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.

Race information

4 mi
4.167 Miles
Visit the organization's website for the most recent information.
Trail runs nearby

Spitfire Ultra Trail Challenge, held near Menan, Idaho, at North Menan Butte, an extinct volcano, offers four distance options: 55K, 30K, 12K, and 5K. Runners traverse a dramatic mix of terrain on the volcano's west and east flanks, along the rim, and through its crater heart, with surfaces ranging..