
It uses a mathematical algorithm to predict and control the flow of movement. The software Altenburg developed is called Start Right. RELATED: The 2021 Boston Marathon Will Be Postponed Altenburg has been working with race directors on modeling and optimizing the crowd flow so that racers can safely social distance in every aspect of race weekend.įrom buses shuttling racers to the start line 25 at a time to mask mandates everywhere but on the course, the team has seemingly thought through every moment with safety in mind. Race directors are hoping the event will go on June 17-19 as planned.Ĭonfidence of that happening was raised thanks to the help of Marcel Altenburg, a crowd scientist and senior lecturer at Manchester Metropolitan University in the UK. With most of America’s largest spring marathons either canceled, virtual-only, or postponed for the fall, Duluth, Minnesota’s Grandma’s Marathon could be the largest return to endurance running since the start of the COVID-19 pandemic. So get ready to once again tie up your laces for another year of memories, miles, and human might.Heading out the door? Read this article on the new Outside+ app available now on iOS devices for members! 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. The opening salvo to race day, the Garry Bjorklund Half Marathon is now arguably the most popular event on Grandma’s Marathon weekend. This 3.1-mile race on Friday evening starts and finishes near the historic William A.

The kickoff event to Grandma’s Marathon weekend since its start in 1994, is the William A Irvin 5K. 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.

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