2013 HP Open
| 2013 HP Open | |
|---|---|
| Date | 7 – 13 October |
| Edition | 5th |
| Category | WTA International tournaments |
| Surface | Hard / outdoor |
| Location | Osaka, Japan |
| Venue | Utsubo Tennis Center |
| Champions | |
| Singles | |
 Samantha Stosur | |
| Doubles | |
 Kristina Mladenovic /  Flavia Pennetta | |
The 2013 HP Open was a women's tennis tournament played on outdoor hard courts sponsored by Hewlett-Packard. It was the fifth edition of the HP Open, and part of the WTA International tournaments of the 2013 WTA Tour. It was held at the Utsubo Tennis Center in Osaka, Japan, from October 7 through October 13, 2013.
Singles main draw entrants
Seeds
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 SRB |
|||
 GER
|
Sabine Lisicki | 16 | 2 |
| AUS
|
Samantha Stosur | 20 | 3 |
| ITA
|
Flavia Pennetta | 29 | 4 |
 CAN
|
Eugenie Bouchard | 36 | 5 |
 USA
|
Madison Keys | 40 | 6 |
 GBR
|
Laura Robson | 41 | 7 |
 PUR
|
Monica Puig | 45 | 8 |
| FRA
|
Kristina Mladenovic | 47 | 9 |
- Rankings are as of September 30, 2013
Other Entrants
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:
Withdrawals
- Before the tournament
Marina Erakovic
Jamie Hampton
Jelena Janković (left hip injury)- Bethanie Mattek-Sands
Shahar Pe'er (planta fascia injury)
Yaroslava Shvedova- Galina Voskoboeva
- Venus Williams
- During the tournament
Sabine Lisicki (left hip injury)
Doubles main draw entrants
Seeds
| Country | Player | Country | Player | Rank1 | Seed |
|---|---|---|---|---|---|
| USA
|
Raquel Kops-Jones | USA
|
Abigail Spears | 44 | 1 |
| FRA
|
Kristina Mladenovic | ITA
|
Flavia Pennetta | 66 | 2 |
| USA
|
Varvara Lepchenko |  CHN
|
Zheng Saisai | 81 | 3 |
 ESP
|
Anabel Medina Garrigues | ESP
|
Silvia Soler Espinosa | 81 | 4 |
- 1 Rankings are as of September 30, 2013
Other entrants
The following pairs received wildcards into the doubles main draw:
Withdrawals
- During the tournament
Polona Hercog (back injury)- Varvara Lepchenko (gastrointestinal illness)
Champions
Singles
Samantha Stosur def. 
Eugenie Bouchard, 3–6, 7–5, 6–2
Doubles
Kristina Mladenovic / 
Flavia Pennetta def. Samantha Stosur / 
Zhang Shuai, 6–4, 6–3