2018 Santaizi ATP Challenger – Singles

Lu Yen-hsun was the defending champion but chose not to defend his title.

Yuki Bhambri won the title after defeating Ramkumar Ramanathan 6–3, 6–4 in the final.

Seeds
• # 🇦🇺 Matthew Ebden (second round)

• # 🇷🇺 Evgeny Donskoy (quarterfinals)

• # 🇮🇱 Dudi Sela (quarterfinals)

• # 🇮🇳 Yuki Bhambri (champion)

• # 🇫🇷 Quentin Halys (first round)

• # 🇮🇳 Ramkumar Ramanathan (final)

• # 🇯🇵 Go Soeda (semifinals)

• # 🇯🇵 Tatsuma Ito (semifinals)