The Rut Mountain Runs
The Rut Mountain Runs offer a challenging mountain running celebration in Big Sky, Montana.
Race Date
Sep 11, 2026
Location
Big Sky, MT
Quick facts
- Date
- Friday, September 11, 2026
- Location
- Big Sky, Montana
- Distance
- Half marathon (13.1 mi) + 50.6 Miles, 30.3 Miles, 17.8 Miles, 2.5 Miles, 6.41 Miles, 1K
- Course
- Loop Course
- Terrain
- Mixed
- USATF certified
- Not listed
Highlights
Good For
Atmosphere
The Experience
Set against the stunning backdrop of Big Sky, Montana, The Rut Mountain Runs transform the dramatic landscape into a series of demanding races. This multi-day event, typically held in September, draws runners from across the nation to test their mettle on rugged mountain terrain.
The series features a range of distances, from a 1K Runt Run for the youngest participants to grueling ultra-marathons. The 21.1 km half-marathon, specifically, navigates the challenging mountain environment, promising a true test of endurance and skill. With typical race-day temperatures in the 40s to 60s Fahrenheit, runners should be prepared for variable mountain weather.
While specific finisher numbers and repeat runner rates are not detailed, the event's sold-out status for 2025 and its dedicated registration platform suggest a popular and well-attended mountain running festival. Participants receive a T-shirt, and the event is presented by an unnamed partner, underscoring its established presence in the trail running community.
Race-provided description
The Rut Mountain Runs are a 3-day celebration of Mountain Running in Big Sky, Montana, on Sept 11-13, 2026. Registration opens on Jan 6th at 8 AM Mountain Time
Logistics
Race Day
Friday, September 11, 2026
Start Time
10:00 AM
Giveaway
T-shirt
Start Location
Big Sky Resort, Big Sky, MT, 59716
Course Info
Course Type
Loop Course
Terrain
mixed
Scenery
Mountain
Surface
Dirt Trail
Difficulty
Hilly
Net Drop/km
0 m (Flat)
Separation
0.0%
Also Offers
Quality Score
first year
no finisher counts yet
small race — neutral
needs a few years of results
3 timing sources
no finisher data yet
no winner time yet
typical high 65°F
Race Day Weather
5-year historical avgStart (Low)
44°
Afternoon (High)
65°
Pleasant conditions — light layers at start, comfortable by finish
0.1"
Precipitation
8 mph
Wind
58%
Humidity
Frequently asked
When is the The Rut Mountain Runs?
The The Rut Mountain Runs is held on Friday, September 11, 2026, starting at 10:00 AM.
Where does the The Rut Mountain Runs take place?
It takes place in Big Sky, Montana.
What distances does the The Rut Mountain Runs offer?
The half marathon (13.1 miles), plus 50.6 Miles, 30.3 Miles, 17.8 Miles, 2.5 Miles, 6.41 Miles, 1K.
Is the The Rut Mountain Runs course flat and good for a PR?
The The Rut Mountain Runs is a hilly, loop course course.
HalfRuns editorial — independent, no paid placement.
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