# 2017 Korea Open – Singles

Lara Arruabarrena was the defending champion, but lost in the first round to Ekaterina Alexandrova.
Jeļena Ostapenko won the title, defeating Beatriz Haddad Maia in the final, 6–7$^{(5–7)}$, 6–1, 6–4.

## Seeds

* Jeļena Ostapenko (champion)
* Kiki Bertens (first round)
* Kristýna Plíšková (first round)
* Sorana Cîrstea (quarterfinals)
* Irina-Camelia Begu (second round)
* Tatjana Maria (first round)
* Lara Arruabarrena (first round)
* Christina McHale (first 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 | Final |
| 1 | Jeļena Ostapenko | 3 | 6 | 6 | | | | | |
| Q | Luksika Kumkhum | 6 | 1 | 3 | | | | | |
| Q | Luksika Kumkhum | 6 | 1 | 3 | 1 | Jeļena Ostapenko | 6$^5$ | 6 | 6 |
| | | | | | | Beatriz Haddad Maia | 7$^7$ | 1 | 4 |
| | Beatriz Haddad Maia | 6 | 7$^9$ | | | Beatriz Haddad Maia | 7$^7$ | 1 | 4 |
| | Richèl Hogenkamp | 1 | 6$^7$ | | | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | J Ostapenko | 7$^8$ | 6 | | | | | | | | | | | | | | | |
| | J Larsson | 6$^6$ | 1 | | 1 | J Ostapenko | 6 | 6 | | | | | | | | | | |
| | N Hibino | 6 | 6 | | | N Hibino | 2 | 2 | | | | | | | | | | |
| | K-c Chang | 2 | 4 | | | | | | | 1 | J Ostapenko | 6 | 6 | | | | | |
| | V Cepede Royg | 6 | 6 | | | | | | | | V Cepede Royg | 3 | 1 | | | | | |
| Q | P Plipuech | 3 | 2 | | | V Cepede Royg | 4 | 6 | 6 | | | | | | | | | |
| | K Ahn | 7 | 7 | | | K Ahn | 6 | 4 | 3 | | | | | | | | | |
| 6 | T Maria | 5 | 5 | | | | | | | | | | | 1 | J Ostapenko | 3 | 6 | 6 |
| 4 | S Cîrstea | 6 | 6 | | | | | | | | | | | Q | L Kumkhum | 6 | 1 | 3 |
| PR | M Eguchi | 1 | 3 | | 4 | S Cîrstea | 6 | 6 | | | | | | | | | | |
| WC | S-j Jang | 3 | 5 | | | N Gibbs | 3 | 3 | | | | | | | | | | |
| | N Gibbs | 6 | 7 | | | | | | | 4 | S Cîrstea | 3 | 1 | | | | | |
| Q | L Kumkhum | 3 | 6 | 6 | | | | | | Q | L Kumkhum | 6 | 6 | | | | | |
| | M Duque Mariño | 6 | 4 | 1 | Q | L Kumkhum | 6 | 6 | | | | | | | | | | |
| | E Alexandrova | 6 | 7 | | | E Alexandrova | 3 | 3 | | | | | | | | | | |
| 7 | L Arruabarrena | 3 | 5 | | | | | | | | | | | | | | | |

### 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 | Semifinals | Semifinals | Semifinals |
| 5 | I-C Begu | 2 | 6 | 6 | | | | | | | | | | | | |
| Q | V Wongteanchai | 6 | 3 | 3 | 5 | I-C Begu | 3 | 6 | 2 | | | | | | | |
| WC | K Zavatska | 6 | 3 | 1 | | B Haddad Maia | 6 | 4 | 6 | | | | | | | |
| | B Haddad Maia | 4 | 6 | 6 | | | | | | | B Haddad Maia | 6 | 6 | | | |
| | S Sorribes Tormo | 6 | 0 | 6 | | | | | | | S Sorribes Tormo | 4 | 4 | | | |
| | H Watson | 3 | 6 | 1 | | S Sorribes Tormo | 6 | 6 | | | | | | | | |
| WC | N-l Han | 6 | 6 | | WC | N-l Han | 1 | 2 | | | | | | | | |
| 3 | Kr Plíšková | 4 | 4 | | | | | | | | | | | B Haddad Maia | 6 | 7$^9$ |
| 8 | C McHale | 3 | 4 | | | | | | | | | | | R Hogenkamp | 1 | 6$^7$ |
| Q | A Rus | 6 | 6 | | Q | A Rus | 5 | 4 | | | | | | | | |
| Q | P Hon | 6 | 4 | 6 | Q | P Hon | 7 | 6 | | | | | | | | |
| Q | K Muchová | 1 | 6 | 4 | | | | | | Q | P Hon | 3 | 4 | | | |
| | A Petkovic | 2 | 5 | | | | | | | | R Hogenkamp | 6 | 6 | | | |
| | D Allertová | 6 | 7 | | | D Allertová | 4 | 4 | | | | | | | | |
| | R Hogenkamp | 5 | 6 | 6 | | R Hogenkamp | 6 | 6 | | | | | | | | |
| 2 | K Bertens | 7 | 4 | 3 | | | | | | | | | | | | |

