Leadville Trail 100 Mile Run

Leadville Trail 100 Mile Run

The Leadville Trail 100 Mile Run is an out-and-back ultramarathon held in the Colorado Rockies. Established in 1983, the event takes place in high-altitude terrain, starting at an elevation of 10,200 feet. The course reaches its highest point at Hope Pass, which stands at 12,626 feet above sea level. Participants navigate a combination of forest trails and mountain roads, accumulating approximately 15,492 feet of total elevation gain throughout the race.

The race follows a strict 99.7-mile route with 11 aid stations positioned along the course. These stations provide hydration, energy gels, and various food items. Runners pass through several key locations twice, including Mayqueen, Outward Bound, and Twin Lakes Village. Specific time cutoffs are enforced at several checkpoints to ensure safety and course management.

Distances:

• 99.7 miles

To be recognized as an official finisher, participants must complete the course within 30 hours. Runners finishing under 25 hours receive a large silver and gold belt buckle, while those finishing between 25 and 30 hours receive a small belt buckle.

Support crews are permitted at four designated locations: Outward Bound, Pipeline, Twin Lakes Village, and Mayqueen. Pacers may join their runners starting from the Twin Lakes inbound station at mile 61.8. The event also includes a pre-race expo and a mandatory athlete meeting. Due to the high-altitude environment, weather conditions can vary significantly, ranging from sunny intervals to rain, hail, or snow. Visit the organization's website for the most recent information.