# 2014 Japan Women's Open – Singles

Samantha Stosur successfully defended her title, defeating Zarina Diyas in the final, 7–6$^{(9–7)}$, 6–3.

## Seeds

* Samantha Stosur (champion)
* Madison Keys (quarterfinals, retired)
* Elina Svitolina (semifinals)
* Coco Vandeweghe (second round)
* Zarina Diyas (final)
* Heather Watson (second round)
* Christina McHale (first round)
* Lauren Davis (quarterfinals)

## 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 | Samantha Stosur | 7$^8$ | 6 | | | | |
| 3 | Elina Svitolina | 6$^6$ | 2 | | | | |
| 3 | Elina Svitolina | 6$^6$ | 2 | 1 | Samantha Stosur | 7$^9$ | 6 |
| | | | | 5 | Zarina Diyas | 6$^7$ | 3 |
| 5 | Zarina Diyas | 6 | 7 | 5 | Zarina Diyas | 6$^7$ | 3 |
| | Luksika Kumkhum | 2 | 5 | | | | |

### 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 |
| 1 | S Stosur | 6 | 7 | | | | | | | | | | | | | | |
| | M Eguchi | 4 | 5 | | 1 | S Stosur | 7$^7$ | 1 | | | | | | | | | |
| LL | M Imanishi | 4 | 0 | | | J Gajdošová | 6$^4$ | 0$^r$ | | | | | | | | | |
| | J Gajdošová | 6 | 6 | | | | | | | 1 | S Stosur | 6 | 6 | | | | |
| | Y Putintseva | 7$^7$ | 6 | | | | | | | | Y Putintseva | 4 | 1 | | | | |
| WC | R Ozaki | 6$^3$ | 3 | | | Y Putintseva | 6 | 7 | | | | | | | | | |
| | J Jakšić | 6 | 4 | 2 | 6 | H Watson | 4 | 5 | | | | | | | | | |
| 6 | H Watson | 3 | 6 | 6 | | | | | | | | | | 1 | S Stosur | 7$^8$ | 6 |
| 3 | E Svitolina | 7$^7$ | 4 | 6 | | | | | | | | | | 3 | E Svitolina | 6$^6$ | 2 |
| | S Rogers | 6$^2$ | 6 | 1 | 3 | E Svitolina | 3 | 6 | 6 | | | | | | | | |
| | E Sema | 1 | 6 | 0 | WC | N Osaka | 6 | 3 | 4 | | | | | | | | |
| WC | N Osaka | 6 | 4 | 6 | | | | | | 3 | E Svitolina | 6 | 6 | | | | |
| | R Voráčová | 1 | 3 | | | | | | | 8 | L Davis | 2 | 4 | | | | |
| Q | S Aoyama | 6 | 6 | | Q | S Aoyama | 1 | 1 | | | | | | | | | |
| Q | H Kuwata | 6 | 4 | 6$^3$ | 8 | L Davis | 6 | 6 | | | | | | | | | |
| 8 | L Davis | 1 | 6 | 7$^7$ | | | | | | | | | | | | | |

### 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 |
| 5 | Z Diyas | 7$^7$ | 6 | | | | | | | | | | | | | | | |
| Q | Y-j Chan | 6$^3$ | 1 | | 5 | Z Diyas | 6 | 6 | | | | | | | | | | |
| PR | T Maria | 2 | 1 | | | L Arruabarrena | 0 | 1 | | | | | | | | | | |
| | L Arruabarrena | 6 | 6 | | | | | | | 5 | Z Diyas | 6$^4$ | 6 | 6 | | | | |
| | J Zheng | 6 | 5 | 2 | | | | | | | A Konjuh | 7$^7$ | 4 | 2 | | | | |
| | A Konjuh | 4 | 7 | 6 | | A Konjuh | 6 | 3 | 6 | | | | | | | | | |
| WC | K Mladenovic | 2 | 3 | | 4 | C Vandeweghe | 2 | 6 | 3 | | | | | | | | | |
| 4 | C Vandeweghe | 6 | 6 | | | | | | | | | | | | 5 | Z Diyas | 6 | 7 |
| 7 | C McHale | 6 | 1 | 3 | | | | | | | | | | | | L Kumkhum | 2 | 5 |
| | L Kumkhum | 4 | 6 | 6 | | L Kumkhum | 2 | 6 | 6 | | | | | | | | | |
| | B Mattek-Sands | 6$^4$ | 6 | 1 | | E Hozumi | 6 | 4 | 4 | | | | | | | | | |
| | E Hozumi | 7$^7$ | 3 | 6 | | | | | | | L Kumkhum | 6 | 4 | | | | | |
| | M Doi | 6$^4$ | 6 | 6 | | | | | | 2 | M Keys | 2 | 3$^r$ | | | | | |
| Q | A Bogdan | 7$^7$ | 2 | 2 | | M Doi | 0 | 4 | | | | | | | | | | |
| | S Vickery | 3 | 3 | | 2 | M Keys | 6 | 6 | | | | | | | | | | |
| 2 | M Keys | 6 | 6 | | | | | | | | | | | | | | | |

## Qualifying
### Seeds

* Hiroko Kuwata (qualified)
* Alizé Lim (second round)
* Indy de Vroome (second round)
* Arina Rodionova (second round)
* Miharu Imanishi (qualifying competition, lucky loser)
* Nao Hibino (second round)
* Olga Savchuk (qualifying competition)
* Chan Yung-jan (qualified)

