Martina Navratilova

Martina Navratilova won 18 Grand Slam singles titles and an astonishing 59 Grand Slam titles across singles, doubles, and mixed doubles. She held the world No. 1 ranking for 332 weeks and dominated women's tennis throughout the 1980s with her serve-and-volley style and supreme athleticism. Navratilova won 9 Wimbledon singles titles, a record she shares with Steffi Graf.