Table tennis is a sport that two or four plays to play together as opponents with each other at each end of table on which a net wall is set up at midle to divide the table court in half.Every player got her or his own racket that used to serve a ball or return a ball to another half of table court.A player make one point if the opponent could not return the ball to his or her half of table court.The Player who first to reach to 11 points won the game,or had two points ahead if 10-to-10 happens.A match is made by total 5 games or 7 games,the player who won three or 4 games won the match.