Salt Flats Endurance Runs

MAY
1-2
2026
Run across the iconic Bonneville Salt Flats where land-speed records are set. Choose from ultra distances like the 100 miler or shorter family friendly 5K and 10K events. The courses feature salt flats, mud flats, and mountainous islands.
1-2 May 2026
100 miles 100 kilometers 50 miles 50 kilometers 10 kilometers 5 kilometers

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Event Overview

The Salt Flats Endurance Runs take place on May 1–2, 2026. The event is held in Wendover, Utah, at the Bonneville Salt Flats International Speedway.

Distances

The event features several race distances:

  • 100 Miler
  • 100K
  • 50 Miler
  • 50K
  • 10K
  • 5K

Course Description

All courses start at the Bonneville Salt Flats Speedway. The route covers the same section of salt flats used for land-speed records. The initial stretch includes 13 miles of salt and 3 miles of mud flats before connecting to the "Islands," which are mountain peaks rising from the salt.

The 50K course is an out-and-back route to the "No Post" Aid Station at the 15.5-mile mark. The 50 Mile, 100K, and 100 Mile courses continue along rolling hills and include two or four significant climbs, respectively. The 100-mile route crosses into Nevada. All courses finish back at the start line.

Additional Events

A 5K fun run was introduced in 2021, and a 10K event will be added in 2026. These are out-and-back courses. Bib pickup for these shorter events is from 10:30 to 11:30 AM on Saturday. All participants in the 5K and 10K receive a tech shirt and bib number. Finisher awards will be added for these distances in 2026.

Registration

Registration closes on Friday, April 24, at 11:59 PM MT. Visit the organization's website for the most recent information.

100 mi
100 Miler
100 km
100k
50 mi
50 Miler
50 km
50k
10 km
10k
5 km