Wild Duluth Races
Duluth, United States • 17-18 Oct 2026
Wild Duluth Races
The Wild Duluth Races take place October 17–18, 2026 in Duluth, Minnesota, with Bayfront Park listed as the event location. The race weekend is organized by Adventure Running Co. and offers multiple trail distances and entry fee options.
The longer events are ultramarathons: the 100 K and 50 K are in their 18th year. The weekend also includes the Harder 'n Heck Half Marathon (13.1 miles) and the Terribly Tough 10K. Courses use sections of the Superior Hiking Trail and run mostly within Duluth city limits. The trail terrain is described as rugged, rocky and rooty, and several sections provide views of the city and Lake Superior.
Registration opened December 16, 2025 and closes October 12, 2026. Published entry fees range from USD 48.50 to USD 136.62 across available options. Shirt details are specified by distance: long sleeve shirts for the 100 K, 50 K and half marathon are unisex, while short sleeve shirts for the 10K are offered in separate men and women cuts.
Distances Visit the organization's website for the most recent information.
- 100 K ultramarathon
- 50 K ultramarathon
- Half marathon (13.1 miles)
- 10 K trail race