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.
André Rezende Sá is a retired Brazilian tennis player.
Michael Craig Russell is a retired American professional tennis player, who is now the tennis coach of Taylor Fritz. He reached a career-high singles ranking of World No. 60 in August 2007. His 23 United States Tennis Association (USTA) Pro Circuit singles titles were the all-time record, as of November 2013. That month he became the third-highest-ranked American in the world.
The 1994 AT&T Challenge was an ATP men's tennis tournament held in Atlanta, Georgia, United States that was part of the World Series of the 1994 ATP Tour. It was the tenth edition of the tournament and was held from April 25 through May 2, 1994. First-seeded Michael Chang won the singles title.
Michael Robert Hill is a former tennis player from Australia who turned professional in 1997 and retired in 2005. He was primarily a doubles specialist, achieving a career-high doubles ranking of World Number 18, reached on 30 July 2001.
The Almaty Challenger 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 annually in Almaty, Kazakhstan since 2017.
Dennis Novikov is an American professional tennis player of Russian descent.
Michael Mmoh is an American tennis player. He won the USTA junior national championship in 2016. He has won 5 ATP Challenger titles and 4 ITF Futures tournaments, including his first at the age of 16.
Hunter Reese is an American tennis player. Reese currently competes in doubles on the ATP Challenger Tour. He has a career-high doubles ranking of No. 98 achieved on 13 September 2021.
Sekou Bangoura Jr. is an American professional tennis player.
Yaraslav Iharavich Shyla is a Belarusian tennis player.
The 2016 Stockton ATP Challenger was a professional tennis tournament played on hard courts. It was the first edition of the tournament which was part of the 2016 ATP Challenger Tour. It took place in Stockton, California, United States between 1 October and 9 October 2016.
Federico Coria is an Argentine tennis player. He has a career-high ATP singles ranking of No. 52 achieved on 18 April 2022. He also has a career-high doubles ranking of No. 237 achieved on 21 February 2022. 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 at the 2021 Czech Open.
Václav Šafránek is a Czech tennis 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.
Jiří Lehečka is a Czech tennis player. Lehečka has a career high ATP singles ranking of World No. 91 achieved on 7 March 2022. He also has a career high ATP doubles ranking of World No. 214 achieved on the same date. Lehečka has a career high ITF junior combined ranking of No. 10 achieved on 11 March 2019. He is currently the No. 2 Czech tennis player in singles.
Michael Vrbenský is a Czech tennis player.
The Oracle Challenger Series – New Haven 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 New Haven, Connecticut, United States since 2019.
Fabien Reboul is a French tennis player. He has a career-high ATP singles ranking of World No. 328 achieved on 17 December 2018. He also has a career-high doubles ranking of World No. 110 achieved on 28 June 2021. Reboul has won 6 ATP Challenger doubles titles, one at the 2019 Banja Luka Challenger, two in 2020 in Sibiu (Romania) and Campinas (Brazil) and three in 2021 - two Challengers in Rome and one in Aix-en-Provence partnering Sadio Doumbia.
