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Submit Your PredictionDuluth, MN
Saturday, June 19, 2027




4.5 Stars from 26 ReviewsGrandma’s Marathon features a fast, scenic, point-to-point course that is favored by runners chasing a Boston Marathon qualifying time or PR in a late spring race. The route is known for its fast, net downhill profile, presenting a gentle overall descent of approximately 130 feet from start to finish. Despite its reputation for speed, the course is not entirely flat, throwing a mix of gentle rolls and late race inclines at participants.
The entire 26.2 mile race is run on paved road surfaces, primarily following the asphalt of Scenic Highway 61. The course begins in the small lakeside town of Two Harbors and traces the North Shore south directly into Duluth, keeping Lake Superior visible on the runner's left for the parts of the race. Because it is a point-to-point course along the coastline, runners rely on a morning shuttle bus to reach the start line, and the route is heavily exposed to changing lakeside weather, including varying winds and rising mid-June temperatures.
The opening eight miles provide a gradual descent that can deceptively tempt runners into a pace that is too fast. The middle section, from miles 9 to 16, shifts inland through small lakeside communities where the terrain transitions into a series of undulating, rolling hills. The defining challenge of the course arrives late at mile 22 with Lemon Drop Hill - a short but demanding climb of about 30 vertical feet that tests fatigued legs. Aid stations are heavily supported and spaced every two miles early on, becoming even more frequent past the midpoint. While the early rural miles offer quiet pockets, the final leg features dense, enthusiastic crowd support as runners enter the city of Duluth, finishing in Canal Park near the historic Aerial Lift Bridge.
A successful pacing strategy requires strict discipline over the first half of the race, consciously holding back on the early downhills to protect the quadriceps from cumulative fatigue. Runners who overextend early often find their goals falling apart when confronting the mid-course rollers or the incline at Lemon Drop Hill.
Learn more about the perfect pacing strategy for the Grandma's Marathon - Grandma's Marathon: Course Analysis and Pacing Strategy Guide
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Race Dates
2027: Saturday, June 19, 2027Course Information
Profile: Mostly FlatRace Day Weather
Mean Temp.: 61°F (16°C)PR Score & Course Score
PR Score: 98.00Race Size
2026: 9,602 FinishersBQ Percentages
2026: 10%Miscellaneous Information
Pace Groups?: Yes
Race Day Temperatures |
High: 67°F (19°C) |
Race Start Conditions |
58°F (14°C) |
PR Score |
97.53 |
Course Score |
99.28 |
The Grandmas Marathon was the 11th largest marathon in the U.S. in 2025 based on the number of finishers. In 2024, it ranked as the 10th largest marathon in the U.S..
In 2026, 10% of Grandmas Marathon finishers have achieved Boston Marathon qualifying times. In 2025, 11.5% of finishers qualified for the Boston Marathon.
Based on its percentage of Boston Qualifiers (BQs), the Grandmas Marathon ranked 113th among marathons in the U.S. in 2025 and currently ranks 81st so far in 2026. In Minnesota, it ranked 3rd in 2025 and 3rd so far in 2026. These rankings provide a useful benchmark for comparing the Grandmas Marathon with other Boston Marathon qualifying races.
The Grandmas Marathon has a Course Score of 99.12, ranking it as the 198th fastest marathon course in the U.S. and the 4th fastest marathon course in Minnesota.
Typical race-time temperature and humidity levels are above the ideal range for optimal marathon performance. Combined with the course profile, this gives the Grandmas Marathon a PR Score of 98.00. The PR Score ranks the Grandmas Marathon as the 284th best marathon in the U.S. for running a Personal Record (PR) and the 7th best marathon for a PR in Minnesota.
Together, these rankings provide a quick snapshot of how the Grandmas Marathon compares with other marathons in the U.S. and Minnesota for speed, PR potential, Boston Marathon qualifying success, and overall participation.
Max Elevation: 737 feet (224m)
Min Elevation: 605 feet (184m)
Elevation Gain: 557 feet (169m)
Elevation Loss: 685 feet (208m)
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They've been around 50 years for a reason.
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Hotel class
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Breathtaking scenery, 2025
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Great crowd support
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The best views ever!
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The organizers might be overwhelmed
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Very Disappointing - did not live up to its hype
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Great marathon with a couple drawbacks
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Amazing views ands support
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Well organized and great crowd support
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Well organized race with great support
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Well organized, coordinated marathon
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The course is flat and very fast
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You can't beat the views
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Beautiful course, well organized.
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Save energy for Lemon Drop Hill
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North Shore
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