Frozen 4 Hour & 5K - Duluth Winter Trail Series

Step into the heart of winter trail running at Duluth's Frozen 4 Hour & 5K on February 7, 2026. This timed challenge is the grand finale of the Duluth Winter Trail Series and offers a unique opportunity to explore Lester Park’s snow-packed trails in all their frozen glory. The event features two options: an endurance-focused 4-hour race or the shorter yet equally invigorating 5K run, both designed to showcase the park's meticulously groomed winter routes.
Runners will traverse smooth, fast, and scenic multi-use paths that reveal surprising speed on snow-packed terrain while offering breathtaking views of Duluth’s picturesque landscape. The event is a celebration of resilience and community spirit, where participants can enjoy the camaraderie at each loop finish back at the welcoming Lester-Amity Chalet.
Duluth locals hold these winter trails in high regard for their unique charm, even surpassing their summer equivalents with an added layer of adventure. Completing this race will earn you recognition as a Winter Trail Series Survivor, joining an elite group who have conquered all four distinctive events throughout Duluth’s stunning winter landscape.
Whether you are new to the sport or an experienced runner looking for fresh challenges, the Frozen 4 Hour & 5K provides an unparalleled opportunity to explore the city's topography in its most majestic season. This grassroots Minnesota tradition invites runners of all levels to embrace cold-weather adventure and experience firsthand how some of the best running happens under a blanket of snow.
Secure your spot today for this unforgettable event, where dressing warm is part of the fun and every step taken against winter’s elements strengthens bonds among participants in ways that only shared challenges can.