| 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. [1]
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 | ||||||||||||||||||||||||
Vera Lapko won the title, defeating defending champion Tereza Mihalíková in the final, 6–3, 6–4.
Elina Svitolina was the defending champion, but withdrew before the tournament began.
Wang Qiang was the defending champion, but chose not to participate.
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.
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.
Destanee Aiava and Naiktha Bains were the defending champions but Bains chose not to participate. Aiava partnered alongside Ella Simmons, but lost in the first round to Kyōka Okamura and Ayano Shimizu.
Emina Bektas and Lina Glushko were the defending champions but chose not to participate.
Destanee Aiava and Maddison Inglis were the defending champions but chose to participate with different partners. Aiava partnered alongside Petra Hule but lost in the first round to Paige Hourigan and Erika Sema.
Taylah Preston was the defending champion but chose to compete in Hua Hin instead.