Welcome to the official mobile app of Grandma's Marathon Weekend, June 16-17, 2023.

Use the app to track your favorite runners in the Marathon and Half Marathon and for all event details, race information, course maps and key updates to keep you informed for the 2023 Grandma's Marathon weekend!

In what’s become the largest community event of each calendar year, Grandma’s Marathon weekend has now become the unofficial kickoff to summer in Duluth and the surrounding region. It’s a time that our city and community throws open its doors to welcome participants from all over the world and introduce them to our race and way of life in northern Minnesota.

The kickoff event to Grandma’s Marathon weekend since its start in 1994, is the William A Irvin 5K. This 3.1-mile race on Friday evening starts and finishes near the historic William A. Irvin ore boat in Duluth’s Canal Park. The opening salvo to race day, the Garry Bjorklund Half Marathon is now arguably the most popular event on Grandma’s Marathon weekend. Since our inaugural race in 1977, Grandma’s Marathon has grown into something much bigger than just a 26.2-mile race along the scenic North Shore of Minnesota.

So get ready to once again tie up your laces for another year of memories, miles, and human might.