University of Toledo | April 24

As a top 25-50 fastest course and historically having 20+ percent of our finishers qualifying for the illustrious Boston Marathon, GCM has grown from one of the longest-running marathons in the USA to an annual favorite for a field of 10,000 runners and walkers from all corners of the globe who are looking for a competitive challenge in a hometown atmosphere, with premium perks and a memorable experience at an affordable price.