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User:Natalia yusseem/Chase Review

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Chase Review in tennis is an electronic line calling examination utilizing Hawk-Eye technology which allows having an instant replay and viewing an electronic trajectory of the ball and the mark, as it had landed on the court. If a tennis facility is equipped with the technology, a player can challenge a call made by an umpire or a linesperson, in case that he/she disagrees with the call, regardless of whether the ball was called “in” or “out”. By the means of challenge, the player requests a chase review to be done. Chase review, therefore, is serving to resolve and/or prevent disputes about correctness of the call made by an umpire or a linesperson.

There can be different outcomes to players’ challenges depending on the circumstances of the match at the time when the challenge have been made. As a result of “correct” challenge, the original linesperson's call is overruled, and the player either wins the point, or the point is re-played. As a result of incorrect challenge, however, the original linesperson's call stands, and the player loses the point.

Chase review technology was first introduced during US Open in 2006. Today central courts of all four Grand Slam tournaments are equipped with the technology of electronic review.

There are certain rules applicable to challenging procedure: for example, each player can only have 3 incorrect challenges per set.

History

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There is a theory that chase review was named after JPMorgan Chase & Co., one of the major US Open investors, however this theory is not confirmed by any of the reliable sources.

There is possibility that the expression chase review comes from the game of real tennis where a player can call a chase and win back a point after he/she fails to retun the ball back to the opponent and the ball makes two bounces. See real tennis article for more information on rules around chase.

References

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US Open