Dusk to Dawn Relay + Ultra
About this race
The course is a beautiful, flat 2-mile loop on the Bonneville Salt Flats - the fastest speedway on earth - on which you (Ultra) or your relay team of 4, 6, or 8 will see how many miles you can run from dusk to dawn (~11 hours). You will run directly on the salt overnight under the stars, from sunset to sunrise. The team who runs the most miles in each team category wins a trophy!
For your non-runner family and friends who still want to come and enjoy the night and support you - get a Party Supporter wristband!
In order for your final lap to count, you must finish it by sunrise. Otherwise, you make your own strategy. Decide who will run when, how many laps, who will start, finish, etc. It's up to you! Get together and figure out how you can run the most miles from dusk to dawn.
Enjoy all-night activities such as an ultimate scavenger hunt or tours of the cosmos from a local astronomy club, win awesome giveaway prizes, and enjoy a pancake breakfast for charity at the end of the race.
Pick your distance
Trail running
Ultra
Typical race-day weather
Based on 7 years of Open-Meteo archive data for this event's race dates in Wendover, plus the 3 days either side.
The sun rises at 7:06 AM and sets at 8:03 PM local time (MDT) in Wendover on September 4, 2026 — 12h 57m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
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Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 1 Wendover event
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