Bitterroot Runoff Trail Runs
About this race
Kick off trail racing season in Montana with the Bitterroot Runoff Trail Runs!
Now with 5k, 5 Mile, & 10 Mile courses, there are options for beginners and seasoned veterans alike. All three courses follow private single & doubletrack trails on the Rossignol Ranch outside of Lolo, Montana.
After the race, you will be treated to a homemade brunch and Big Sky Brewery Beer.
Visit our website for more information.
Pick your distance
Running
Bitterroot Runoff 10 Mile
Bitterroot Runoff 5 Mile
Bitterroot Runoff 5k
Typical race-day weather
Based on 11 years of Open-Meteo archive data for this event's race dates in Lolo, plus the 3 days either side.
The sun rises at 6:44 AM and sets at 8:26 PM local time (MDT) in Lolo on April 17, 2027 — 13h 42m 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 — Bitterroot Runoff Trail Runs
Other races near Lolo
Different organizers, within 40 miles, in the next three months
Peak Hyrox: Doubles Simulation
Woods and Whites Retro Tennis Rally 2
Wood and Whites
Tundra Cross
🏃 Plan Your Next Race in Lolo
Find upcoming events by distance:
- Lolo Running Calendar 2026 2 races
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, 2 Lolo events
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