Butte 100 MTB Race
- Date
- July 18, 2026
- Location
- Homestake Pass, Butte, MT
- Distance
- Butte 100 · Butte 50 · Sorini 25 & more
From the Organizer
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.
Distances & Pricing
Race Location
About This Sport
From Endurance Grid's Founder
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
Mountain biking takes place on singletrack and natural terrain where reading the trail matters as much as fitness — cornering, braking, and instinct on dirt are skills that only come from time in the saddle.
Events range from beginner-friendly cross-country races to technical enduros, and the trail community is one of the most welcoming in endurance sport.
Mountain Bike
XC races, enduros, and fat bike events across Midwest trails. Technical, physical, and completely different from anything on pavement.
Coming Up
More mountain bike races
Rough Cut MTB
DINO MTB Series - Winona Lake
5 Mile · Youth
LaSport Mini Series MTB race 2
2026 Pierre's Hole 50/100 Mountain Bike Race
Frequently Asked Questions (FAQs)
- What is the Butte 100 MTB Race?
- Butte 100 MTB Race is a mountain bike event held in Butte, MT. Learn more about the different endurance sports here.
- When and where is the Butte 100 MTB Race?
- Saturday, July 18, 2026 in Butte, MT at Homestake Pass, Butte, MT. Check the official event page for exact start times and wave schedules.
- How do I register for the Butte 100 MTB Race?
- Registration is handled through their official registration page. Confirm pricing, distances available, and sign up there.
Butte 100 MTB Race
Jul 18, 2026