Butterfield Blitz Backyard
Herriman, United States • 16 May 2026
Event Format
The Butterfield Blitz Backyard is a loop-based running event. Participants run a loop of 4.167 miles once every hour for a chosen total duration. Runners must begin each new loop at the top of the hour and complete the loop within that hour to continue. The event format is a "Blitz Backyard," where each loop is individually timed, and final placement is determined first by the total number of loops completed and then by cumulative time for those who completed the same number of loops.
Distances and Start Times
The event offers three timed formats:
- 4-hour Blitz: 7:00 AM start. Total distance is 16.7 miles.
- 8-hour Blitz: 11:00 AM start. Total distance is 33.3 miles.
- 12-hour Blitz: 7:00 AM start. Total distance is 50 miles.
Location and Course
The event takes place at Butterfield Trailhead Regional Park in Herriman, Utah. The course is a single loop that is 99% trail and 1% fire road. It features a smooth trail that climbs gradually over the first two miles before a downhill return. The loop has an elevation gain of +512 feet per circuit. The course will be marked with pink flags, cones, and signs.
On-Site Details
The event area in the park's event parking lot provides space for runners to set up a personal base. Spectators and crew are welcome. The finish line area will have food and snacks, including an electrolyte drink. A breakfast and pizza will be provided at the conclusion of specific events. Live results showing individual lap times will be available during the race. Free professional photos will be taken on the course and at the finish line.
Registration and Logistics
Registration has early, normal, and late pricing tiers for each distance. Each distance is capped at 60 participants. Packet pickup is available the day before the race at a specified running store in Sandy, Utah, or on race day starting at 5:30 AM. Parking at the venue is free. The average historical temperatures for the date are a high of 71°F and a low of 51°F.
Awards
All runners who complete at least one loop receive a finisher's medal. Runners who complete 12 loops (50 miles) receive a custom leather patch beanie. The top three male and female finishers in each distance are determined by loops completed, with cumulative time used as a tiebreaker. Visit the organization's website for the most recent information.