Idrottsföreningen Kamraterna Göteborg, commonly known as IFK Göteborg, is a Swedish professional football club based in Gothenburg. Founded on 4 October 1904, it is the only club in the Nordic countries that has won a pan-European competition, as the club won the UEFA Cup in 1982 and 1987. They have won 18 Swedish championship titles, second most in Swedish football after Malmö FF. IFK is affiliated with Göteborgs Fotbollförbund and play their home games at Gamla Ullevi. IFK Göteborg play in Allsvenskan as of the 2018 season, 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.