Hideki Matsuyama, who plays primarily on the U.S. PGA tour, won his first domestic event of the year on Sunday, beating Hiroshi Iwata in a playoff to capture the JGTO's Dunlop Phoenix title.Hideki Matsuyama, who plays primarily on the U.S. PGA tour, won his first domestic event of the year on Sunday, beating Hiroshi Iwata in a playoff to capture the JGTO's Dunlop Phoenix title.