Black Hills 100 - Sturgis, SD
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Event overview
The Black Hills 100 is an ultramarathon weekend in Sturgis, South Dakota on June 26-27, 2026. It offers four distances:
- 100 Mile
- 50 Mile
- 50 Kilometer
- 30 Kilometer
Registration is open from September 1, 2025 through May 31, 2026. Entry fees are listed by distance: $350 for the 100M, $170 for the 50M, $150 for the 50K, and $130 for the 30K. The final cutoff for all events is 8:00 PM on Saturday.
Course and logistics
Races use the Centennial Trail (Trail #89) and parts of the Deerfield Trail (Trail #40). The 100M course is primarily single-track and dirt with some old logging roads and ATV trail; the organizers note the 100M route measures closer to 108 miles. Surface descriptions for the event include dirt, rocks, single-track and double-track ATV trail with minimal pavement.
Elevation figures provided by the organizer (from GPS-derived tracks) are: 100M gain/loss about 16,779 ft, 50M gain 6,700 ft loss 8,390 ft, 50K gain 3,891 ft loss 5,100 ft, and 30K gain 2,363 ft loss 4,641 ft. Aid station counts and drop bag options vary by distance; the 100M has eight aid stations and three designated drop bag locations. Buses transport point-to-point runners from Sturgis to the various start areas. Events operate under permit with the US Forest Service and Bureau of Land Management. Visit the organization's website for the most recent information.
