A "League System" is a hierarchical structure used in various sports, where teams compete in a series of divisions or tiers. Each league typically consists of multiple teams that play against each other, earning points based on their performance. The teams are ranked according to their points, with the top teams often promoted to a higher division and the bottom teams relegated to a lower one. This system encourages competition and allows teams to progress based on their success. Popular examples of league systems include the English Premier League and Major League Baseball. The structure helps maintain a dynamic and engaging environment for both players and fans.