The Marathon Project has announced a major schedule change for this year's event. The Amateurs and Professionals will now compete together in a 400-person race on Saturday, December 12. The move is designed to amplify the atmosphere and increase the intensity with more athletes, fans, and energy on the flat, fast, loop course in Chandler, AZ. According to race organizers, "The overwhelming feedback we received from last year was that the participants loved being treated like pros. Now they'll get to race with the pros as well. It's a logical next step for us." Press Release here