Logo

Frozen 4 Hour & 5K - Duluth Winter Trail Series

Lakeside/Lester Park, United States • 7 Feb 2026

Frozen 4 Hour & 5K is a Duluth, Minnesota winter trail event within the Duluth Winter Trailrunning Series. The program offers a 4-hour timed race and a 5K on snow-packed, multi-use trails in Lester Park, with the start/finish at the Lester-Amity Chalet. Runners experience Duluth’s winter topography and scenic views on packed fat-bike trails that are popular for winter running. The series emphasizes fun and challenge, with occasional snowshoe and no-shoe divisions across races. Notable features include a discount for registering for all four races and a special Winter Trail Series Survivor award for completing the series. Visit the organization's website for the most recent information.

United States Minnesota Lakeside/Lester Park

Race information

Website Registration
4 km
4 Hour
5 km
Visit the organization's website for the most recent information.
Trail runs nearby

Wild Duluth Races

Downtown - Waterfront - 5 mi from Lakeside/Lester Park

Wild Duluth Races feature ultramarathons and shorter trail races on the rugged Superior Hiking Trail, with rocky, rooty terrain and views of Lake Superior and Ely's Peak. Expect challenging trails and stunning scenery.

UTMB Index

Chester Rim 5K -Duluth Winter Trailrunning Series

Chester Park - 3 mi from Lakeside/Lester Park

Chester Rim 5K in Duluth, Minnesota, starts in Chester Park and follows the Chester Rim Trail, part of the Duluth Traverse. The loop drops below Skyline and runs along Chester Creek, with waterfalls along the gorge. It’s a flowing, fast, an..

Northwoods Marathon & Half Marathon

Lakeside/Lester Park

Northwoods Winter Marathon and Half Marathon Championships take place in Duluth, Minnesota, as part of the Duluth Winter Trailrunning Series. Runners traverse the fat bike trail network in Lester Park, with the Hawks Ridge fat bike trail of..

Hartley Park 10K

Woodlands/Pleasantview - 3 mi from Lakeside/Lester Park

Hartley Park 10K in Duluth, Minnesota, is a winter trail race run on the packed fat-bike trails inside Hartley Park. The 10-kilometer course offers a quintessential Duluth winter experience, set in the heart of the city and favored by long-..