2018 Erste Bank Open – Singles
was the defending champion, but lost to Borna Ćorić in the second round.
Kevin Anderson won the title, defeating Kei Nishikori in the final, 6–3, 7–6.
This was Nishikori's ninth consecutive defeat in ATP World Tour level finals. His most recent victory came in February 2016 at Memphis.Seeds
Draw
Finals
Top half
Seeds
Qualifiers
Qualifying draw
Second qualifier
Third qualifier
Fourth qualifier