Kenichi Kuboya was the benefactor of a stunning late meltdown by Juvic Pagunsan of the Philippines on Sunday, posting a one-stroke victory to capture the Japan Open for his first win of the season.

With Pagunsan still out on the course, Kuboya was preparing to go home after he wrapped up the third major of the season with a 70 that included a chip in for eagle on the 10th hole at the par-71 Naha Golf Club in Okinawa Prefecture.

But Pagunsan double bogeyed the 17th and then bogeyed the 18th to put the title on a plate for Kuboya, who narrowly missed out on victory last year after losing to South Korea's Bae Sang Moon in a playoff.