Embrace the crisp embrace of winter at the Frozen 4 Hour and 5K, set to challenge and invigorate runners on February 7, 2026, in scenic Duluth, MN. This unique event, taking place in beautiful Lester Park, invites you to experience the thrill of winter trail running. Typical race day conditions often see highs around 20°F and lows near 2°F, with only a 4% chance of precipitation, creating an ideal frozen landscape for your adventure. Whether you opt for the timed 4-hour endurance challenge or the brisk 5K trail race, prepare for a truly memorable experience on Duluth's renowned snowpacked trails.

The course winds through Lester Park on frozen, snowpacked multi-use trails, celebrated by locals for being even more enjoyable in winter than during snow-free months. Runners in the 4-hour event will tackle a 5K primary loop, with the option to switch to a shorter 0.5-mile secondary loop during the final hour to maximize their mileage. The start and finish line are conveniently located at the Lester-Amity Chalet, serving as the central hub for this challenging yet fun event. Expect incredible topography and unique views of Duluth's winter wonderland as you navigate this "fun and scenic course".

As a highlight of the Duluth Winter Trailrunning Series, the Frozen 4 Hour and 5K offers a compelling opportunity for runners to test their mettle against the elements. Participants are drawn to the unique format of accumulating as many miles as possible within the four-hour limit, or enjoying a brisk 5K dash. Those who conquer all four races in the series even earn a special "Winter Trail Series Survivor" award. This race is designed to open a new window of winter fun, providing a distinctive trail running experience on smooth, snowpacked paths.