High Five 100 - Lake City, CO
Lake City, United States • 7 Aug 2026
High Five 100 - Lake City, CO
The High Five 100 is a self navigated mountain endurance challenge based in Lake City, Colorado. Created by local ultra runners in 2018, the event requires participants to set out on foot from Lake City and visit 24 specified locations made up of proof points and checkpoints. The proof points document presence at a location while checkpoints are the only places where runners may receive aid from crew or from a personal drop bag. Instructions for proof points are given at a pre challenge meeting the evening before the event.
Runners choose their own route between proof points and checkpoints but must visit all points in the required order and return to Lake City before the 48 hour cutoff to be recognized as a finisher. The most practical route is estimated between 90 and 105 miles with over 40,000 ft of elevation gain. Completing the route involves summiting five 14ers and six 13ers and traversing rugged terrain in the San Juan Mountains. The event does not charge an entry fee, does not mark a course, does not provide aid stations, and does not award a medal to finishers. Participants are expected to follow wilderness regulations and show respect for the land. Registration for the 2026 event closed on January 31, 2026. Visit the organization's website for the most recent information.