The Rut Mountain Runs
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The Rut Mountain Runs

Big Sky, Montana, United States View on map
Sep 10, 2027 – Sep 12, 2027 (America/Denver local time)
Trail running

About this race

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

Pick your distance

Trail running

Trifecta (50K,28K,VK)

Sep 10, 2027 Ultra 9:00 AM
$405.00
Open

21k

Sep 10, 2027 Half-Marathon 10:00 AM
$140.00
Open

Lone Peak Vertical Kilometer

Sep 10, 2027 4K 9:00 AM
$80.00
Open

28k

Sep 10, 2027 28.6K 7:20 AM
$160.00
Open

50k

Sep 10, 2027 48.8K 6:00 AM
$175.00
Open

11k

Sep 10, 2027 10.3K 7:30 AM
$75.00
Open

Running

Kids 1K Runt Run

Sep 10, 2027 1K 4:50 PM
Free
Open

Typical race-day weather

Based on 14 years of Open-Meteo archive data for this event's race dates in Big Sky, plus the 3 days either side.

Temp (°C)
Minimum temperature (race-week average) 8.2° / Maximum temperature (race-week average) 20.9°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-week average) 6.5° / Maximum feels like — heat index / wind chill (race-week average) 20.8°
Peak wind (km/h)
Strongest wind of the day (race-week average)
13.5
Precip (mm)
Precipitation over the day (race-week average)
1.5mm
Humidity
Mean relative humidity (race-week average)
55.1%
Sunrise
Sunrise at the start line on September 10, 2027 (MDT)
Sunset
Sunset at the start line on September 10, 2027 (MDT)
Daylight
Hours between sunrise and sunset on race day
12h 48m

The sun rises at 6:57 AM and sets at 7:46 PM local time (MDT) in Big Sky on September 10, 2027 — 12h 48m of daylight.

Course

No course map published yet.

The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.

Reviews

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Results — The Rut Mountain Runs

2026 edition View Results
2025 edition View Results
2024 edition View Results
2023 edition View Results
2022 edition View Results
2021 edition View Results
2020 edition View Results
2019 edition View Results
2018 edition View Results
2017 edition View Results
2016 edition View Results
2015 edition View Results
2014 edition View Results
2013 edition View Results

Other races near Big Sky

Different organizers, within 40 miles, in the next three months

Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.

  • Entries, prices, waves and inclusions — the event's official registration page
  • Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
  • Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
  • Comparisons and counts — Race Discovery calendar, 7 Big Sky events

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