Matthew Sandlin Won Indianapolis Backyard Ultramarathon
Runners in this endurance challenge must complete a 4.167-mile loop every hour until only one remains.
Updated on Sept. 26, 2026 in Running
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Matthew Sandlin secured victory at the Prairie on Fire backyard ultramarathon held outside Indianapolis by covering 179.1 miles. The event saw hundreds of participants test their endurance in a unique format that has grown to include over 500 races globally in the last year.
Why it matters
The backyard ultra format represents an evolving trend in extreme endurance sports that tests physical limits and sleep management over consecutive days. Participation in these events has grown rapidly, with hundreds of competitions now scheduled annually.
Official race results confirm that 228 participants completed at least one lap, with 117 runners surpassing the 50-mile mark. This performance data reflects the growing scale of a format where participants are eliminated if they fail to finish the 4.167-mile loop within each hour.
The players
Matthew Sandlin
The endurance runner who achieved victory at the Prairie on Fire race by covering 179.1 miles.
Majel Wells
The competitor who finished the race after covering 129.1 miles.
Gary Cantrell
The event organizer who developed the backyard ultra format in 2011.
The details
The backyard ultra format requires athletes to start a 4.167-mile loop at the top of every hour. Runners who finish the loop within the hour gain the remaining time to rest in tents before the next start, with the race continuing until only one person successfully completes a loop. This format was originally designed to fit a race course onto a 140-acre farm.
Timeline
The first backyard ultramarathon was organized in 2011.
The Prairie on Fire race was held near Indianapolis in September 2026.
More than 700 backyard ultramarathons are scheduled for the coming year.
Health Landscape
The rise of the backyard ultramarathon global event series highlights a shift in how endurance athletes approach sleep deprivation and multi-day exertion. This event follows a rapid growth pattern established by the backyard ultra movement, which now spans 80 countries.
These extreme endurance challenges place significant stress on joints, feet, and systemic recovery, making it essential to consult a sports medicine physician before attempting multi-day, sleep-deprived racing. Recognizing signs of extreme fatigue and overtraining is critical for athletes interested in this race style.
The takeaway
The backyard ultra format shows that extreme endurance success depends as much on hourly pacing and rest management as it does on raw speed. Individuals interested in ultra-distance running should track their physical recovery metrics and prioritize professional guidance to avoid injury during long-term training.
Further reading
For more on local endurance training and events, visit the Running section.
Source note: This article includes information reported by The New York Times.
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