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Home > Association of Tennis Professionals

 
The Association of Tennis Professionals (ATP) was formed in 1972 to protect the interests of male professional Tennis players. (Female players formed the Women's Tennis Association the year after.) In 1990, the association became the organizer of the principal worldwide tennis tour, thereafter known as the ATP Tour .

The organization releases a weekly ranking of the players's performance in the tour. This is a list of players who have achieved the number one position in singles since the ranking's inception in 1973:


# Player Country Date Reached Age Weeks
1 Ilie Nastase Romania 23 August 1973 27y 1m 40
2 John Newcombe Australia 3 June 1974 30y 11d 8
3 Jimmy Connors United States 29 July 1974 21y 11m 268
4 Bjorn Borg SwedenThe Kingdom of Sweden Konungariket Sverige in Swedish) is a Nordic country in Scandinavia, in Northern Europe. It is bordered by Norway on the west, Finland on the northeast, the Skagerrak and the Kattegat on the southwest, and the Baltic Sea and the Gulf 23 August 1977For the album by Ash, see 1977 (album). Events January 1 First woman Episcopal priest ordained January 6 EMI sacks the Sex Pistols January 18 Scientists identify a previously unknown bacterium as the cause of the mysterious " legionnaire's disease" Januar 21y 2m 109
5 John McEnroeJohn McEnroe (born February 16, 1959 in Wiesbaden, Germany) was a top ranked professional tennis player and was No. 1 player in the world four times between 1981 and 1984. He was famous for his epic matches against rivals Bjorn Borg, Jimmy Connors and Iva United States 3 March 1980 21y 15d 170
6 Ivan Lendl Czechoslovakia 28 February 1983 22y 11m 270
7 Mats Wilander Sweden 12 September 1988 24y 1m 20
8 Stefan Edberg Sweden 13 August 1990 24y 9m 72
9 Boris Becker Germany 28 January 1991 23y 2m 12
10 Jim Courier United States 10 February 1992 21y 5m 58
11 Pete Sampras United States 12 April 1993 21y 8m 286
12 Andre Agassi United States 10 April 1995 24y 11m 88
13 Thomas Muster Austria 12 February 1996 28y 4m 6
14 Marcelo Ríos Chile 30 March 1998 22y 3m 6
15 Carlos Moyà Spain 15 March 1999 22y 6m 2
16 Yevgeny Kafelnikov Russia 3 May 1999 25y 2m 6
17 Patrick Rafter Australia 26 July 1999 26y 8m 1
18 Marat Safin Russia 20 November 2000 20y 10m 9
19 Gustavo Kuerten Brazil 4 December 2000 24y 2m 43
20 Lleyton Hewitt Australia 19 November 2001 20y 9m 76
21 Juan Carlos Ferrero Spain 8 September 2003 23y 7m 7
22 Andy Roddick United States 3 November 2003 21y 2m 13
23 Roger Federer Switzerland 2 February 2004 22y 6m present




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