number of grand slam titles for serena williams
Serena Williams Williams holds the most Grand Slam titles in singles, doubles, and mixed doubles combined amongst active players. Her record of 39 Grand Slam titles puts her third on the all-time list and second in the open era: 23 in singles, 14 in women's doubles, and 2 in mixed doubles. She is the most recent female player to have held all four Grand Slam singles titles simultaneously (2002–03 and 2014–15) and the third player to achieve this record twice after Rod Laver and Steffi Graf. She is also, together with her sister Venus, the most recent player to have held all four Grand Slam women's doubles titles simultaneously (2009–10).