Since 2009 it has been part of the World Tour 500 Series of the ATP Tour. It became an event on the Grand Prix tennis circuit in 1977, when Björn Borg won the title, and stayed until 1989. The tournament was created in 1970 by Roger Brennwald and originally featured mainly Swiss top players.
The Swiss Indoors is a professional men's tennis tournament played on indoor hard courts at the St.