Kei Nishikori was the four-time defending champion, but chose to compete in Buenos Aires instead. Ryan Harrison won his first ATP World Tour singles title, defeating Nikoloz Basilashvili in the final, 6–1, 6–4. This was the first time in the tournament's 41-year history that no seeded players reached the semifinals. It was also the first ATP tour level event where this happened since 2013 at Nice. Seeds The top four seeds receive a bye into the second round. Draw Finals Top half Bottom half Qualifying Seeds Qualifiers Lucky loser Benjamin Becker Qualifying draw First qualifier Second qualifier Third qualifier Fourth qualifier References Main Draw Qualifying Draw 2017 ATP World Tour 2017 Men's Singles