Butte, Montana · Trail
Official site ↗Copper Kings 100
A 100-mile loop from the Belmont Mine in Butte, Montana, with 63 miles on the Continental Divide Trail, 13,960 feet of climbing and a 40-hour limit.
Distances
- Distance
- 100 mi (161 km)
- Vert gain
- 13,960 ft (4,300 m)
- Cutoff
- 40 hr
WSER 2028 qualifier (sub-40:00)
| Distance | Vert gain | Cutoff | Notes |
|---|---|---|---|
| 100 mi (161 km) | 13,960 ft (4,300 m) | 40 hr | WSER 2028 qualifier (sub-40:00) |
About
The Copper Kings 100 is a single 100-mile loop that starts and finishes at the Belmont Mine in Butte, Montana, and 63 of its miles are on the Continental Divide Trail. The organiser puts the climbing at 13,960 feet. It starts at 4 a.m. on a Friday and the final cutoff is 8 p.m. on the Saturday, 40 hours later.
The 2026 race ran on June 26, and Adam Behrendt won it in 17:49:01. The 2027 race is on Friday, June 25, and registration opens on December 6, 2026. A 2027 finish is a Western States 100 qualifier. Onward Endurance puts the race on with the Montana Endurance Trail Foundation.
Course
One 100-mile loop from the Belmont Mine in Butte, including 63 miles of the Continental Divide Trail, with 13,960 feet of climbing and descent by the organiser's figure. The 4 a.m. Friday start leaves 40 hours to the 8 p.m. Saturday final cutoff.
How to register
Entry is on UltraSignup and opens at 10 a.m. Mountain time on Sunday, December 6, 2026, the day after the Western States lottery. No qualifier is required. The race publishes no fee, cap or closing date ahead of opening.
Results by year
Official links
Races nearby
- Crazy Mountain 100 · Wilsall, Montana · Jul 30, 2027 · 91 mi away
- Beaverhead Endurance Runs · Salmon, Idaho · 100 mi away
Races around the same time
- Lavaredo Ultra Trail · Cortina d'Ampezzo, Italy · Jun 25, 2027
- Torrencial Chile by UTMB · Valdivia, Chile · Jun 24, 2027
- Western States 100 · Olympic Valley, California · Jun 26, 2027
- Ultra Trail Whistler · Whistler, Canada · Jun 26, 2027
- Kaga Spa by UTMB · Yamanaka Onsen, Japan · Jun 19, 2027
Western States qualifiers
Copper Kings 100 is a Western States qualifier. Every qualifying race, the lottery dates and the odds.