Rolex Rankings No. 1 and Handa Women&aposs Australian Open champion Yani Tseng shot 6-under-par 66 on Sunday to win the season-opening Honda LPGA Thailand by five shots over Michelle Wie. The 22-year-old began her 2011 season with victories on the Ladies European Tour (LET) at the Handa Women&aposs Australian Open and ANZ/RACV Australian Ladies Masters in consecutive weeks prior to this week s LPGA season opener. She is projected to retain the No. 1 spot in women’s professional golf entering next week s HSBC Women’s Champions. Tseng has now teed it up four times in 2011, including a small professional event in Taiwan, with four victories. The overnight leader, Tseng kept herself in contention with six birdies in her first 13 holes before her first-and-only blemish of the day at 14, where she made bogey. She rebounded with a birdie at 15 and never looked back, claiming her sixth-career LPGA Tour victory at 15-under-par 273. With the win, Tseng earns $217,500 and an early lead on the LPGA Official Money List and Rolex Player of the Year race. Yani Tseng, Michelle Wie and Karrie Webb punched their Ticket to Titleholders at the Honda LPGA Thailand. By virtue of their top-three finishes, Tseng, Wie and Webb each earned a spot in the season-ending Titleholders event, to be held Nov. 17-20, 2011 at Grand Cypress Golf Club in Orlando, Fla. The inaugural Titleholders, a season finale with a field made up of three qualifiers from every official LPGA Tour tournament, is a format never previously used in professional golf. Despite tying with I.K. Kim for third place, Webb qualifies with a lower final round score. Speaking about her victory, Tseng said: “I just tried my best and I know I had lots of confidence, but with all the great golfers out here, you never know until the last putt drops in.”