Joachim Johansson defeated Ivan Ljubičić 7–5, 6–4 to win the 2005 Open 13 singles competition. Dominik Hrbatý was the defending champion.
Seeds
Guillermo Coria (first round) David Nalbandian (second round) Joachim Johansson (champion) Nikolay Davydenko (first round) Dominik Hrbatý (first round) Feliciano López (semifinals) Nicolas Kiefer (first round) Ivan Ljubičić (final)
Draw
Finals
Top half
Bottom half
External links 2005 Open 13 Singles draw 2005 Open 13 Qualifying draw