Grandma's Marathon 2027
- Date
- June 19, 2027
- Location
- Duluth, USA
- Distance
- 42.2 km
- Difficulty
- Not rated
- Field
- 9,602 finishers
The 2027 Grandma's Marathon takes place on Saturday, June 19, 2027 in Duluth, USA. Grandma's Marathon is a point-to-point course running from Two Harbors to Duluth, Minnesota, almost entirely along Scenic Highway 61 beside Lake Superior. Race-week weather is typically 14°C to 22°C.
Training for the Grandma's Marathon?
Coach Icarus builds your plan around your fitness and your schedule.
The course
Grandma's Marathon is a point-to-point course running from Two Harbors to Duluth, Minnesota, almost entirely along Scenic Highway 61 beside Lake Superior. The first eight miles are a gradual descent, the middle miles (roughly 9-16) roll through small lakeside communities, and the defining late-race challenge is Lemon Drop Hill at mile 22, a short climb of about 30 vertical feet. It finishes in Canal Park near the Aerial Lift Bridge. Net elevation drop is about 130 feet, though the rolling middle section makes it less flat than it appears.
Course summary source: findmymarathon.com
Course map & elevation
Distance
42.2 km
Elevation gain
55 m
Elevation loss
94 m
High / low
228 / 185 m
🛰️ Community-sourced GPX with DEM-corrected elevation — not an organizer-verified course.
Race-week weather
Typical high
22°C
Typical low
14°C
Year-to-year swing
±1.5°C
Rain
3.4 mm/day
Based on 2020-2025 of race-week history, with peak gusts around 20 km/h.
Difficulty
Race facts
- Official race site
- grandmasmarathon.com ↗
- Start time
- 07:35
- Field size
- 9,602 finishers (2026)
- Boston qualifier
- Yes
Distances: 42.2 km · 21.1 km
When is the Grandma's Marathon 2027?
The 2027 Grandma's Marathon takes place on Saturday, June 19, 2027.
Training for the Grandma's Marathon?
Coach Icarus builds your plan around your fitness and your schedule.
Predict your finish time
Enter one recent race result and get predicted finish times across 5K, 10K, half marathon, and marathon.
Predicted Finish Time
52:07
Pace / km
5:13
Pace / mile
8:23
| Distance | Predicted Time |
|---|---|
| 5K | 25:00 |
| 10K | 52:07 |
| Half Marathon | 1:55:00 |
| Marathon | 3:59:47 |
Predictions assume similar fitness, course, and conditions — they are a starting point for goal setting, not a guarantee.
More USA races
November 14, 2026
Charlotte Marathon
Charlotte · Marathon
November 14, 2026
Richmond Marathon
Richmond · Marathon
November 22, 2026
Philadelphia Marathon
Philadelphia · Marathon
November 29, 2026
Seattle Marathon
Seattle · Marathon
December 6, 2026
California International Marathon
Sacramento · Marathon
December 12, 2026
Jacksonville Marathon
Jacksonville · Marathon
