Simona Halep (Romanian pronunciation: [siˈmona haˈlep]; born 27 September 1991) is a Romanian professional tennis player. She has been ranked world No. 1 in singles twice between 2017 and 2019. In total, she has been No. 1 for 64 weeks, which ranks tenth in the history of the Women's Tennis Association (WTA) rankings. Halep was the year-end No. 1 in 2017 and 2018. She has finished each year ranked no lower than No. 4 since 2014 and has the longest active streak of being ranked in the top 10. She has won 19 WTA singles titles and has finished runner-up 17 times. Halep has won two Grand Slam singles titles: the 2018 French Open and the 2019 Wimbledon Championships.