Yani Tseng confirmed her status as number one in the world with victory at the LPGA Thailand in Pattaya.It was her third tournament win in three weeks.
Tseng shot a six-under-par final round of 66 to stretch her winning margin to five shots over Michelle Wie.
Tseng had led by one stroke over Wie and IK Kim going into the final round.
Tseng then had the lowest score of the day with seven birdies and just one bogey to record a total of 273 for 15 under par.
Second went to Wie, who shot a round of 70 to leave her one ahead of Kim in third.
Wins in the Australian Open and Australian Ladies Masters had earned Tseng the number one ranking and victory in Thailand confirmed that status.
