Ryan Moore birdied the first play-off hole to claim the title as he and Gary Woodland returned on Monday morning to complete the CIMB Classic in Kuala Lumpur.
Bad weather meant the tournament could not be completed on Sunday and with with Moore and Woodland tied on 14 under they came back to decide a winner at the par-five 18th.
Woodland, who missed a putt for the title was in trouble when he found the rough with his second and, while Moore was on the green in three, he was again in trouble as his approach went right.
Woodland chipped impressively to two feet, but Moore holed a four-foot birdie put to claim the title.
Moore told pgatour.com: "It's been a fun week. I started with a bit of the flurry on the first day, making a bunch of birdies, then cooled down a little bit but was able to do what I had to do to get to this point.
"Fortunately I hit a great shot there and left myself a nice short putt.
"I've been putting in the effort, putting in the time and it's nice to see it pan out."