2016 Citi Open – Men's Singles
was the defending champion, but chose not to participate this year.
Second-seeded Gaël Monfils won the title, defeating Ivo Karlović in the final: 5–7, 7–6, 6–4.Seeds
All seeds receive a bye into the second round.Draw
Finals
Section 2
Section 3
Section 4
Seeds
The top four seeds received a bye into the qualifying competition.Qualifiers
Qualifying draw
Second qualifier
Third qualifier