
Butte 100 MTB Race is a mountain bike race on July 17, 2027 in Butte, MT, with entry fees from $150 to $200.
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.
Events
Weather
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
82°
Typical Low
46°
Chance of Rain
29%
Based on US Climate Normals data from Butte Bert Mooney Ap, 5 mi from the venue.
Host City
Population
34,929
as of 2023
City Elevation
5,772 ft
Nearest Airport
BTM
Bert Mooney Airport · 6 mi
Time Zone
Mountain Time
From Endurance Grid
A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.
Race Location
Your Next Start Line
Every finish line starts with a single decision. Claim your spot at Butte 100 MTB Race, put it on the calendar, and turn “someday” into a start date.
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From Endurance Grid
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.
Mountain bike races take place on singletrack trails and natural terrain — dirt, roots, rocks, and forest roads. Mountain biking rewards skill as much as fitness.
Coming Up
The Hoot at Crosscut
83 miles away
2026 Pierre's Hole 50/100 Mountain Bike Race
173 miles away
Rough Cut MTB
168 miles away
BIG SKY BIGGIE
77 miles away
Plan your trip
Coming from out of town? There's more to Butte than race day. We'll help you line up nearby lodging, flights, a rental car, and things to do so you can make the most of your racecation.
Plan your trip to ButteFrequently Asked Questions (FAQs)
Butte 100 MTB Race
Jul 17, 2027