Fresh off her come-from-behind victory in the LPGA Northwest Arkansas Championship, golfer Yani Tseng said Tuesday that she will continue working toward the challenge of taking top spot in the world rankings. 'Thank all of you for your long-term support... I will work to the best of my ability to make history and seek the top spot in the world, ' Tseng said at a news conference upon her return to Taipei. Tseng, who bested Michelle Wie of the United States by one stroke after trailing by three shots when she entered the final round Sunday, said winning a career grand slam is her next goal. Of the 21-year-old's five LPGA titles, three have been majors. Her latest victory in Arkansas was her first in a non-major this year and followed wins at the Kraft Nabisco Championship in April and the RICOH Women's British Open in August. Tseng won the LPGA Championship in 2008, leaving the U.S. Women's Open as the one major she has yet to win. According to the LPGA website, only seven players in history have completed career grand slams. The US$300,000 top prize in Arkansas pushed Tseng to second place on the LPGA's official money list, with US$1.42 million in winnings in 2010, second only to Jiyai Shin of South Korea, who has won US$1.46 million. The victory also helped Tseng vault past Norway's Suzann Petersen to fourth place in the Rolex world rankings. Over time, Tseng said, she has grown more confident and less prone to nerves on the course. 'I want to get a birdie on every hole. I always play with ambition and the will to win, and I do not feel fear or hesitation, ' Tseng said. Reflecting on her latest victory, she said that although she went into Sunday's final round three shots behind Wie, she began to believe after the front nine that she would win the tournament. 'I told myself I needed to be more focused on the course and to play better if I wanted to win, ' said Tseng, who also spent a lot of time during the final round talking to her ball and clubs to push herself to victory. Aside from setting her sights on next year's U.S. Women's Open to complete her career grand slam, she also said she hopes to attain the No. 1 ranking, currently held by Japan's Ai Miyazato. Tseng has been ranked as high as second during her career. 'Emerging as the world's top golfer is my life goal and I must work even harder in the years ahead to realize my dream,' she added. On Taiwan's success in gaining the right to host an LPGA Tour event next year -- something the young golfer has been outspoken about in the past -- Tseng said she was very happy to hear the news. 'Many of my LPGA peers are looking forward to the event and have been asking me about Taiwan's major tourist attractions, ' she said. After a four-day stay in Taipei, Tseng will leave for Japan to take part in two LPGA of Japan Tour events -- the Miyagi TV Cup Dunlop Women's Open Sept. 24-26 and the Japan Women's Open Golf Championship Oct. 1-4. 