The Peruvian Primera División is the top professional football league in Peru. Established in 1912, it features clubs from across the country competing for the championship title. The league operates on a system of promotion and relegation with the Peruvian Segunda División, allowing teams to move between the two divisions based on their performance. The season typically runs from February to December, with teams playing each other in a round-robin format. The club with the most points at the end of the season is crowned the champion. Notable teams in the league include Alianza Lima, Universitario, and Sporting Cristal.