India's Jeev Milkha Singh overcame personal tragedy to win the season-ending Nippon Series JT Cup on Sunday while Ryo Ishikawa tied for fifth.
Singh shot a 4-under-par 66 to finish at 12-under 268 at Tokyo Yomiuri Country Club for a two-shot victory, his second Nippon Series title in three years and fourth career win on the Japanese tour.
The 36-year-old had made a last-minute decision to enter the tournament at the urging of his wife, who delivered stillborn what would have been the couple's first child at a local hospital earlier in the week.
"I'm going to dedicate this win to her (my wife)," Singh said. "God has been kind. She is healthy now. Better things are on the way."
Ishikawa could only manage a 70 after three birdies and as many bogeys and closed in a tie for fifth with Muto (71), four shots behind Singh.
"I made a lot of mistakes today. I didn't want to say this, but it was my worst round in four days," said Ishikawa, who finished fifth on the money list.