CMS is a non-profit organization based in Worcester, Massachusetts dedicated to the sport of long-distance running, including recreational and fitness jogging, road racing, cross-country, trail running and multisport activities. Our club is the region's largest running organization dedicated to promoting and supporting runners of all abilities in central New England. Whether you are running your first 5K or training for a Boston Marathon qualifier, we can help you achieve your goals! View our member benefits. Come join us. .