Black Hills 100 - Sturgis, SD

JUN
26-27
2026
Late June trail ultramarathon around Sturgis on the Centennial and Deerfield Trails, offering 30K, 50K, 50M and an out and back 100M with significant elevation gain.
26-27 Jun 2026
100 miles 50 miles 50 kilometers 30 kilometers

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Black Hills 100, Sturgis South Dakota

The Black Hills 100 is a trail ultramarathon held on the Centennial Trail (Trail #89) and Deerfield Trail (Trail #40) near Sturgis, South Dakota. The event takes place in late June and offers four distances: 100 mile, 50 mile, 50 kilometer and 30 kilometer.

The courses are mostly single-track dirt and rocky trail with short sections of old logging road and an extended ATV trail segment, with minimal pavement. The 100 mile event is run as an out-and-back that begins and ends in Sturgis and is noted by the organizer as being closer to 108 miles on course. Elevation gain is substantial and varies by distance; the 100 mile entry lists about 16,779 ft of gain and loss. Other listed elevation figures include roughly 8,656 ft gain for the 50 mile, 3,891 ft gain for the 50K and 2,363 ft gain for the 30K.

Aid station and logistics details are provided for each distance. The 100 mile course includes eight aid stations with three permitted drop bag locations. Point to point starts use bus transport from Sturgis to the respective start areas for the point to point distances. The event is conducted under special use permit with the US Forest Service and the Bureau of Land Management and asks participants to respect the trails. Visit the organization's website for the most recent information.

100 mi
100m
50 mi
50m
50 km
50k
30 km
30k