PALM BEACH GARDENS, Florida (AP) ― Russell Henley made good on his second chance at the 18th hole Sunday and won the Honda Classic after a wild day that began with Tiger Woods walking off the course with a back injury and ended with a four-man playoff.

The closing hour at PGA National was a series of blunders by the contenders ― and even the winner.

Henley was in a three-way tie for the lead, 40 yards left of the flag on the par-5 18th in regulation, when he chunked a chip so badly that it only got halfway to the hole. He had to two-putt for par, and then watched as Rory McIlroy nearly made a great escape from an otherwise bad afternoon. McIlroy, who lost a two-shot lead, hit a 5-wood from 236 yards to just inside 12 feet for an eagle and the win. It narrowly slid by on the right.

In the playoff, Henley was the only player to reach the 549-yard hole in two, and he two-putted from about 40 feet for birdie. Ryan Palmer missed a 10-foot birdie putt. McIlroy went from the back bunker to the front collar and had to scramble for par, and Russell Knox laid up and missed a 20-foot birdie attempt. “This isn’t going to sink in for a while,” Henley said.