The Costa Rican Primera División is the top professional football league in Costa Rica. Established in 1921, it features 12 teams competing for the championship title. The league operates on a system of promotion and relegation with the Liga de Ascenso, the second tier of Costa Rican football. Matches are typically held from January to May and then from July to November, divided into two tournaments each year. The league is known for its passionate fan base and has produced several players who have gone on to represent the Costa Rican national team in international competitions.