Grassroots Backyard Ultra
GrassRoots Backyard Ultra 2026
The GrassRoots Backyard Ultra returns for its fifth edition in Okotoks, Alberta. The event uses a 6.71 km loop along the Sheep River pathway that includes a section of single-track dirt and about 34 meters of elevation gain. The course runs on public pathways.
Event formats:
- Backyard Ultra Last Person Standing
- Backyard15 15 hours, 100.65 km
- Backyard24 24 hours, 100 miles
Key rules: runners must complete the 6.71 kilometre loop within one hour. A new lap begins at the top of each hour. Warning whistles sound 3, 2, and 1 minute before each lap. Competitors must start moving at the bell; late starts or failure to be in the starting corral result in disqualification or a DNF. No aid is allowed on course from the start signal. The final remaining runner must complete one additional lap to be declared the winner. Minimum age is 16 on race day.
Registration details and conditions: registration opened on September 15, 2025 and closed on May 31, 2026 or earlier if capacity was reached. Timed events have limited capacity. The winner receives 500 CAD with a 250 CAD bonus for a new course record. There are no refunds. Transfers are allowed until June 1, 2026 for a 20 CAD administrative fee. Visit the organization's website for the most recent information.