Grassroots Backyard Ultra
Always double-check with the organizer's website! This page may contain affiliate links.
About the race
Grassroots Backyard Ultra is a Backyard-style running event held in Okotoks, Alberta. Runners complete repeated laps of a measured loop until only one runner remains; the last runner must complete one additional lap to be declared the winner. The race uses a 6.71 kilometre loop that follows the Sheep River pathway, includes a short section of single-track, and has about 34 metres of elevation gain per lap. The format requires each loop to be completed within one hour; a new lap begins at the top of each hour and warning whistles sound three, two, and one minute before each lap start.
Runners must be moving forward at the bell and be inside the starting corral before the bell for the next lap. Receiving aid while on the course after the bell results in disqualification. Participants must be at least 16 years old on race day. Timed event options run on the same 6.71 km loop with a clock-defined finish; these timed events have capped entry numbers. Registration for the 2027 edition opens on August 4, 2026 and remains open until capacity is reached or registration closes.
There are no refunds; registrations may be transferred until June 1, 2027 for a $20 administration fee. Visit the organization's website for the most recent information.
