Martina Navratilova's record for most career match wins in women's tennis won't be broken any time soon, but where does Serena Williams finish after the curtain came down on her career?
The Australian great won the French Open as a 19-year-old in 1971 and a few months later she added the Wimbledon title to her name. By the time she hung up a racket, she had won 86 singles titles, including seven Grand Slams.
She is the only mother to have won Wimbledon after Dorothea Lambert Chambers in 1914 as she won a second title at SW19 in 1980 following the birth of her daughter in 1977.
The Spaniard's professional career spanned from 1988 until 2006 and during that time she won 33 WTA Tour singles titles.
Her only Grand Slam title came at Wimbledon in 1994 when she beat Martina Navratilova in three sets while she finished runner-up at the 1998 Australian Open and 2000 French Open.
Former world No 1 Davenport won 79.5% of the 947 singles matches that she played on the WTA Tour while she earned $22,166,338 from prize money during her 17-year career.
Davenport won 55 singles titles, including the 1998 US Open, 1999 Wimbledon and 2000 Australian Open.
The Spanish great also sits at No 7 on the list for most matches played as she played 1055 singles matches during a career that yielded 39 titles. Interestingly, she managed to win 69 titles in doubles.
Her greatest achievements in Grand Slams were at Roland Garros as she won three French Open titles (1989, 1994, 1998) while she also won the US Open in 1994.
Having made her competitive tennis debut at the age of 14, Venus Williams is now the only active player left in the 10 at and who knows for much longer she will play as she is 42.
The former world No 1 has won 49 WTA Tour singles titles to date, including five Wimbledon trophies and two US Open titles, while she is second in the all-time career-prize money rankings with $42,312,453 .
The Great Britain legend's most famous title came at Wimbledon in 1977 and she was the last British tennis player to have won a Grand Slam singles tournament until Andy Murray won the US Open in 2012.
Wade also won the US Open in 1968 and the Australian Open in 1972 while she retired with 55 singles titles to her name.
The tennis icon edged past Wade last year and finished her career well short of the 900-win milestone, but finishes with an 84.8% win percentage having played 1,012 matches in her career.
The 23-time Grand Slam winner has won 73 singles titles, which puts her fifth in the overall rankings while she tops the list for career-prize money with $94,8m.
A former world No 1, 22 Grand Slam singles titles, the only player to win a Golden Slam, the only player to have won each Grand Slam at least four times. The records are endless with Graf.
She also spent a 377 weeks atop the WTA Rankings, won 107 singles titles (third in the all-time list) while her career winning percentage stands at 88.69%.
She was the first player, male or female, to win 1,000 career singles matches with the feat coming at the 1984 Australian Open while her winning percentage stands at an incredible 89.97%, which is the highest in the Open Era and second behind Margaret Court in the all-time rankings.
Evert spent 260 weeks top of the WTA Rankings, won 154 singles titles of which 18 were Grand Slam trophies, and two Career Grand Slams.
The great Martina Navratilova has several records that will be hard to beat. She has played the most matches (1661), won a combined 59 Grand Slams (18 singles, 41 women's doubles titles and 10 mixed doubles titles), has won a record nine Wimbledon singles titles and we could go on and on.
Navratilova, who spent a total of 332 weeks top of the WTA Rankings, has a winning percentage of 86%, which puts her third in the all-time list, while she is 15th in the career-prize money list with $21,626,089.