2019 Santaizi ATP Challenger – Singles

Yuki Bhambri was the defending champion but chose not to defend his title.

Dennis Novak won the title after defeating Sergiy Stakhovsky 6–2, 6–4 in the final.

Seeds
All seeds receive a bye into the second round. • # Lloyd Harris (third round)

• # 🇷🇺 Evgeny Donskoy (second round)

• # 🇺🇦 Sergiy Stakhovsky (final)

• # 🇸🇰 Lukáš Lacko (third round)

• # 🇩🇪 Matthias Bachinger (second round)

• # 🇵🇱 Kamil Majchrzak (third round)

• # Jason Jung (quarterfinals)

• # 🇨🇾 Marcos Baghdatis (second round, retired)

• # 🇮🇳 Ramkumar Ramanathan (quarterfinals)

• # 🇯🇵 Tatsuma Ito (quarterfinals)

• # 🇦🇹 Dennis Novak (champion)

• # 🇦🇺 James Duckworth (third round)

• # 🇰🇷 Kwon Soon-woo (semifinals)

• # 🇯🇵 Hiroki Moriya (second round)

• # 🇯🇵 Yūichi Sugita (quarterfinals)

• # 🇫🇷 Maxime Janvier (third round)