Amy Yang outlasted a one-hole playoff with Hee Kyung Seo to win the KEB LPGA HanaBank Championship on Sunday in Incheon, South Korea.
Yang is the fourth first-time winner this season.
Both South Koreans shot 9-under over the three-day tournament in regulation but Yang prevailed with a birdie on the first playoff hole at the par-5 18th.
Yang, an LPGA Tour member since 2009, came close but fell short several times before Sunday. Her victory earned her a $250,000 winner's check.
"I have been waiting for this championship for a long time, and I'm really happy get it in my home country," Yang said. "I think, still, I can't believe it."
She began the day trailing co-leaders Katherine Hull-Kirk and Anna Nordqvist by one stroke but finally surged into a tie for the lead after an eagle at the par-4 15th moved her to 8-under for the tournament. With pars on the next two holes, she kept her composure and birdied the par-5 18th to force a playoff with Seo.
Both players hit errant tee-shots on the first playoff hole with Yang's finding the right rough and Seo's finding the left. Yang's tricky lie in the rough left her with a lengthy third shot. Despite the difficult third shot, both players managed to find the green in regulation but Yang sunk her 15-foot birdie putt to hoist the trophy.
Yang is the eighth Korean to win the HanaBank Championship since 2002.