The Hawk-Eye technology, which tracks and predicts the path of a ball in flight using eight cameras placed around the edge of the playing field, has revolutionized the officiating of sports such as cricket and tennis. Operating at 500 frames per second, the system is accurate to within 3mm and has helped officials to make more informed decisions as to, for example, whether a ball has crossed a particular line. First developed by 26-year-old British mathematician Paul Dawkins in 1999, Hawk-Eye made its broadcast debut in 2001 during a cricket match between England and Pakistan at Lord’s cricket ground in London, UK. The following year, the system was used in the BBC’s coverage of the Davis Cup tennis tournament.