Butterfield Blitz Backyard
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About the race
Butterfield Blitz Backyard is a timed backyard ultra held at Butterfield Trailhead Regional Park in Herriman, UT. The race uses a 4.167 mile loop that is run once each hour; each loop has about +512 ft elevation gain and is marked with pink flags, cones, and signs. The surface is mostly trail (99%) with a small amount of fire road (1%). The first two miles climb slowly, then the route descends on clear, well maintained trails that pass through dense foliage.
The event offers three duration options with total distance and elevation as follows:
- 4 Hour : 16.7 miles, +2,048 ft
- 8 Hour : 33.3 miles, +4,096 ft
- 12 Hour : 50 miles, +6,144 ft
Placement is determined primarily by distance completed; when multiple runners reach the final loop, that last loop is timed as the "blitz" to determine finishing order. All runners who complete at least one loop receive a finisher medal. The finish area functions as a central aid station and gathering spot with snacks, Tailwind electrolyte drink, freshly baked pumpkin chocolate chip bread for the 4 hour finish, and pizza for the 8 hour and 12 hour finishes. Free parking is available near the trailhead and the venue provides ample space for spectators, crew, tents, and seating. Field sizes are capped at 60 runners per distance to limit trail congestion. Visit the organization's website for the most recent information.
