Frozen 4 Hour & 5K - Duluth Winter Trail Series
Always double-check with the organizer's website! This page may contain affiliate links.
Event overview
The Frozen 4 Hour & 5K takes place in Duluth, MN on February 7, 2026. The event is held in Lester Park with the start and finish at the Lester-Amity Chalet, located near 2940 Seven Bridges Rd. The Frozen 4 Hour is a timed four-hour race on frozen, snowpacked, packed multi-use trails where participants attempt to run as many miles as possible within the time limit. A separate 5K trail race is also offered. Registration for the event closes on February 6, 2026.
Distances
- 5K
- Timed 4-hour race
Series details
The race is part of the Duluth Winter Trailrunning Series, a set of winter trail races run primarily on snowpacked fat bike trails in Duluth. The series schedule includes events at Chester Park, Lester Park, and Hartley Park (a 10K), concluding with the Frozen 4 Hour. Two races in the series include snowshoe and "no shoe" (trail running) divisions. Participants who register and pay for all four races on UltraSignup are eligible for a discount on the final race, and a special award is planned for runners who finish all four races. Visit the organization's website for the most recent information.
