Duff Dog Backyard Ultra

The Duff Dog Backyard Ultra is an endurance running event held at Blue Mounds State Park near Luverne, Minnesota. The race features a runner-friendly loop course primarily on grass trails, with some gravel and a short paved section, measuring approximately 4 miles 880 feet (6.7 km). The event follows the backyard ultra format, where runners complete one loop every hour until only one remains.

The course offers ample shade and a shelter building for comfort, with nearby camping available for participants' families and friends. Strict rules govern the race, including no personal aid during loops and mandatory start times, emphasizing endurance and strategy in a supportive outdoor setting. Visit the organization's website for the most recent information.