2026 Grandma's Marathon Race Weekend

Grandma's Marathon Race Weekend 2026 in Duluth, Minnesota, United States, on June 19-20, is a celebration of the community spirit and a tribute to our nation’s heroes through the Great Grandma's Challenge - 5K and Marathon. This race weekend marks the culmination of weeks of dedicated fundraising efforts for Semper Fi & America's Fund, which supports critically wounded service members and their families.
The event takes place in Duluth on June 19th under a sky that often has hues of blue, with temperatures hovering around 17 degrees Celsius by day. The landscape is lush and green, with the St. Louis River running alongside the race route, creating an atmosphere where participants can connect with nature while focusing on their personal goals. Community energy is palpable as local businesses and residents come together to support both the runners and the cause.
With a rich history dating back since 1983, this marathon has become more than just a sporting event—it's a testament to resilience and unity. Over 200 participants from various backgrounds join each year, making it not only a race but also a community gathering. This marathon raises funds for Semper Fi & America’s Fund, which cares for our nation’s critically wounded, ill, and injured service members, veterans, and military families.
The course is designed to challenge runners with its varied terrain and surface conditions. Starting from 350 Harbor Dr., the route winds through downtown Duluth before heading along Lake Superior's shore, offering scenic views of the water and surrounding hills. The route features firm yet slightly soft surfaces, providing a mix of comfort and challenge for participants.
For those looking to participate in this race, registration can be completed online at [https://runsignup.com/Race/MN/Duluth/GrandmasMarathonRaceWeekend](https://runsignup.com/Race/MN/Duluth/GrandmasMarathonRaceWeekend). The event offers both the Great Grandma's Challenge - 5K and Marathon, with a $50 team fee plus respective fundraising amounts. Bib pickup details will be announced closer to race day.
Participants should plan for typical June weather in Duluth: average temperatures ranging from 12.7C at night to 21.8C during the day, with moderate UV levels due to clear skies. Runners are advised to prepare for partly cloudy conditions and a slight chance of rain as indicated by recent forecasts.

Logistics for this event include registration via [https://runsignup.com/Race/MN/Duluth/GrandmasMarathonRaceWeekend](https://runsignup.com/Race/MN/Duluth/GrandmasMarathonRaceWeekend). The race fee is $50.00, with additional fundraising requirements based on the distance chosen. Bibs can be picked up at a designated location after registration closes.
The start address for the event is 350 Harbor Dr., and it's important to note that only those who are aged 18 or older may participate in this race. First-time runners will find support from our Race Coordinator, ensuring they have all necessary information before the big day.
Grandma's Marathon Race Weekend on June 19-20 in Duluth is not just a run; it’s an opportunity to make a difference for those who have served us so bravely. Join us and help raise funds that will directly impact our nation's heroes.