Lean Horse 100 Ultra Marathon | Black Hills & Badlands Events

Lean Horse 100 Ultra Marathon

  • Lean Horse 100 Ultra Marathon
Event Date: 
Saturday, August 14, 2021 (All day) to Sunday, August 15, 2021 (All day)
Mickelson Trail
Custer, SD 57730

The Lean Horse Ultra Marathon is run in August every year in the Black Hills of South Dakota. It was first run in 2005. It features a 100-mile race, a 50-mile race, a 30-mile race, and a 20-mile race. The course is held on the George S. Mickelson Trail.

Fun Facts:

  • 33rd sanctioned 100-mile race in the United States
  • known as one of the best non technical courses in the United States.
  • One of the most scenic rails to trails courses in the country

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