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Des Plaines River Trail Races

Lake County, United States • 11 Oct 2025

The Des Plaines River Trail Races, held in Lake County, Illinois, offer a scenic and fast trail running experience with distances including a Half Marathon, Marathon (Boston Qualifier), 50K, and 50 Mile ultra. Starting and finishing at Half Day Forest Preserve, the course features a flat, wide, crushed gravel trail free of roots and rocks, winding through lush forests and open wetlands. Major road crossings are safely managed via bridges or viaducts, with minimal minor crossings. The race is known for its beautiful fall colors and is ideal for personal bests. Aid stations provide water and snacks, and the event is cup-less, requiring runners to bring their own hydration. Visit the organization's website for the most recent information.

United States Illinois Lake County

Race information

Website Registration
50 mi
50 Mile
50 km
50k
42 km
Marathon
21 km
1/2 Marathon
Visit the organization's website for the most recent information.
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