João Sousa was the defending champion, but to compete at the 2013 Guimarães Open instead.
2013 ATP Challenger Tour | 2013 | Australian Open | French Open | 2013 ATP World Tour | Open University | open source | 2013 Southeast Asian Games | 2013 ITF Women's Circuit | U.S. Open | 2013 WTA Tour | 2013 Island Games | Wacken Open Air | Eurovision Song Contest 2013 | The Open Championship | 2013 Mediterranean Games | U.S. Open (tennis) | Big East Conference (1979–2013) | 2013 World Aquatics Championships | 2013–14 figure skating season | All England Open Badminton Championships | U.S. Open (golf) | Open Source | Open-pit mining | Miss Universe 2013 | Malaysian general election, 2013 | Australian federal election, 2013 | 2006 Australian Open | Open Software Foundation | Indira Gandhi National Open University |