Last Herron Standing- Backyard Ultra
About this race
Solo: Last-person-standing endurance race
4.167-mile loop every hour until one runner remains$100 early / $125 late registration
Team Relay: 2–4 people per team or Teams may register as non-competitive and include any number of participants. These are considered “Fun Run” teams.
Same rules; 24-hour max; fastest team wins if multiple finish$50 per person / $70 late registration
Event info/loop details
Pick your distance
Trail running
Last Herron Standing- Backyard ultra- Team relay
Kids fun run
Typical race-day weather
Based on 1 year of Open-Meteo archive data for this event's race dates in Kalispell, plus the 3 days either side.
The sun rises at 6:13 AM and sets at 9:13 PM local time (MDT) in Kalispell on August 1, 2026 — 15h 00m 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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Other races near Kalispell
Different organizers, within 40 miles, in the next three months
Helena Flats Fun Run
October Cider Run
Glow Run: Superhero Edition
West Valley School Boo Dash Fun Run
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, 13 Kalispell events
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