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Butte 100 MTB Race

Butte 100 MTB Race is a mountain bike race on July 17, 2027 in Butte, MT, with entry fees from $150 to $200.

Date
July 17, 2027 (359 days to go)
Price
$150–$200
Sport
Mountain Bike
Register →

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

Butte 100$200
Tandem 100$200
Butte 50$175
Tandem 50$175
Tandem 25$150
Sorini 25$150

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

82°

Typical Low

46°

Chance of Rain

29%

Based on US Climate Normals data from Butte Bert Mooney Ap, 5 mi from the venue.

Sunrise 5:56 AMSunset 9:16 PMDaylight 15h 20m

Host City

About Butte, MT

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

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.

359

Days to train

Race
Butte 100 MTB Race
Date
July 17, 2027

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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.

Read the Guide

Mountain Bike

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.

Plan your trip

Make it a Racecation

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 Butte
Lodging
Flights
Rental Car
Activities

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 17, 2027. 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 17, 2027 in Butte, Montana at Homestake Pass. 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 17, 2027

Register →