The Argentine Primera División

The Argentine Primera División, often referred to through the Liga Profesional de Fútbol structure, is the top tier of Argentine football. It is contested annually by clubs from across Argentina, with many of the historic major clubs based in or near Buenos Aires. The competition sits under the authority of the Argentine Football Association, with promotion and relegation connecting the Primera División to the Primera Nacional, the second tier.

The first recognised championship was played in 1891, making it the oldest organised league competition in South America and one of the oldest in the world. Argentine football turned professional in 1931, and the Argentine Football Association recognises both amateur-era and professional-era champions in clubs' overall title totals. The league has changed format many times across its history, with multiple recent restructurings introducing and removing tournament splits, playoffs, and other adjustments.

As of the 2026 season, the format divides the year into two main tournaments — the Apertura, played in the first half of the year, and the Clausura, played in the second half. Each tournament features 30 clubs split into two zones of 15. Clubs play a regular phase before the top eight teams from each zone advance to a knockout stage, starting with the last 16, to decide the tournament champion.

This makes the Argentine league one of the most changeable formats in major world football. Argentina has rotated between single-table seasons, Apertura and Clausura splits, two-champions-per-year structures, three-tournament systems, and various playoff models across the modern era. Because the format changes regularly, it is best understood by checking the rules for the specific season being followed. The Big Five clubs, the Superclásico rivalry, and the league's strong link with Buenos Aires remain defining features across most format changes.

The Argentine Primera División is unusual because relegation is not decided only by a standard single-season league table. As of 2026, two clubs are relegated to the Primera Nacional, with one place decided by the lowest points-per-game average across multiple recent seasons and another decided by the lowest position in the annual table. The exact rules have changed repeatedly as the league size and tournament format have shifted.

The averaged system was originally introduced in 1983 and has long been one of the most controversial features of Argentine football. It was partly designed to reduce the impact of a single bad season, but it can make relegation battles difficult for new viewers to follow. River Plate's relegation in 2011 — the only time the club has dropped out of the top flight — remains the most famous example of a major club being caught by the system.

Argentine clubs qualify for the Copa Libertadores through a mix of domestic routes. For the current structure, those routes include the Apertura champion, the Clausura champion, the Copa Argentina winner, and the best-placed clubs in the annual table that have not already qualified. The annual table is especially important because it brings together results from the regular phases of the year's domestic tournaments.

The Copa Sudamericana places usually go to the next-best Argentine clubs not already in the Copa Libertadores. The Argentine Football Association can adjust the exact allocation and reordering rules from season to season, especially if a domestic champion has already qualified through another route. Argentine clubs have a strong record in South American competition — Independiente have won the Copa Libertadores a record seven times, while Boca Juniors and River Plate have won it six and four times respectively.

The first recognised Argentine championship was organised in 1891, originally involving clubs with strong British expatriate links in Buenos Aires. Saint Andrew's, founded by Scottish immigrants, won that first title. The Argentine Football Association was founded in 1893 by Alexander Watson Hutton and is the oldest football association in South America. The competition expanded across the early 20th century as football grew across Argentina, and the Big Five clubs — River Plate, Boca Juniors, Independiente, San Lorenzo, and Racing Club — emerged as the major forces.

Argentine football turned professional in 1931 after a period of conflict over player payments and club organisation, with River Plate winning the first professional league title. Amateur-era titles are still recognised in clubs' overall totals. Across the post-war decades, Argentine clubs became among the most successful in South American football, while clubs beyond the Big Five — including Estudiantes, Vélez Sarsfield, Rosario Central and Newell's Old Boys — helped broaden the league's identity outside the traditional Buenos Aires giants. The Primera División format has changed many times in the modern era, but its mixture of historic clubs, intense rivalries and elite player development has remained constant.