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. 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. It was founded in 1976 when it replaced the ILTF Satellite Circuit as the second tier of tennis. 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 ITF Men's World Tennis Tour is a series of professional tennis tournaments held around the world that are organized by the International Tennis Federation. The tour represents the lowest rung of the men's professional tennis ladder. ITF tournaments are incorporated into the ATP rankings, enabling young professionals to progress on to the ATP Challenger Tour and ultimately the full ATP Tour. Nearly every professional male player has spent some time on the ITF Men's World Tennis Tour.
Daniel Dutra da Silva is a professional tennis player from Brazil who competes mostly on the ATP Challenger Tour.
The Hong Kong ATP Challenger is a tennis tournament held in Hong Kong since 2015. The event is part of the ATP Challenger Tour and is played on outdoor hard courts.
Max Jacob Schnur is an American inactive tennis player mostly playing on the ATP Challenger Tour, specializing in doubles. His highest ATP doubles ranking of World No. 87 was achieved on 12 September 2022.
Geoffrey Blancaneaux is a French professional tennis player who competes mainly on the ATP Challenger Tour. He has a career-high ATP singles ranking of World No. 134 achieved on 14 November 2022 and a doubles ranking of World No. 164 achieved on 18 July 2022.
Alexander Ritschard is a Swiss-American professional tennis player. He has a career-high ATP singles ranking of world No. 121, achieved on 23 September 2024 and a doubles ranking of No. 388, achieved on 4 April 2022. He is currently the No. 1 Swiss player.
André Göransson is a Swedish tennis player who specializes in doubles. He has a career-high ATP doubles ranking of world No. 55, achieved on 3 April 2023, and in singles a ranking of No. 773, achieved on 25 September 2017. He is the current No. 1 Swedish doubles player. Göransson has won two ATP Tour doubles titles as well as thirteen ATP Challenger titles and two Futures titles.
The Marbella Tennis Open is a professional tennis tournament played on clay courts. It is currently part of the Association of Tennis Professionals (ATP) Challenger Tour and WTA 125K series. The ATP event has been held annually in Marbella, Spain, from 2018 while the WTA edition started in 2022.
The Oracle Challenger Series – Houston is a professional tennis tournament played on hard courts. It is currently part of the ATP Challenger Tour and the Women's Tennis Association (WTA) 125K series. It is held annually in Houston, United States since 2018. The ATP Challenger Tour returned to Houston, Texas for the first time since 2001, with the inaugural Oracle Challenger Series Houston making its debut in November. Held on the campus of Rice University, at the new $9 million George R. Brown Tennis Complex. Houston is will become one of just two U.S. cities to host tournaments on both the ATP World Tour and ATP Challenger Tour, with the ATP World tour tournament being the U.S. Men's Clay Court Championships. The Oracle Challenger Series – Houston is the second stop for the Oracle Challenger Series calendar. The winner of the Oracle Challenger Series earns a wild card into Indian Wells Masters.
The Emilia-Romagna Open is a professional tennis tournament played on clay courts. It is currently a WTA 125 event on the WTA Tour for women and part of the ATP Challenger Tour for men. It is held annually in Parma, Italy since 2021. Since 2024 it is held in Sassuolo, Modena for men.
Leandro Riedi is a Swiss professional tennis player. He has a career-high ATP singles ranking of world No. 117 achieved on 5 August 2024. He also has a career-high ATP doubles ranking of No. 211 achieved on 6 February 2023. He is currently the No. 2 Swiss player.
August Holmgren is a Danish professional tennis player. He has a career high ATP singles ranking of world No. 167 achieved on 5 August 2024 and a doubles ranking of No. 296 achieved on 17 July 2023. He is currently the No. 2 Danish player.
The ATP Challenger Tour in 2022 was the secondary professional tennis circuit organized by the ATP. The 2022 ATP Challenger Tour calendar comprised 184 tournaments with prize money ranging from $37,520 up to $159,360. It was the 45th edition of Challenger tournaments cycle and 14th under the name of Challenger Tour.
Oleksii Krutykh is a Ukrainian tennis player. He has a career high ATP singles ranking of World No. 160 achieved on 27 February 2023. He also has a career high doubles ranking of World No. 275 achieved on 5 December 2022. He has won two ATP Challenger singles titles and two doubles titles. He is currently the No. 8 Ukrainian tennis player.
Santiago Rodríguez Taverna is an Argentine professional tennis player. He has a career high ATP singles ranking of world No. 157 achieved on 29 August 2022. He also has a career high doubles ranking of No. 160 achieved on 20 November 2022.
The 2022 LTP Men's Open was a professional tennis tournament played on hardcourts in Charleston, United States. It was the first edition of the tournament and was organized as an event on the 2022 ATP Challenger Tour. It was scheduled to be played between September 26 and October 2, 2022, but the tournament was canceled after completion of play on September 28 due to the forecasted impacts of Hurricane Ian on South Carolina. All players received the ranking points and prize money they would have earned for the rounds they reached.
Jelle Sels is a Dutch tennis player. Sels competes mainly in the Challenger tour circuit. He has a career high ATP singles ranking of world No. 127 achieved on 28 November 2022. He also has a career high doubles ranking of world No. 201 achieved on 20 June 2022.
Edas Butvilas 
Nishesh Basavareddy 
Abdullah Shelbayh 
Luke Saville 
Luke Johnson 
Skander Mansouri 
