2018 Sydney International – Men's Singles
was the defending champion, but lost in the quarterfinals to Benoît Paire.
Daniil Medvedev won his first ATP title, defeating Alex de Minaur in the final, 1–6, 6–4, 7–5.Seeds
The top four seeds receive a bye into the second round.Draw
Finals
Seeds
Qualifiers
Qualifying draw
Second qualifier
Third qualifier