The Rock 'n' Roll Marathon Series is an amazing co...

The Rock 'n' Roll Marathon Series is an amazing company that organizes some of the best running events in the world. I've participated in several of their races and I have always been impressed by the organization, atmosphere, and attention to detail. The courses are scenic and well-marked, the volunteers are friendly and supportive, and the medals and finisher's shirts are top-notch. I highly recommend their events to any avid runner!