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.
The U.S. National Indoor Championships was a tennis tournament that was last held at the Racquet Club of Memphis in Memphis, Tennessee, United States. The event was played on indoor hard courts and usually took place in February. For much of its more than 100-year history it was a combined men's and women's tournament but in 2014, its final year, only a men's tournament was held. The event was previously known under various sponsored names including the Memphis Open, the Regions Morgan Keegan Championships, the Kroger St. Jude Championship, and the Volvo Championships. It was called throughout most of its history the National Indoor Championships.
The Stockholm Open, branded by its sponsored name as the BNP Paribas Nordic Open since 2023, is a professional tennis tournament played on indoor hardcourts at the Kungliga tennishallen in Stockholm, Sweden. Since 2001, the event has been held annually in October by the Association of Tennis Professionals (ATP) as an ATP 250 tournament on the ATP Tour. The tournament is owned by The Royal Lawn Tennis Club of Stockholm, SALK and Tennis Stockholm.
The Nottingham Open, originally known as the Nottingham Championships or Nottingham Lawn Tennis Tournament (1887–1967), is a tennis tournament for men and women held in Nottingham, United Kingdom, played on outdoor grass courts at the Nottingham Tennis Centre. After being discontinued in 2008, it was downgraded in 2011 to ATP Challenger Tour and ITF Women's Circuit. briefly re-established as an ATP World Tour 250 event on the men's tour in 2015 and 2016, before returning to a Challenger event in 2017, and since 2015 it has been an international event on the women's tour. The tournament is held in June as a "warm-up" for Wimbledon.
The Shanghai Masters is a professional men's tennis tournament played on outdoor hard courts, and held annually in early October at the Qizhong Forest Sports City Arena in the Minhang District of Shanghai. The tournament is chronologically the eighth out of nine ATP Tour Masters 1000 events on the ATP Tour, and is the only one not played in Europe or North America.
The 1980 Volvo Grand Prix was a men's professional tennis circuit held that year. It incorporated the four grand slam tournaments, the Grand Prix tournaments. The Grand Prix circuit is a precursor to the ATP Tour.
The 1979 Colgate-Palmolive Grand Prix was a professional tennis circuit held that year. It consisted of four Grand Slam tournaments, the Grand Prix tournaments and the Nations Cup, a team event.
The 1978 Colgate-Palmolive Grand Prix was a professional tennis circuit held that year. It consisted of four Grand Slam tournaments, the Grand Prix tournaments and the Nations Cup, a team event. In addition eight World Championship Tennis (WCT) tournaments, a separate professional tennis circuit held from 1971 through 1977, were incorporated into the Grand Prix circuit. The 28 tournaments with prize money of $175,000 or more formed the Super Series category. Jimmy Connors won 10 of the 84 tournaments which secured him the first place in the Grand Prix points ranking. However he did not play enough tournaments (13) to qualify for largest share ($300,000) of the bonus pool, which instead went to third–ranked Eddie Dibbs.
The Irving Tennis Classic is a tennis tournament held annually in Irving, Texas, United States since 2012. The event is one of main tournaments of the ATP Challenger Tour calendar and is played on outdoor hard courts.
The Memphis Open was a professional tennis tournament that ran from 1975 to 2017. From 1977 onwards, the event was held at the Racquet Club of Memphis in Memphis, Tennessee. The Memphis Open was the only ATP event in the United States which was played on indoor hard courts; it usually took place in February. For part of its history it was a combined men's and women's tournament, but for its final four years it was solely a men's tournament.
The Manila Challenger was a tennis tournament held in Manila, Philippines 2016. The event is part of the ATP Challenger Tour and is played on outdoor hard courts. The inaugural tournament of the Manila Challenger was held at the newly refurbished Rizal Memorial Tennis Center in Manila on January 18–24, 2016 with local players and experienced ATP-ranked tennis players vying for the top prize of $75,000 dollars.
The Koblenz Open is a professional tennis tournament played on indoor hard courts. It is currently part of the ATP Challenger Tour. It is held annually in Koblenz, Germany since 2017.
The 2017 Kunal Patel San Francisco Open was a professional tennis tournament played on indoor hard courts. It was the first edition of the tournament and was a part of the 2017 ATP Challenger Tour. It took place in San Francisco, United States from February 6–12, 2017.
Nicola Kuhn is an Austrian-born German tennis player. He has a career high ATP singles ranking of World No. 174, achieved on 7 October 2019 and a doubles ranking of World No. 287 achieved on 28 January 2019.
The 2018 Kunal Patel San Francisco Open was a professional tennis tournament played on indoor hard courts. It was the second edition of the tournament and was a part of the 2018 ATP Challenger Tour. It took place in San Francisco, United States from February 5–11, 2018.
Nathaniel Lammons is an American professional tennis player who specializes in doubles. He has been ranked by the ATP as high as world No. 27 in doubles, which he achieved on 11 September 2023. He also attained a career-high singles ranking of world No. 591 in January 2019. He has won five ATP doubles titles.
The 1992 Volvo San Francisco was a men's tennis tournament played on indoor hard courts at the San Francisco Civic Auditorium in San Francisco, California in the United States and was part of the World Series of the 1992 ATP Tour. It was the 104th edition of the tournament and was held from February 3 through February 9, 1992. Second-seeded Michael Chang won the singles title and earned $33,800 first-prize money. With the points that first-seeded runner-up Jim Courier earned at the tournament he became the new No. 1 ranked player in the world when the Association of Tennis Professionals (ATP) published their rankings on February 10, 1992.
The 1991 Volvo San Francisco was a men's tennis tournament played on indoor carpet courts at the San Francisco Civic Auditorium in San Francisco, California in the United States and was part of the World Series of the 1991 ATP Tour. It was the 103rd edition of the tournament and was held from February 4 through February 10, 1991. Sixth-seeded Darren Cahill won the singles title and earned $33,800 first-prize money.
The 1989 Volvo Tennis San Francisco, also known as the Pacific Coast Championships, was a men's tennis tournament played on indoor carpet courts at the Cow Palace in San Francisco, California in the United States. The event was part of the Super Series of the 1989 Nabisco Grand Prix circuit. The 100-year anniversary of the inaugural event was the 101st edition of the tournament and was held from September 25 through October 1, 1989. Third-seeded Brad Gilbert won the singles title and earned $59,500 first-prize money.
The 1989 Campionati Internazionali di San Marino was a men's tennis tournament played on outdoor clay courts at Centro Sportivo Serravalle in San Marino and was part of the 1989 Grand Prix. It was the inaugural edition of the tournament as an ATP Tour event and the second overall, following the initial challenger in 1988. It was held from 21 August until 27 August 1989. Unseeded José Francisco Altur, who entered the main draw as a qualifier, won the singles title.
