IFK Göteborg play in the highest Swedish league, Allsvenskan, where they have played for the majority of their history. They have played in the Swedish first tier continuously since 1977, which is the longest ongoing top-flight tenure in Sweden. The club won its first Swedish championship in 1908, four years after the founding, and has won at least one championship title in every decade since, except the 1920s, 1970s and 2010s. IFK Göteborg's most successful period was from 1982 to 1996, when the team prospered in European football and won 10 out of 15 Swedish championships.