The Carlyle Cup was a trophy contested annually by the Duke Blue Devils and the North Carolina Tar Heels. It was awarded to the school that had the most combined head-to-head wins against the other school in all of the shared varsity sports for that academic year. At the start of the 2010-11 season, the rivalry series was renamed the Battle of the Blues presented by Continental Tire. Since the 2010-11 season, there has not been a recipient of the trophy.