High Five 100 - Lake City, CO
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High Five 100 - Lake City, Colorado (August 7 - 9, 2026)
The High Five 100 is an unmarked mountain endurance challenge that begins and ends in Lake City and must be completed within a 48 hour cutoff. The event requires visiting 24 specified locations that include proof points and checkpoints. Participants choose their own route between those points but must arrive at all points in order. Checkpoints are the only locations where runners may receive aid from their crew or from a preplaced drop bag. Instructions on proof points are provided at the pre-challenge meeting the evening before.
- 100 miles
- Estimated route between 90 and 105 miles
- 48 hours cutoff
The course accumulates over 40,000+ ft of elevation gain and includes summiting five 14,000 foot peaks and six 13,000 foot peaks while traversing rugged terrain in the San Juan Mountains. Organizers do not mark a course, do not provide aid stations, do not charge an entry fee, and do not award a medal at the finish. Applicants are reviewed by a committee; registration opens January 1 and closes February 1, after which a starter list and waitlist are selected. Applicants must have previously completed a 100 mile mountain ultra and should have extensive experience in demanding mountain 100 mile events. Runners are expected to follow wilderness regulations and show respect for the land. Visit the organization's website for the most recent information.
