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Tokyo, Japan (Sports Network) - Nadia Petrova earned a three-set victory over defending champion Agnieszka Radwanska to capture the Pan Pacific Open title on Saturday.

The 17th-seeded Petrova jumped out to a strong start and survived a charge from the third-seeded Radwanska to secure a 6-0, 1-6, 6-3 victory in 1-hour, 41-minutes.

It is the 12th career WTA title and second in 2012 for the Russian, who won the Wimbledon tune-up in the Netherlands back in June. The 30-year-old tour veteran improved to 12-11 in WTA finals.

Radwanska, meanwhile, fell to 10-4 all-time in finals. The 23-year-old Wimbledon runner-up was attempting to capture her 11th career WTA title and fourth this year

Petrova improved to 2-3 lifetime against Radwanska. All four previous matches were played in 2008, including a 6-3, 6-0 Petrova rout in the quarterfinals of this event. Radwanska won the only previous final between the two, a 6-4, 6-7 (11-13), 6-4 thriller at the Wimbledon tune-up in Eastbourne.

For her efforts in Tokyo, Petrova earned a first prize of $385,000.