Grandma's Marathon
Duluth · Jun 20, 2026
A classic American summer marathon along the world's largest freshwater lake. The June course follows the scenic North Shore of Lake Superior from Two Harbors to Duluth, with the iconic Aerial Lift Bridge marking the dramatic finish.
Date
Jun 20, 2026
Difficulty
Moderate
Elevation
~240m elevation gain
Field Size
18,000 runners
Course
Starting from Two Harbors, along Lake Superior North Shore, past Canal Park and Lift Bridge, finishing in downtown Duluth
Tips
- •June temps around 12-22°C, cool by the lake — bring layers for the early start
- •The course is net downhill but has some rolling hills along the shore
- •Pre-race visits: Canal Park, Aerial Lift Bridge, Glensheen Mansion, Gooseberry Falls
- •Duluth is surprisingly hilly — explore the city on foot after the race
Lake SuperiorNorth ShoreAerial Lift BridgeSummer Classic