Amy Yang of South Korea earned her third Honda LPGA Thailand championship on Sunday after a nervy showdown at the final hole. Yang birdied on the 18th, which meant Minjee Lee had a chance to force a play-off with an eagle. Lee fell short on the day and Yang held on to win by one stroke. Spain's Carlota Ciganda had a fine day as she carded a 63 to hold third place at Siam Country Club. Jenny Shin shot a decent 17-under overall for fourth spot, just in front of fellow South Korean Eun Hee Ji. Canada's Brooke Henderson held sixth position at 15-under, followed by Australian Open winner Nelly Korda who managed a final-round 70.