The John Bryan Trail Race takes place in John Bryan State Park in Yellow Springs, OH, offering a trail 1/2 Marathon, 8 Hours of Power, 10K, 5K & 20K Relay. The looped route, which has aid stations at the start/finish line, has color-coded flags, cones, and arrows. Runners will view limestone gorges in the park National Natural Landmark 8 Hours of Power challenges runners to complete as many loops as possible within eight hours. Race shirts are available for purchase online.