League competitions are organized events where teams or individuals compete against each other over a set period, usually in a round-robin format. Each team plays multiple matches, earning points based on their performance. The goal is to accumulate the highest number of points to secure a top position in the league standings. At the end of the competition, the top teams may qualify for playoffs or championships, while others may face relegation to a lower division. Popular examples of league competitions include the English Premier League in football and the NBA in basketball.