Race Info & Schedule

2015 Butte 50 & 100 mile races

 July 26, 2014

Starting in 2007 as a small group of mostly locals, the Butte 100 has seen substantial overall growth in its short, yet rich history. The race has recently been recognized in nationwide publications as an ultimate test of mountain biking’s physical and mental aptitudes. A focus of Triple Ring Productions (TRP), the organizing body of the race, is continued improvement in racer experience at each and every Butte 100 event. TRP is proud to be aiding in the growing awareness of Butte, Montana as a world-class recreation city.

Though this entire event is named the “Butte 100,”  it actually consists of two individual races; a 50-mile and 100-mile race, both run in conjunction and support of the other. The races share portions of course, supplies, aid stations, and the start/finish area. The trails of the “toughest mountain bike race in the country” are staffed by the capable and tireless volunteers making up the Neon Army.

Butte 50 mile mountain bike race startUpon registration, each racer will receive a 40-page race bible in the mail. This publication will contain many of the race details not covered on the website and serves to aid in course, area, sponsor, and race-weekend familiarity.

The 100-mile racers will endeavor to complete a full figure-eight course that nearly includes the pedaling equivalent of climbing Mt Rainer. However, only the 100’s will get to experience the riches awaiting them in the high-altitude desert of the BLM’s Pipestone area. The north portion, or “North Loop” progresses through dense forested areas, meadows, and a rumored cuss-inducing high elevation desert before returning to the start/finish area and the North Loop’s completion.While the 100’s are slogging through the sand at the top portion of the “figure-8,” the 50-mile racers will start with a small starting loop, then set off to begin the daunting southern loop portion of the “8.” The 100’s will head through the start/finish area and join the 50-miler’s on the already warmed-up southern loop.

The 50-mile course will include a small 4~5-mile loop to start; designed to both warm up the riders and spread them out before tackling the initial technical descent. Awaiting all riders –50’s and 100’s alike– is the notorious 6-mile Basin Creek Climb looming over the shoulders of all riders about half-way through the southern loop. The first male and female in both races making the top are rewarded with King & Queen of the Mountain honors. Those surviving this far are greeted with a dreamy 35-mile stretch of the USFS maintained Continental Divide Trail. This silky single-track has been the unparalleled jewel in the Butte 100’s crown. It’s downhill finish reawakens racers from their trail trance and wills them across the finish line.

The 50-mile race has nearly 8,500 feet of total elevation gain and is roughly 75% single track- about 30 miles of that is on the Continental Divide trail. The 100-mile race has roughly 16,600 feet of elevation gain along 55% double track, 35% single track, and 10% gravel/logging roads.

Waiting for you across the finish line is the coveted finisher’s mug, along with bountiful finisher mugsvarieties of pasta and drinks. We encourage everyone–racers, families, sponsors, and friends–to hang out, listen to some music, exchange war-stories from the trail, and await the award ceremony & raffle at 8:00 p.m.

Race Schedule

Thursday, January 1, 2015

6:00 p.m. (Mountain Time) Lottery Registration opens

Sunday, March 1, 2015

6:00 p.m. (Mountain Time) Lottery Registration closes

Monday, March 2- Sunday, March 8, 2015

Lottery Racers must register- waiting list racers contacted beginning March 9

Sunday, July 12, 2015

Racer cancellation with refund ENDS

Thursday, July 23, 2015

4:00 -6:00 p.m.
Packet Pick-up: Maroon Activities Center (MAC) 550 E. Mercury St.
*we encourage all local racers and those in town to register at this time to help reduce traffic during Friday’s registration.

Friday, July 24, 2015

2:00-6:00 & 7:00-9:00 p.m.
Packet Pick-up: Maroon Activities Center (MAC) 550 E. Mercury St.
*There will be NO Pick-up taking place during racer meeting, but will resume after the meetings for those arriving late*

6:00 p.m.
ALL RACER’S MANDATORY meeting: MAC (last minute course corrections, safety hazards, and race rules will be discussed)

Saturday, July 25, 2015

5:45 a.m.
100-mile race roll-call: Homestake Pass
6:00 a.m. 100-mile race start

7:45 a.m.
50-mile race roll-call: Homestake Pass
8:00 a.m. 50-mile race start

7:00 p.m.
Award Ceremony & Raffle: Finish Area at Homestake Pass (stick around for over $2,000 worth of swag to be raffled off)


Beginning in 2015, entrance to the 2015 Butte 100 is now lottery-based.Please click here to visit the registration page for more details.

Lottery Registration Period: January 1, 2015 through March 1, 2014. Waiting list will be constructed by lottery also, racers signing up for the waiting list after March 1 will be added to the end of the list.

Butte 100 mountain bike racetrail