Catherine Lacoste

Playing in just her third professional golf tournament, she was the first European and only the second non-U.S.-citizen to win an LPGA major after Fay Crocker of Uruguay (whose father was American), and she remained the only French woman to have done so until Patricia Meunier-Lebouc won the 2003 Kraft Nabisco Championship. Lacoste was the youngest women ever and she remains the only amateur ever to win the U.S. Women's Open.

Until 1978, Lacoste competed under the name Catherine Lacoste de Prado. After divorcing from her first husband, she married Angel Piñero, a classical guitar player, in 2000. Besides living in Saint-Jean-de-Luz, the two of them have a home in Madrid, Spain.

The Chantaco Golf Club has always been managed by a member of the Lacoste family. In 1974, Lacoste succeeded her mother as president, with assistance of her brother François. In 2009, she was replaced by Camille Lacoste, the niece of her parents, until 2013, when Camille was replaced by Lacoste's daughter Veronique Smondack. Lacoste was awarded Honorary President of the club.

The following years, Lacoste continued to play for her country's team at the Espirito Santo Trophy, where she finished second individually in 1970 and in 1976, and the European Ladies' Team Championship, being part of the winning team again in 1975. After her competitive career, she served as a non-playing captain of the French women's senior amateur team.

In 1970, Lacoste married Jaime Prado y Colón de Carvajal and the couple had four children. Her youngest daughter Veronique played collegiately at Wake Forest University, North Carolina, in 1998. Her second oldest daughter Caroline Devaux, also took up the game.

In 1969, Lacoste won the two most important amateur tournaments in the world, the U.S. Women's Amateur and the British Ladies Amateur, becoming the third women in golfing history to achieve that feat in the same year. Only one other player has done that since. Lacoste and her mother are the only mother and daughter to have both won the British Ladies Amateur. This year Lacoste became the only women to have held the open amateur titles of United States, Great Britain, France and Spain at the same time. The same year, Lacoste made her first appearance at the European Ladies' Team Championship and led the French team to victory.

Trying to defend her U.S. Open title in 1968, she finished tied 13th and never again entered the U.S. Women's Open. Lacoste won the 1968 Women's Western Amateur, one of the most prestigious amateur tournaments in the United States. At the 1968 Espirito Santo Trophy at Victoria Golf Club, Melbourne, Australia, Lacoste was again the individual winner and the French team bronze-medalists.

Lacoste decided to skip the 1967 European Ladies' Team Championship to travel to the 1967 U.S. Women's Open, to be played June 29 to July 2 at the Cascades Course of The Homestead, in Hot Springs, Virginia. This time Lacoste traveled by air and alone. On Tuesday of the tournament week, Lacoste celebrated her 22nd birthday. Going into the last round, Lacoste held a 5-stroke lead. It stretched to seven strokes before she bogeyed five straight holes in bad weather on the back nine of the final round, but she secured the victory with a birdie on the par-4 17th hole by hitting a 2-wood over trees to cut the corner of a dogleg, which her competitors were not able to do, to finally win by two strokes. As an amateur, she received no prize money and the first prize of $5,000 was added to the second prize and shared by the tied runners-up Susie Maxwell and Beth Stone. Lacoste's victory came on the same day as her famous father's birthday.

At the 1966 Espirito Santo Trophy at Mexico City GC, Mexico, the French team finished bronze-medalists and Lacoste lone third individually.

The year after, Lacoste was invited to the 1965 U.S. Women's Open at Atlantic City Country Club in New Jersey. She travelled over the Atlantic by boat with her parents and finished 14th.

She was part of the Continent of Europe team at the 1965 Vagliano Trophy, winning for the first time over the Great Britain and Ireland team. Lacoste came to be part of the European team repeating that victory in 1967 and 1969, to take three in a row.

In 1964, at age 19, Lacoste was selected to the French three-women team for the first Espirito Santo Trophy, the inaugural world team championship of amateur golf, at Golf de Saint Germain, 20 kilometers west of Paris, France. The French team of Lacoste, Brigitte Varangot and Claudine Cros, under the captaincy of Lally de Saint Sauveur, won the championship and Lacoste finished tied first individually.

Catherine Lacoste (born 27 June 1945) is a French amateur golfer and the only player who has won the U.S. Women's Open as an amateur.

She has been a member of the board of Lacoste, the major fashion company, founded in 1933 by her father, who invented the crocodile trademark. The management of the company was transferred in 1963 from her father to her brother Bernard Lacoste (1931–2006). The family sold the company and the brand in November 2012 to Swiss family-held group Maus Frères.

She was born and grew up in Paris, France, with her parents, René Lacoste and Simone de la Chaume and three older brothers. Her family spent many holidays in the coast resort area of Saint-Jean-de-Luz, in France close to the Spanish border, near the Golf de Chantaco. The club was founded by Lacoste's grandfather René Thion de la Chaume in 1928, as a celebration of the British Ladies Amateur triumph a year earlier by Lacoste's mother.

Lacoste is the daughter of French tennis player René Lacoste (1904–1996), winner of seven Grand Slam singles titles, and his wife Simone de la Chaume (1908–2001), in 1927, first French winner of the British Ladies Amateur. They married in 1930.