Rickie Fowler clinched the Korea Open on Sunday, finishing six shots ahead of runner-up Rory McIlroy.
Fowler, 22, shot a closing three-under 68 to claim his first professional title on 16 under par overall.
"It feels great to have the first win. I played well all week," said the 2010 PGA Tour rookie of the year.
Northern Ireland's McIlroy had started the final round 10 behind his American rival and carded a seven-under-par 64, having had a 73 on Saturday.
South Korea's Kim Meen-whee (71) was third at 10 under, and countryman Y E Yang (75) followed at five under.