Oldest World Number One Players
n Serena Williams (US), 31 years, 4 months, 24 days.
n Chris Evert (US), 30 years, 11 months, 3 days (November 1985)
n Martina Navratilova (US) 30 years, 9 months, 29 days (August 1987)
n Lindsay Davenport (US) 29 years, 7 months, 8 days (January 2006)
n Serena Williams 29 years, 0 months, 14 days (October 2010)
n Steffi Graf (Germany) 27 years, 9 months, 16 days (March 1997)
