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 BSI Challenger Lugano was a professional tennis tournament played on outdoor red clay courts. It has been part of the Association of Tennis Professionals (ATP) Challenger Tour. It was held annually in June at the Tennis Club Lido Lugano in Lugano, Switzerland, from 1999 until 2010.
The Lexington Challenger is a professional tennis tournament played on outdoor hardcourts. It is currently part of the ATP Challenger Tour and the ITF Women's World Tennis Tour, and has been held annually at the Hilary J. Boone Tennis Complex in Lexington, Kentucky, since 1995 for men and since 1997 for women. It is presented by Meridian Wealth Management.
The Brawo Open, known as Nord/LB Open until 2010 and the Sparkassen Open until 2021, 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 at the Braunschweiger Tennis- und Hockey Club in Braunschweig, Germany, since 1994.
The Tallahassee Tennis Challenger is a professional tennis tournament played on green clay courts. It is currently part of the Association of Tennis Professionals (ATP) Challenger Tour. It is held annually at the Forestmeadows Tennis Complex in Tallahassee, Florida in the United States, since 2000.
The Sanremo Challenger, previously known as Sanremo Tennis Cup 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 at the Circolo Tennis Sanremo in Sanremo, Italy, since 2002. After a hiatus of 10 years, it came back in 2022 with a new edition.
The Rijeka Open was a professional tennis tournament played on outdoor red clay courts. It was part of the Association of Tennis Professionals (ATP) Challenger Tour from 2007 to 2011 and was held in Rijeka, Croatia.
The Maccabi Men's Challenger was a professional tennis tournament played on outdoor hard courts. It was part of the ATP Challenger Tour. It was held at the Maccabi Tennis Club in Melbourne, Australia, in 2009.
The Città di Caltanissetta 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 Caltanissetta, Italy, since 1999.
The Lima Challenger 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 Lima, Peru, since 2000.
The ATP Challenger Tour was the secondary professional tennis circuit organized by the Association of Tennis Professionals (ATP). The 2011 ATP Challenger Tour calendar comprised 15 top tier Tretorn SERIE+ tournaments, and approximately 150 regular series tournaments, with prize money ranging from $35,000 up to $150,000.
The ATP Challenger Tour was the secondary professional tennis circuit organized by the ATP. The 2012 ATP Challenger Tour calendar comprised 15 top tier Tretorn SERIE+ tournaments, and a total of 148 tournaments, with prize money ranging from $35,000 up to $150,000.
The ATP Challenger Tour is the secondary professional tennis circuit organized by the Association of Tennis Professionals (ATP). The 2013 ATP Challenger Tour calendar comprised 149 tournaments, with prize money ranging from $35,000 up to $220,000.
The Internazionali di Tennis San Marino Open is a professional tennis tournament played on red clay. It is currently part of the Association of Tennis Professionals (ATP) Challenger Tour and has been held annually in San Marino since 1988. For the first three years it was held at Centro Sportivo Serravalle before moving to its current home in 1991, the Centro Tennis Cassa di Risparmio di Fonte dell'Ovo in the City of San Marino.
A carpet court is a type of tennis court. The International Tennis Federation describes the surface as a "textile or polymeric material supplied in rolls or sheets of finished product". It is one of the fastest court types, second only to grass courts. The use of carpet courts in ATP Tour competitions ended in 2009. In women's tennis, no WTA Tour tournaments have used carpet courts since the last edition of the Tournoi de Québec in 2018. ATP Challenger and ITF circuit level tournaments with carpet courts continue to exist up to the present (2024).
The Rio Tennis Classic was a professional tennis tournament played on hard courts. It is part of the Association of Tennis Professionals (ATP) Challenger Tour. The tournament took place in Rio de Janeiro, Brazil. The event was cancelled due lack of sponsors in 2018 and returned with another venue and surface in 2021.
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 – New Haven was a professional tennis tournament played on hard courts. It was part of the ATP Challenger Tour and the Women's Tennis Association (WTA) 125K series. It was held in New Haven, Connecticut, United States in 2019.
The Hamburg Ladies & Gents Cup is a professional tennis tournament played on indoor hard courts. It is currently part of the ATP Challenger Tour and the ITF Women's World Tennis Tour. It is held annually in Hamburg, Germany since 2019.
