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.
João Olavo Soares de Souza is a Brazilian former professional tennis player. Before receiving a lifetime ban for match-fixing, Souza competed mainly on the ATP Challenger Tour, both in singles and doubles. He reached his highest ATP singles ranking, No. 69, on April 6, 2015, and his highest ATP doubles ranking, No. 70, on January 7, 2013. Souza was coached by former Brazilian player Ricardo Acioly. Souza is also known as "Feijão".
Kamil Majchrzak is a Polish professional tennis player. He has a career high ATP singles ranking of World No. 75 achieved on 28 February 2022 and a career high ATP doubles ranking of World No. 241 achieved on 8 August 2016.
Andrey Andreyevich Rublev is a Russian professional tennis player. He has been ranked as high as world No. 5 in singles by the ATP, which he first achieved in September 2021. Rublev has won 15 ATP Tour singles titles, including a Masters 1000 title at the 2023 Monte-Carlo Masters. He has reached the quarterfinals of all four majors, but is the only male player of the Open Era to have done so the most times without progressing to the semifinals. Rublev has a career-high doubles ranking of No. 44, achieved on 6 November 2023. He has won four doubles titles, including an Olympic gold medal in the mixed doubles at the 2020 Summer Olympics with Anastasia Pavlyuchenkova and a Masters 1000 title at the 2023 Madrid Open with Karen Khachanov.
Benjamin Bonzi is a French professional tennis player. Bonzi has a career-high ATP singles ranking of world No. 42 achieved on 6 February 2023. He also has a career high doubles ranking of world No. 121 achieved on 19 September 2022.
Federico Gaio is an Italian professional tennis player. He competes mainly on the ATP Challenger Tour and on the ITF circuit. He has won four Challenger titles and nine ITF futures singles titles. He reached his career high ATP singles ranking of World No. 124 in February 2020. In doubles, he has won three Challenger and four ITF futures doubles titles. He reached a career high in doubles of World No. 163 on 2 November 2020 after his maiden ATP doubles final at the 2020 Rio Open partnering Salvatore Caruso.
Félix Auger-Aliassime is a Canadian professional tennis player. He has a career-high singles ranking of No. 6, which he achieved on November 7, 2022, making him the second-highest-ranked Canadian man in ATP rankings history and the fourth-highest-ranked Canadian player in history. He has a doubles ranking of No. 60, attained on November 1, 2021. He has won five singles titles and one doubles title on the ATP Tour, and was selected as the 2022 Canadian Press athlete of the year.
Max Purcell is an Australian professional tennis player.
Federico Coria is an Argentine professional 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 six ATP Challenger singles titles and one doubles title.
Jurij Rodionov is an Austrian professional tennis player. He has a career high ATP singles ranking of World No. 89 achieved on 5 February 2024. He also has a career high doubles ranking of World No. 268 achieved on 15 July 2019. He is currently the No. 2 Austrian player.
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.
Jannik Sinner is an Italian professional tennis player. He has been ranked as high as world No. 4 by the Association of Tennis Professionals (ATP), achieved on 2 October 2023, making him the highest ranked Italian male player in history. Sinner is a major champion, having won the 2024 Australian Open. He has won a further ten ATP Tour singles titles, including a Masters 1000 title at the 2023 Canadian Open. Sinner also has a career-high ranking of world No. 124 in doubles, achieved on 27 September 2021, and has won one ATP Tour title in doubles.
Holger Vitus Nødskov Rune is a Danish professional tennis player. He has been ranked as high as world No. 4 in men's singles by the Association of Tennis Professionals (ATP), making him the highest-ranked male Danish player in the history of the ATP rankings. Rune has won four ATP Tour singles titles, including a Masters 1000 title at the 2022 Paris Masters, and produced his best Grand Slam performance at the 2022 French Open by reaching the quarterfinals in his main draw debut at the tournament.
The ATP Challenger Tour in 2020 was the secondary professional tennis circuit organized by the ATP. The 2020 ATP Challenger Tour calendar comprised 57 tournaments with prize money ranging from $35,000 up to $162,480. It was the 43rd edition of challenger tournaments cycle and 12th under the name of Challenger Tour.
The 2020 BNP Paribas Open was a professional men and women's tennis tournament to be played in Indian Wells, California. The event was initially scheduled to take place on March 11–22, 2020, but was canceled due to the COVID-19 pandemic.
The 2020 Potchefstroom Open was a professional tennis tournament played on hard courts. It was the first edition of the tournament which was part of the 2020 ATP Challenger Tour. It took place in Potchefstroom, South Africa between 10 and 15 March 2020. The tournament was canceled prior to completion due to the coronavirus pandemic.
The 2021 Potchefstroom Open was a professional tennis tournament played on hard courts. It was the second edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Potchefstroom, South Africa between 8 and 14 February 2021.
The 2021 Potchefstroom Open II was a professional tennis tournament played on hard courts. It was the third edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Potchefstroom, South Africa between 15 and 21 February 2021.
2020 Potchefstroom Open 
