The Hidden Gem Half Marathon
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The Hidden Gem Half Marathon
The Hidden Gem Half Marathon is scheduled for September 12, 2026 in Flossmoor, Illinois. The 2026 race is sold out. The event has been recognized by the Chicago Area Runners Association as Race of the Year in multiple years.
The event is presented as a pure road race with minimal backtracks through distinct, tree-lined neighborhoods of Flossmoor. The organizer notes a new course route for recent editions and describes the route as shaded in places with residents lining parts of the course.
The race is timed in September, which the organizer highlights as a common preparation period for the Chicago Marathon. The organizer also notes practical details: the venue is less than 30 miles south of Chicago, there is METRA train line service to the race, and there is plenty of free parking available on race day.
Additional event features listed by the organizer include free beer for participants, runner swag and medals, and one of Illinois' largest cash prize pools. The Hidden Gem focuses on community involvement and on showcasing Chicago's south suburbs through the race experience. Visit the organization's website for the most recent information.
