SAN DIEGO — Phil Mickelson doesn’t lack faith in his game. He just doesn’t have an explanation for a shoddy start to his season.

One week after he had to rally to make the cut in his 2012 debut at the Humana Challenge, he didn’t come close to making the cut at Torrey Pines, getting the weekend off at his hometown event for the first time in 10 years.

“I’ve got to let it go and move on,” Mickelson said.

The Farmers Insurance Open goes forward Saturday with Kyle Stanley, a 24-year-old with the skills of a rising star, making seven birdies on the South Course to overcome a double bogey for a 4-under 68. That gave him a 130 total and a one-shot lead over Brandt Snedeker, who had a 64 on the easier North Course and is making a habit of getting into contention at Torrey Pines.

Mickelson, meanwhile, headed home to nearby Rancho Santa Fe to do a little work and get ready for the Phoenix Open next week.

What’s the problem? He’s not sure.