Henrik Stenson tumbled from the top of the leaderboard with a quadruple-bogey 8 on 18.
Not exactly a cause for celebration on his 36th birthday. The Swede says he doesn't think he's ever finished with an 8.
Stenson's problems started off the tee, when his drive hooked left and into some bushes. He thought he'd found enough of a gap to get out, but the ball got caught up and landed on some trampled-down pine straw. Rather than take the easy out, he gave it a go with a 4-iron and carved it up the fairway.
His next shot flew the green, and he chunked the chip shot coming back. When he finally got on the green, he missed about a 3-footer for triple-bogey.
He finished at 1-under 71.