Meet the top 10 players in women's tennis with the most weeks at No.1!
Steffi Graf - 377 weeks
Martina Navratilova - 332 weeks
Serena Williams - 319 weeks
Chris Evert - 260 weeks
Martina Hingis - 209 weeks
Monica Seles - 178 weeks
Iga Swiatek - 125 weeks
Ash Barty - 121 weeks
Justine Henin - 117 weeks
Aryna Sabalenka - 99 weeks