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Butte 100 MTB Race

Name: Butte 100 MTB Race
Start: 2026-07-18
End: 2026-07-18
Location: Butte, Montana

location_city Butte

location_on Montana

flag United States

calendar_today 18 Jul, 2026

directions_bike Cycling

language Official Website

About the Event

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.

Races Offered

Butte 100

Jul 18, 2026

straighten

Distance — 104.1 Miles

terrain

Type — Road Cycling

timer

06:00

Tandem 100

Jul 18, 2026

straighten

Distance — 104.1 Miles

terrain

Type — Road Cycling

timer

06:00

Butte 50

Jul 18, 2026

straighten

Distance — 54.6 Miles

terrain

Type — Road Cycling

timer

07:00

Tandem 50

Jul 18, 2026

straighten

Distance — 54.6 Miles

terrain

Type — Road Cycling

timer

07:00

Sorini 25

Jul 18, 2026

straighten

Distance — 29.6 Miles

terrain

Type — Road Cycling

timer

08:00

Tandem 25

Jul 18, 2026

straighten

Distance — 29.6 Miles

terrain

Type — Road Cycling

timer

08:00

Weather Overview

These values represent the 3-year monthly averages for July in Butte.

Temp (°C)

Feels Like (°C)

thermostat 10.8° / 27.1°

wb_sunny 9.1° / 23.2°

Wind (km/h)

Humidity (%)

air 7.3 /

water_drop 45.6%

Temp (°C)

Feels Like (°C)

Wind (km/h)

Humidity (%)

thermostat 10.8° / 27.1°

wb_sunny 9.1° / 23.2°

air 7.3 km/h

water_drop 45.6%

About Butte

Butte is one of the major towns in Montana, with a population of 35,000 (2020). In its heyday between the late 19th century and about 1920, it was one of the largest and most notorious copper boomtowns in the American West, home to hundreds of saloons and a famous red-light district.