Hughes was a member of the U.S. Olympic water polo team that finished fourth in the
1952 Olympic tournament in Helsinki, Finland, just out of medal contention. He played in all nine matches for the U.S. team. The American Water Polo team at the 1952 Olympics was coached by Hughes' former High School and Junior College Coach Urho Saari. Benefitting from his earlier training in both water polo and swimming at USC, while at the 1956 Olympics, he became the first American athlete since Johnny Weissmuller in 1924 to compete in two different Olympic sports in one year. As a swimmer, in 1956, he broke the American world record in the 100-meter breaststroke with a 1:11.2. Hughes played the two-meter position also known as Center Forward at the Olympics, and in collegiate competition. His outstanding play at the position made it far better known to the public, as the Olympics garnered a large audience and wide press coverage. The two meter position is played on offense and is also known as the
Hole set or hole, which is usually in the area of the two meter (2M) marker in the center of the opposing team's goal, making it an excellent spot for scoring. Hughes's height may have been used to its best advantage in this position as he was harder to block and could shoot and receive passes above the heads' of opponents. == Later life ==