(CNN) -- Ian Poulter won his first European Tour event in three years on Sunday when he rode his luck to clinch the Barclays Singapore Open by a shot from China's Liang Wenchong.
The Englishman played a gruelling 30 holes in the weather-affected tournament, co-sanctioned by the European and Asian Tours, before prevailing after a nail-biting final day.
Poulter had seen a five-stroke halfway lead wiped out in just six holes of his third round on Saturday after paying the price for an aggressive approach before a thunderstorm halted play.
But he returned on Sunday morning to complete the round and carded five birdies against two bogeys to remain on course for victory, one head of Ryder Cup teammate Graeme McDowell.
Poulter stretched that lead to two shots by the sixth hole but four bogeys in the next six saw him one behind the Irishman.
The pressure, though, got to McDowell, and three consecutive bogeys allowed Poulter to regain the lead and he hung on, claiming his first European win since the Madrid Masters in 2006 with a 10-under-par 274.
"I missed some shots but that made it interesting," Poulter, whose victory will push him up towards the world's top 10, told reporters. "It was too close for comfort but I am happy to get there."
Poulter now heads to Shanghai for the WGC-HSBC Champions and is confident of carrying over his form against Tiger Woods and a world-class field.
"I'm really looking forward to Shanghai. I haven't been in the winners' circle for a few years and it's really nice to get back."
Liang proved to be his closest challenger with the former Asian number one finishing with a 70 for his best showing in Singapore since he was fourth in 2006.
McDowell finally ended with a 74 to be three off the pace in fifth, alongside Denmark's Anders Hansen and South Africa's Charl Schwartzel. Australia's Scott Hend was third, two behind Poulter, along with resurgent compatriot Adam Scott.
Scott only just made the cut but raced up the leaderboard with a third round 65 as he recovered some form after a miserable year of missed cuts.
The former world number three, who won the tournament in 2005 and 2006, carried his new-found touch into the final round with a 68 for his best result since the Sony Open in January.
World number two Phil Mickelson tied for 14th after an inconsistent week marred by too many bogeys. He now heads to Shanghai to renew his rivalry with arch-rival Woods.
Three-time Major winner Padraig Harrington will also be in China after a disappointing weekend in Singapore, where he finished tied 38th to end any realistic hope he had of finishing the year as Europe's number one.