## Qualifying
### Seeds

* Tereza Martincová (qualifying competition)
* Arantxa Rus (qualified)
* Luksika Kumkhum (qualified)
* Miharu Imanishi (qualifying competition)
* Peangtarn Plipuech (qualified)
* Karolína Muchová (qualified)
* Jennifer Elie (qualifying competition)
* Varatchaya Wongteanchai (qualified)
* Katy Dunne (qualifying competition)
* Priscilla Hon (qualified)
* Anna Morgina (qualifying competition)
* Kim Na-ri (qualifying competition)

### Qualifiers

* Priscilla Hon
* Arantxa Rus
* Luksika Kumkhum
* Varatchaya Wongteanchai
* Peangtarn Plipuech
* Karolína Muchová

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Tereza Martincová | 6 | 6 | | | | |
| WC | Jeong Yeong-won | 4 | 2 | | | | |
| WC | Jeong Yeong-won | 4 | 2 | 1 | Tereza Martincová | 1 | 2 |
| | | | | 10 | Priscilla Hon | 6 | 6 |
| | Olivia Tjandramulia | 1 | 1 | 10 | Priscilla Hon | 6 | 6 |
| 10 | Priscilla Hon | 6 | 6 | | | | |

#### Second qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Arantxa Rus | 6 | 6 | | | | |
| WC | Kim Se-hyun | 3 | 1 | | | | |
| WC | Kim Se-hyun | 3 | 1 | 2 | Arantxa Rus | 6 | 7$^7$ |
| | | | | 7 | Jennifer Elie | 4 | 6$^2$ |
| WC | Oksana Kalashnikova | 4 | 4 | 7 | Jennifer Elie | 4 | 6$^2$ |
| 7 | Jennifer Elie | 6 | 6 | | | | |

#### Third qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Luksika Kumkhum | 6 | 7$^7$ | | | | |
| | Choi Ji-hee | 1 | 6$^5$ | | | | |
| | Choi Ji-hee | 1 | 6$^5$ | 3 | Luksika Kumkhum | 6 | 6 |
| | | | | 9 | Katy Dunne | 2 | 1 |
| WC | Ahn Yu-jin | 5 | 1 | 9 | Katy Dunne | 2 | 1 |
| 9 | Katy Dunne | 7 | 6 | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Miharu Imanishi | 6 | 6 | | | | | |
| WC | Kim Da-bin | 2 | 1 | | | | | |
| WC | Kim Da-bin | 2 | 1 | 4 | Miharu Imanishi | 6 | 5 | 1 |
| | | | | 8 | Varatchaya Wongteanchai | 2 | 7 | 6 |
| WC | Ji Sun-ae | 0 | 0 | 8 | Varatchaya Wongteanchai | 2 | 7 | 6 |
| 8 | Varatchaya Wongteanchai | 6 | 6 | | | | | |

#### Fifth qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 5 | Peangtarn Plipuech | 6 | 6 | | | | | |
| | Chuang Chia-jung | 2 | 1 | | | | | |
| | Chuang Chia-jung | 2 | 1 | 5 | Peangtarn Plipuech | 5 | 6 | 6 |
| | | | | 12 | Kim Na-ri | 7 | 2 | 1 |
| | Park Sang-hee | 3 | 2 | 12 | Kim Na-ri | 7 | 2 | 1 |
| 12 | Kim Na-ri | 6 | 6 | | | | | |

#### Sixth qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 6 | Karolína Muchová | 6 | 6 | | | | |
| WC | Lee So-ra | 2 | 4 | | | | |
| WC | Lee So-ra | 2 | 4 | 6 | Karolína Muchová | 6 | 6 |
| | | | | 11 | Anna Morgina | 1 | 3 |
| | Jeong Su-nam | 3 | 6$^2$ | 11 | Anna Morgina | 1 | 3 |
| 11 | Anna Morgina | 6 | 7$^7$ | | | | |