Question: Who was born first, Kevin Curren or Martina Navratilova?

full_context: Document 1: Vitas Gerulaitis: Vytautas Kevin Gerulaitis (July 26, 1954 – September 17, 1994) was an American professional tennis player. In 1975, Gerulaitis won the men's doubles title at Wimbledon, partnering with Sandy Mayer. He won the men's singles title at one of the two Australian Open tournaments held in 1977 (Gerulaitis won the tournament that was held in December, while Roscoe Tanner won the earlier January tournament). Gerulaitis also won two Italian Open titles, in 1977 and 1979, and the WCT Finals in Dallas, in 1978.
Document 2: Martina Hingis: Martina Hingis (born 30 September 1980) is a Swiss professional tennis player, a former world No. 1 singles player and currently ranked world No. 2 in doubles by the WTA. She has spent a total of 209 weeks as the singles No. 1 and has won five Grand Slam singles titles, thirteen Grand Slam women's doubles titles, winning a calendar-year doubles Grand Slam in 1998, and seven Grand Slam mixed doubles titles; for a combined total of twenty-five major titles. In addition, she has won the season-ending WTA Championships two times in singles and three times in doubles, and an Olympic silver medal.
Document 3: Chris Evert: Christine Marie Evert (born December 21, 1954), known as Chris Evert Lloyd from 1979 to 1987, is a former World No. 1 professional tennis player from the United States. She won 18 Grand Slam singles championships and three doubles titles. She was the year-ending World No. 1 singles player in 1974, 1975, 1976, 1977, 1978, 1980, and 1981. Overall Evert won 157 singles championships and 32 doubles titles.
Document 4: Hana Mandlíková: Hana Mandlíková (born 19 February 1962) is a former professional tennis player from Czechoslovakia who later obtained Australian citizenship. During her career, she won four Grand Slam singles titles: the 1980 Australian Open, 1981 French Open, 1985 US Open, and the 1987 Australian Open. She was also the runner-up at four Grand Slam singles events, including the Wimbledon finals of 1981 and 1986, and won one Grand Slam women's doubles title, the 1989 US Open with Martina Navratilova.
Document 5: Ken Rosewall: Kenneth Robert Rosewall {'1': ", '2': ", '3': 'AM, MBE', '4': "} (born 2 November 1934) is a former world top-ranking amateur and professional tennis player from Australia. He won a record 23 tennis Majors including 8 Grand Slam singles titles and before the Open Era a record 15 Pro Slam titles and a record 35 Major finals overall. He won the Pro Grand Slam in 1963. Rosewall won 9 slams in doubles with a career double grand slam. He is considered to be one of the greatest tennis players of all time. He had a renowned backhand and enjoyed a long career at the highest levels from the early 1950s to the early 1970s. Rosewall was one of the two best male players for about nine years and was the World No. 1 player for a number of years in the early 1960s. He was ranked among the top 20 players, amateur or professional, every year from 1952 through 1977. Rosewall is the only player to have simultaneously held Pro Grand Slam titles on three different surfaces (1962–1963). At the 1971 Australian Open he became the first male player during the open era to win a Grand Slam tournament without dropping a set.
Document 6: Johan Kriek: Johan Kriek (born April 5, 1958) is a South African-American professional male tennis player and founder of the Global Water Foundation, a non-profit organization dedicated to delivering clean water to the world's neediest communities. Kriek won two Australian Opens and reached the semifinals at the French Open and US Open, as well as the quarterfinals of Wimbledon. He won 14 professional singles and 8 doubles titles, reaching a career-high singles ranking of World No. 7. Kriek's most memorable wins include victories over Andre Agassi, Jimmy Connors, John McEnroe, Guillermo Vilas, Stefan Edberg, Michael Chang, Vitas Gerulaitis and Björn Borg.
Document 7: Jennifer Capriati: Jennifer Maria Capriati (born March 29, 1976) is an American former professional tennis player. A member of the International Tennis Hall of Fame, she won three singles championships in Grand Slam tournaments and a gold medal at the 1992 Summer Olympics in Barcelona, reached the World No. 1 ranking, and is considered one of the greatest tennis players of all time.
Document 8: Kevin Curren: Kevin Melvyn Curren (born 2 March 1958) is a South African-American former professional tennis player. He played in two Grand Slam singles finals and won four Grand Slam doubles titles, reaching a career-high singles ranking of World No. 5.
Document 9: Jim Courier: James Spencer Courier Jr. (born August 17, 1970) is an American former World No. 1 professional tennis player. During his career, he won four Grand Slam singles titles, two at the French Open and two at the Australian Open. He holds the record for being the youngest man to have reached the finals of all four Grand Slam singles tournaments, at the age of 22 years and 11 months. He also won five Masters 1000 series titles. Until Novak Djokovic in 2016, Courier was the last man to win both the Australian and French Opens in the same calendar year.
Document 10: Evert–Mandlikova rivalry: The tennis players Chris Evert (United States) and Hana Mandlíková (Czechoslovakia/Australia) met 26 times during their careers. Evert leads their overall head-to-head series 19–7. In 1981 the rivalry was described as being the most "dramatic" in women's tennis.
Document 11: Martina Navratilova: Martina Navratilova (Czech: "Martina Navrátilová" ] ; born Martina Šubertová ] ; October 18, 1956) is a former Czechoslovak and later American tennis player and coach. In 2005, "Tennis" magazine selected her as the greatest female tennis player for the years 1965 through 2005 and she is considered one of the best, if not the best, female tennis players of all time.
Document 12: 1984 US Open – Women's Singles: Martina Navratilova was the defending champion, and she successfully defended her title, defeating last year's finalist Chris Evert in the final. This victory was Navratilova's sixth straight Major title, tying her with Margaret Court and Maureen Connolly for the most consecutive Grand Slam titles won. Navratilova became the first player to win Grand Slams on clay, grass and hard court on the same calendar year, after having won the French Open and Wimbledon.
Document 13: Ken Flach: Kenneth Eliot Flach (born May 24, 1963) is a former professional tennis player from the United States. A doubles specialist, he won 4 Grand Slam men's doubles titles (2 Wimbledon and 2 US Open), and 2 Grand Slam mixed doubles titles (1 Wimbledon and 1 French Open). He also won the men's doubles Gold Medal at the 1988 Olympic Games in Seoul, partnering Robert Seguso. Flach reached the World No. 1 doubles ranking in 1985.
Document 14: Kevin Ullyett: Kevin Ullyett (born 23 May 1972 in Salisbury, now Harare) is a former professional tennis player from Zimbabwe. His primary success on the tour was in men's doubles.
Document 15: 1985 Wimbledon Championships – Men's Singles: John McEnroe was the defending champion but lost in the quarterfinals to Kevin Curren. Curren also defeated Jimmy Connors in the semifinal and became the first player ever to defeat both Connors and McEnroe in the same Grand Slam tournament.
ground_truth: Martina Navratilova