The championship that takes place in October for professional baseball is the World Series. This prestigious event determines the champion of Major League Baseball (MLB) and features the champions from the American and National Leagues. The series typically consists of up to seven games, with the team that wins four games being crowned the champion. The World Series is a culmination of the postseason, showcasing top teams and players, and it garners significant national attention and fanfare, making it a highlight of the sports calendar.