Dizzy Horse Backyard Ultra
Idaho Falls, United States • 12 Dec 2025
The Dizzy Horse Backyard Ultra is a unique winter ultramarathon held in Idaho Falls, Idaho, featuring a 4.167-mile loop through a diverse course of desert, grass, horse-race tracks, gravel roads, and occasional snow. Participants run one loop every hour until only one runner remains, making it a test of endurance and mental strength. The event offers a social atmosphere with indoor and outdoor transition areas, basic and deluxe aid stations, and encourages community support. It is a Bronze Qualifying Backyard Ultra, with winners advancing to higher-level competitions. The race is known for its challenging winter conditions and camaraderie among runners. Visit the organization's website for the most recent information.