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Clay Courts
A clay court is one of the types of tennis court on which the sport of tennis, originally known as "lawn tennis", is played. Clay courts are made of crushed stone, brick, shale, or other unbound mineral aggregate depending on the tournament. The French Open uses clay courts, the only Grand Slam tournament to do so. Clay courts are more common in Continental Europe and Latin America than in North America, Asia-Pacific or Britain. Two main types exist: red clay, the more common variety, and green clay, also known as "rubico", which is a harder surface. Although less expensive to construct than other types of tennis courts, the maintenance costs of clay are high as the surface must be rolled to preserve flatness. Play Clay courts are considered "slow" because the balls bounce relatively high and lose much of their initial speed when contacting the surface, making it more difficult for a player to deliver an unreturnable shot. Points are usually longer as there are fewer winners ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clay-court Specialist
A clay court is one of the types of tennis court on which the sport of tennis, originally known as "lawn tennis", is played. Clay courts are made of crushed stone, brick, shale, or other unbound mineral aggregate depending on the tournament. The French Open uses clay courts, the only Grand Slam tournament to do so. Clay courts are more common in Continental Europe and Latin America than in North America, Asia-Pacific or Britain. Two main types exist: red clay, the more common variety, and green clay, also known as "rubico", which is a harder surface. Although less expensive to construct than other types of tennis courts, the maintenance costs of clay are high as the surface must be rolled to preserve flatness. Play Clay courts are considered "slow" because the balls bounce relatively high and lose much of their initial speed when contacting the surface, making it more difficult for a player to deliver an unreturnable shot. Points are usually longer as there are fewer winners ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Topspin
In ball sports, topspin or overspin is a property of a ball that rotates forwards as it is moving. Topspin on a ball propelled through the air imparts a downward force that causes the ball to drop, due to its interaction with the air (see Magnus effect). Topspin is the opposite of backspin. Baseball In baseball, the curveball, a type of pitch which usually has downward movement, is thrown in such a way as to put topspin on the ball. Its close relatives are the slider and the slurve. The "curve" of the ball varies from pitcher to pitcher. Cue sports In snooker, pocket billiards and billiards, players use topspin to keep the cue ball moving, including after it hits other balls. They get top spin by hitting the cue against the top of the ball. Cricket In cricket, a top-spinner is a type of delivery bowled by a cricketer bowling either wrist spin or finger spin. In either case, the bowler imparts the ball with top spin by twisting it with his or her fingers prior to delivery ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Hard Court Championships
World Hard Court Championships was an annual major tennis tournament sanctioned by the International Lawn Tennis Federation and held from 1912 to 1923. It was principally held in Paris, on clay courts of the Stade Français in the Paris suburb of Saint-Cloud, with one exception when they were held at the Royal Leopold Club in Brussels, Belgium, in 1922. The name of the event referred to its venues that were surfaced with clay, which at the time was customarily transcribed as "hard court" in English. It was open to all international amateur players from all nationalities, unlike the French Championships, which were open only to tennis players who were members of clubs in France through 1924; because of this the World Hard Court Championships is sometimes considered as the proper precursor to the French Open. The French Championships were also held at a different venue at the time, the Racing Club de France, Paris. At an annual general meeting held on 16 March 1923 in Paris, Franc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South African Open (tennis)
The South African Open – formerly known as the South African Championships, and for sponsorship reasons the Altech NCR South African Open and the Panasonic South African Open – is a defunct Grand Prix Tennis Tour, World Championship Series, ATP Tour and Virginia Slims Circuit affiliated tennis tournament played from 1891 to 2011 in South Africa. It was part of the pre-open era international seasonal tours from 1891 to 1967 from 1968 to 1971, part of the open era independent events tour from 1972, when it became part the men's Grand Prix Tour until 1989. The women's side of the competition was only briefly part of Virginia Slims tour (1970–74) before it returned to the independent circuit. The men's event joined the ATP Tour in 1990. It was mainly held in Johannesburg in South Africa, but played in other locations such as Cape Town, Durban, Port Elizabeth, East London, Bloemfontein, Kimberly and Pretoria. The tournament was played on outdoor hard courts it ran for a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anthony Wilding
Anthony Frederick Wilding (31 October 1883 – 9 May 1915), also known as Tony Wilding, was a New Zealand world No. 1 tennis player and soldier who was killed in action during World War I. Considered the world's first tennis superstar, Wilding was the son of wealthy English immigrants to Christchurch, Canterbury, New Zealand and enjoyed the use of private tennis courts at their home. He obtained a legal education at Trinity College, Cambridge and briefly joined his father's law firm. Wilding was a first-class cricketer and a keen motorcycle enthusiast. His tennis career started with him winning the Canterbury Championships aged 17. He developed into a leading tennis player in the world during 1909–1914 and is considered to be a former world No. 1. He won 11 Grand Slam tournament titles, six in singles and five in doubles, and is the first and to date only player from New Zealand to have won a Grand Slam singles title. In addition to Wimbledon, he also won three other ILTF W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
