2013 HP Open

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.

Seeds

 * Rankings are as of September 30, 2013

Other entrants
The following players received wildcards into the singles main draw:
 * 🇯🇵 Kurumi Nara
 * 🇬🇧 Laura Robson

The following players received entry from the qualifying draw:
 * 🇸🇰 Anna Karolína Schmiedlová
 * 🇹🇭 Luksika Kumkhum
 * 🇨🇿 Barbora Záhlavová-Strýcová
 * Belinda Bencic

The following player received entry as a lucky loser:
 * 🇺🇸 Vania King

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)

Seeds

 * 1 Rankings are as of September 30, 2013

Other entrants
The following pairs received wildcards into the doubles main draw:
 * 🇯🇵 Misaki Doi / 🇯🇵 Miki Miyamura
 * 🇯🇵 Kurumi Nara / 🇯🇵 Risa Ozaki

Withdrawals

 * During the tournament
 * Polona Hercog (back injury)
 * 🇺🇸 Varvara Lepchenko (gastrointestinal illness)

Singles
🇦🇺 Samantha Stosur def. 🇨🇦 Eugenie Bouchard, 3–6, 7–5, 6–2
 * It was Stosur's 2nd title of the year and the 5th of her career.

Doubles
🇫🇷 Kristina Mladenovic / 🇮🇹 Flavia Pennetta def. 🇦🇺 Samantha Stosur / 🇨🇳 Zhang Shuai, 6–4, 6–3