In sports events, because of the large number of participants, the elimination system is often used to shorten the competition time. In this way of competition, in order to prevent high-level players from being eliminated when they meet in the preliminary round, they are divided into different groups, and these players are called "seed players". Seed players are determined according to the performance of each player between the last competition and this competition. The above method can also be used to determine the "seed" team in the team-based competition.
The top 16 players are called seed players, and they should be grouped as reasonably as possible so that these seed players and players from the same country will not meet prematurely in the competition; The top 8 seed players in doubles are also selected according to this principle.
The original meaning of seed is seed, germination. (especially in tennis) choose (a seeded player) to play against a weaker player (so that the seeded player will not be eliminated prematurely).