The Davis Cup is the premier international team event in men's tennis. It is run by the International Tennis Federation (ITF) and is contested annually between teams from competing countries in a knock-out format. It is described by the organisers as the "World Cup of Tennis", and the winners are referred to as the World Champion team. The competition began in 1900 as a challenge between Great Britain and the United States. By 2016, 135 nations entered teams into the competition.
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 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.
Sergiy Eduardovych Stakhovsky is a Ukrainian former professional tennis player. Stakhovsky turned professional in 2003 and had been playing mostly at the Challenger level from 2005 to 2008. His career-high singles ranking is World No. 31 and he has reached as high as No. 33 in doubles.
The Manchester Trophy is a professional tennis tournament played on outdoor grass courts. It was previously part of the ATP Challenger Tour and now currently part of the ITF Women's Circuit. It is held annually at the Northern Lawn Tennis Club in the Didsbury suburb of Manchester, England, United Kingdom, since 1995. The original defunct tournament, the Manchester Open, began in 1880 and continued until the event became a lower level Challenger tournament in 1995. The Challenger level event ended in 2009, but was revived in 2015. The men's tournament was discontinued after the 2016 edition while the women's tournament was established in 2017.
The Nottingham Trophy was an annual tennis tournament played in Nottingham, England. The tournament was part of the ATP Challenger Tour and the International Tennis Federation as a $75,000 event. The tournament's key sponsor was Dutch insurance firm Aegon. The Aegon Trophy and Aegon Nottingham Challenge were the only Challenger events to be held on grass. The tournament was held at the end of May before the main tour's grass-court season starts.
The Rijeka Open 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 Rijeka, Croatia, since 2007.
The Baton Rouge Pro Tennis Classic was a professional tennis tournament played on outdoor hard courts. It was latterly part of the ATP Challenger Series and ATP Challenger Tour. It is held annually at the Lamar Tennis Center in Baton Rouge, Louisiana, United States, as a Futures from 2006 to 2007 and a Challenger from 2008 until 2010.
The ITF Women's World Tennis Tour, previously known as the ITF Women's Circuit, is a series of professional tennis tournaments run by the International Tennis Federation for female professional tennis players.
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 Nottingham Challenge was an annual tennis tournament played in Nottingham, England. The men's tournament was part of the ATP Challenger Tour. The women's event was played in International Tennis Federation (ITF) Women's Circuit.
The Association of Tennis Professionals (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 Internazionali di Tennis San Marino Open is a professional tennis tournament played on red clay. It's part of the Association of Tennis Professionals (ATP) Challenger Tour. It's held annually at the Centro Tennis Cassa di Risparmio di Fonte dell'Ovo in the City of San Marino, San Marino, since 1988.
The Traralgon International is a professional tennis tournament played on outdoor hard courts. It is currently part of the ATP Challenger Tour and the International Tennis Federation (ITF) Women's World Tennis Tour. It is held annually in Traralgon, Victoria, Australia, since 2006.
Félix Auger-Aliassime is a Canadian professional tennis player. He is the third-youngest player ranked in the top 20 by the Association of Tennis Professionals (ATP), and has a career-high singles ranking of No. 9, which he achieved on 10 January 2022, and doubles ranking of No. 60, attained on 1 November 2021. He has one singles title and one doubles title on the ATP Tour.
Cameron Norrie is a British professional tennis player. He reached a career-high singles ranking of world No. 12 and No. 123 in doubles. He has three ATP Tour singles and one doubles title, three Challenger singles titles and three Futures singles titles. Norrie is the current British No. 1 in men's singles, and has been so since 18 October 2021.
The Oracle Challenger Series – Houston is a professional tennis tournament played on hard courts. It is currently part of the Association of Tennis Professionals (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.
The Tennis Challenger Hamburg is a professional tennis tournament played on indoor hard courts. It is currently part of the ATP Challenger Tour. It is held annually in Hamburg, Germany since 2019.
The Association of Tennis Professionals (ATP) Challenger Tour in 2022 is the secondary professional tennis circuit organized by the ATP. The 2022 ATP Challenger Tour calendar comprises 60 tournaments, with prize money ranging from $37,520 up to $159,360. It is the 45th edition of challenger tournaments cycle, and 14th under the name of Challenger Tour.
2014 Shriram Capital P.L. Reddy Memorial Challenger 
