Des Plaines River Trail Races
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About the race
The Des Plaines River Trail Races present multiple endurance trail distances along the Des Plaines River Trail in Lake County, Illinois, with start and finish at Half Day Forest Preserve. The event is in its 16th edition and is scheduled for October 10, 2026; it is held annually on the second weekend of October.
The course runs on a very flat, wide, crushed gravel trail that is free of roots and rocks. Runners pass alternating lush forests and open wetlands. The route is entirely on trail except for a few road crossings; major crossings use bridges or viaducts. There are 4 minor road crossings on the 50K and 50 mile courses, 2 on the marathon course, and none on the half marathon course.
Distances offered:
- Half Marathon
- Marathon (Boston Qualifier)
- 50K
- 50 Mile
Race logistics include aid station locations, drop bag options, and packet information. Registration opens January 1 at 10 am Central. Information about parking, shuttle details, and volunteer opportunities is provided by the organizer. Visit the organization's website for the most recent information.