US Men's Clay Court Championships
The U.S. Men's Clay Court Championships is an annual ATP Tour tennis tournament that started in 1910. It is the last remaining ATP World Tour-level tournament in the United States to be played on clay courts. The tournament began in 1910 when the Western Lawn Tennis Association (a section of the United States Lawn Tennis Association now known as the USTA/Midwest) lobbied the USLTA that a National Clay Court Championship would help promote the establishment of more clay courts in the West. Clay courts were more economical to install and maintain than grass courts, and the hope was that the lower costs associated with court construction would allow for a more rapid expansion of the game. The first National Clay Court Championships were held at the Omaha Field Club with a crowd of 5,000 watching the finals. Participation and play on clay grew as a result of the event and others, and in 1914 the event was moved to the Cincinnati Tennis Club. It has since been played in numerous cities, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
US Open (tennis)
The US Open Tennis Championships is a hardcourt tennis tournament held annually in Queens, New York. Since 1987, the US Open has been chronologically the fourth and final Grand Slam tournament of the year. The other three, in chronological order, are the Australian Open, French Open and Wimbledon. The US Open starts on the last Monday of August and continues for two weeks, with the middle weekend coinciding with the US Labor Day holiday. The tournament is of one of the oldest tennis championships in the world, originally known as the U.S. National Championship, for which men's singles and men's doubles were first played in August 1881. It is the only Grand Slam that was not affected by cancellation of World War I and World War II or interrupted by the COVID-19 pandemic in 2020. The tournament consists of five primary championships: men's and women's singles, men's and women's doubles, and mixed doubles. The tournament also includes events for senior, junior, and wheelchai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charleston, South Carolina
Charleston is the largest city in the U.S. state of South Carolina, the county seat of Charleston County, and the principal city in the Charleston–North Charleston metropolitan area. The city lies just south of the geographical midpoint of South Carolina's coastline on Charleston Harbor, an inlet of the Atlantic Ocean formed by the confluence of the Ashley, Cooper, and Wando rivers. Charleston had a population of 150,277 at the 2020 census. The 2020 population of the Charleston metropolitan area, comprising Berkeley, Charleston, and Dorchester counties, was 799,636 residents, the third-largest in the state and the 74th-largest metropolitan statistical area in the United States. Charleston was founded in 1670 as Charles Town, honoring King CharlesII, at Albemarle Point on the west bank of the Ashley River (now Charles Towne Landing) but relocated in 1680 to its present site, which became the fifth-largest city in North America within ten years. It remained unincor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charleston Open
The Credit One Charleston Open, formerly known as the Volvo Car Open and the Family Circle Cup, is a WTA Tour-affiliated professional tennis tournament for women, held every year since 1973. It is the oldest professional all-women's tournament in America with a $888,636 purse. The tournament celebrated 50 years in 2022 at the newly renovated Credit One Stadium located in Charleston, South Carolina. The tournament is played on the green clay courts at LTP-Daniel Island (which contains the 10,200-seat Credit One Stadium) on Daniel Island in Charleston, South Carolina, USA. From its inception in 1973 to 2000, the tournament was held at the Sea Pines Plantation on Hilton Head Island with the exception of 1975 and 1976 when it was played on Amelia Island off the coast of Florida. The event moved to Charleston, and specifically Daniel Island, in 2001. From 1973 to 2015, the title sponsor was '' Family Circle'' magazine, which had made it the longest-running title sponsor in professio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Women's Tennis Association
The Women's Tennis Association (WTA) is the principal organizing body of women's professional tennis. It governs the WTA Tour which is the worldwide professional tennis tour for women and was founded to create a better future for women's tennis. The WTA's corporate headquarters is in St. Petersburg, Florida, with its European headquarters in London and its Asia-Pacific headquarters in Beijing. The Women's Tennis Association was founded in June 1973 by Billie Jean King, and traces its origins to the inaugural Virginia Slims tournament, arranged by Gladys Heldman, sponsored by Joe Cullman, CEO of Philip Morris, and held on 23 September 1970 at the Houston Racquet Club in Houston, Texas. Rosie Casals won this first event. When the Women's Tennis Association was founded, Billie Jean King was one of nine players that comprised the WTA, also referred to as the Original 9, that included Julie Heldman, Valerie Ziegenfuss, Judy Dalton, Kristy Pigeon, Peaches Bartkowicz, Kerry Me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibolite
Amphibolite () is a metamorphic rock that contains amphibole, especially hornblende and actinolite, as well as plagioclase feldspar, but with little or no quartz. It is typically dark-colored and dense, with a weakly foliated or schistose (flaky) structure. The small flakes of black and white in the rock often give it a salt-and-pepper appearance. Amphibolite frequently forms by metamorphism of mafic igneous rocks, such as basalt. However, because metamorphism creates minerals entirely based upon the chemistry of the protolith, certain 'dirty marls' and volcanic sediments may also metamorphose to an amphibolite assemblage. Deposits containing dolomite and siderite also readily yield amphibolite (tremolite-schist, grunerite-schist, and others) especially where there has been a certain amount of contact metamorphism by adjacent granitic masses. Metamorphosed basalt (metabasalt) creates ''ortho-amphibolite'' and other chemically appropriate lithologies create ''para-amphibolite''. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
