Walking up the 18 green, Choi knew he could not afford to drop a shot as that would leave the door open for Park to force a three-hole play-off with him at the Woo Jeong Hills Country Club.
The 30-year-old steadied his nerves and could not contain his delight when he watched his putt from 10-feet drop into the cup.
Choi's final round two-under-par 69 not only confirmed him as the newest champion of his National Open but also earned him a ticket to The Open in Carnoustie next month.
A fast-charging Sanghyun had earlier surmounted a late challenge when he stormed towards the finishing line with two birdies in his last four holes.
But after closing with a four-day total of 12-under-par 272 and watching Choi sign off with a winning birdie, Park eventually settled for second place at the $1,125,000 event.
(This story has not been edited by Social News XYZ staff and is auto-generated from a syndicated feed.)
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