Tennis, badminton, table tennis doubles league simple and easy to manage the table and the ranking accordingly made it easy to see.1. In the normal league match, 4, 5, and 6 teams will play the league.2. Groups can be organized up to 30 games to manage multiple groups that are organized at the regular and monthly conventions of the club.3. As a result of the league match, the two teams applied the same-time winner principle, and if more than three teams have the same tie, it is possible to determine the ranking by multiple points or difference.4. Handy is applied (additional points) between members with skill differences.5. The ranking result of each group made it possible to transmit sns including katok.