2019 Kurume U.S.E Cup – Singles

Ayano Shimizu was the defending champion, but lost to Sakura Hondo in the first round.

Rebecca Marino won the title, defeating Yuki Naito in the final, 6–4, 7–6(7–0).

Seeds
• # 🇬🇧 Heather Watson (quarterfinals)

• # 🇯🇵 Ayano Shimizu (first round)

• # 🇺🇸 Kristie Ahn (withdrew)

• # 🇨🇦 Rebecca Marino (champion)

• # 🇯🇵 Momoko Kobori (first round)

• # 🇺🇸 Jamie Loeb (first round)

• # 🇦🇺 Kaylah McPhee (semifinals)

• # 🇯🇵 Hiroko Kuwata (first round)