2015 Hall of Fame Tennis Championships – Singles

Lleyton Hewitt was the defending champion, but chose to participate in the Davis Cup quarterfinals instead. Rajeev Ram won the title, defeating Ivo Karlović in the final, 7–6(7–5), 5–7, 7–6(7–2).

Seeds
• #🇺🇸 John Isner (first round)

• # Ivo Karlović (final)

• #🇦🇺 Bernard Tomic (first round)

• #🇺🇸 Jack Sock (semifinals)

• #🇫🇷 Adrian Mannarino (quarterfinals)

• #🇺🇸 Sam Querrey (second round)

• #🇺🇸 Steve Johnson (second round)

• #🇺🇸 Tim Smyczek (first round)

Seeds
• # 🇦🇺 Matthew Ebden (qualified)

• # 🇬🇧 Brydan Klein (qualifying competition)

• # 🇦🇺 Luke Saville (qualifying competition)

• # 🇨🇿 Jan Hernych (qualified)

• # 🇺🇸 Alexander Sarkissian (first round)

• # Jason Jung (qualifying competition)

• # 🇦🇺 Alex Bolt (second round)

• # Frederik Nielsen (first round)

Qualifiers
• # 🇦🇺 Matthew Ebden

• # Adrien Bossel

• # Ante Pavić

• # 🇨🇿 Jan Hernych