Felipe Aguilar produced a breathtaking back nine to storm to The Championship title at Laguna National in Singapore.
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Aguilar began the day four shots off the pace and made two birdies in his opening nine holes before his round came to life after the turn.
The Chilean recorded a further six birdies, but it was his eagle on the last that took him to 22 under par overall and a one-shot victory over American David Lipsky and Anders Hansen of Denmark.
"Yesterday I thought I had no chance," Aguilar said.
"Today I said to my caddie on the 17th, after I made a birdie, 'if we can make a birdie on 18 we can put some pressure on the leader' and he said 'what about making a two?'.
"I said to him the way I had been hitting the ball I could well do. It's a long story but I made two on 18, and what a beautiful way to finish."
Aguilar came home in 28 to record a 10 under par final round and seal his second victory on the European Tour, with his other success coming in the Enjoy Jakarta Astro Indonesia Open in February 2008.
"It's been a bit of a drought for six years," he added.
"I've lost a couple of times in play-offs and had a couple of top threes and top fives, but never was able to get the round going on the last day, so it is nice to finally do it."
Lipsky can feel aggrieved to finish runner-up after carding a bogey-free 65, while Hansen, who was joint overnight leader, recorded a five under par round for the third time this week.
Rahil Gangjee of India finished fourth on 19 under par overall, while England's Chris Wood was a further shot back after a round of 67, with compatriot Tommy Fleetwood finishing in a tie for eighth.