2019 Hall of Fame Open – Singles

Steve Johnson was the defending champion, but lost in the first round to Christopher Eubanks.

John Isner won a record fourth Newport title, defeating Alexander Bublik in the final, 7–6(7–2), 6–3.

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

• #🇫🇷 Adrian Mannarino (second round)

• #🇦🇺 Jordan Thompson (second round)

• #🇫🇷 Ugo Humbert (semifinals)

• #🇺🇸 Steve Johnson (first round)

• # Ivo Karlović (first round)

• #🇰🇿 Alexander Bublik (final)

• #🇺🇸 Bradley Klahn (first round)

Seeds
• # 🇺🇸 Bjorn Fratangelo (qualifying competition)

• # 🇦🇺 Alex Bolt (qualified)

• # 🇮🇳 Ramkumar Ramanathan (qualified)

• # 🇯🇵 Tatsuma Ito (first round)

• # 🇫🇷 Quentin Halys (first round)

• # 🇷🇸 Viktor Troicki (qualified)

• # 🇺🇸 Noah Rubin (qualifying competition)

• # 🇺🇸 Mitchell Krueger (first round)

Qualifiers
• # 🇷🇸 Viktor Troicki

• # 🇦🇺 Alex Bolt

• # 🇮🇳 Ramkumar Ramanathan

• # 🇺🇸 Tim Smyczek