Lean Horse Ultra Marathon

Lean Horse Ultra – "Lean Horse Ultra Marathon"

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 ...

Lean Horse - Custer , SD 07/31/2026 - Ultra Running Magazine

Upcoming Races ; Aug 1 2026. 50 KM. 1,700 1,700 ft. ; Aug 1 2026. 50 Miles. 2,659 2,659 ft. ; Jul 31 2026. 100 Miles. 5,887 5,887 ft.

Lean Horse | Custer, United States | Jul 31-Aug 1, 2026 (Fri-Sat)

The Lean Horse 100 is celebrated as an ideal ultra-marathon for first-timers, thanks to its forgiving running surface and gentle elevation changes.