Second, the competition adopts the best of three games or the best of five games. In singles, first legal serve, the server, and then the receiver legally counter-attack, and then they counter-attack alternately. That is to say, the person who serves first by drawing lots will serve twice, then the opponent will serve twice, and then serve alternately.
3. When the score reaches 10: 10, a one-ball substitution system will be adopted until the difference of two points is opened to decide the winner.
Four, in the course of the game, table tennis touches the net twice in a row (after touching the net, it doesn't fall on the table tennis table, but touches the net again), which is a dead ball, and the other side scores one point; Fifth, at the beginning of the next game, the two sides exchange venues and serve rights.
The above is the flow of a game. Generally speaking, one game is the best of the seven games, and the other games are the same as above.