What is the format of the race?

It is a Backyard Ultra where participants must complete a 4.167-mile loop every hour on the hour until only one runner remains.

What happens if I don't win?

Every runner who does not win receives a custom DNF award, and there are additional awards for reaching specific mileage benchmarks like 50 or 100 miles.

Can my crew help me while I am on the course?

No, crew members cannot provide any assistance to active runners while they are out on the loop, including cheering them on beyond the start/finish area.

All races

13 weeks out

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All races

13 weeks out

Dizzy Horse, A Winter Backyard Ultra

Friday, January 8, 2027Idaho Falls, IDDizzy Horse Backyard Ultra

Experience the ultimate test of endurance at this Winter Backyard Ultra, where runners tackle a 4.167-mile loop every hour on the hour. Set in the unique landscape of Sandy Downs Park, the course features a mix of grass, dirt, sand, and pavement, with the potential for snowy conditions in January. Participants can choose between a minimalist 'Bareback' entry or a 'Thoroughbred' experience that includes deluxe aid station access and reserved indoor space. The event begins with a social atmosphere that gradually transforms into an epic display of human willpower as the field dwindles. Whether you are aiming for a specific mileage benchmark or the title of 'Last Horse Standing,' this race offers a strategic and challenging environment. With indoor transition areas and a supportive community, it is a premier winter challenge in Idaho Falls.