PATTAYA : Taiwan's Yani Tseng clinched victory the Honda LPGA Thailand tournament on Sunday in a thrilling performance that showed why she is the world's number one women's golfer. Tseng, who was the defending champion in the $1.5 million event, fired a six-under-par 66 to edge out Japan's Ai Miyazato by one stroke. Korea's Shin Ji-Yai shot 67 for third place.