Wild Duluth Races

Downtown - Waterfront, United States • 18-19 Oct 2025

Wild Duluth Races, held in Duluth, Minnesota, offer rugged 100K and 50K ultramarathons on the Superior Hiking Trail, first established in 2009. The weekend also features the Harder ’n Heck Half Marathon and Terribly Tough 10K trail races, with dramatic views of Duluth and Lake Superior from rocky, rooty trail sections. Runners traverse the city limits while feeling like they’re in the wild, finishing at Spirit Mountain. A key feature is the Wild Man/Wild Woman challenge: complete the 50K and 100K on Saturday and the half on Sunday for the title. Volunteer participation can earn race discounts. Visit the organization's website for the most recent information.

Race information

UTMB 50K UTMB 100K
100 km
Wild Duluth 100k
50 km
Wild Duluth 50k
21 km
Harder 'n Heck Half Marathon
10 km
Terribly Tough 10k
Visit the organization's website for the most recent information.
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