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.
Santiago Giraldo Salazar is a retired Colombian professional tennis player. He played on the ATP tour and represented Colombia in the Davis Cup competition. His best tournament result is reaching the final in the 2014 Barcelona Open Banc Sabadell. He is the highest-ranked tennis singles player in Colombia's history, with a career-high singles ranking of 28th in the world, and 77th in doubles.
Rafael Arévalo González is a retired professional tennis player from El Salvador. The majority of Arévalo's professional career has been restricted to playing on the Futures (ITF) circuit, with a further 22 appearances for the El Salvador Davis Cup team; he also had modest success in the juniors, reaching a peak of No. 10 in 2004. However, in 2008, aided by the Salvadoran Tennis Federation, he was awarded an invitation to the 2008 Beijing Olympics tennis tournament. The Tripartite Commission, which issued the invitation, is composed of representatives from International Olympic Committee (IOC), National Olympic Committees (NOCs), and the International Tennis Federation (ITF). It is standard practice to award such invitations to countries with small Olympic teams. Arévalo was the first player from El Salvador to represent the country in a tennis competition at the Olympics. Arévalo defeated South Korea's Lee Hyung-taik in three sets in the first round, before being beaten by Swiss World No. 1 Roger Federer in the second. Later that year, Arévalo won his only ATP Challenger Tour match, beating Borja Malo in Quito, before losing to Julio Cesar Campozano.
Marcelo Fedrizzi Demoliner is a Brazilian professional tennis player, who specializes in doubles. He reached a career-high doubles ranking of world No. 34 in November 2017. Demoliner has won five doubles titles.
The 2010 Seguros Bolívar Open Cali was a professional tennis tournament played on outdoor red clay courts. It was the third edition of the tournament which was part of the 2010 ATP Challenger Tour. It took place in Cali, Colombia between 27 September and 3 October 2010.
The Copa Oster is a tournament for female professional tennis players played on outdoor clay courts. The event is classified as a WTA 125s tournament. It was held annually in Cali, Colombia, from 2008 to 2013. The first edition of the tournament was held in Bogotá in 2007. After a ten-year hiatus, the tournament returned to the Challenger Circuit in 2023.
The 2012 Seguros Bolívar Open Cali was a professional tennis tournament played on clay courts. It was the fifth edition of the tournament which was part of the 2012 ATP Challenger Tour. It took place in Cali, Colombia between 10 and 16 September 2012.
The 2012 Quito Challenger was a professional tennis tournament played on clay courts. It was the 18th edition of the tournament which was part of the 2012 ATP Challenger Tour. It took place in Quito, Ecuador between 1 and 7 October 2012.
The 2013 Quito Challenger was a professional tennis tournament played on clay courts. It was the 19th edition of the tournament which was part of the 2013 ATP Challenger Tour. It took place in Quito, Ecuador between 16 and 22 September.
The 2014 Seguros Bolívar Open Cali was a professional tennis tournament played on clay courts. It was the seventh edition of the tournament which was part of the 2014 ATP Challenger Tour. It took place in Cali, Colombia between 28 April and 4 May 2014.
The 2014 Quito 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 Quito, Ecuador between 15 and 21 September 2014.
The Claro Open Cali is a professional tennis tournament played on outdoor red clay courts. It is currently part of the Association of Tennis Professionals (ATP) Challenger Tour. It is held annually in Cali, Colombia, since 2014.
The 2014 Claro Open Cali was a professional tennis tournament played on clay courts. It was the first edition of the tournament which was part of the 2014 ATP Challenger Tour. It took place in Cali, Colombia between 29 September and 4 October 2014.
Nick Hardt is a Dominican professional tennis player. He has a career high ATP singles ranking of world No. 180 achieved on 29 July 2024 and a doubles ranking of No. 282 achieved on 24 August 2023. He is currently the No. 1 Dominican player.
The 2017 Quito Challenger was a professional tennis tournament played on clay courts. It was the 21st edition of the tournament which was part of the 2017 ATP Challenger Tour. It took place in Quito, Ecuador between 28 August and 3 September 2017.
The 2017 Milo Open Cali was a professional tennis tournament played on clay courts. It was the tenth edition of the tournament which was part of the 2017 ATP Challenger Tour. It took place in Cali, Colombia between 16 and 21 October 2017.
The 2021 Quito Challenger was a professional tennis tournament played on clay courts. It was the 22nd edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Quito, Ecuador between 13 and 19 September 2021.
The 2022 Cali Open 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 Cali, Colombia between 27 June and 2 July 2022.
This was the first edition of the tournament. The tournament originated as a quick replacement for the 2022 edition of the Quito Challenger, which was moved to Cali due to political unrest in Quito.
This was the first edition of the tournament. The tournament originated as a quick replacement for the 2022 edition of the Quito Challenger, which was moved to Cali due to political unrest in Quito.
2022 Cali Open 
