title: 2017 Kurume U.S.E Cup – Singles
text: # 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 | | | | | | | | | | | | | | | |
  