Annual Number One Players 1914 - 2001

Unofficial world rankings for men and women determined by the London Daily Telegraph from 1914-72. Since then, official world rankings computed by men's and women's tours. Rankings included only amateur players from 1914 until the arrival of open (professional) tennis in 1968. No rankings were released during World Wars I and II.

Multiple winners: Bill Tilden and Pete Sampras (6); Jimmy Connors (5); Henri Cochet, Rod Laver, Ivan Lendl and John McEnroe (4); John Newcombe and Fred Perry (3); Bjorn Borg, Don Budge, Ashley Cooper, Stefan Edberg, Roy Emerson, Neale Fraser, Jack Kramer, Rene Lacoste, Ilie Nastase, Frank Sedgman and Tony Trabert (2).

Multiple winners: Helen Wills Moody (9); Steffi Graf (8); Margaret Smith Court and Martina Navratilova (7); Chris Evert Lloyd (5); Margaret Osborne duPont and Billie Jean King (4); Maureen Connolly, Martina Hingis, Monica Seles (3); Maria Bueno, Althea Gibson, Suzanne Lenglen, Lindsay Davenport (2).