When
Jun 20, 2026
Starts at 7:35am CDT
Weather
Forecast
🌦️ Drizzle · 15°C–25°C
· 17% · Wind 20 km/h
Registration
Registration Closed
Closed May 1, 2026
Website
Official website →
Event Details
The Grandma’s Marathon course is a picturesque, point-to-point 26.2-mile stretch along the beautiful shores of Lake Superior. With rolling hills and a net downhill elevation, our racecourse starts north of Duluth, MN near Two Harbors and runs along Scenic Highway 61, hugging the shores of Lake Superior before taking participants through the heart of downtown Duluth and finishing in historic Canal Park
Event type
Full-Marathon
Distance
42.2 km
Surface
Road
Registration opens
October 1, 2025
Registration closes
May 1, 2026
Add to Race Diary
Sign in to save this race
Start your Race Diary and track your upcoming races.