Butterfield Blitz Backyard

Butterfield Blitz Backyard : May 16, 2026, Herriman, UT

The Butterfield Blitz Backyard takes place at Butterfield Trailhead Regional Park in Herriman, Utah. The event uses a 4.167 mile loop on the Butterfield trail system. The loop is 99% trail and 1% fire road with about +512 ft elevation gain per lap. The event offers three timed options: a 4-hour, 8-hour, and 12-hour Blitz Backyard.

Format, distances, and placement

Backyard races require runners to complete the loop once every hour. Runners who do not complete a loop within the hour or who do not start a scheduled loop are removed from the race. The Blitz variation records and times every loop; placement is determined first by distance completed and then by cumulative lap time for ties. Live results show individual lap times and cumulative totals during the race.

• 4 hours - 16.7 miles, +2,048 ft total gain
• 8 hours - 33.3 miles, +4,096 ft total gain
• 12 hours - 50 miles, +6,144 ft total gain

Logistics, services, and rules

Packet pickup is available the day before at Salt Lake Running Store and on race morning at the venue. The course is marked with pink flags, cones, and signs. Free parking is available near the park. Aid at the finish includes snacks, Tailwind electrolyte drink, Great Harvest Bread (4-hour finish), and pizza (8- and 12-hour finishes). Free, unwatermarked photos are provided by a race photographer. Each distance is capped at 60 runners. Rules include no pacers, no artificial aid including trekking poles, and requirement to be in the starting corral at each loop start; restrooms are the only allowed exception for leaving the course. Awards include finisher medals for anyone completing at least one loop and a leather patch beanie for those who complete 12 loops; top three male and female placements use distance then cumulative time. Visit the organization's website for the most recent information.