Black Hills 100 - Sturgis, SD

Event overview

The Black Hills 100 is an ultramarathon event held June 26-27, 2026, in Sturgis, South Dakota, on the Centennial Trail (Trail #89). The event includes multiple race distances and is organized under a special use permit with the U.S. Forest Service and Bureau of Land Management. Average late June weather for the area is reported as a high of 79°F and a low of 53°F, with a chance of afternoon thunderstorms.

Course and distances

The courses use the Centennial Trail and Deerfield Trail (Trail #40). Surfaces include single-track dirt, rocky trail, old logging roads, and a 13-mile ATV trail section, with minimal pavement. The 100-mile race is described as an out-and-back route between Sturgis and Silver City, with an actual measured course near 108 miles and total elevation gain of about 16,779 feet. Aid stations and drop bag options vary by distance; the 100-mile event has eight aid stations (seven visited twice) and three drop-bag locations at Elk Creek (miles 19/87), Dalton Lake (32/74) and Silver City (53).

• 100 Mile - out-and-back, ~108 miles, 16,779 ft gain
• 50 Mile - point-to-point from Silver City to Sturgis
• 50 Kilometer - point-to-point from Dalton Lake to Sturgis
• 30 Kilometer - point-to-point from Runkle Road to Sturgis

Registration period listed runs from September 1, 2025 through May 31, 2026. Visit the organization's website for the most recent information.