Margaret Court

Margaret Court's 24 Grand Slam singles titles remain the highest count in history, a feat unmatched by any player, including #2 Serena Williams, who holds 23. This record includes her calendar Grand Slam in 1970, achieved during a dominant run that spanned pre-Open Era and Open Era competition, culminating in a famous 6-4, 6-1, 6-2 victory over Billie Jean King in the 1970 Wimbledon final. While Court's titles were accumulated partly before full Open Era conditions, her 11 Australian Open titles alone are three more than the average of any other player's total Grand Slam wins. Her serve-and-volley style and powerful left-handed game were 20% more efficient in converting break points than her contemporaries, solidifying her legacy as one of the game's greatest.