# 2017 Kurume U.S.E Cup – Singles

Kyōka Okamura was the defending champion, but lost in the second round to Miharu Imanishi.
Laura Robson won the title, defeating Katie Boulter in an all-British final, 6–3, 6–4.

## Seeds

* Ksenia Lykina (quarterfinals)
* Riko Sawayanagi (quarterfinals)
* Shiho Akita (first round)
* Laura Robson (champion)
* Junri Namigata (quarterfinals; retired)
* Kyōka Okamura (second round)
* Hiroko Kuwata (first round)
* Katy Dunne (second round)

## 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 | Semifinals | Final | Final | Final | Final |
| | Katie Boulter | 4 | 6 | 6 | | | | |
| | Ayano Shimizu | 6 | 3 | 4 | | | | |
| | Ayano Shimizu | 6 | 3 | 4 | | Katie Boulter | 3 | 4 |
| | | | | | 4 | Laura Robson | 6 | 6 |
| 4 | Laura Robson | 7 | 7$^7$ | | 4 | Laura Robson | 6 | 6 |
| Q | Erina Hayashi | 5 | 6$^2$ | | | | | |

### 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 | K Lykina | 6 | 6 | | | | | | | | | | | | | | | |
| | M Ayukawa | 1 | 2 | | 1 | K Lykina | 6 | 6 | | | | | | | | | | |
| | M Ozeki | 3 | 3 | | | R Ushijima | 2 | 4 | | | | | | | | | | |
| | R Ushijima | 6 | 6 | | | | | | | 1 | K Lykina | 6 | 2 | 4 | | | | |
| | K Boulter | 6 | 6 | | | | | | | | K Boulter | 1 | 6 | 6 | | | | |
| WC | H Ogata | 2 | 4 | | | K Boulter | 5 | 6 | 6 | | | | | | | | | |
| | Y Tanaka | 5 | 1 | | 8 | K Dunne | 7 | 3 | 1 | | | | | | | | | |
| 8 | K Dunne | 7 | 6 | | | | | | | | | | | | K Boulter | 4 | 6 | 6 |
| 3 | S Akita | 7 | 6$^3$ | 3 | | | | | | | | | | | A Shimizu | 6 | 3 | 4 |
| | A Shimizu | 5 | 7$^7$ | 6 | | A Shimizu | 6 | 6 | | | | | | | | | | |
| | H Arakawa | 6 | 0 | 2 | Q | N Hanatani | 2 | 1 | | | | | | | | | | |
| Q | N Hanatani | 4 | 6 | 6 | | | | | | | A Shimizu | 6 | 0 | | | | | |
| Q | A Miyamoto | 6 | 6 | | | | | | | 5 | J Namigata | 2 | 0$^r$ | | | | | |
| WC | S Oshino | 0 | 0 | | Q | A Miyamoto | 2 | 3 | | | | | | | | | | |
| | T Patterson | 4 | 3 | | 5 | J Namigata | 6 | 6 | | | | | | | | | | |
| 5 | J Namigata | 6 | 6 | | | | | | | | | | | | | | | |

### 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 | K Okamura | 6 | 6 | | | | | | | | | | | | | | | |
| PR | K Birrell | 4 | 1 | | 6 | K Okamura | 3 | 2 | | | | | | | | | | |
| | J Boualem | 6 | 0 | 3 | | M Imanishi | 6 | 6 | | | | | | | | | | |
| | M Imanishi | 2 | 6 | 6 | | | | | | | M Imanishi | 6 | 0 | 5 | | | | |
| | M Minokoshi | 2 | 5 | | | | | | | 4 | L Robson | 4 | 6 | 7 | | | | |
| Q | R Fujiwara | 6 | 7 | | Q | R Fujiwara | 1 | 3 | | | | | | | | | | |
| | M Kobori | 3 | 5 | | 4 | L Robson | 6 | 6 | | | | | | | | | | |
| 4 | L Robson | 6 | 7 | | | | | | | | | | | | 4 | L Robson | 7 | 7$^7$ |
| 7 | H Kuwata | 6 | 4 | 1 | | | | | | | | | | | Q | E Hayashi | 5 | 6$^2$ |
| WC | S Baba | 2 | 6 | 6 | WC | S Baba | 6 | 4 | 4 | | | | | | | | | |
| | A Okuno | 6$^2$ | 0 | | Q | E Hayashi | 2 | 6 | 6 | | | | | | | | | |
| Q | E Hayashi | 7$^7$ | 6 | | | | | | | Q | E Hayashi | 6 | 1 | 6 | | | | |
| | E Sema | 2 | 7 | 1 | | | | | | 2 | R Sawayanagi | 1 | 6 | 3 | | | | |
| | O Tjandramulia | 6 | 5 | 6 | | O Tjandramulia | 6 | 0 | 3 | | | | | | | | | |
| WC | M Miyahara | 3 | 3 | | 2 | R Sawayanagi | 4 | 6 | 6 | | | | | | | | | |
| 2 | R Sawayanagi | 6 | 6 | | | | | | | | | | | | | | | |