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The International Tennis Federation (ITF) is the governing body of world tennis, wheelchair tennis, and beach tennis. It was founded in 1913 as the International Lawn Tennis Federation by twelve national tennis associations .
The net posts are 3 feet (0.91 m) outside the doubles court on each side or, for a singles net, 3 feet (0.91 m) outside the singles court on each side. The modern tennis court owes its design to Major Walter Clopton Wingfield. In 1873, Wingfield patented a court much the same as the current one for his stické tennis (sphairistike).
A tennis court with its dimensions and components. Call: Verbal utterance by a line judge or chair umpire declaring that a ball landed outside the valid area of play. [31] Canadian doubles: Informal and unsanctioned variation of tennis played with three players—two on one side of the court and one on the other. The team of two players can ...
At the centre of the court, the net is positioned 3 feet (0.91 m) above the playing surface, rising to 5 feet (1.5 m) at the sides of the court. [10] Most courts feature a trough and a sunken basket at the base of the net for collecting balls at the change of ends.
It can be played as singles or doubles, on any size of court and at any level of play. Players are split into two teams. Each team lines up behind the baseline, or somewhere on the court that is safe. One player from the serving team starts the game and plays the point according to existing and traditional rules and etiquette of tennis.
The doubles tennis court boundaries are only in play after the ball is served. Players serve for one total game and then the serve rotates to the other team. Returners must stay on the same side of the court, known as the deuce side or ads side for the duration of the set as the server continuously switches sides after each point. [2]
The traditional court was 90 feet (pieds du roi) in length with 45 feet on each side. The server moved 15 feet closer after scoring, another 15 feet after scoring again, and an additional 10 feet by scoring a third time. [9] (For reference: the French foot is 6.5% larger than the imperial foot.)
In children's tennis, young children may be encouraged to use the underhand serve on 36 feet (11 m) courts. Although this serve is legal, it may be seen as unsportsmanlike in adult tennis. Some notable examples include Michael Chang 's in the Round of 16 at the 1989 French Open against Ivan Lendl , and Martina Hingis was booed by the crowd for ...