Dizzy Horse, A Winter Backyard Ultra

A Winter Backyard Ultra

Starts on Friday December 12th at 10:00 am SHARP!

Run 4.167 miles every hour on the hour until only one participant remains

Hosted at the Bonneville County Exhibition Hall & Sandy Downs Park in Idaho Falls, ID

Race HQ Location

Location: Click Here

Live Tracking

Tracking: Click Here

2025 Participant Guide

Guide: Click Here

Race Format

• BAREBACK: This race can be run "bareback" style (general indoor transition area with no aid station access, just water and bathroom access). It’s cheap, but great for those who can and want to take care of themselves, but still race. $45 Registration fee during the early bird pricing. Then it's $50.
• THOROUGHBRED: Deluxe Aid Station with Catered Food, Reserved Indoor Transition Area, Custom Dizzy Horse Hoodie, or several options you can add on as you wish.
• Equal Start: Regardless of whether you go Bareback or full-on Thoroughbred, everyone runs the 4.167 miles through the course on equal footing.

Upgrades

Select the Upgrades tab in the top menu above or CLICK HERE to purchase any additional Upgrades you didn't select when signing up for the race. The Upgrades are limited in number and will likely be sold out before the race.

• Upgrade Costs:
  • $18 T-Shirt
  • $35 Hoodie
  • $40 Deluxe Aid Station Access During Entire Event (cost is per person)
  • $40 Reserved 10'x10' Interior Space (includes general indoor access for participant and up to 2 crew) (only 15 available)

Start Corral

The Start Corral will be just outside the Bonneville County Exhibition Hall. You’ll need to be in it before the top of each hour. At the top of each hour, you’ll start off on a wandering journey through Sandy Downs park. The course will be thoroughly marked so you won’t stand a chance of becoming lost. The course will be about 25% grass, 20% horse racetrack, 35% dirt, 8% sand and 12% pavement. A bell will ring at 3 minutes, 2 minutes, and 1 minute before the hour, notifying you to return to the starting corral.

The Race

At the start of each lap, everyone who remains is tied for first. The race continues until only one participant remains, known as the "Last Horse Standing." The Last Horse Standing must complete one more loop than 2nd place: otherwise, there is no winner. Awards are available for making certain benchmarks like 50 miles (12 hours), 100 miles (24 hours), etc.

Deluxe Aid Station

The Deluxe Aid Station will be in the Exhibition Hall, offering specialty items along with standard aid station fare. Please note that food is only accessible for non-runners who purchased tickets from the start of each hour until the middle of each hour.

Crew Information

Crew can refuel and relax while runners are on the course. They are welcome to set up chairs in the reserved booth area but cannot provide any assistance to active runners while they are out on the loop.

The Vibe

The race fosters a social atmosphere that requires strategy and determination. The first several hours are incredibly social, with the drama intensifying as the race progresses and more competitors drop out.

Sponsors

We are excited to have support from Grit League, Idaho Falls Trail Runners, Teton Auto Group, Idaho Falls Marathon, Spitfire Ultra Trail Challenge, and LiveTrackingCentral.com. This event promises to be one you won’t forget!

Volunteer Opportunities

If you don’t want to run but are willing to volunteer, we’d love to have your help! Depending on how long you commit to volunteer, perks may include access to the Deluxe Aid Station, a T-Shirt or Hoodie, and/or future entry into the event.

For more information and registration details, visit the race page: Dizzy Horse Race Page.