# 2012 Korea Open – Singles

María José Martínez Sánchez was the defending champion, but lost to Ekaterina Makarova in the quarterfinals. Caroline Wozniacki won the title, defeating Kaia Kanepi in the final, 6–1, 6–0. This was the first title in 13 months for the former World No. 1 and her first of 2012.

## Seeds

* Caroline Wozniacki (champion)
* Maria Kirilenko (first round, retired because of a back injury)
* Kaia Kanepi (final)
* Nadia Petrova (second round, withdrew because of a back injury)
* Julia Görges (first round)
* Varvara Lepchenko (semifinals)
* Klára Zakopalová (quarterfinals)
* Ekaterina Makarova (semifinals)

## 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 |
| 1 | Caroline Wozniacki | 6 | 5 | 6 | | | | |
| 8 | Ekaterina Makarova | 1 | 7 | 4 | | | | |
| 8 | Ekaterina Makarova | 1 | 7 | 4 | 1 | Caroline Wozniacki | 6 | 6 |
| | | | | | 3 | Kaia Kanepi | 1 | 0 |
| 3 | Kaia Kanepi | 6 | 2 | 6 | 3 | Kaia Kanepi | 1 | 0 |
| 6 | Varvara Lepchenko | 4 | 6 | 4 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | C Wozniacki | 6 | 6 | | | | | | | | | | | | | | |
| | A Rus | 1 | 2 | | 1 | C Wozniacki | 6 | 6 | | | | | | | | | |
| Q | C Garcia | 6 | 6 | | Q | C Garcia | 2 | 3 | | | | | | | | | |
| | A Cadanțu | 2 | 3 | | | | | | 1 | C Wozniacki | 6 | 6 | | | | | |
| | K Date-Krumm | 4 | 3 | | | | | | 7 | K Zakopalová | 2 | 3 | | | | | |
| | M Rybáriková | 6 | 6 | | | M Rybáriková | 1 | 6$^6$ | | | | | | | | | |
| | G Muguruza | 4 | 6 | 6$^1$ | 7 | K Zakopalová | 6 | 7$^8$ | | | | | | | | | |
| 7 | K Zakopalová | 6 | 4 | 7$^7$ | | | | | | | | | 1 | C Wozniacki | 6 | 5 | 6 |
| 4 | N Petrova | 6 | 6 | | | | | | | | | | 8 | E Makarova | 1 | 7 | 4 |
| | L Domínguez Lino | 2 | 4 | | 4 | N Petrova | | | | | | | | | | | |
| Q | E Daniilidou | 2 | 3 | | | MJ Martínez Sánchez | w/o | | | | | | | | | | |
| | MJ Martínez Sánchez | 6 | 6 | | | | | | | MJ Martínez Sánchez | 1 | 1 | | | | | |
| | R Oprandi | 7 | 3 | 2 | | | | | 8 | E Makarova | 6 | 6 | | | | | |
| Q | J Hampton | 5 | 6 | 6 | Q | J Hampton | 3 | 5 | | | | | | | | | |
| | P Hercog | 4 | 1 | | 8 | E Makarova | 6 | 7 | | | | | | | | | |
| 8 | E Makarova | 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 | Semifinals |
| 5 | J Görges | 6 | 6$^5$ | 2 | | | | | | | | | | | | | | | |
| | S Soler Espinosa | 1 | 7$^7$ | 6 | | S Soler Espinosa | 6 | 6$^3$ | 2 | | | | | | | | | | |
| | V King | 3 | 1 | | | K Bertens | 1 | 7$^7$ | 6 | | | | | | | | | | |
| | K Bertens | 6 | 6 | | | | | | | | K Bertens | 4 | 4 | | | | | | |
| | G Voskoboeva | 6 | 6 | | | | | | | 3 | K Kanepi | 6 | 6 | | | | | | |
| WC | H-h Hong | 1 | 2 | | | G Voskoboeva | 2 | 2 | | | | | | | | | | | |
| WC | S-h Han | 1 | 0 | | 3 | K Kanepi | 6 | 6 | | | | | | | | | | | |
| 3 | K Kanepi | 6 | 6 | | | | | | | | | | | | 3 | K Kanepi | 6 | 2 | 6 |
| 6 | V Lepchenko | 6 | 7$^7$ | | | | | | | | | | | | 6 | V Lepchenko | 4 | 6 | 4 |
| | C Giorgi | 2 | 6$^1$ | | 6 | V Lepchenko | 6 | 6 | | | | | | | | | | | |
| Q | S Karatantcheva | 4 | 4 | | | A Medina Garrigues | 4 | 1 | | | | | | | | | | | |
| | A Medina Garrigues | 6 | 6 | | | | | | | 6 | V Lepchenko | 4 | 7$^7$ | 6 | | | | | |
| | T Paszek | 7$^{10}$ | 6 | | | | | | | | T Paszek | 6 | 6$^3$ | 4 | | | | | |
| | C Suárez Navarro | 6$^8$ | 3 | | | T Paszek | 6 | 6 | | | | | | | | | | | |
| WC | S-r Lee | 1 | | | WC | S-r Lee | 2 | 0 | | | | | | | | | | | |
| 2 | M Kirilenko | 1$^r$ | | | | | | | | | | | | | | | | | |

## Qualifying
### Seeds

* Sesil Karatantcheva (qualified)
* Jamie Hampton (qualified)
* Eleni Daniilidou (qualified)
* Gréta Arn (qualifying competition)
* Vera Dushevina (qualifying competition)
* Misaki Doi (first round)
* Claire Feuerstein (second round)
* Akgul Amanmuradova (qualifying competition)

