2018 Cary Challenger – Singles

Kevin King was the defending champion but lost in the first round to James Duckworth.

Duckworth won the title after defeating Reilly Opelka 7–6(7–4), 6–3 in the final.

Seeds
• # 🇨🇦 Peter Polansky (first round)

• # 🇸🇪 Elias Ymer (first round)

• # Marcelo Arévalo (second round)

• # 🇺🇸 Reilly Opelka (final)

• # 🇺🇸 Bjorn Fratangelo (semifinals)

• # 🇺🇸 Kevin King (first round)

• # 🇦🇺 Alexei Popyrin (second round)

• # 🇦🇺 Maverick Banes (first round)