Leadville Trail 100 Mile Run
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About the race
The Life Time Leadville Trail 100 Run is an annual out‑and‑back ultramarathon held in and around Leadville, Colorado. The event is scheduled for August 2027 and the entry lottery is open December 1–15, 2026. The race traces high‑altitude forest trails and mountain roads around Turquoise Lake and Twin Lakes, with the course reaching Hope Pass at about 12,500 feet. Course distance is approximately 100 miles with more than 13,000 feet of elevation gain listed on course materials.
The course summary notes steep climbs, technical singletrack on the Colorado Trail, and multiple aid stations spaced along the route. Eleven aid stations are listed with water, sports drink, gels, bars and other foods; aid partners named include Neversecond and Skratch Labs. Crewing is limited to official crew locations and a shuttle system serves Twin Lakes; pacers are permitted beginning at the Twin Lakes inbound point (around mile 62) and each runner receives two pacer bibs at packet pickup.
Entry options include a lottery and qualification pathways; 2026 entry fee reference is $495 and 2027 pricing is pending. Minimum participation age is 18 on race day. The event operates on public lands under permits from the U.S. Bureau of Land Management and the San Isabel National Forest. Buckle awards are based on chip time: small buckle under 30 hours, big buckle under 25 hours. Visit the organization's website for the most recent information.
