| Singles | |
|---|---|
| 2018 Kurume U.S.E Cup | |
| Champion |  Ayano Shimizu |
| Runner-up |  Abbie Myers |
| Score | 6–3, 7–5 |
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.
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)| Semifinals | Final | ||||||||||||
| 1 | Naomi Broady | 5 | 3 | ||||||||||
| Q | Abbie Myers | 7 | 6 | ||||||||||
| Q | Abbie Myers | 3 | 5 | ||||||||||
| 7 | Ayano Shimizu | 6 | 7 | ||||||||||
 Ksenia Lykina | 63 | 0 | |||||||||||
| 7 | Ayano Shimizu | 77 | 6 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | N Broady | 6 | 6 | ||||||||||||||||||||||||
| N Hanatani | 4 | 2 | 1 | N Broady | 6 | 6 | |||||||||||||||||||||
| WC | S Oshino | 7 | 0 | WC | S Oshino | 1 | 4 | ||||||||||||||||||||
 A Sadiković | 5 | 0r | 1 | N Broady | 4 | 6 | 6 | ||||||||||||||||||||
| T Moore | 6 | 6 | 5 | K Dunne | 6 | 3 | 2 | ||||||||||||||||||||
| WC | R Kajitani | 4 | 1 | T Moore | 6 | 2 | 1 | ||||||||||||||||||||
| H Kuwata | 3 | 6 | 1 | 5 | K Dunne | 2 | 6 | 6 | |||||||||||||||||||
| 5 | K Dunne | 6 | 1 | 6 | 1 | N Broady | 5 | 3 | |||||||||||||||||||
| 3 | K Boulter | 6 | 4 | 0r | Q | A Myers | 7 | 6 | |||||||||||||||||||
| T Patterson | 3 | 6 | 0 | T Patterson | 5 | 6 | 6 | ||||||||||||||||||||
| O Tjandramulia | 6 | 2 | 6 | O Tjandramulia | 7 | 4 | 4 | ||||||||||||||||||||
| R Ushijima | 2 | 6 | 4 | T Patterson | 3 | 6 | 4 | ||||||||||||||||||||
| Q | A Myers | 5 | 77 | 77 | Q | A Myers | 6 | 2 | 6 | ||||||||||||||||||
| Q | A Nefedova | 7 | 61 | 64 | Q | A Myers | 6 | 6 | |||||||||||||||||||
| A Muhammad | 6 | 1 | A Muhammad | 3 | 1 | ||||||||||||||||||||||
| 8 | J Cako | 2 | 0r | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | I Jorović | 6 | 6 | ||||||||||||||||||||||||
| C Muramatsu | 3 | 3 | 6 | I Jorović | 0r | ||||||||||||||||||||||
| H Kaji | 6 | 6 | H Kaji | 2 | |||||||||||||||||||||||
| Q | S Hondo | 3 | 3 | H Kaji | 6 | 3 | 4 | ||||||||||||||||||||
| M Eguchi | 2 | 6 | 6 | K Lykina | 2 | 6 | 6 | ||||||||||||||||||||
| M Kobori | 6 | 3 | 0 | M Eguchi | 0 | 3 | |||||||||||||||||||||
| K Lykina | 2 | 6 | 6 | K Lykina | 6 | 6 | |||||||||||||||||||||
| 4 | J Namigata | 6 | 2 | 1 | K Lykina | 63 | 0 | ||||||||||||||||||||
| 7 | A Shimizu | 6 | 6 | 7 | A Shimizu | 77 | 6 | ||||||||||||||||||||
| S Akita | 2 | 4 | 7 | A Shimizu | 6 | 2 | 6 | ||||||||||||||||||||
| R Fujiwara | 3 | 6 | 6 | R Fujiwara | 4 | 6 | 2 | ||||||||||||||||||||
| Q | A Matsumoto | 6 | 3 | 4 | 7 | A Shimizu | 7 | 5 | 7 | ||||||||||||||||||
| E Hayashi | 1 | 2 | 2 | Ar Rodionova | 5 | 7 | 5 | ||||||||||||||||||||
 A Tere-Apisah | 6 | 6 | A Tere-Apisah | 4 | 6 | 5 | |||||||||||||||||||||
| WC | K Morisaki | 0 | 4 | 2 | Ar Rodionova | 6 | 1 | 7 | |||||||||||||||||||
| 2 | Ar Rodionova | 6 | 6 | ||||||||||||||||||||||||
Tereza Mihalíková was the defending champion but lost in the final to Vera Lapko, 3–6, 4–6.
Duan Yingying was the defending champion, but lost in the first round to Arina Rodionova.
Rika Fujiwara and Yuki Naito were the defending champions and successfully defended their title after defeating Eri Hozumi and Junri Namigata 6–1, 6–3 in the final.
Elina Svitolina was the defending champion, but withdrew before the tournament began.
Wang Qiang was the defending champion, but chose not to participate.
Han Xinyun and Ye Qiuyu were the defending champions, but they lost in the first round to Shérazad Reix and Ayano Shimizu.
Caroline Wozniacki was the two-time defending champion, but lost in the second round to Camila Giorgi.
Belinda Bencic was the defending champion, but chose to compete in Houston instead.
Belinda Bencic was the champion the last time the event was held in 2017, but chose to compete in St. Petersburg instead.
This was the first edition of the women's tournament.
Rika Fujiwara and Yuki Naito were the defending champions, but Fujiwara chose not to participate. Naito partnered Erina Hayashi but lost in the first round to Choi Ji-hee and Han Na-lae.
Katie Boulter was the defending champion, but chose not to participate.
Naomi Broady and Asia Muhammad were the defending champions, but Muhammad chose to participate at the 2019 FineMark Women's Pro Tennis Championship instead.
Ayano Shimizu was the defending champion, but lost to Sakura Hondo in the first round.
Naomi Broady and Asia Muhammad were the defending champions, but Muhammad chose not to participate. Broady partnered alongside Ayaka Okuno but lost in the first round to Emina Bektas and Tara Moore.
Nao Hibino was the defending champion, but chose not to participate.
Kimberly Birrell was the defending champion, but chose not to participate.
Priscilla Hon was the defending champion, but lost to Maddison Inglis in the semifinals.
Anna Kalinskaya was the defending champion, but chose not to participate.
Ylena In-Albon was the defending champion, but chose not to participate.