SAN DIEGO — Bubba Watson has such a tough time keeping his mind from wandering away from golf that he walks with his head down. If he had bothered to look around on the final day at the Farmers Insurance Open, he might not have believed what he saw.

There was Tiger Woods, who had won the last five times he played Torrey Pines, finishing 15 shots out of the lead.

An even bigger surprise was Phil Mickelson, whose reputation has been built on his appetite for taking risks. He was standing 228 yards away in the light rough on the par-5 18th when he pulled out a wedge to lay up, even though he needed eagle to force a playoff.

Mickelson had his caddie tend the flag from 72 yards away — a smart move to keep the ball from hitting the stick — and his shot covered the flag, landed behind the hole and trickled to the cup until it stopped 4 feet away.

Watson missed it all.

He was in the scoring trailer Sunday afternoon, having made clutch putts on the last two holes for a 5-under 67. Watson knew he had a two-shot lead over Mickelson.

“I’m trying not to get too emotional,” Watson said.