NorthShore Inline Marathon 2023

The 27th annual NorthShore Inline Marathon is a 26.2-mile race along Highway 61. The half marathon starts at 6:45 a.m. and the full marathon starts at 8:45 a.m. The course follows the same route as Grandma’s Marathon from Two Harbors down the North Shore, then rolls through the I-35 tunnels and finishes at the Duluth Entertainment Convention Center.

In addition to the full and half inline marathons, there is a roller-ski marathon, a combined 39.3 marathon, a wheels-off half marathon run and a 10k run through the freeway tunnels.

At 3 p.m. Harbor Drive between the Irvin slip and the Aquarium will close to traffic for Kid’s Inline Sprint Races. The Great Lakes Aquarium lot will remain accessible during this time.

Several area roads will close for the marathon. Parking will be prohibited on the closed roads, and vehicles found in violation will be subject to ticketing and towing.

Roads will re-open from east to west as racers near the finish area on Harbor Drive near the DECC. All roads will reopen by 2 p.m.

Downtown Duluth and Canal Park will remain open to traffic during this event. Canal Park, Park Point, the Great Lakes Aquarium and the DECC will be accessible by using Lake Avenue to Railroad Street or southbound on Fifth Avenue West to Railroad Street.