Tennis is a sport usually played between two players (singles) or between two teams of two players each (doubles).
Each player uses a racket that is strung to strike a hollow rubber ball covered with felt over a net into the opponent’s court.

Tennis is an Olympic sport and is played at all levels of society at all ages. The sport can be played by anyone who can hold a racket, including people in wheelchairs.

The plot must be a long rectangle of 78 feet (23.77 m) and, for singles matches, 27 feet wide (8.23 m). For doubles matches, the land must be 36 feet (10.97 m) wide. It must be divided transversely in the middle by a net suspended by a cord or metal cable whose ends must be secured, or passed over two columns to a height of 3 1 / 2 feet (1.07 m).The net must be fully extended so that it completely fills the space between the two poles and must be sufficiently small mesh to prevent the ball passing through them. Net height should be 3 feet (0.914 m) in the middle, where it must be held down tightly by a strap.

Competition organizers must announce prior to competition: a. The number of balls for play (2, 3, 4 or 6). b. Exchange of balls, if any.

a. The standard Game
The score in a standard game is kept score as follows the servant first announced:
No point – “zero”
First point – “15”
The second point – “30”
The third point – “40”
Fourth point – “Game”
except that each player / team has won three points and the score will be “equality” After “Equality” the score is “Advantage” for the player / team that won the next point. If the same player / team also wins the next point, that player / team wins the “Game” site, if the player / team wins the next point effects, the score is again “Equality”. A player /team must win two consecutive points immediately after “Equality” to win the “Game”.

b. Tie-break
In tie-break, the score is kept “Zero”, “1”, “2”, “3”, etc.. The first player / team to win seven points wins the “Game” and the “Set”, provided it is a difference of two points over the opponent (you). If necessary, the tie-break will continue until the difference is made.

The player who follows the service will serve the first point of the tie-break. These two points will serve your opponent (s) (the double opposing team player who is going to serve). After that each player / team shall serve alternately by two points by the end tie-break (the double alternation at service in each team will continue in the same order as during that set).

The player / team whose turn it was to serve first in the tie-break will be receiving in the first game of the next set.