Jimmy Walker was just cruising along with nine pars on the front side of Baltusrol in the final round of the 2016 PGA Championship. Then he got to No. 10 and hit a 4-iron into the right-side bunker from about 210 yards away. An up-and-down would have been good for where he was in the bunker.

He did that one better with this crazy sand shot for his first birdie of the day.

The make gave him a momentary two-stroke lead before Jason Day answered a few minutes later with a long birdie putt of his own. At the time, Walker was 12 under with eight holes to go while Day was 11 under.

It got better for Walker though. He made a 30-foot birdie putt on No. 11 to extend the lead to two over Day. After not doing much for the first two hours of play, Walker is suddenly shooting fireworks all over the course with two par 5s still to come at the end of the back nine.

It's starting to look like a two horse race between Walker and Day down the back nine.