Mt. Sneffels Half Marathon & 10K
Run in the "Switzerland of America" at the Mt. Sneffels Half Marathon.
Race Date
Aug 15, 2026
Location
Ouray, CO
Quick facts
- Date
- Saturday, August 15, 2026
- Location
- Ouray, Colorado
- Distance
- Half marathon (13.1 mi) + 10K run | kids run
- Course
- Point to Point
- Terrain
- Road
- USATF certified
- Not listed
- Finishers on record
- 5,379
Highlights
Good For
Atmosphere
Course
The Experience
Set against the stunning backdrop of the "Switzerland of America," the Mt. Sneffels Half Marathon offers a unique running experience in Ouray, Colorado. This race, first run in 2005 and now in its 17th edition, typically sees around 190-200 finishers, with a loyal 23% returning each year.
The course is a point-to-point journey, primarily on paved roads, that winds through the picturesque San Juan Mountains. While the elevation gain and loss are minimal, the surrounding mountain scenery is anything but. Runners can expect a fast, certified course that is a favorite for those seeking personal bests, all while soaking in the dramatic alpine views.
The atmosphere is one of community and natural beauty, with the crisp mountain air and the promise of a festive finish. It's a destination race that draws participants from across the country, eager to experience the charm of Ouray and the challenge of a mountain-adjacent half marathon.
Race-provided description
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Course Info
Course Type
Point to Point
Terrain
road
Scenery
Mountain
Surface
Paved
Difficulty
Ultra-Flat
Net Drop/km
0 m (Flat)
Separation
0.0%
Also Offers
Course Map
1 other map for this race
Quality Score
Standout6517 years running
~199 finishers a year
shrinking
23% returning runners
2 timing sources · 8 photos
runners from 1 state
winner 1:28:59
typical high 76°F
Race Day Weather
5-year historical avgStart (Low)
52°
Afternoon (High)
76°
Warm — hydration strategy is key, start conservatively
0.1"
Precipitation
8 mph
Wind
57%
Humidity
Historical Finish Times
How 5,379 finishers actually crossed the line across 17 years.
Most recent
2024
Total finishers
5,379
Median time
2:17:54
Latest turnout
193
States
46
Turnout by year
2016–2024
Hover the histogram to inspect specific finish times.
Race Photos
Frequently asked
When is the Mt. Sneffels Half Marathon & 10K?
The Mt. Sneffels Half Marathon & 10K is held on Saturday, August 15, 2026.
Where does the Mt. Sneffels Half Marathon & 10K take place?
It takes place in Ouray, Colorado.
What distances does the Mt. Sneffels Half Marathon & 10K offer?
The half marathon (13.1 miles), plus 10K run | kids run.
Is the Mt. Sneffels Half Marathon & 10K course flat and good for a PR?
The Mt. Sneffels Half Marathon & 10K is a ultra-flat, point to point course.
How many people run the Mt. Sneffels Half Marathon & 10K?
HalfRuns has finish records for 5,379 runners who have completed the Mt. Sneffels Half Marathon & 10K.
HalfRuns editorial — independent, no paid placement.
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