Salt Flats Endurance Runs
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About the race
Salt Flats Endurance Runs takes place April 30 to May 1, 2027, at the Bonneville Salt Flats Speedway in Wendover, Utah. The event offers multiple distances on courses that use the same salt section where land speed records are set.
Distances include:
- 100 Miler
- 100K (listed as 106.5K)
- 50 Miler
- 50K
- 10K
- 5K
All ultra distances start from the salt flats and follow sections of salt, mud flats, and routes that pass the “Islands,” mountain peaks that appear to float on the white surface. After about 13 miles of salt and three miles of mud flats runners reach the Islands. The 50K runs out to the No Post Aid Station at 15.5 miles and then reverses for an exact 50K. The 50 Miler, 100K, and 100 Miler extend onto rolling hills and include multiple significant climbs; the 100K and 100 Miler routes cross into Nevada along historic Donner Reid Party terrain. All courses finish back at the start area.
Organizers use preapproved alternate courses when salt is wet under BLM regulations; aid station distances remain unchanged. A 5K fun run was added in 2021 and a 10K in 2026, both on a simple out and back course; participants receive a tech shirt and bib. Awards are given to the top three men and top three women for each distance. Visit the organization's website for the most recent information.
