Endless Day Backyard Ultra
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Endless Day Backyard Ultra
The Endless Day Backyard Ultra is a timed backyard ultra held in Richfield, UT on October 17, 2026. The event uses a repeating 6.55 mile loop that participants must complete within 90 minutes. Runners may stop at any time and keep the distance they have earned; the format also produces a single overall winner who covers the furthest distance within the time limits. If multiple runners remain on the final lap, the runner who finishes that lap first is the winner.
Distance milestones are awarded by laps. Examples from the course:
- 1 lap = 10K (one 90 minute loop)
- 2 laps = Half Marathon
- 4 laps = Marathon
- 5 laps = 50K
- 8 laps = 50 miles
- 15 laps = ~100 miles
The course runs mostly on flat dirt farm roads and passes through farm fields with wide open views of the Pahvant Range and Red Hills. There are three blocks of pavement near the start/finish area. Aid is available at the start/finish park area and at a midway aid station, plus two self serve coolers when needed. The Nielson Family Park offers space for personal tents and base camps with designated areas near the northern pavilion.
The event was rescheduled from June 27 to October 17 due to unhealthy air quality from local forest fires. Registration fees are tiered by intended laps: regular rates and higher rates after October 4, with listed prices for 1 to 6 laps and 7 to 15 laps. Visit the organization's website for the most recent information.
