It was the 42nd edition of the event known that year as the Allianz Suisse Open Gstaad and was part of the ATP World Tour 250 series of the 2009 ATP World Tour.
2009 | Australian Open | French Open | Open University | open source | U.S. Open | 2009 in music | Credit Suisse | Wacken Open Air | Avatar (2009 film) | American Recovery and Reinvestment Act of 2009 | New Jersey gubernatorial election, 2009 | Gstaad | Eurovision Song Contest 2009 | The Open Championship | U.S. Open (tennis) | Orchestre de la Suisse Romande | Allianz | 2009 Summer Universiade | All England Open Badminton Championships | 2009 UCI Track Cycling World Championships | 2009 NFL season | U.S. Open (golf) | Open Source | Open-pit mining | Allianz Arena | 2009 World Championships in Athletics | 2006 Australian Open | Open Software Foundation | Indira Gandhi National Open University |