Dusk to Dawn Relay + Ultra 2026
Fri, Sep 4, 2026, 4:02 PM MDT
- Type
- Ultra
Finish signup on the organizer site (check fees and dates there).
Race feel
Run under the stars on the Bonneville Salt Flats from dusk to dawn in this unique ultra or relay. Challenge your limits and enjoy all-night activities.
- Fun
- Scenic
- Competitive
- Quirky
- For a Cause
Fun
Scenic
Competitive
Quirky
For a CauseExperience a truly unique overnight challenge at the Dusk to Dawn Relay + Ultra on the Bonneville Salt Flats. Run a beautiful, flat 2-mile loop directly on the salt from sunset to sunrise, covering as many miles as possible over approximately 11 hours. Whether you're tackling the ultra solo or strategizing with your relay team, you'll run under a canopy of stars. Enjoy all-night activities, including a scavenger hunt and cosmos tours, culminating in a charity pancake breakfast.
What to expect
- Run an ultra or relay on the famously flat Bonneville Salt Flats.
- Navigate a 2-mile loop overnight, from sunset to sunrise, under the stars.
- Enjoy all-night activities, including an ultimate scavenger hunt and astronomy tours, plus a charity pancake breakfast.
Standout details
- Overnight running on Bonneville Salt Flats
- Run under the stars from dusk to dawn
- Cosmos tours from an astronomy club
- Charity pancake breakfast
Perks & features
- Awards
AwardsFrom the public listing; confirm on the official site.
Distances & registration
4 optionsUse the official signup link above for all distances.
50 Mile
1 option · closes Aug 31, 2026, 7:59 PM MDT
4mo 1d 12h 45m leftUltra
Closes Aug 31, 2026, 7:59 PM MDT · From $112.30
Other options
3 options · closes Aug 31, 2026, 7:59 PM MDT
4mo 1d 12h 45m left4-Person Team Relay
Closes Aug 31, 2026, 7:59 PM MDT · From $96.40
6-Person Team Relay
Closes Aug 31, 2026, 7:59 PM MDT · From $85.80
8-Person Team Relay
Closes Aug 31, 2026, 7:59 PM MDT · From $80.50
Summaries use public event text. Confirm schedule, fees, and rules on the official page before you sign up.
From the organizer
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.