For the 1990 Tokyo Indoor – Doubles Kevin Curren and David Pate were the defending champions, but Curren did not participate this year.
 Pate partnered Scott Davis, losing in the final.
Kevin Curren and Steve Denton were the defending champions, but Curren did not participate this year.
 Denton partnered Victor Amaya, losing in the second round.
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.
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.
Jeremy Bates and Kevin Curren were the defending champions but they competed with different partners that year, Bates with Nick Brown and Curren with Neil Broad.
Kevin Curren and Guy Forget were the defending champions but they competed with different partners that year, Curren with Brad Pearce and Forget with Yannick Noah.
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.
Judy Hill Nelson is an American author best known for her 1983–1991 romance (while married) with and eventual palimony suit against women's tennis star Martina Navratilova.
 After their break-up, Nelson was the author of the books "Love Match: Nelson vs. Navratilova", chronicling her relationship with the tennis star, and "Choices: My Journey After Leaving My Husband for Martina and a Lesbian Life", chronicling her coming out as a lesbian in the mid-1980s.
 She is the mother of two sons.
Unmatched is a documentary about tennis players Martina Navratilova and Chris Evert, their decades-long on-court rivalry and lifelong friendship, created for ESPN's "30 for 30" documentary series.
 Evert and Navratilova met in 80 matches, 60 finals and 14 grand slam finals with Navratilova sporting a 43-37 advantage.
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.

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