take part across all distances.
- Race day
- July 17, 2027
- Location
- Ashton, ID
- Field size
- ~800 runners
Race details
- Date
- Saturday, July 17, 2027
- Location
- Ashton, Idaho
- Distances
- Marathon, Half Marathon, 10K, 5K
- Field size
- About 800 runners
- Course
- ~882 ft net loss (downhill, one climb miles 17-20)
- Registration
- runsignup.com
- Official website
- mesafallsmarathon.com
Registration, course & weather
- Registration status
- Registration status as last checked October 5, 2026: not announced
- Course profile
- Point-to-point course; Mostly road, some trail; Not a Boston qualifier
- Typical race-day weather
- about 60°F at the start, 84% humidity, 8 mph wind (based on the 2026 race day, measured near the city center rather than the exact start line; Open-Meteo historical archive (gridded reanalysis), checked October 8, 2026)
About the Mesa Falls Marathon & Half Marathon
A point-to-point downhill marathon from Targhee National Forest into Ashton along the Warm River, prized for its scenery near Mesa Falls.
Rankings and notes
- Rankings and awards
- USATF-certified; ranked among Idaho's most scenic marathons
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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.
Mesa Falls Marathon & Half Marathon: common questions
- When is the Mesa Falls Marathon & Half Marathon?
- The next confirmed date is Saturday, July 17, 2027.
- Where is the Mesa Falls Marathon & Half Marathon held?
- In Ashton, Idaho.
- What distances does the Mesa Falls Marathon & Half Marathon offer?
- Marathon, Half Marathon, 10K and 5K.
- How many people run the Mesa Falls Marathon & 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 Mesa Falls Marathon & Half Marathon?
- Registration is handled by the organiser at runsignup.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Mesa Falls Marathon & Half Marathon?
- Registration status as last checked October 5, 2026: not announced.
- What is the course like at the Mesa Falls Marathon & Half Marathon?
- Point-to-point course; Mostly road, some trail; Not a Boston qualifier.
- What is race-day weather usually like at the Mesa Falls Marathon & Half Marathon?
- about 60°F at the start, 84% humidity, 8 mph wind (based on the 2026 race day, measured near the city center rather than the exact start line; Open-Meteo historical archive (gridded reanalysis), checked October 8, 2026).
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.