After a long time in lower classes Hartberg was first promoted to the Landesliga, the highest class in Styrian football, in 1978. 1978/79 the club won the Landesliga, but failed in the relegation tournament for promotion. A year later the club reached the quarterfinals of the Austrian Cup. 1994/95 the club became champion again and was promoted to the Regionalliga Mitte (3rd division). 2006 the team became champion of the Regionalliga Mitte and was promoted to the Ersten Liga (2nd division). Due to reforms of the league Hartberg was relegated the same season. On the last day of the season 2008–2009, TSV Hartberg finished in first poisition of the Austrian third division and was promoted to the 2009–2010 second division where they play at the moment.