HNK Hajduk Split, an association football club based in Split, was founded in February 1911. For the first nine years of their existence, there was no league football, so matches were arranged on a friendly level, supplemented by cup competitions organised at local and national level except during the World War I. In 1920, Hajduk played in the first championship of Split football subassociation. From 1923, Hajduk participated in first club competition on a national level for clubs from Kingdom of Yugoslavia organized in various cup and league formats. They won two titles, in 1927 and 1929.