The Association of Tennis Professionals (ATP) is the governing body of the men's professional tennis circuits – the ATP Tour, the ATP Challenger Tour and the ATP Champions Tour. It was formed in September 1972 by Donald Dell, Jack Kramer, and Cliff Drysdale to protect the interests of professional tennis players, and Drysdale became the first president. Since 1990 the association has organized the ATP Tour, the worldwide tennis tour for men and linked the title of the tour with the organization's name. It is the governing body of men's professional tennis. In 1990 the organization was called the ATP Tour, which was renamed in 2001 as just ATP and the tour being called ATP Tour. In 2009 the name of the tour was changed again and was known as the ATP World Tour, but changed again to the ATP Tour by 2019. It is an evolution of the tour competitions previously known as Grand Prix tennis tournaments and World Championship Tennis (WCT). The ATP's global headquarters are in London. ATP Americas is based in Ponte Vedra Beach, Florida; ATP Europe is headquartered in Monaco; and ATP International, which covers Africa, Asia and Australasia, is based in Sydney, Australia.
The ATP Tour is the sole worldwide top-tier tennis tour for men organized by the Association of Tennis Professionals founded in 1990 that replaced the earlier dual Grand Prix Circuit and WCT Circuit's The second-tier tour is the ATP Challenger Tour and the third-tier is the ITF Men's World Tennis Tour. The equivalent women's organisation is the WTA Tour.
The ATP Challenger Tour, known until the end of 2008 as the ATP Challenger Series, is a series of international men's professional tennis tournaments. The Challenger Tour events are the second-highest tier of tennis competition, behind the ATP Tour. The ITF World Tennis Tour tournaments are on the entry-level of international professional tennis competition. The ATP Challenger Tour is administered by the Association of Tennis Professionals. Players who succeed on the ATP Challenger Tour earn sufficient ranking points to become eligible for main draw or qualifying draw entry at ATP Tour tournaments. Players on the Challenger Tour are usually young players looking to advance their careers, those who fail to qualify for ATP events, or former ATP players looking to get back into the big tour.
The Pepperstone ATP rankings are the merit-based method used by the Association of Tennis Professionals (ATP) for determining the qualification for entry as well as the seeding of players in all singles and doubles tournaments. The first rankings for singles were published on 23 August 1973 while the doubles players were ranked for the first time on 1 March 1976. Ranking points are awarded according to the stage of tournament reached, and the prestige of the tournament, with the four Grand Slam tournaments awarding the most points. The rankings are updated every Monday, and points are dropped 52 weeks after being awarded. Novak Djokovic is the current men's singles world No. 1.
The 2010 BSI Challenger Lugano was a professional tennis tournament played on outdoor red clay courts. It was part of the Tretorn SERIE+ of the 2010 ATP Challenger Tour. It took place in Lugano, Switzerland between 7 and 13 June 2010.
The 2011 ATP World Tour was the elite men's professional tennis circuit organized by the Association of Tennis Professionals (ATP) for the 2011 season. It was the 42nd edition of the tour and the calendar comprised the Grand Slam tournaments, supervised by the International Tennis Federation (ITF), the ATP World Tour Masters 1000, the ATP World Tour 500 series, the ATP World Tour 250 series, the ATP World Team Championship, the Davis Cup, and the ATP World Tour Finals. Also included in the 2011 calendar is the Hopman Cup, which does not distribute ranking points, and is organized by the ITF.
The ATP Challenger Tour was the secondary professional tennis circuit organized by the Association of Tennis Professionals (ATP). The 2011 ATP Challenger Tour calendar comprised 15 top tier Tretorn SERIE+ tournaments, and approximately 150 regular series tournaments, with prize money ranging from $35,000 up to $150,000.
The ATP Challenger Tour Finals was a tennis tournament played between 2011 and 2015 at the end of season, involving the top seven players in that year's ATP Challenger Tour, plus an invited player from the tournament's host country.
The 2011 ATP Challenger Tour Finals was a tennis tournament played at the Ginásio do Ibirapuera in São Paulo, Brazil, between November 16 and November 20, 2011. It was the first edition of the event. The tournament was run by the Association of Tennis Professionals (ATP) and was part of the 2011 ATP Challenger Tour. The event took place on indoor hard courts. It served as the season ending championships for players on the ATP Challenger Tour. The seven best players of the season and a wild card awardee qualified for the event and were split into two groups of four. During this stage, players competed in a round robin format. The two players with the best results in each group progressed to the semifinals where the winners of a group faced the runners-up of the other group. This stage, however, was a knock out stage.
The ATP Challenger Tour was the secondary professional tennis circuit organized by the ATP. The 2012 ATP Challenger Tour calendar comprised 15 top tier Tretorn SERIE+ tournaments, and a total of 148 tournaments, with prize money ranging from $35,000 up to $150,000.
The 2012 ATP Challenger Tour Finals was a tennis tournament played at the Ginásio do Ibirapuera in São Paulo, Brazil, between November 27 and December 1, 2012. It was the second edition of the event. It was run by the Association of Tennis Professionals (ATP) and was part of the 2012 ATP Challenger Tour. The event took place on indoor hard courts. It served as the season ending championships for players on the ATP Challenger Tour. The seven best players of the season and a wild card awardee qualified for the event and were split into two groups of four. During this stage, players competed in a round robin format. The two players with the best results in each group progressed to the semifinals where the winners of a group faced the runners-up of the other group. This stage, however, was a knock out stage.
The 2013 ATP Challenger Tour Finals is a tennis tournament played at the Sociedade Harmonia de Tênis in São Paulo, Brazil, between 13 and 17 November 2013. It will be the third edition of the event.
Otto Virtanen is a Finnish professional tennis player.
Leandro Riedi is a Swiss professional tennis player. He has a career-high ATP singles ranking of world no. 126 achieved on 20 March 2023. He also has a career-high ATP doubles ranking of world no. 211 achieved on 6 February 2023.
Luca Nardi is an Italian professional tennis player.
Vitaliy Sachko is a Ukrainian tennis player. He has a career-high singles ranking of World No. 156 achieved on 31 July 2023 and also reached as high as No. 149 in doubles on 2 May 2022. He is currently the No. 1 Ukrainian tennis player.
The 2021 Challenger Città di Lugano was a professional tennis tournament played on indoor hard courts. It was the 1st edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Lugano, Switzerland between 22 and 28 March 2021.
The 2022 Challenger Città di Lugano was a professional tennis tournament played on indoor hard courts. It was the 2nd edition of the tournament which was part of the 2022 ATP Challenger Tour. It took place in Lugano, Switzerland between 28 March and 3 April 2022.
The Challenger Città di Lugano, also known as Challenger BancaStato Città di Lugano for sponsorship reasons, is a professional tennis tournament played on indoor hard courts. It is currently part of the Association of Tennis Professionals (ATP) Challenger Tour. It is held annually in Lugano, Switzerland. It is organized by Riccardo Margaroli.
The 2023 Challenger Città di Lugano was a professional tennis tournament played on indoor hard courts. It was the 3rd edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Lugano, Switzerland between 6 and 12 March 2023.
