Frozen 4 Hour & 5K - Duluth Winter Trail Series
Lakeside/Lester Park, United States • 7 Feb 2026
Frozen 4 Hour & 5K : Duluth, MN
The event includes a 5K and a timed 4-hour race. The Frozen 4 Hour is a timed race in which competitors attempt to run as many miles as possible in four hours on packed, snowcovered multi-use trails. The start and finish for the Frozen 4 Hour are at the Lester-Amity Chalet in Lester Park. The listed location is 2940 Seven Bridges Rd, Duluth, MN. Registration closes on Fri, Feb 6 at 11:59 PM CT.
Course and series information
The races take place on packed fat bike and multi-use trails in Duluth. The Duluth Winter Trailrunning Series includes multiple winter trail races at locations such as Chester Park, Lester Park, and Hartley Park, and one race in the series is a 10K route in Hartley Park. Two of the series races will offer snowshoe and "no shoe" (trail running) divisions. Entrants who pay for all four races in the series receive a discount on the last race. Runners who finish all four races receive a special award as a Winter Trail Series Survivor. Visit the organization's website for the most recent information.