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Jason Day's remarkable 12-month run came to an unceremonious ending at Firestone today in the time it took him to play four disastrous holes.
Tied for the lead in the Bridgestone Invitational as he stood on the tee at the par-five 16th hole, Day had a three wood in his hand and a strong grip on the trophy, despite a bogey at the 15th where he lipped out.
His main challenger was Dustin Johnson, the US Open champion, a hole ahead.
But Day, who had looked imperious to that point, imploded.
His last four holes were bogey, double bogey, par, bogey, giving back four shots to the field.
With seven wins in the past year, the Australian has seemed bulletproof at times. But golf has a funny way of getting even. It has been some time since he so comprehensively threw away a tournament win, although he will head to the Open Championship at Royal Troon with some demons in his psyche.
Not even a bogey at the last, when his drive went left and his approach clipped a tree, could stop him.
It was his second win in succession, the belated arrival of a megastar of the game.
"I feel great, he said. "I feel like my game is where it has been all year, I feel like I've been playing really solid all year, driving it great, wedging it good. It's just I haven't been putting quite as well as I'd like to, and the last couple of weeks I've putted a bit better and the game shows it.''
Adam Scott closed with a 68 to finish tied-10th, and Matt Jones also finished strongly to tie for 16th.