He shot a final round five-under-par 66 for a tournament total of 16-under and a commanding six-shot victory at Namseoul Country Club, in Seoul.

Korea’s Minhyuk Song, an amateur, and Junghwan Lee tied for second following rounds of 64 and 70 respectively, in an event reduced to 54 holes after Saturday’s third round was cancelled because of poor weather and a waterlogged course.

Their compatriots Jaekyeong Lee (66) and Eunshin Park (67) tied for fourth, one shot back, while defending champion Bio Kim, also from Korea, finished in a tie for sixth, an additional stroke behind, following a 70.

Until this week, Jung was best known as one of the biggest hitters in Korea – he topped the driving distance stats on the Korean PGA Tour last year – and had only finished in the
top-10 twice in domestic events since turning professional three years ago.

That all changed this week with an inspired and unexpected victory, that has helped him live up to his nickname the ‘Korean Hulk’.

He led after the opening day with a 63 and had a two-shot advantage after his second round 68, which he started today’s round with after yesterday was washed out.

A brilliant front nine of five-under-par 31, with an eagle – the result of holing his bunker shot on the par-5 4th – and three birdies, put him six ahead at the turn, before he stylishly closed out the event with nine straight pars on the second half. 

“I won a big tournament wire to wire, so I feel good,” said the 23-year-old, who won US$222,222.

“I sensed the victory with an eagle on the 4th hole. After that, I felt at ease. I used my driver on nine holes today, I used it often because I was confident.”

“My putting has changed a lot, I had a lot of worries before, but it's solved, the anxiety is gone.”

“I played very well today; both my putting and shots were so good that I quickly forgot any disappointment after I made a mistake,” Song said following his runner up finish.

“As an amateur I'm thrilled to finish in second place. Last year I was tied for the lead after two rounds, but it's great to finish second in the final round.”

He said he plans to turn professional this year and is hoping to play in the Asian Tour Qualifying School.

Junghwan Lee was equally content with his week, and conscious that the runaway winner was just too good.

“I missed getting the trophy, but Chanmin Jung played very good golf! Personally, I'm satisfied, I consistently made birdies this week. My game is very good now, I wonder if my shots have ever been this good after I spent the winter training in Thailand.”

Zach Murray was the best of the Australians in a tie for 31st.