Which tennis player won 24 Grand Slam women's singles titles, an all-time record?

The tennis player who won a record 24 Grand Slam women’s singles titles is Margaret Court.

Court, an Australian player who competed from the 1960s into the 1970s, won 24 major singles championships between 1960 and 1973. That total remains the all-time record in women’s singles, ahead of Serena Williams’s 23 and Steffi Graf’s 22. Court also holds the record for the most Grand Slam titles overall, with 64 across singles, women’s doubles and mixed doubles.

Her most remarkable season came in 1970, when she won all four major singles tournaments: the Australian, French, Wimbledon and US championships. She was only the second woman to complete a calendar-year Grand Slam in singles, following Maureen Connolly in 1953 and preceding Graf in 1988.

Court’s record can cause confusion because her career crossed the amateur and Open eras, and some historical lists use “major” or “Grand Slam” totals differently. The standard women’s singles record counts her 24 recognized Grand Slam tournament titles. She also completed a career boxed set by winning every singles, doubles and mixed-doubles title at all four majors.