Backyard Ultra of Northern Utah
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Event
The Backyard Ultra of Northern Utah is scheduled for May 30, 2026, in Mantua, Utah, at Mantua Reservoir. The race uses the Backyard Ultra format in which runners repeat the same loop until only one runner remains. Organizers note the format allows participants to continue as long as they wish, without a required finishing distance, and can enable experienced runners to pursue distances beyond 100 miles or 200+ miles.
Course and conditions
The course is the Mantua Reservoir Trail, an exact loop of 4.1 miles with no out-and-back sections. The trail is described as flat, with about 20 ft of elevation change per loop, and a firm dirt surface with some gravel. Many participants are expected to use cushioned road shoes. The route circles Mantua Reservoir and includes springtime scenery such as the Mantua Poppy Fields, surrounding farmland, mountain hillsides, and local wildlife. Nighttime running will require headlamps as the loop is run through evening hours. Visit the organization's website for the most recent information.
