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  2. Racket (sports equipment) - Wikipedia

    en.wikipedia.org/wiki/Racket_(sports_equipment)

    Racquetball racket and ball. A racket or racquet[1] is an item of sporting equipment used to strike a ball or shuttlecock back-and-forth in games such as tennis, badminton, squash, racquetball and padel. The typical basic structure of a racket consists of a widened distal end known as the head (which presents a flattened firm surface designed ...

  3. Tennis racket theorem - Wikipedia

    en.wikipedia.org/wiki/Tennis_racket_theorem

    The tennis racket theorem or intermediate axis theorem, is a kinetic phenomenon of classical mechanics which describes the movement of a rigid body with three distinct principal moments of inertia. It has also dubbed the Dzhanibekov effect , after Soviet cosmonaut Vladimir Dzhanibekov , who noticed one of the theorem's logical consequences ...

  4. Point (tennis) - Wikipedia

    en.wikipedia.org/wiki/Point_(tennis)

    unintentionally touching the ball twice with the racket, returning the ball around a net post and below the height of the net, and; returning the ball under the net cord between the net and net post. The lines are considered part of the court and so a ball is "in" the court if it touches any part of the relevant line, even if a majority of the ...

  5. 10 and Under Tennis - Wikipedia

    en.wikipedia.org/wiki/10_and_Under_Tennis

    10 and Under Tennis is a program that was introduced by the United States Tennis Association (USTA) in the summer of 2010. [1] Upon making the change official in 2012, it modified the format of all USTA and International Tennis Federation (ITF) events involving players of years 10 and younger. [1] The program changes the game making it easier ...

  6. Grip (tennis) - Wikipedia

    en.wikipedia.org/wiki/Grip_(tennis)

    Grip (tennis) In tennis, a grip is a way of holding the racquet in order to hit shots during a match. The three most commonly used conventional grips are: the Continental (or "Chopper"), the Eastern and the Semi-Western. Most players change grips during a match depending on what shot they are hitting.

  7. Tennis - Wikipedia

    en.wikipedia.org/wiki/Tennis

    Tennis is a racket sport that is played either individually against a single opponent (singles) or between two teams of two players each (doubles). Each player uses a tennis racket strung with a cord to strike a hollow rubber ball covered with felt over or around a net and into the opponent's court. The object of the game is to manoeuvre the ...

  8. touchtennis - Wikipedia

    en.wikipedia.org/wiki/Touchtennis

    Touchtennis is a modified version of tennis played on a compact court with foam balls and shorter (21-inch or 53-centimetre) rackets. It is regularly featured on Sky Sports and is growing in popularity and acceptance as an alternative form of the full size game.

  9. Tennis technology - Wikipedia

    en.wikipedia.org/wiki/Tennis_technology

    As materials improved, becoming lighter and stronger, rackets were made larger, accordingly. Larger rackets have more surface area, making them easier for many players to return a ball. Sizes are: Mid: 93 square inches (600 cm 2) and below. Mid-plus: 94–105 square inches (610–680 cm 2) Oversized: 106–122 square inches (680–790 cm 2)

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