# 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)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Naomi Broady | 5 | 3 | | | | |
| Q | Abbie Myers | 7 | 6 | | | | |
| Q | Abbie Myers | 7 | 6 | Q | Abbie Myers | 3 | 5 |
| | | | | 7 | Ayano Shimizu | 6 | 7 |
| | Ksenia Lykina | 6$^3$ | 0 | 7 | Ayano Shimizu | 6 | 7 |
| 7 | Ayano Shimizu | 7$^7$ | 6 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | 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 | 0$^r$ | | | | | | | 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 | 0$^r$ | | | | | | | | | | | 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 | 7$^7$ | 7$^7$ | | | | | | Q | A Myers | 6 | 2 | 6 | | | | |
| Q | A Nefedova | 7 | 6$^1$ | 6$^4$ | Q | A Myers | 6 | 6 | | | | | | | | | | |
| | A Muhammad | 6 | 1 | | | A Muhammad | 3 | 1 | | | | | | | | | | |
| 8 | J Cako | 2 | 0$^r$ | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | I Jorović | 6 | 6 | | | | | | | | | | | | | | | |
| | C Muramatsu | 3 | 3 | | 6 | I Jorović | 0$^r$ | | | | | | | | | | | |
| | 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 | 6$^3$ | 0 |
| 7 | A Shimizu | 6 | 6 | | | | | | | | | | | | 7 | A Shimizu | 7$^7$ | 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 | | | | | | | | | | | | | | | |