Lee Westwood refused to let bad weather halt his pursuit of another win in Asia as he fired a brilliant bogey-free 68 to claim the Maybank Malaysia Open title.
Thunder and lightning stopped play for four hours with Westwood four clear of the field but he didn't let the break disrupt his flow and cruised to his 13th win in Asia, eventually finishing on 18 under par.
South African Louis Oosthuizen, Austria's Bernd Wiesberger and Belgian Nicolas Colsaerts finished in a tie for second, seven shots behind Westwood on 11 under.
Englishman Danny Willett impressed with a round of two under to sit one shot further back, but fellow countryman Andy Sullivan had a forgettable afternoon in Kuala Lumpur after he failed to make the most of being in the final group. He carded a five-over 77 but clung on to a top-10 finish.
It was as dominant a performance Westwood could have hoped for after the disappointment of contending at Augusta failed to materialise into a Green Jacket yet again.
Having let a four-shot lead slip to just one after round three, the 40-year-old former world number one quickly restored that after just three holes of Sunday's play when playing partner Sullivan found water on the second on his way to a triple-bogey seven.
Westwood made his first gain of the day on the par-five third to stretch his lead at the top, before parring his way to the turn for an outward 35.
He birdied the next to further increase his already mammoth advantage at the top of the leaderboard, before the klaxon sounded with the final group on the long par-four 12th.
Four hours were lost due to the threat of thunder and lightning in the surrounding area, but Westwood kept his composure and showed no signs of nerves when they returned to the course.
He immediately made another birdie on 13 and followed it up with four pars in succession. A birdie at the par-five last saw him get to 18 under, seven clear of his nearest competitors.
It was his first win in nearly two years, and the perfect remedy for last week's failure to mount a real challenge last Sunday in Georgia.
With 40 wins worldwide, it's easy to see why so many are left scratching their heads as to why he's yet to win a major title. His much improved short game could see that change this season, but time is against him if he's to fulfil his undoubted potential.
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