Career
Known for her volleying ability and strong serves, she captured singles titles at the French Championships in 1960 and the United States. Championships in 1960 and 1961. Her last doubles title, at the age of 33 at the 1969 United States Open, came six years after she had retired from serious competition to become a tennis instructor. She also played the United States Open singles tournament in 1969, losing in the second round to Françoise Dürr 6–3, 6–3.
According to Lance Tingay of the Daily Telegraph and the Daily Mail, Hard was ranked among the top ten in the world from 1957 through 1963, reaching a career high of number 2 in those rankings in 1957, 1960, and 1961.
Hard was included in the year-end top ten rankings issued by the United States Lawn Tennis Association from 1954 through 1963. She was the top-ranked United States. player from 1960 through 1963.
Hard was enshrined in the International Tennis Hall of Fame in 1973. She has worked for the University of Southern California since 1981.
Singles: 7 (3 titles, 4 runners-up)
Doubles: 18 (13 titles, 5 runners-up)
A = did not participate in the tournament.