Dominic Thiem was the defending champion, but chose to compete in Rotterdam instead. Alexandr Dolgopolov won the title, defeating Kei Nishikori in the final, 7–6(7–4), 6–4. Seeds The top four seeds receive a bye into the second round. Draw Finals Top half Bottom half Qualifying Seeds Qualifiers Qualifying draw First qualifier Second qualifier Third qualifier Fourth qualifier External links Main draw Qualifying draw 2017 ATP World Tour 2017 Singles