Doris Hart (June 20, 1925 – May 29, 2015) was an American tennis player from who was active in the 1940s and first half of the 1950s. She was ranked world No. 1 in 1951. She was the fourth player, and second woman, to win a Career Grand Slam in singles. She was the first of only three players (all women) to complete the career "Boxed Set" of Grand Slam titles, which is winning at least one title in singles, doubles, and mixed doubles at all four Grand Slam events. Only she and Margaret Court achieved this during the amateur era of the sport. Hart played collegiate tennis for the Miami Hurricanes at the University of Miami in Coral Gables, Florida. Tennis career Hart reached 67 Grand Slam finals and won 35 titles, tying with Louise Brough for sixth on the all-time list (behind Margaret Smith Court (64), Martina Navratilova (59), Billie Jean King (39), Serena Williams (39), and Margaret Osborne duPont (37)). Six of her titles were in women's singles, 14 in women's doubles, and 15 in mixed doubles. Hart is one of only three players, all women, to have a "boxed set" of Grand Slam titles — every possible title (singles, women's doubles, and mixed doubles) from all four Grand Slam tournaments. The others are Margaret Smith Court and Martina Navratilova. Hart was the first person to accomplish this feat. As a child, Hart suffered from osteomyelitis, which resulted in a permanently impaired right leg. She started playing tennis when she was 10 years old, greatly encouraged by her brother Bud. After losing seven Grand Slam finals from 1942 through 1946, Hart won her first Grand Slam title at the 1947 Wimbledon Championships in women's doubles. At that point, she was still a student at the University of Miami. Her first Grand Slam singles title came at the 1949 Australian National Championships, where she was the only non-Australian player in the draw. She also won singles titles at the 1950 and 1952 French International Championships, the 1951 Wimbledon Championships (routing doubles partner Shirley Fry in the final), and the 1954 and 1955 U.S. National Championships. The 1955 U.S. singles final was the last Grand Slam singles match of her career. Hart won the singles, women's doubles, and mixed doubles titles at the 1951 Wimbledon Championships, playing the finals of all three events on the same day (July 7,