2017 Dunlop World Challenge – Men's singles

James Duckworth was the defending champion but chose not to defend his title.

Matthew Ebden won the title after defeating Calvin Hemery 7–6(7–3), 6–3 in the final.

Seeds
• # 🇯🇵 Taro Daniel (first round)

• # 🇦🇺 Matthew Ebden (champion)

• # 🇯🇵 Tatsuma Ito (quarterfinals, retired)

• # 🇯🇵 Go Soeda (second round)

• # 🇦🇺 John Millman (semifinals)

• # 🇰🇷 Kwon Soon-woo (second round)

• # 🇫🇷 Calvin Hemery (final)

• # 🇰🇷 Lee Duck-hee (quarterfinals)