Huron 100
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Huron 100 - June 6, 2026
The Huron 100 is a point-to-point trail event in the Huron River Watershed near Grass Lake, Michigan. The event includes two distances:
- 100 miles
- 50 miles
The race is organized as a 501(c)(3) public charity. Proceeds support the Huron River Watershed and the event aims to be cupless and zero waste.
Course, support and logistics
The 100 mile course travels through 6 State Recreation areas, 2 Metroparks and 1 County Park (9 regional parks total). Surface distribution for the 100 mile course is about 80% trail, 9% bike path, 7% dirt road, 3% paved road or gravel and 1% gravel path. The 50 mile course is about 83% trail with similar minor surface types. Approximate cumulative elevation gain is 8,000 ft for the 100 mile and about 4,300 ft for the 50 mile. The 100 mile course has 15 aid stations including 8 crew-access stations and a 32 hour cut-off. The 50 mile course has 8 aid stations including 3 crew-access stations and a 15 hour cut-off. Start location is Waterloo State Recreation Area - Portage Lake; finishes are at Proud Lake (100 mile) and Country Lake Elementary School (50 mile). Packet pickup is scheduled for the day before the race. Finishers within their cut-offs receive a buckle (100 mile) or a medal (50 mile). Refund and transfer policies are specified with deadlines and partial refund levels. Volunteers receive shirts and registration discounts. Visit the organization's website for the most recent information.