soccer
The home and away system means that in a football match, two teams play a game at their own home, and the interval between the two games is usually one week. Finally, the total number of goals scored by both sides determines the outcome of the game.
This kind of competition is common in some international and domestic large-scale events. The reason for setting up the home and away game system is to ensure the fairness of the game. Well-known home and away games, such as the Champions League and the UEFA Cup, are usually decided in the third-party stadium (neutral stadium).
Extended data
Home and away games are mainly distinguished by uniforms.
Both the club and the national team have home and away uniforms. According to the rules of this World Cup, the jerseys, pants and socks of the two teams must use different colors. If the visiting team's main jerseys, pants and socks are the same color as the home team, it is necessary to change to another set of visiting team uniforms. It's easy to see the away team at home at this time.
If there is no conflict between the home uniforms of the two teams, they may all wear home uniforms for the game, so they can't be seen from the uniforms. However, FIFA will put the team's home game first when arranging the schedule, so it can also distinguish the home and away games from the way of broadcasting the scores.
If the club competition is a double round robin system, then each team will turn to the home and away games. In addition to looking at uniforms, you can see the venue directly.
Baidu encyclopedia-home and away games