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 a worldwide top-tier tennis tour for men organized by the Association of Tennis Professionals. 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 2007 ATP Tour was the global elite men's professional tennis circuit organised by the Association of Tennis Professionals (ATP) for the 2007 tennis season. The ATP Tour is the elite tour for professional tennis organized by the Association of Tennis Professionals. The ATP Tour includes the four Grand Slam tournaments, the Tennis Masters Cup, the ATP Masters Series, the International Series Gold and the International Series tournaments.
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. Carlos Alcaraz is the current men's singles world No. 1.
Gastão José Ministro Elias is a Portuguese professional tennis player, who competes on the ATP Tour. He became the fifth Portuguese tennis player to break into the top 100 of the Association of Tennis Professionals singles rankings. In October 2016, he reached a career-high singles ranking of world No. 57 to become the second-highest-ranked Portuguese player, after João Sousa.
Conor Niland is an Irish former professional tennis player. He was born in Birmingham, England, and grew up in Limerick, Ireland. He attended St. Nessan's National School in Mungret, County Limerick, before moving on to Crescent College Comprehensive in Dooradoyle, County Limerick. He was the highest ranked Irish tennis player during his career. He played for the Ireland Davis Cup team from 2000 to 2012. He officially announced his retirement from tennis on 12 April 2012 due to a recurring hip injury. In a statement Niland said: "I am today sadly announcing my retirement from professional tennis. I have been suffering from labral tears in both hip cartilages and this has resulted in pain and restricted movement for the past nine months."
The 2010 ATP Salzburg Indoors was a professional tennis tournament played on indoor hard courts. It was the second edition of the tournament which is part of the 2010 ATP Challenger Tour and the Tretorn SERIE+ series. It took place in Salzburg, Austria between 15 and 21 November 2010.
The 2011 ATP Salzburg Indoors was a professional tennis tournament played on hard courts. It was the third edition of the tournament which is part of the Tretorn SERIE+ of the 2011 ATP Challenger Tour. It took place in Salzburg, Austria between 14 and 20 November 2011.
The Open Era is the current era of professional tennis. It began in 1968 when the Grand Slam tournaments allowed professional players to compete with amateurs, ending the division that had persisted since the dawn of the sport in the 19th century. The first open tournament was the 1968 British Hard Court Championships held in April, followed by the inaugural open Grand Slam tournament, the 1968 French Open, a month later. Unless otherwise sourced, all records are based on data from the Association of Tennis Professionals (ATP), the International Tennis Federation (ITF), and the official websites of the four Grand Slam tournaments. All rankings-related records are based on ATP rankings, which began in 1973. The names of active players appear in boldface.
Nicolas Reissig is an Austrian tennis player. Reissig has a career high ATP singles ranking of 344, achieved on 15 July 2013. Reissig made his ATP main draw doubles debut at the 2014 MercedesCup partnering Robin Kern, losing in the first round to Mate Pavić and André Sá. Reissig has a total of 7 singles titles and 4 doubles titles on the futures circuit.
The 2017 ATP World Tour was the global elite men's professional tennis circuit organized by the Association of Tennis Professionals (ATP) for the 2017 tennis season. The 2017 ATP World Tour calendar comprised the Grand Slam tournaments, the ATP World Tour Masters 1000, the ATP Finals, the ATP World Tour 500 series, the ATP World Tour 250 series and the Davis Cup. Also included in the 2017 calendar are the Hopman Cup and the Next Gen ATP Finals, which do not distribute ranking points.
Markus Rackl is a former professional tennis player from Germany.
Federico Coria is an Argentine tennis player. He has a career-high ATP singles ranking of No. 49 achieved on 13 February 2023. He also has a career-high doubles ranking of No. 238, achieved on 22 November 2021. Coria has won one ATP Challenger doubles title at the 2016 Campeonato Internacional de Tênis de Campinas and two ATP Challenger singles titles at the 2019 Savannah Challenger and the 2021 Czech Open.
Carlos Alcaraz Garfia is a Spanish professional tennis player. He is ranked as the world No. 1 in men's singles by the Association of Tennis Professionals (ATP). Alcaraz has won twelve ATP Tour-level singles titles, including two major titles and four Masters 1000 titles. Following his win at the 2022 US Open, Alcaraz became the youngest man in history and the first teenager in the Open Era to top the singles rankings, at 19 years, 4 months, and 6 days old.
The 2021 ATP Salzburg Open was a professional tennis tournament played on outdoor clay courts. It was the first edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Anif (Salzburg), Austria between 5 and 11 July 2021.
The 2023 ATP Tour is the global elite men's professional tennis circuit organised by the Association of Tennis Professionals (ATP) for the 2023 tennis season. The 2023 ATP Tour calendar comprises the Grand Slam tournaments, supervised by the International Tennis Federation (ITF), the ATP Finals, the ATP Tour Masters 1000, the United Cup, the ATP 500 series and the ATP 250 series. Also included in the 2023 calendar are the Davis Cup, Next Gen ATP Finals, Laver Cup, and Hopman Cup, none of which distribute ranking points. 2023 marks the return of the ATP tournaments in China after strict COVID-19 protocols in the country.
The Salzburg Open is a professional tennis tournament played on clay courts. It is currently part of the Association of Tennis Professionals (ATP) Challenger Tour. It is held in Salzburg, Austria, with the first edition played in 2021.
The 2022 Salzburg Open was a professional tennis tournament played on outdoor clay courts. It was the second edition of the tournament which was part of the 2022 ATP Challenger Tour. It took place in Anif (Salzburg), Austria between 4 and 10 July 2022.
Benoît Paire 
Grega Žemlja 
Conor Niland 
Jerzy Janowicz 
Michael Berrer 
Jarkko Nieminen 
Martin Fischer 
Lovro Zovko 
Rameez Junaid 
Igor Zelenay 
Sonchat Ratiwatana