Join Recreational Sports for the USC Workout 2-Week Preview August 25-September 7th. During the 2-Week Preview, you can participate in our USC Workout group exercise classes without needing to purchase the USC Workout Pass. To participate, students must register for the USC Workout class they wish to take on IMLeagues up to 48 hours in advance. Registration on the Event Calendar does not give you access to our classes; registration on IMLeagues is required.