PATTAYA (AFP) - South Korea's Amy Yang won the Honda LPGA Thailand in Pattaya on Sunday, finishing at 15-under-par 273 to hold off world number three Stacy Lewis.

Yang struck a 3-under 69 in the final round of the $1.5 million tournament at the Siam Country Club to see off Lewis from the United States, who was leading after each of the previous three rounds.

The US national tied for second place with Taipei's Tseng Yani and South Korean Lee Mi-Rim.

Twenty-five-year-old Yang secured her second LPGA Tour victory with Sunday's performance.

Her previous win was the LPGA KEB HanaBank Championship in 2013.