2018 Hall of Fame Tennis Championships – Singles

John Isner was the defending champion, but withdrew before the tournament began.

Steve Johnson won his fourth career ATP World Tour title, defeating Ramkumar Ramanathan in the final, 7–5, 3–6, 6–2. Ramanathan was making his first appearance in a World Tour final.

Seeds
The top four seeds receive a bye into the second round. • #🇫🇷 Adrian Mannarino (quarterfinals)

• #🇩🇪 Mischa Zverev (second round)

• #🇺🇸 Steve Johnson (champion)

• #🇦🇺 Matthew Ebden (second round)

• #🇺🇸 Ryan Harrison (first round, retired)

• #🇱🇺 Gilles Müller (second round)

• #🇦🇺 Alex de Minaur (first round)

• #🇺🇸 Denis Kudla (second round)

Seeds
• # Marcelo Arévalo (first round)

• # 🇩🇪 Matthias Bachinger (qualifying competition)

• # 🇮🇳 Prajnesh Gunneswaran (first round)

• # 🇪🇬 Mohamed Safwat (first round)

• # 🇦🇺 Bernard Tomic (qualified)

• # 🇩🇴 Víctor Estrella Burgos (qualified)

• # 🇺🇸 Evan King (first round)

• # 🇦🇺 Alex Bolt (qualified)

Qualifiers
• # 🇩🇴 Víctor Estrella Burgos

• # 🇺🇸 JC Aragone

• # 🇦🇺 Bernard Tomic

• # 🇦🇺 Alex Bolt