Overnight coleader Komei Oda ousted South Korea's Kim Jong Duck in a playoff to capture the season-opening Token Homemate Cup on Sunday.
Kim put together a solid 4-under-par 67 but Oda regrouped from back-to-back bogeys from the sixth hole and forced a playoff after birdies on the 17th and 18th left him tied with Kim at 10-under 274 at Token Tado Country Club.
Oda held his nerve on the second playoff hole at the 18th, hitting his approach shot from the greenside rough to within three feet of the cup and making par to clinch his second career win after Kim had missed his putt for par from around six feet.
Oda's first victory since taking his maiden title at last year's Casio World Open earned him ¥26 million in prize money.
"I'm really pleased," said Oda. "I was a bag of nerves when I won my first tournament but that wasn't really the case this time in this scramble for the title.
"I missed the fairways with my drives and played the golf of a loser but got lucky at the end."