350 Harbor Drive, Duluth MN
Friday, September 18th, 2026
Event Overview
- Foundation Year: Founded in 1996, the NorthShore Inline Marathon is dedicated to spreading the love of inline skating and overall fitness.
- Annual Participation: Every year thousands of athletes of all ages come to Duluth to participate in this one-of-a-kind event.
- Route Highlights: The NSIM offers a historic route, great views, and an even better community.
- Acknowledgment: It has been called one of the best inline marathons in the world by countless publications and has become a tradition for many.
Running Division
- St. Luke's Half Marathon: This event begins on the scenic North Shore highway, taking runners through the Northland woods, passing through the tunnels of Interstate 35, and concluding alongside the iconic William A. Irvin.
- Finden Marketing Tunnel 10k: Offers runners a unique experience of traversing the I-35 tunnels, covering 6 miles of interstate before finishing near the William A. Irvin.
- Breathtaking Experience: Both runs showcase the beauty and charm of Minnesota's landscape.
- Community Involvement: Join a vibrant community of runners and spectators during the event.
Ski Division
- Emerging Division: Our FinnSisu Ski Division is an emerging part of our race series.
- Rollerski Options: Offers roller skiers of all skill levels two options: a 42k and a 21k Rollerski.
- Atmosphere: Participants can ski alongside over 2,000 inline skaters, immersing themselves in the event's lively atmosphere!
- Inclusivity: This division encourages all skill levels to join in the fun.
Join Us
- Date: 2026-09-18
- Location: 350 Harbor Drive, Duluth, MN
- Commemorative Year: Come join us this year for our 28th year of skating.
- Make Memories: Bring friends, make memories, and skate on!
More Information
- Registration: For more details, visit NorthShore Inline Marathon.
Course Map
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