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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 centre. The same surface can be used to play both doubles and singles matches. A variety of surfaces can be used to create a tennis court, each with its own characteristics which affect the playing style of the game.
The original multi-colored, no-line tennis court has eleven separate colored areas with no segregating lines. As a functional, no-line tennis court design it was issued a USPTO utility patent #4,045,022 in 1977 to its inventors, Geoffrey Grant, an avid and successful senior tennis competitor, and Robert Nicks, an engineer.
An electronic line judge is a device used in tennis to automatically detect where a ball has landed on the court. Attempts to revolutionize tennis officiating and the judging of calls in the sport began in the early 1970s and has resulted in the design, development and prototyping of several computerized, electronic line-judge devices.
Line judge (or linesman, lineswoman or line umpire): Person designated to observe the passage of tennis balls over the boundary lines of the court. A line judge can declare that a play was inside or outside the play area and cannot be overruled by the players.
FILE - Switzerland's Stan Wawrinka jokes with a line judge in his Men's singles match against United States' Reilly Opelka during the Wimbledon Tennis Championships in London, Wednesday, July 3, 2019.
A valid serve must occur from the serving court before the second gallery line, and hit the service penthouse before dropping in the receiving court, marked by the service line and fault line. Corresponding chase lines extend from the centres of the side galleries on both service and hazard ends, including the first , door , second and last .
Baseline – line marking the end of the court, at the back of the back court and the alleys. Center line – line dividing the two service boxes in the center of the court. Center mark – 12-inch mark at the halfway point of the baseline used to distinguish the right and left halves of a tennis court.
Line judge can refer to the following: Line judge (tennis) , an official in tennis to observe the passage of tennis balls over the boundary lines of the court Electronic line judge , an electronic system used in tennis to automatically detect where a ball has landed on the court