Founded in 1995 the NorthShore Inline Marathon is North America’s largest skating race. Every year thousands of athletes of all ages come to Duluth to participate in our skating, running, and skiing races. With a historic route, great views, and an even better community; NSIM has been called one of the best inline marathons in the world by countless individuals and has become a tradition for many. Come join us this year for our 25th anniversary. Bring friends, make memories, and skate on.

Friday, September 17, 2021:

Expo & Packet Pickup | noon – 9pm
Kids Sprints 4:00pm Activities Arena (DECC South Pioneer Hall) – Free

Saturday, September 18, 2021:

6:45 am – Half Marathon Skate & Combined
6:50 am – 21k Rollerski
7:00 am – St. Luke’s Wheels Off Half Marathon Run
7:45 am – Tunnel 10k Skate
8:00 am – Tunnel 10K Run
8:30 am – 42k Rollerski
8:45 am – NorthShore Inline Marathon
9:09 am – Combined 39.3 Wave
Noon – Run Awards – The Sports Garden
2:30 pm – Skate Awards-The Sports Garden