Leadville Trail 100 Mile Run
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About the race
The Life Time Leadville Trail 100 Run is a long-distance out-and-back trail race held in the Colorado Rockies. The 2027 edition is scheduled for August 21, 2027 and the event lottery is open December 1–15, 2026. Minimum participation age is 18 on race day.
The course covers roughly 99.7 miles on forest trails and mountain roads, with summit elevations near 12,500 feet and total climbing of more than 13,000 feet on typical routes. The route includes high passes such as Hope Pass and sections named Powerline, Sugarloaf, and parts of the Colorado Trail. The race operates under special permits on public lands with the U.S. Bureau of Land Management and on the San Isabel National Forest.
Aid is available at about a dozen stations offering water, Neversecond energy products, Skratch Labs hydration and bars, Pickle Juice Company products, and assorted food. Crewing and pacer policies are defined: pacers are allowed starting at Twin Lakes inbound (mile 61.8), each runner receives two pacer bibs at packet pickup, and pacers must wear a bib and complete a waiver. Crew access is limited to official crewing locations and subject to wristband and shuttle rules.
Finishers who complete the course within chip-time limits receive belt buckles; big buckle eligibility is under 25 hours and small buckle eligibility is under 30 hours. Visit the organization's website for the most recent information.
