Louis Oosthuizen won the Malaysian Open on Sunday, a week after losing a playoff to Bubba Watson in the Masters.
The South African completed a 3-under 69 in the rain-delayed third round, then closed with a 68 for a three-stroke victory over Scotland's Stephen Gallacher.
"I was a little surprised to win here after that," Oosthuizen said. "I thought I would be a lot more tired. My golf was a bit up and down in the morning at the end of the third round, but I settled down and played well later."
The 2010 British Open champion finished at 17-under 271 on Kuala Lumpur Golf and Country Club's West Course.
Gallacher shot a 70. American David Lipsky also closed with a 70 to tie for third at 12 under with Spain's Rafael Cabrera-Bello and England's Danny Willett. Cabrera-Bello and Willett shot 71.
The tournament was sanctioned by the European and Asian tours.