In sports, backspin or underspin refers to the reverse rotation of a ball, in relation to the ball's trajectory, that is imparted on the ball by a slice or chop shot. Backspin generates an upward force that lifts the ball (see Magnus effect).[1] While a normal hit bounces well forward as well as up, backspin shots bounce higher and less forward. Backspin is the opposite of topspin.

4 phases in a backspin curve in table tennis

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.[2]

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.[3] Backspin will also help with distance control and, 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.

See also

Sources

  1. ↑ Tennis Science: How Player and Racket Work Together. University of Chicago Press. 26 October 2015. ISBN 9780226136400.
  2. ↑ TABLE TENNIS: Skills, Techniques, Tactics. Crowood. August 2012. ISBN 9781847974389.
  3. ↑ Backspin: 120 Years of Golf in British Columbia. Heritage House Publishing Co. 2012. ISBN 9781927051412.
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