Lean Horse Ultra Marathon
- Date:
- Sat, Aug 01, 2026 at 5:00 AM
- Location:
-
Homestead Drive
Custer, South Dakota
57730
United States
OpenStreetMap Google Maps - Links:
- leanhorseultra.com Register at raceroster.com
- Tags:
- Marathon Road Run Trail Ultra
RACE OVERVIEW
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, a 20-mile race, and a 30-mile Black Hills CrossFit Edition - Singles, 3, and 6 person relays. The course is held on the George S. Mickelson Trail.
Course Overview
Surface: Crushed Limestone
Course: Mickelson Trail
Elevation Profile: Extended gentle climbs. This is due to the fact the course is on an old railroad bed.
Hosting Town: Custer, South Dakota
Average August daytime temperature: High of 79 degrees. Low of 53 degrees.
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