KUALA LUMPUR, April 20, 2014 (AFP) - The Englishman, who saw his lead trimmed to a single stroke on Saturday, cut a composed figure going into the final round as he notched a clean-card score, including four birdies, to finish at four-under 68 and reclaim the title he last won in 1997.
A four-hour delay due to torrential rain at the Kuala Lumpur Golf and Country Club did nothing to deter the former world number one, who carded two birdies after the delay.
He completed his win in style when he holed a 20-foot birdie putt on the last for an 18-under-par 270 winning total to celebrate his first title since the 2012 Nordea Masters.
The 40-year-old was visibly relieved to end his two-year drought and claim a 41st career title, including a 13th on Asian soil.
"Yes, this win has come at an important time. I am delighted to win. You have to play really well to win any tournament by seven shots and I played well this week without making many mistakes," he said.
"I always play well in Asia, especially Malaysia. I just kept my foot down, tried not to commit any bogeys and give the other lads any chance," added Westwood who claimed a prize purse of US$458,330.
The $2.75 million tournament, co-sanctioned by the Asian and European Tours, saw three runners-up including Austrian Bernd Wiesberger who carded the day's best score of five-under 67.
Also sharing second spot were South Africa's Louis Oosthuizen and Nicolas Colsaerts of Belgium, ending the tournament on 11-under.
Oosthuizen, the 2010 Open Championship winner, threatened briefly by shooting four birdies in his first seven holes but a pair of bogeys on nine and 10 dashed his hopes.
Scores after the fourth and final round on Sunday in the $2.75 million Maybank Malaysian Open at the Kuala Lumpur Golf and Country Club:
270 - Lee Westwood (ENG) 65-66-71-68
277 - Bernd Wiesberger (AUT) 69-71-70-67, Louis Oosthuizen (RSA) 72-68-69-68, Nicolas Colsaerts (BEL) 66-69-72-70
278 - Danny Willett (ENG) 70-66-72-70, Rikard Karlberg (SWE) 72-69-67-70, Julien Quesne (FRA) 68-69-69-72
279 - Pablo Larrazabal (ESP) 74-68-70-67, Thomas Pieters (BEL) 75-67-69-68
280 - Anirban Lahiri (IND) 72-72-66-70, Eduardo de la Riva (ESP) 69-68-71-72
281 - Alvaro Quiros (ESP) 73-69-71-68, Jbe Kruger (RSA) 68-71-72-70, Jason Knutzon (USA) 75-67-69-70, Andy Sullivan (ENG) 70-67-66-78
282 - Michael Hoey (NIR) 67-73-73-69, Richard T. Lee (CAN) 69-76-67-70, Scott Hend (AUS) 70-70-72-70, Gregory Bourdy (FRA) 73-70-69-70, Wade Ormsby (AUS) 70-71-69-72, Ricardo Santos (POR) 67-71-70-74, Masahiro Kawamura (JPN) 68-70-70-74