2017 Ricoh Open – Men's Singles
was the two-time defending champion, but lost in the second round to Julien Benneteau.
Gilles Müller won the title, defeating Ivo Karlović in the final, 7–6, 7–6.Seeds
The top four seeds receive a bye into the second round.Draw
Finals
Seeds
Qualifiers
Qualifying draw
Second qualifier
Third qualifier