Rafael Nadal was the defending champion but withdrew with a knee injury before the tournament began. Nikoloz Basilashvili won the title, defeating Juan Martín del Potro in the final, 6–4, 6–4. Seeds Draw Finals Top half Bottom half Qualifying Seeds Qualifiers Lucky loser Qualifying draw First qualifier Second qualifier Third qualifier Fourth qualifier References External links Main draw Qualifying draw 2018 ATP World Tour 2018 China Open (tennis)