A South Korean teenage amateur booked himself a place at golf's biggest event -- the US Masters -- by storming home the winner in the inaugural Asian Amateur Championship in China Sunday.

Seventeen-year-old Han Chang-Won of South Korea also earned himself a ticket to the International Final Qualifying for the 150th Open Championship at St Andrews, courtesy of his convincing victory in Shenzhen.

Leading by two shots overnight, the youngster crushed the competition with a final-round two-under-par 70 at Mission Hills Golf Club's World Cup Course.

Han finished with a 72-hole total of 276 (-12), five shots in front of compatriot and playing partner Eric Chun, who could only manage a 73 final round.

Chun joins his countryman in the final qualifying stage for next year's Open, the 150th anniversary of the championship.

Three players -- South Korea's Kim Meen-Whee, Peter Spearman-Burn of New Zealand and Jordan Sherratt from Australia -- shared third on 282, with Australia's Matthew Giles sixth, one shot further back on five-under-par 283.

Han said he was thrilled with the victory.

"I knew I was leading by five or six after the first nine holes, but I was trying not to think about the result," he said.

"Anything can happen in a round of golf and I was very nervous towards the end. I have to admit that it was the thought of playing in the Masters that made me nervous."

The lead grew from his overnight buffer of two strokes when Chun made a bogey at the first. Han picked up two more shots at the par-five second with a timely eagle.

A bogey at the fourth briefly saw the lead go back to two shots from a fast-charging Spearman-Burn, who was four-under on the day after eight holes, and Australia's Giles, who also started quickly and was at seven-under for the round after 11 holes.

However, the teenager then added birdies at six, seven, 11 and 12 to build his lead to six shots. Despite bogeys at three of the final five holes, his domination was complete.