Wild Duluth Races
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Event overview
Wild Duluth Races take place in Duluth, Minnesota on October 18-19, 2025. The event includes ultramarathon and trail race distances run largely on the Superior Hiking Trail within Duluth, with sections that include views of Lake Superior. Saturday features the ultramarathons with starts at Bayfront Park and Oldenburg Point Picnic Area (Jay Cooke State Park) and a finish at Bayfront Park. Sunday features the Harder 'n Heck Half Marathon and the Terribly Tough 10K, starting at Chambers Grove Park and the Munger Trail trailhead, and finishing at Spirit Mountain.
Distances, course features, fees and registration
- 100K
- 50K
- 13.1M (Half Marathon)
- 10K
The half marathon and 10K routes include Ely's Peak. The half marathon crosses Becks Road once and uses rocky, rooty sections of the Superior Hiking Trail. Organizers offer a WILDMAN/WILDWOMAN challenge for runners who combine races across the weekend (50K plus half; or 100K plus half or 10K). Runners who volunteer the day before or after certain races may receive a discounted entry; coupon codes are provided by the organizer. Entry fees listed are: 100K $120 by September 17 ($130 after), 50K $95 by September 17 ($105 after), Half Marathon $85 by September 17 ($95 after, 350-runner limit), and 10K $45 by September 17 ($55 after). Registration closes October 12, 2025. Long-sleeve shirts for 100K, 50K and the half are unisex; 10K shirts come in men’s and women’s cuts. Visit the organization's website for the most recent information.