1 mountain biking event in Butte, Montana

From big races to Saturday morning group runs—find mountain biking events and connect with the local endurance sports community.

• Butte 100 MTB Race [runsignup.com]
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  Sat, Jul 18, 2026 at 6:00 AM

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  Welcome to the most difficult mountain bike race in the country: The Butte 100. The Butte 100 race weekend consists of three individual races, a 100 mile, 50 mile and the Sorini 25, taking place atop...

  Welcome to the most difficult mountain bike race in the country: The Butte 100. The Butte 100 race weekend consists of three individual races, a 100 mile, 50 mile and the Sorini 25, taking place atop the Continental Divide just outside of Butte, Montana. The race has grown from a small group of dedicated locals on a gravel road, to world-class athletes competing on world-class trails. With outstanding partnerships with the USFS, BLM, community of Butte, our generous sponsors, and the “neon army” of volunteers, the Butte 100 races continue to provide the best mountain bike racing experience possible. Thanks for visiting.

  Please visit our Facebook page for updates and announcements.

  29.6 Miles 54.6 Miles 104.1 Miles Gravel Mountain Biking Trail

  Homestake Pass, Butte, Montana, 59701, United States
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