Soccer leagues are organized competitions where teams play against each other to earn points and determine a champion. These leagues can vary in size and level, ranging from local amateur leagues to professional leagues like the English Premier League or Major League Soccer. Teams typically play a set number of matches throughout a season, with points awarded for wins and draws. In addition to the regular season, many leagues have playoffs or cup competitions, where the top teams compete for additional trophies. Leagues often have promotion and relegation systems, allowing successful teams to move up to higher divisions while less successful teams may drop to lower ones.