The CHI Liga de Primera is the top-tier professional football league in Chile, widely known as the Chilean Primera División. It represents the highest level of club football in the country and is organized by the National Professional Football Association (ANFP), headquartered in Santiago. The league operates on an annual system, traditionally split into two separate tournaments—the Apertura (Opening) and Clausura (Closing)—each crowning its own champion, though the format has seen variations including a single annual competition. The regular season typically involves all teams playing each other in a round-robin format, with the top teams advancing to playoff stages or qualifying for continental competitions. The league is characterized by intense rivalries, such as the Superclásico between Colo-Colo and Universidad de Chile, and has been a historic producer of world-class talent. Its influence extends throughout South America, with Chilean clubs regularly competing in the Copa Libertadores. The most coveted honor is the league championship trophy, with individual accolades including the league's top scorer award and the prize for the best player of the season.