This event has been canceled due to weather. "Tough Mudder is an 8KM & 16KM mud and obstacle course designed to test your physical strength, stamina, and mental grit." It's not a race but a team-oriented challenge. Catch the video on their Shanghai page to get an idea of the type of obstacles you'll face. Looks like you'll need to be fairly fit to get through them. Tickets range from 418-818rmb depending on the length of the race and merchandise you get with the ticket. Start times vary throughout the day. Happens at 628 Qifan Lu, near Changyang Bei Lu, New Pudong District.