Take the rules of the World Cup as an example:
Thirty-two teams were divided into eight groups by drawing lots, and each group had four teams to compete. Each team has to play with the other three teams, and only played one game. Four teams in each group played round robin and played six games (A1-A2; a 1-a3； a 1-a4； a2-a3； a2-a4； A3-a4), each game lasts for 90 minutes, and the winning, drawing and losing scores are 3, 1 and 0 respectively.
The top two teams in each group advanced to the knockout 1/8 finals, and the *** 16 team was "top 16".
There are four teams in each group, and their ranking is determined according to the following rules:
A, the person with the highest score ranks first.
B, the group with the highest goal difference ranks first.
C, the group with the highest total number of goals ranks first.
If there are still two or more teams tied according to the above rules, compare them in the following order to determine the ranking order: (Except for all teams tied, the following rules are only formulated in tied teams. )
D. Compare the goal difference of several teams in parallel. If they are still equal, then:
E. Compare the match scores between several teams (that is, the relationship between the two teams), and the winner ranks first. If there are mutual constraints (that is, A wins B, B wins C, and C wins A), then:
F, compare the total number of goals scored by several teams in parallel. If they are still equal, then:
G the organizing Committee of the world cup will decide which team will advance in a fair way (such as play-offs and lottery). ).
The top two in each group qualify and enter the knockout stage.
In the knockout stage? The team that scored more goals in 90 minutes (including stoppage time) won. If both sides can't decide the winner within 90 minutes (including overtime), then the first half and the second half will play 15 minutes overtime respectively. In the overtime stage, if the two teams are still tied, it will be decided by the penalty of the players from both sides.
In principle, the penalty kick is that each side kicks five balls. If it is still a draw, both sides will play a ball and the winner will win. If there is still no tie, continue to punish the penalty, and both sides will kick another ball until the tie is broken! It can also be seen from here that everyone will tell the victory or defeat of football anyway, because only one World Cup is prepared for each World Cup!
16 knockout stage is adopted, and the knockout stage is arranged as follows.
1/8 finally
Group A first pair Group B second = winner 1
Group B first pair Group A second = winner 2
Group c first pair group d second = third place.
Group d first pair group c second = fourth place.
Group e first pair group f second = fifth place.
Group f first pair group e second = sixth place.
Group g first pair group h second = 7th place.
Group H first pair Group G second = eighth place
The winning eight teams entered the final of 1/4, the so-called "Top 8".
1/4 finally
Winner 1 vs Winner 3= Winner A.
Winner 2 versus winner 4= winner B.
Winner 5 pairs Winner 7= Winner C.
Winner 6 pairs Winner 8= Winner D.
1/4 The four winning teams in the finals entered the "semi-finals".
semifinal
Winner a versus winner c
Winner b versus winner d
The two teams that won the semi-final entered the final, and the two teams that lost competed for the third place.
Extended data:
Semi-final: In a narrow sense, the semi-final is a competition in which four units are divided into two groups and the winner (the top two) enters the final. The semi-final in a broad sense refers to any knockout competition aimed at competing for the final places. Only if you win the semi-final can you advance to the final.
For example, the "Super Girl" semi-final, although called semi-final, is actually a five-in-four knockout. Another example is the Toulon Cup. Although there was a competition before the final, it could not be called "Toulon Cup Semifinal" because of its round robin nature.
There can be one, two or more semi-finals. Semifinals are not equal to semi-finals, and semi-finals are not equal to semi-finals.
The top eight: As the name implies, the top eight compete for one of the top four, that is, for the top four. * * * Divided into four pairs of four games, each member only plays one game, and the winner becomes the top four.
After the semi-finals come out, take part in the semi-finals. They were divided into two teams to play two games. Each member only played one game. Two winners played another game for the champion, and the other two losers had to play another game for the third place.
8: 1 final: 16 teams played against each other, and the eight teams that won were the top eight;
1 Final: Eight teams played against each other, and the winning four teams were the top four;
Semi-final: 4 teams play against each other, and the winning 2 teams enter the final;
Three or four finalists: the two teams that lost in the semi-final competed for the third place;
Final: The two teams that won the semi-final competed for the championship.
References:
Baidu Encyclopedia-Semifinal