Petra Kvitová defeated Angelique Kerber in the final, 6–2, 0–6, 6–3 to win the singles tennis title at the 2013 Pan Pacific Open.
Nadia Petrova was the reigning champion, but withdrew with a left hip injury before the tournament.
Seeds The top eight seeds receive a bye into the second round.
Victoria Azarenka (second round) Agnieszka Radwańska (quarterfinals) Sara Errani (second round) Caroline Wozniacki (semifinals) Angelique Kerber (final) Jelena Janković (third round) Petra Kvitová (champion) Roberta Vinci (second round) Sloane Stephens (second round) Carla Suárez Navarro (first round) Ana Ivanovic (third round) Samantha Stosur (third round) Simona Halep (third round) Kirsten Flipkens (second round) Sorana Cîrstea (third round) Dominika Cibulková (third round)
Draw
Finals
Top half
Section 1
Section 2
Bottom half
Section 3
Section 4
Qualifying
Seeds
Qualifiers
Qualifying draw
First qualifier
Second qualifier
Third qualifier
Fourth qualifier
Fifth qualifier
Sixth qualifier
Seventh qualifier
Eighth qualifier
References
Main Draw Qualifying Draw