Grandma’s Marathon

Explore the Grandma's Marathon profile – location, course details and sub-3 stats. Part of the global Sub-3 Marathon Rankings.

Grandma’s Marathon

Location: Duluth, Minnesota
Country: United States
Website: https://grandmasmarathon.com/the-marathon/
2025 Marathon Date: 21/06/2025
2026 Marathon Date: 20/06/2026
Winning Time 2025: 02:11:58
% Sub-3s: 5–10%
# Sub-3s: 500-999
Total Runners: 3k–10k

Grandma’s Marathon is a much-loved American point-to-point race held each June along the northern edge of Lake Superior. It has earned a loyal following for its flat, fast course and small-town hospitality—making Grandma’s Marathon a fixture on many US runners’ calendars, especially those aiming for Boston qualifiers or personal bests.

The course begins just south of Two Harbors and follows the scenic North Shore Highway southwest toward the city of Duluth. It features a steady, gentle net downhill, with only a few short climbs interrupting the flow. The views are expansive and unbroken, with pine forests, lake breezes, and occasional glimpses of the water adding to the mental lift.

Weather is a wildcard. While early starts often bring cool lake air and ideal racing temperatures, unexpected warmth or humidity can emerge by mid-morning. The route’s openness means limited shade, so hydration strategy is important. Thankfully, the race is well-supported, with frequent aid stations and energetic volunteers lining key points.

Organisation is tight-knit and efficient. Despite its name, Grandma’s Marathon is a serious event, with a strong elite field, sharp logistics, and a vibrant community around it. Everything from transport to the start to finish-line refreshments is smoothly handled, thanks to decades of fine-tuning by local organisers.

Sub-3 runners will find excellent pacing groups, steady competition, and one of the most generous atmospheres on the US calendar. Grandma’s Marathon delivers a feel-good race that doesn’t compromise on standards. Its size is large enough for energy but small enough to keep things personal.

For those seeking a fast, scenic, and authentically Midwestern marathon experience, Grandma’s Marathon more than delivers. With its legendary name, stunning backdrop, and strong tradition of performance, it stands out as a high-quality race that balances old-school charm with modern excellence.


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