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The NorthShore Inline Marathon

26 years in the making

Founded in 1996 by a group of dedicated inline skaters, the NorthShore Inline Marathon (NSIM) quickly grew becoming the world's largest skating race and has had competitors including Olympians professional hockey players, professional speed skaters, and more. NSIM's race is scattered over the beautiful scenic drive in between Duluth and Two Harbours Minnesota on the beautiful shores of Lake Superior. Our race runs close to the same route as the Grandma's Marathon that also takes place in Duluth Minnesota. 

in 2015 NSIM decided to add a few additional races to its weekend adding our NorthShore Wheels Off Half Marathon and our 42k and 21k Rollerski. We believe skating should be for all and drive to create a welcoming atmosphere for all skaters, runners, and skiers. In 2020 NSIM had one of its toughest years and unfortunately had to cancel their physical race due to the coronavirus that had shut down much of the United States. With that our team decided to create a virtual NorthShore which has also been added to our race list. We proudly host our events every year and are honored to be the largest skating marathon in North America.

Our Mission:

to foster national and international amateur inline skating competitions and to promote health and fitness through the organization, promotion, development, and execution of a recreational inline skating marathon and similar events.



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