2018 BB&T Atlanta Open – Singles

John Isner was the defending champion and successfully defended his title, defeating Ryan Harrison in a rematch of the 2017 final, 5–7, 6–3, 6–4.

Seeds
The top four seeds receive a bye into the second round. • #🇺🇸 John Isner (champion)

• #🇦🇺 Nick Kyrgios (quarterfinals, retired)

• #🇰🇷 Chung Hyeon (quarterfinals)

• #🇦🇺 Matthew Ebden (semifinals)

• #🇺🇸 Frances Tiafoe (second round)

• #🇫🇷 Jérémy Chardy (second round)

• #🇩🇪 Mischa Zverev (quarterfinals)

• #🇺🇸 Ryan Harrison (final)

Seeds
• # 🇺🇸 Denis Kudla (qualifying competition)

• # 🇵🇱 Hubert Hurkacz (qualifying competition, lucky loser)

• # Jason Jung (qualifying competition)

• # 🇦🇺 Bernard Tomic (first round)

• # 🇺🇸 Noah Rubin (qualified)

• # 🇪🇬 Mohamed Safwat (first round)

• # 🇦🇺 Thanasi Kokkinakis (qualified)

• # 🇦🇺 Alex Bolt (qualified)

Qualifiers
• # 🇦🇺 Alex Bolt

• # 🇦🇺 Thanasi Kokkinakis

• # 🇺🇸 Noah Rubin

• # 🇮🇳 Prajnesh Gunneswaran

Lucky loser

 * 1) 🇵🇱 Hubert Hurkacz