Welcome to the Butte 100

Race Weekend is Saturday, July 25, 2015

Race Director Gina EvansWelcome to the most difficult mountain bike race in the country: The Butte 100. The Butte 100 race weekend consists of three individual races, a 25- (new in 2015) 50- and 100-mile version, 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.

Race Notes:

*Butte 25 registration is now open here. Updated course details and map can be found here.

*50 & 100 Waiting lists are now open here. Lottery waiting list racers have priority. Note: Athlete360′s lists begin at the bottom- racer #1 is located at the bottom and newest names are added to the top.

The Butte 100 is run in cooperation with:

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Thanks to our 2015 Premier Sponsors:

Peter M. Sorini M.D.

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