Ozark Foothills Endurance Runs – Hosted each spring in Greensfelder County Park in Wildwood, Mo., this race offers 100 Mile, 100K, 50 Mile, 50K, Night-50K, Marathon and 25K distance options and is a looped course that utilizes some of the region’s top-rated trails. Come run the scenic and technical terrain laying at the foothills of the gently rolling Ozark Mountain range. More than 90 percent single-track. We are proud to be a USATF Regional Association Championship race!