Single elimination tournament: a competition mode suitable for too many teams, which can reduce the schedule, complete the competition in a limited time, and determine the order of the competition by drawing lots, which embodies the principle of fairness and justice and is a system with a wide scope of application. The advantage is that the two sides of the game are highly antagonistic, there is no possibility of compromise, and they are not influenced or influenced by the third party. If they win or lose, they lose the right to continue the game once. It can accommodate more athletes or teams to participate in the competition, with short time and small space. The disadvantage is that most athletes or teams have few competitions, strong opportunities and poor ranking rationality.
Single round robin: all teams can meet once, and finally rank according to the points and gains and losses of each team in all competitions. If there are not many teams and the time and space are guaranteed, this kind of competition is usually adopted. The advantage is that it can accurately reflect the technical level of the players, which is conducive to learning from each other and improving together. The disadvantage is that there are too many games in the whole competition and each athlete or team.