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Trail Running calendar near Custer 2025-2026

We have found 3 Trailruns within 80 miles of Custer. See below where and when you can find the races.

Xterra Deadwood Mickelson

Deadwood - 43 mi from Custer

Discover XTERRA Deadwood Mickelson on June 7, 2026, a trail running celebration through the Black Hills with marathon, half, relay, 5K and kids races. Run past abandoned mining towns, over railroad trestles and beside creeks before finishin..

Black Hills 100 - Sturgis, SD

Sturgis - 45 mi from Custer

Tackle rugged trails at the Black Hills 100 in Sturgis with 100 mile, 50 mile, 50K and 30K options across single track, logging roads and rocky terrain. Scenic, technical courses finish at Sturgis City Park.

July 2026

Lean Horse Ultra

Custer

Run the scenic Lean Horse Ultra through the Black Hills from Custer on the gentle rails to trails George S. Mickelson Trail. Distances span 20 miles to a sanctioned 100 mile race with relay and team options on limestone.