Trail Running calendar near Spearfish 2025-2026

Old Baldy is a trail race held on the Old Baldy Trail just south of Spearfish, South Dakota. The main event covers 7.75 miles of scenic but rugged terrain through the Black Hills, featuring forested paths, rolling hills, and rewarding views near the summit—a classic South Dakota trail experience for..

XTERRA Deadwood Mickelson is a trail running event in Deadwood, South Dakota, and is part of the XTERRA Trail Run World Series. The course runs on the Mickelson Trail in the Black Hills and passes an abandoned mining town, railroad trestles, a mountain section, monolithic rock formations, and a cre..

Black Hills 100 in Sturgis, South Dakota, offers four race options: 100-mile, 50-mile, 50K, and 30K, held June 26–27, 2026. The course starts and finishes at Sturgis City Park, looping from Sturgis to Silver City and back. The 100-mile route is about 108 miles, mostly dirt trails with a paved initia..