Wyoming Range 100-Mile Endurance Run

AUG
6
2027
A 100 mile mountain endurance race in the Wyoming Range on August 6, 2027, with high elevation, remote trail sections, mandatory service hours, and required safety gear.
Fri 6 Aug 2027
100 miles

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Wyoming Range 100-Mile Endurance Run

The Wyoming Range 100-Mile Endurance Run is a 100-mile race on August 6, 2027, organized by Everlong Endurance and held in the Box Y Ranch / Middle Piney Lake area of Wyoming. The course follows the Wyoming Range National Recreation Trail and is routed to provide an extended wilderness experience while remaining a fully supported event.

The route includes about 24,000 feet of climbing and averages nearly 8,600 feet in elevation. Runners should expect rough trail, sections that require way-finding, and long stretches between aid stations. Weather and mountain hazards can include snow, lightning, and white-out conditions in clouds. The race takes place in grizzly country and requires participants to carry bear spray.

Entry for 2027 uses a lottery that opens on February 1, 2027, and the field will likely be capped at around 100 runners. Finishers receive a Hardrock qualifier.

All entrants must complete at least eight hours of trail work or wildlife habitat restoration at least two weeks before race day, or alternatively donate $80 to Friends of the Bridger-Teton and provide a receipt; organizers will validate completion. Required gear includes a Garmin GPS device for live tracking and bear spray; rental options are offered at checkout. Visit the organization's website for the most recent information.

100 mi
100 Miler
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