The US Open was the first Grand Slam to introduce the Mixed Doubles format in tennis. It was part of the inaugural edition of the US Open in 1887. Wimbledon followed and introduced Mixed Doubles only in 1913. Later, the Australian Open and the French Open introduced the format in 1922 and 1925 respectively.
Very few tournaments apart from the Grand Slams host mixed doubles events, the most notable among them being the Hopman Cup played annually in Australia and the Summer Olympic Games (1912-1920 and most recently from the London 2012 Games onwards).
Margaret Court Smith of Australia has not only won the most Singles Grand Slam titles across all eras but also the most Mixed Doubles Grand Slam titles across all eras with 21 titles. In 1963 and 1965, Court completed the Calendar Slam in Mixed Doubles with her partner - Ken Fletcher.
We focus our discussion on seven players with the most Mixed Doubles titles in the Open Era:
A member of the US Davis Cup Team in the 1960s and early 1970s, Marty Riessen was a versatile player. Though his game was more suited to Doubles, he enjoyed fairly good success in Singles too winning 18 Singles titles and attaining a career-high ranking of 8.
Riessen forged a successful partnership with Australian legend Margaret Court Smith and he won 6 of his 7 Grand Slam Mixed Doubles titles with her.
Marty Riessen also won 2 Grand Slam Doubles titles including the 1971 French Open with the legendary Arthur Ashe.