SCOTTSDALE, ARIZ. ? Despite shots that sailed into the desert and in the water, Phil Mickelson is a winner again on a course that still feels like home.

Mickelson won the FBR Open by five strokes on Sunday, the largest margin of victory in his 24 PGA Tour triumphs.

“It’s a lot of fun for us to come back,” he said. “Even though we moved away three years ago, we still consider it home.”

Mickelson’s adventures off the fairway were offset by brilliant shots that led to four birdies in a final round 3-under 68. He never led by fewer than three strokes Sunday, then capped his round with a 26-foot birdie putt from the fringe on the 18th to the wild cheers of the friendly throng.

“I wasn’t really trying to make it,” Mickelson said. “I was trying to just get it close, and it fell in.”

The victory in the $5.2 million event was worth $936,000, about $700,000 more than Mickelson earned when he won the same tournament nine years ago.

With chants of “A-S-U!” and “Go Lefty!” from the crowd, Mickelson finished at 17-under 267 on the Tournament Players Club course. Scott McCarron and Kevin Na, at 21 the youngest player on the PGA tour, tied for second at 272. McCarron shot his second consecutive 65, and Na shot 69. Na faltered before rallying with birdies on the 14th and 17th for his best finish in two years on the tour.

Steve Flesch, Tim Herron and David Toms finished at 273. Toms would have finished in second place, but double-bogeyed the 18th.

A three-time NCAA champion at Arizona State who lived in Scottsdale until December 2001, Mickelson won the FBR — formerly the Phoenix Open — for the second time.