Frozen 4 Hour & 5K - Duluth Winter Trail Series

Embrace the unique thrill of winter trail running on Duluth's premier snowpacked corridors at the Frozen 4 Hour & 5K on Saturday, February 7, 2026, the capstone event of the Duluth Winter Trail Series. This timed challenge invites you to push your limits on the smooth, fast, and scenic multi-use trails of Lester Park, discovering a new dimension of running where frozen routes offer surprising speed and breathtaking views. Whether you choose to maximize miles in the 4-hour endurance test or savor the crisp adventure of the companion 5K, you'll experience why locals cherish these groomed trails even more than their summer versions. It's a celebration of resilience and community, where dressing warm is part of the fun and every loop finishes at the welcoming Lester-Amity Chalet.

Complete this race to earn your status as a Winter Trail Series Survivor, joining a dedicated group who have conquered all four unique events across Duluth's stunning winter landscape. This series finale is designed for runners of all levels to explore the amazing topography of the city in its most majestic season, opening a whole new window of cold-weather adventure. Secure your spot in this grassroots Minnesota tradition, where the shared challenge against the elements forges unforgettable camaraderie and proves that some of the best running happens under a blanket of snow.