Allsvenskan (; , also known as Fotbollsallsvenskan, ) is a Swedish professional league for men's association football clubs. It was founded in 1924 and is the top tier of the Swedish football league system, operating on a system of promotion and relegation with Superettan. Seasons run from late March or early April to the beginning of November, with the 16 clubs all meeting each other twice, resulting in a 30-match season, for a total of 240 matches league-wide. Allsvenskan is ranked 23rd in the UEFA coefficients of leagues based on performances in European competitions over the last five years. Allsvenskan is currently ranked third highest of the leagues in Scandinavia after Norway and Denmark. The current champions are BK Häcken, who won the title in the 2022 season. "The Big Three" in Swedish football and Allsvenskan is used to refer to AIK, IFK Göteborg, and Malmö FF. They are generally considered to be the three largest clubs in Sweden from the three largest cities (Stockholm, Gothenburg, and Malmö). The three teams with most Swedish championships are Malmö FF (22), IFK Göteborg (18) and IFK Norrköping (13). . Unlike other European football leagues, the Allsvenskan did not experience an interruption in play during World War II due to Swedish neutrality. History Allsvenskan started in the 1924–25 Allsvenskan season and the first winner was GAIS. The one-league twelve team Allsvenskan replaced the Svenska Serien, consisting of a southern and northern group that was held before. In 1931, the league started to decide the Swedish football champions. In the early years, Norrland and Gotland teams were not allowed to play on higher levels in the league system, which was gradually changed to include the Norrland and Gotland teams on higher levels. For the 1959 Allsvenskan, the season start was changed from autumn to spring to be played in one calendar year. In 1973, it was expanded to contain 14 teams. In the 1970s, Malmö FF, under the lead of Spanish Antonio Durán and later English Bob Houghton, won five Allsvenskan and managed to proceed to the 1979 European Cup Final, which they lost to Nottingham Forest. From the 1982 season, the league introduced a play-off to determine the Swedish football champions. In the late 1980s, Malmö FF were dominant, winning the league five times in a row, but only two Swedish championships. The 1990 season saw the introduction of three points per win.