The ATP Finals is the season-ending championship of the ATP Tour. It is the most significant tennis event in the men's annual calendar after the four majors, as it features the top eight singles players and top eight doubles teams based on their results throughout the season. The eighth spot is reserved, if needed, for a player or team who won a major in the current year and is ranked from ninth to twentieth.
The Queen's Club Championships is an annual tournament for men's tennis, held on grass courts at the Queen's Club in West Kensington, London. The event is part of the ATP Tour 500 series on the Association of Tennis Professionals (ATP) Tour. It is currently advertised as the "cinch Championships" after its title sponsor.
A grass court is one of the types of tennis court on which the sport of tennis, originally known as "lawn tennis", is played. Grass courts are made of grasses in different compositions depending on the tournament.
The Italian Open is an annual professional tennis tournament held in Rome, Italy. It is played on clay courts at the Foro Italico, and is held during the second week of May. The tournament is part of the ATP Tour Masters 1000 events on the ATP Tour and part of the WTA 1000 events on the WTA Tour. The two events were combined in 2011. Rafael Nadal has won the men's singles title a record ten times.
The Miami Open is an annual professional tennis tournament held in Miami Gardens, Florida, United States. It is played on outdoor hard courts at the Hard Rock Stadium, and is held in late March and early April. The tournament is part of the ATP Masters 1000 events on the ATP Tour and part of the WTA 1000 events on the WTA Tour.
The Hamburg Open is an annual tennis tournament for professional players held in Hamburg, Germany and part of the Association of Tennis Professionals (ATP) Tour.
The Cincinnati Open is an annual professional tennis event held in Cincinnati, United States. It is played on outdoor hard courts at the Lindner Family Tennis Center in Mason, Ohio, and is held in August. The event started on September 18, 1899, and is the oldest tennis tournament in the United States still played in its original city. It also is the third largest tennis event in the United States, after the US Open and the Indian Wells Masters. It is one of the ATP Masters 1000 tournaments on the ATP Tour, and one of the WTA 1000 tournaments on the WTA Tour.
The U.S. Men's Clay Court Championships is an annual ATP Tour tennis tournament. Founded in 1910, it has been held in nearly two dozen cities, and since 2001 has been held in Houston, Texas. It currently pays out US$474,000 with the winner receiving US$85,900. It is the only remaining ATP World Tour-level tournament in the United States to be played on clay courts.
The Valencia Open, formerly known as Open de Tenis Comunidad Valenciana, was a professional men's tennis tournament played in Valencia, Spain. It was part of the Association of Tennis Professionals (ATP) Tour. The tournament was first played in Valencia in 1995 before moving to the Club de Tenis Puente Romano in Marbella for the 1996 and 1997 editions. From 1998 to 2002, the event was held in Mallorca, and finally, in 2003, moved back to its location in Valencia.
The Austrian Open was a WTA Tour affiliated women's clay court tennis tournament founded in 1896 as the Championships of Austria a combined men's and women's tournament. Following World War II it was known as the Austrian International Championships up to the open era.
The ATP Lyon Open is a men's tennis event on the ATP Tour held in the French city of Lyon. Since 2017, it has been part of the ATP 250 Series and is played on outdoor clay courts. It replaced the Open de Nice Côte d'Azur on the ATP calendar. Former professional tennis player Thierry Ascione is the tournament director.
The Shanghai Masters is an annual tennis tournament for male professional players held in Shanghai, China. It is played on outdoor hard courts at the Qizhong Forest Sports City Arena in the Minhang District, and is held in early October. The tournament is part of the nine ATP Tour Masters 1000 events on the ATP Tour, and is the only one not played in Europe or North America.
The Malaysian Open was a combined men's and women's professional tennis tournament played on outdoor hard courts that was originally founded the Malayan Championships. The event has been held at the Bukit Kiara Equestrian & Country Resort and The Royal Selangor Golf Club. The tournament ran from 1921 to 1978. It was revived for a second time from 1992 through to 1995. It was staged for the third and final time from 2009 to 2018.
The ATP Masters events, known as ATP Masters 1000 tournaments since 2009, are an annual series of nine tennis tournaments featuring the top-ranked players on the ATP Tour since its inception in 1990. The Masters tournaments, along with the Grand Slam tournaments and the year-end championships, make up the most coveted trophies on the annual ATP Tour calendar. In addition to the quadrennial Summer Olympics, they are collectively known as the 'Big Titles'.
The Madrid Open is an annual professional tennis tournament held in Madrid, Spain. It is played on clay courts at the Caja Mágica in Manzanares Park, San Fermín, and is held in late April and early May. The tournament is a ATP Masters 1000 event on the ATP Tour and a WTA 1000 event on the WTA Tour. The tournament is traditionally played on a red clay surface, though it was played on blue clay courts in 2012.
The Rio Open, also known as the Rio Open presented by Claro for sponsorship reasons, is a tennis event on the ATP Tour and former WTA International Tournaments event. The tournament is played on outdoor clay courts at the Jockey Club Brasileiro in Rio de Janeiro, Brazil. It is the only ATP Tour 500 event in South America and the only ATP Tour event in Brazil.
The Ecuador Open Quito was a men's tennis event on the ATP Tour held in the Ecuadorean capital of Quito. Begun in 2015, it was part of the ATP 250 Series. The tournament was played on outdoor clay courts. The event replaced the Chile Open.
The 2015 Istanbul Open was a men's tennis tournament played on outdoor clay courts. It was part of the 2015 ATP World Tour. It was the first edition of the Istanbul Open, and an ATP World Tour 250 event. It took place at the Koza World of Sports Arena in Istanbul, Turkey, from 27 April through 3 May 2015. First-seeded Roger Federer won the singles title.
The 2018 Istanbul Open was a men's tennis tournament played on outdoor clay courts. It was the fourth edition of the Istanbul Open, and an ATP World Tour 250 event. It took place at the Koza World of Sports Arena in Istanbul, Turkey, from 30 April–6 May 2018.
Roger Federer 
Pablo Cuevas 
Diego Schwartzman 
Grigor Dimitrov 
Marin Čilić 
Milos Raonic 
Taro Daniel 
Malek Jaziri 
Radu Albot 
Dušan Lajović 
Robert Lindstedt 
Jürgen Melzer 
Flavio Cipolla 
Dudi Sela 
Roman Jebavý 
Tuna Altuna 
Dominic Inglot 
Nicholas Monroe 