2018 Kurume U.S.E Cup – Singles

Laura Robson was the defending champion, but withdrew before the event started.

Ayano Shimizu won the title, defeating Abbie Myers in the final, 6–3, 7–5.

Seeds
• # 🇬🇧 Naomi Broady (semifinals)

• # 🇦🇺 Arina Rodionova (quarterfinals)

• # 🇬🇧 Katie Boulter (first round, retired)

• # 🇯🇵 Junri Namigata (first round)

• # 🇬🇧 Katy Dunne (quarterfinals)

• # 🇷🇸 Ivana Jorović (second round, retired)

• # 🇯🇵 Ayano Shimizu (champion)

• # 🇺🇸 Jacqueline Cako (first round, retired)