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 2014 San Luis Potosí Challenger was a professional tennis tournament played on clay courts. It was the 20th edition of the tournament which was part of the 2014 ATP Challenger Tour. It took place in San Luis Potosí, Mexico between 14 and 19 April 2014.
The 2015 San Luis Open Challenger Tour was a professional tennis tournament played on hard courts. It was the 22nd edition of the tournament which was part of the 2015 ATP Challenger Tour. It took place in San Luis Potosí, Mexico between 31 March and 5 April.
The 2015 Monterrey Challenger was a professional tennis tournament played on hard courts. It was the sixth edition of the tournament which was part of the 2015 ATP Challenger Tour. It took place in Monterrey, Mexico from 26 to 31 of October 2015.
The 2016 San Luis Open Challenger Tour was a professional tennis tournament played on hard courts. It was the 23rd edition of the tournament which was part of the 2016 ATP Challenger Tour. It took place in San Luis Potosí, Mexico between 21 and 27 March.
The Båstad Challenger was a mens tennis tournament held in Båstad, Sweden founded in 2016. The event is part of the ATP Challenger Tour and is played on outdoor clay courts until 2018 when it was discontinued.
The Copa Ciudad de Tigre is a professional tennis tournament played on hard courts. It is currently part of the ATP Challenger Tour. It is held annually in Tigre, Buenos Aires, Argentina since 2017.
The 2017 Copa Ciudad de Tigre was a professional tennis tournament played on hard courts. It was the first edition of the tournament which was part of the 2017 ATP Challenger Tour. It took place in Tigre, Argentina between 14 and 19 March 2017.
The 2017 San Luis Open Challenger Tour will be a professional tennis tournament played on hard courts. It will be the 24th edition of the tournament which will be part of the 2017 ATP Challenger Tour. It will take place in San Luis Potosí, Mexico between 10 and 16 March 2017.
The 2018 Morelos Open was a professional tennis tournament played on outdoor hard courts. It was the fifth edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Cuernavaca, Mexico between 19–24 February 2018.
The 2018 San Luis Open Challenger Tour was a professional tennis tournament played on hard courts. It was the 25th edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in San Luis Potosí, Mexico between 27 March and 1 April 2018.
The 2018 Puerto Vallarta Open was a professional tennis tournament played on hard courts. It was the 1st edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Puerto Vallarta, Mexico between 30 April and 5 May.
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.
Juan Manuel Cerúndolo is an Argentine professional tennis player. He has won one ATP and 10 ATP Challenger Tour singles titles.
The 2022 Challenger de Tigre was a professional tennis tournament played on clay courts. It was the first edition of the tournament which was part of the 2022 ATP Challenger Tour. It took place in Tigre, Argentina between 3 and 9 January 2022.
Mats Rosenkranz is a German tennis player. He has a career high ATP singles ranking of world No. 343, achieved on 9 May 2022, and a career high doubles ranking of No. 463, achieved on 19 August 2019.
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 Challenger de Tigre II was a professional tennis tournament played on clay courts. It was the second edition of the tournament which was part of the 2022 ATP Challenger Tour. It took place in Tigre, Argentina between 25 April and 2 May 2022.
The 2023 Challenger de Tigre was a professional tennis tournament played on clay courts. It was the third edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Tigre, Argentina between 2 and 8 January 2023.
The 2023 Challenger de Tigre II was a professional tennis tournament played on clay courts. It was the fourth edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Tigre, Argentina between 9 and 15 January 2023.
2023 Challenger de Tigre II 
Juan Manuel Cerúndolo 
Daniel Dutra da Silva 
Oleg Prihodko 
