How are tennis players ranked? Who plays against whom?

It is divided into an upper part and a lower part.

There are eight people in the upper half.

1-8 serial number,

1/2 winners versus 3/4 winners

5/6 winners versus 7/8 winners.

Then the winner in the upper half is decided by two winners.

The second half is the same.

If it is an informal activity between friends, don't divide the seeds; If it is a formal competition or a company competition, it is still divided. For example, those who play well, the leaders who participate in the competition (remember) need seeds in the first round and give them some weak opponents.

If there are no 16 people, or more than 16 people, it will be more troublesome. It is best to gather 16 people.

If there are 12 players, divide them into 4 groups, with 3 players in each group playing a single round (that is, each player plays a game with others in the group), and decide that 4 players will play the knockout round.

18 people were divided into 6 groups, with 3 people in each group playing a single cycle and deciding 6 people; Six people were divided into two groups in a single cycle, and two people were decided in the final.

If there are 1 1, 13, 17, 19 people, the single round robin will be played directly, and 14 people will be eliminated in 7 groups, and then 7 people will play the single round robin.

Another way is to pick the biggest leader, others decide the champion, and then play overtime with the leader.