Tokyo, Japan -- (Sports Network) - Denmark's Caroline Wozniacki picked up her third title this year after beating Estonia's Kaia Kanepi in three sets to win the $175,000 Japan Open Tennis Championships.

The top-seeded Wozniacki became the sixth player to win at least three tournaments in 2008 by taking out the fifth-seeded Kanepi, 6-2, 3-6, 6-1 in two hours.

Wozniacki, who is just 18-years-old, added to her titles at Stockholm and New Haven. She took advantage of eight double faults from her opponent to earn the $28,000 top prize.

"I'm really excited to win this tournament," said Wozniacki. "I had some tough draws against some great players the last few weeks, but both matches were close and I still felt I was playing well."

The 23-year-old Kanepi was trying for her first career title.

"It was a good match. I definitely had my chances in the second set and I hit a lot of good winners, but she's very aggressive and if you don't keep up with her, she will win," said Kanepi. "I have been here without a coach for the last few weeks. I've been working to figure out who I am on the court by myself, and how I'm playing. I'm very happy with the result, that I made it to the final on my own."