### Qualifiers

* Sesil Karatantcheva
* Jamie Hampton
* Eleni Daniilidou
* Caroline Garcia

### Draw
#### First qualifier

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Sesil Karatantcheva | 6 | 6 | | | | | | | | |
| WC | Choi Ji-hee | 2 | 1 | | | | | | | | |
| WC | Choi Ji-hee | 2 | 1 | 1 | Sesil Karatantcheva | 6 | 6 | | | | |
| | | | | | Victoria Larrière | 0 | 2 | | | | |
| | Victoria Larrière | 6 | 6 | | Victoria Larrière | 0 | 2 | | | | |
| | Ksenia Lykina | 4 | 4 | | | | | | | | |
| | Ksenia Lykina | 4 | 4 | | | | | 1 | Sesil Karatantcheva | 6 | 6 |
| | | | | | | | | 5 | Vera Dushevina | 2 | 1 |
| | Ekaterina Yashina | 1 | 0 | | | | | | | | | 5 | Vera Dushevina | 2 | 1 |
| | Karolina Wlodarczak | 6 | 6 | | | | | | | | |
| | Karolina Wlodarczak | 6 | 6 | | Karolina Wlodarczak | 4 | 0 | | | | |
| | | | | 5 | Vera Dushevina | 6 | 6 | | | | |
| | Jill Craybas | 5 | 2 | 5 | Vera Dushevina | 6 | 6 | | | | |
| 5 | Vera Dushevina | 7 | 6 | | | | | | | | |

#### Second qualifier

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Jamie Hampton | 6 | 6 | | | | | | | | |
| | Darija Jurak | 3 | 3 | | | | | | | | |
| | Darija Jurak | 3 | 3 | 2 | Jamie Hampton | 6 | 6 | | | | |
| | | | | | Aleksandra Krunić | 3 | 2 | | | | |
| | Rika Fujiwara | 6$^3$ | 5 | | Aleksandra Krunić | 3 | 2 | | | | |
| | Aleksandra Krunić | 7$^7$ | 7 | | | | | | | | |
| | Aleksandra Krunić | 7$^7$ | 7 | | | | | 2 | Jamie Hampton | 6 | 6 |
| | | | | | | | | | Catalina Castaño | 2 | 2 |
| WC | Han Na-lae | 4 | 2 | | | | | | | | | Catalina Castaño | 2 | 2 |
| WC | Jun Nam-yeon | 6 | 6 | | | | | | | | |
| WC | Jun Nam-yeon | 6 | 6 | WC | Jun Nam-yeon | 0 | 1 | | | | |
| | | | | | Catalina Castaño | 6 | 6 | | | | |
| | Catalina Castaño | 7$^7$ | 6 | | Catalina Castaño | 6 | 6 | | | | |
| 6 | Misaki Doi | 6$^2$ | 2 | | | | | | | | |

#### Third qualifier

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Eleni Daniilidou | 6 | 6 | | | | | | | | | |
| | Jang Su-jeong | 1 | 3 | | | | | | | | | |
| | Jang Su-jeong | 1 | 3 | | 3 | Eleni Daniilidou | 6 | 6 | | | | |
| | | | | | | Noppawan Lertcheewakarn | 3 | 2 | | | | |
| | Noppawan Lertcheewakarn | 5 | 6 | 6 | | Noppawan Lertcheewakarn | 3 | 2 | | | | |
| | Abigail Spears | 7 | 3 | 2 | | | | | | | | |
| | Abigail Spears | 7 | 3 | 2 | | | | | 3 | Eleni Daniilidou | 6 | 6 |
| | | | | | | | | | 8 | Akgul Amanmuradova | 2 | 4 |
| | Daria Gavrilova | 6 | 4 | 6 | | | | | | | | | 8 | Akgul Amanmuradova | 2 | 4 |
| | Erika Takao | 1 | 6 | 2 | | | | | | | | |
| | Erika Takao | 1 | 6 | 2 | | Daria Gavrilova | 1 | 6$^3$ | | | | |
| | | | | | 8 | Akgul Amanmuradova | 6 | 7$^7$ | | | | |
| | Kim So-jung | 1 | 0 | | 8 | Akgul Amanmuradova | 6 | 7$^7$ | | | | |
| 8 | Akgul Amanmuradova | 6 | 6 | | | | | | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Gréta Arn | 1 | 6 | 7 | | | | | | | | | |
| | Junri Namigata | 6 | 1 | 5 | | | | | | | | | |
| | Junri Namigata | 6 | 1 | 5 | 4 | Gréta Arn | 6 | 6 | | | | | |
| | | | | | | Shiho Akita | 0 | 3 | | | | | |
| | Shiho Akita | 6 | 6 | | | Shiho Akita | 0 | 3 | | | | | |
| | Katalin Marosi | 4 | 3 | | | | | | | | | | |
| | Katalin Marosi | 4 | 3 | | | | | | 4 | Gréta Arn | 1 | 6 | 5 |
| | | | | | | | | | | Caroline Garcia | 6 | 3 | 7 |
| | Raquel Kops-Jones | 6 | 5 | 3 | | | | | | | | | | Caroline Garcia | 6 | 3 | 7 |
| | Caroline Garcia | 3 | 7 | 6 | | | | | | | | | |
| | Caroline Garcia | 3 | 7 | 6 | | Caroline Garcia | 7$^7$ | 6 | | | | | |
| | | | | | 7 | Claire Feuerstein | 6$^4$ | 2 | | | | | |
| WC | Song Ah | 0 | 2 | | 7 | Claire Feuerstein | 6$^4$ | 2 | | | | | |
| 7 | Claire Feuerstein | 6 | 6 | | | | | | | | | | |