Backspin

In racquet sports and golf, backspin (also known in racket sports as slice or underspin), is a shot such that the ball rotates backwards (as though rolling back towards the player) after it is hit. This direction of spin imparts an upward force that lifts the ball. While a normal hit bounces well forward as well as up, backspin shots bounce higher and less forward. Backspin is the opposite of topspin.

In racket sports, the higher bounce imparted by backspin may make a receiver who has prepared for a different shot miss or mis-hit the ball when swinging. A backspin shot is also useful for defensive shots because a backspin shot takes longer to travel to the opponent, giving the defender more time to get back into position. Also, because backspin shots tend to bounce less far forward once they reach the opposite court, they may be more difficult to attack. This is especially important in table tennis because one must wait for the ball to bounce before hitting it, whereas in tennis the opponent may volley the ball.

In golf, a well-struck shot will result in a large amount of backspin that will carry the ball higher into the air and farther. Backspin also helps with distance control, as if there is enough backspin, the ball will "check" if it lands on the putting surface, and sometimes even creep backwards (in the opposite direction that the ball was flying) upon landing.

• Outline
  

  SPORTS WORLD

  Tennis

  Each player uses a tennis racket that is strung with 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 play the ball in such a way that the opponent is not able to play a valid return. The player who is unable to return the ball will not gain a point, while the opposite player will.

  History: Historians believe that the game's ancient origin lay in 12th century northern France, where a ball was struck with the palm of the hand.

  Equipment: Part of the appeal of tennis stems from the simplicity of equipment required for play. Beginners need only a racket and balls.

  Court: A tennis court is the venue where the sport of tennis is played. It is a firm rectangular surface with a low net stretched across the center.

  Manner of Play: The players (or teams) start on opposite sides of the net. One player is designated the server, and the opposing player is the receiver.

  Point: A point in tennis is the smallest subdivision of the match, the completion of which changes the score.

  Official: In tennis, an official is a person who ensures that a match or tournament is conducted according to the International Tennis Federation Rules of Tennis and other competition regulations.

  Shots: A competent tennis player has eight basic shots in his or her repertoire: the serve, forehand, backhand, volley, half-volley, overhead smash, drop shot, and lob.

  Grips of Racket: A grip is a way of holding the racquet in order to hit shots during a match. Most players change grips during a match depending on what shot they are hitting.

  Strategy: Players use different tennis strategies to enhance their own strengths and exploit their opponent's weaknesses in order to gain the advantage and win more points.

RESOURCES
This article uses material from the Wikipedia articles "Tennis" and "Backspin", which is released under the Creative Commons Attribution-Share-Alike License 3.0.