since their foundation if heimer has participated mainly in the middle divisions of the swedish football league system. their best period was in the 1920s including the years 1925 to 1928 when they played in division 2 västsvenska which was then the second tier of swedish football. in 1941 they played a division 2 promotion qualification match with skogen before 4,027 spectators but their all time attendance record was the 4,178 people who attended a friendly match against ifk norrkoping in 1948.