2017 International Challenger Zhangjiagang – Singles

This was the first edition of the tournament.

Jason Jung won the title after defeating Zhang Ze 6–4, 2–6, 6–4 in the final.

Seeds
• # Henri Laaksonen (first round, retired)

• # 🇯🇵 Go Soeda (semifinals)

• # 🇰🇷 Lee Duck-hee (first round)

• # 🇯🇵 Yasutaka Uchiyama (quarterfinals)

• # 🇯🇵 Hiroki Moriya (semifinals)

• # 🇪🇬 Mohamed Safwat (quarterfinals)

• # 🇨🇳 Wu Di (quarterfinals)

• # Chen Ti (first round)