The Prairie State Half Marathon course takes runners on a long, winding out-and-back route through Long Grove, about 35 miles northwest of Chicago. From the starting line along Robert Parker Coffin Road, runners make their way first up to Cuba Road, where they’ll make a long out-and-back stretch before heading south into the neighborhoods within Buffalo Creek Forest Preserve, before heading back north to Robert Parker Coffin Road for the race finish.
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Note: The course map above provides the approximate route for the race. Though every effort has been made to ensure its accuracy, changes are sometimes made to race routes due to weather conditions, road closures or other circumstances that can require a course to be changed. If you see an error above, contact us here.