160.9K
Backyard24
Fri, Jun 27 · 8:00 PM
160.9K
- Past race
- Ultra
Grassroots Backyard Ultra 2025
- Okotoks, Alberta
About Grassroots Backyard Ultra 2025
The GrassRoots Backyard Ultra is set for its third edition on June 28, 2025, in Okotoks, Alberta. Participants run a 6.71 km loop primarily on flat, fast asphalt pathways along the Sheep River, with some single-track dirt trail and a modest 34 meters elevation gain. The course suits runners targeting personal distance records.
The event features a unique "Last Person Standing" race, where runners repeat loops until one remains, plus timed events for 15- and 24-hour durations aimed at milestone distances like 100 km and 100 miles.
Distances and events
100.65K
Backyard15
Fri, Jun 27 · 8:00 PM
Last Person Standing
Last Runner Standing
Time BasedFri, Jun 27 · 8:00 PM
Prices from the organizer. Please check the official website for up-to-date times and pricing.
Highlights
Flat, fast 6.71 km loop mostly on asphalt pathways along the Sheep River
Small section of single-track dirt trail
34 meters elevation gain
Open course on public pathways
Features timed distance events for 100 km and 100 miles
Last Person Standing course record: 35 laps by Preston Schaffer (August 2024)
Course
- Location
- Okotoks, Alberta
Course details
* 6.71 km loop per lap * Mostly asphalt pathways * Small single-track dirt trail section * 34 meters elevation gain per loop * Flat and fast course ideal for personal distance records
More races like this
Browse nearby and by distance
Listing freshness
The Running Directory combines organizer-provided details, official race links, and ongoing listing research. Always confirm final dates, prices, times, and course details with the race organizer before registering.
Last updated: October 2, 2026
Official registration(opens in a new tab)