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.
Events
Weather
Typical Conditions
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
83°
Typical Low
47°
Chance of Rain
29%
Based on US Climate Normals data from Butte Bert Mooney Ap, 6 mi from the venue.
Host City
About Butte, MT
Population
34,929
as of 2023
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
What Are You
Waiting For?
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.
Coming Up
More Mountain Bike races near Butte, MT
Wednesday Night Mountain Bike Race Series #6
267 miles away
Wednesday Night Mountain Bike Race Series #7
267 miles away
Wednesday Night Mountain Bike Race Series #8
267 miles away
Audi Snowmass 50 Mountain Bike Race
548 miles away
From Endurance Grid
About This Sport
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 U.S. trails. Technical, physical, and completely different from anything on pavement.
Frequently Asked Questions (FAQs)
- What is the Butte 100 MTB Race?
- Butte 100 MTB Race is a mountain bike race held in Butte, Montana on July 18, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more mountain bike races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the Butte 100 MTB Race?
- Saturday, July 18, 2026 in Butte, Montana at Homestake Pass, Butte, MT. Check the event page for exact start times and wave schedules.
- How do I register for the Butte 100 MTB Race?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
Butte 100 MTB Race
Jul 18, 2026