See main article: 2013 Gerry Weber Open. Tommy Haas was the defending champion but was knocked out by top seed Roger Federer in the semifinals.Federer won 6–7, 6–3, 6–4 against Mikhail Youzhny to claim a record sixth title and his first since 2008.[1]
The top four seeds received a bye into the second round.
The top three seeds received byes into the second round.