### Qualifiers

* Hiroko Kuwata
* Chan Yung-jan
* Ana Bogdan
* Shuko Aoyama

### Lucky loser

* Miharu Imanishi

### Draw
#### First qualifier

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Hiroko Kuwata | 3 | 6 | 7$^7$ | | | | | | | | | |
| | Mari Tanaka | 6 | 1 | 6$^4$ | | | | | | | | | |
| | Mari Tanaka | 6 | 1 | 6$^4$ | 1 | Hiroko Kuwata | 2 | 6 | 6 | | | | |
| | | | | | | Riko Sawayanagi | 6 | 1 | 1 | | | | |
| | Makoto Ninomiya | 6 | 6$^5$ | 4 | | Riko Sawayanagi | 6 | 1 | 1 | | | | |
| | Riko Sawayanagi | 3 | 7$^7$ | 6 | | | | | | | | | |
| | Riko Sawayanagi | 3 | 7$^7$ | 6 | | | | | | 1 | Hiroko Kuwata | 6 | 7 |
| | | | | | | | | | | 5 | Miharu Imanishi | 4 | 5 |
| | Kanae Hisami | 6 | 7 | | | | | | | | | | | 5 | Miharu Imanishi | 4 | 5 |
| | Chiaki Okadaue | 4 | 5 | | | | | | | | | | |
| | Chiaki Okadaue | 4 | 5 | | | Kanae Hisami | 3 | 7$^{10}$ | 1 | | | | |
| | | | | | 5 | Miharu Imanishi | 6 | 6$^8$ | 6 | | | | |
| | Yurika Sema | 2 | 7$^7$ | 2 | 5 | Miharu Imanishi | 6 | 6$^8$ | 6 | | | | |
| 5 | Miharu Imanishi | 6 | 6$^5$ | 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 | Qualifying competition |
| 2 | Alizé Lim | 6 | 6 | | | | | | | | | |
| WC | Chihiro Takayama | 3 | 1 | | | | | | | | | |
| WC | Chihiro Takayama | 3 | 1 | 2 | Alizé Lim | 1 | 1 | | | | | |
| | | | | | Junri Namigata | 6 | 6 | | | | | |
| | Junri Namigata | 6 | 7$^7$ | | Junri Namigata | 6 | 6 | | | | | |
| | Noppawan Lertcheewakarn | 3 | 6$^5$ | | | | | | | | | |
| | Noppawan Lertcheewakarn | 3 | 6$^5$ | | | | | | Junri Namigata | 2 | 6 | 2 |
| | | | | | | | | 8 | Chan Yung-jan | 6 | 4 | 6 |
| WC | Maria Mukai | 4 | 3 | | | | | | | | | | 8 | Chan Yung-jan | 6 | 4 | 6 |
| WC | Chihiro Muramatsu | 6 | 6 | | | | | | | | | |
| WC | Chihiro Muramatsu | 6 | 6 | WC | Chihiro Muramatsu | 0 | 1 | | | | | |
| | | | | 8 | Chan Yung-jan | 6 | 6 | | | | | |
| | Haruka Kaji | 3 | 1 | 8 | Chan Yung-jan | 6 | 6 | | | | | |
| 8 | Chan Yung-jan | 6 | 6 | | | | | | | | | |

#### Third qualifier

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Indy de Vroome | 7$^7$ | 7$^7$ | | | | | | | | | |
| | Kotomi Takahata | 6$^4$ | 6$^3$ | | | | | | | | | |
| | Kotomi Takahata | 6$^4$ | 6$^3$ | 3 | Indy de Vroome | 4 | 6 | 5 | | | | |
| | | | | | Tori Kinard | 6 | 1 | 7 | | | | |
| | Tori Kinard | 6 | 6 | | Tori Kinard | 6 | 1 | 7 | | | | |
| WC | Kimika Sakata | 1 | 0 | | | | | | | | | |
| WC | Kimika Sakata | 1 | 0 | | | | | | Tori Kinard | 6 | 4 | 4 |
| | | | | | | | | | Ana Bogdan | 1 | 6 | 6 |
| | Ana Bogdan | 6 | 6 | | | | | | | | | | Ana Bogdan | 1 | 6 | 6 |
| | Yumi Miyazaki | 0 | 2 | | | | | | | | | |
| | Yumi Miyazaki | 0 | 2 | | Ana Bogdan | 6 | 2 | 6 | | | | |
| | | | | 6 | Nao Hibino | 2 | 6 | 1 | | | | |
| | Yuka Higuchi | 5 | 0 | 6 | Nao Hibino | 2 | 6 | 1 | | | | |
| 6 | Nao Hibino | 7 | 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 | Arina Rodionova | 4 | 6 | 6 | | | | | | | | | |
| | Chang Kai-chen | 6 | 3 | 4 | | | | | | | | | |
| | Chang Kai-chen | 6 | 3 | 4 | 4 | Arina Rodionova | 1 | 4 | | | | | |
| | | | | | | Shuko Aoyama | 6 | 6 | | | | | |
| | Mari Osaka | 6 | 2 | 3 | | Shuko Aoyama | 6 | 6 | | | | | |
| | Shuko Aoyama | 3 | 6 | 6 | | | | | | | | | |
| | Shuko Aoyama | 3 | 6 | 6 | | | | | | Shuko Aoyama | 3 | 6 | 6 |
| | | | | | | | | | 7 | Olga Savchuk | 6 | 1 | 1 |
| | Miki Miyamura | 6 | 6 | | | | | | | | | | | 7 | Olga Savchuk | 6 | 1 | 1 |
| | Michika Ozeki | 1 | 1 | | | | | | | | | | |
| | Michika Ozeki | 1 | 1 | | | Miki Miyamura | 2 | 3 | | | | | |
| | | | | | 7 | Olga Savchuk | 6 | 6 | | | | | |
| | Kyōka Okamura | 5 | 3 | | 7 | Olga Savchuk | 6 | 6 | | | | | |
| 7 | Olga Savchuk | 7 | 6 | | | | | | | | | | |