Martina Navratilova won her last major title in 2006, adding the mixed doubles crown at the 2006 US Open to her resume just a few weeks before her 50th birthday, 32 years after her first Grand Slam title in 1974.

Martina Navratilova (born Martina Šubertová October 18, 1956) is a Czechoslovak-born American former professional tennis player and coach. In 2005, Tennis magazine selected her as the greatest female tennis player for the years 1975 through 2005 and she is considered one of the best female tennis players of all time.

Navratilova was world No. 1 for a total of 332 weeks in singles, and a record 237 weeks in doubles, making her the only player in history to have held the top spot in both singles and doubles for over 200 weeks. She was year-end singles No. 1 seven times, including a record of five consecutive years, as well as year-end doubles No. 1 five times, including three consecutive years during which she held the ranking for the entire year.

She won 18 Grand Slam singles titles, 31 major women's doubles titles (an all-time record), and 10 major mixed doubles titles, combined marking the open-era record for the most Grand Slam titles won by one player, male or female.

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