The Farmers Insurance Open started with a bang on Thursday, headlined by Tiger Woods' dramatic return to the PGA Tour.
While the 14-time major champion, making his first Tour start since August 2015, was the main attraction, Olympic gold medallist Justin Rose stole the show as he took a one-stroke lead at Torrey Pines.
Englishman Rose, who played the easier North Course in round one, took advantage of the situation by firing a seven-under-par 65 complete with two eagles on his back nine.
After finishing runner-up at the Sony Open in his first 2017 start, Rose is one shot clear of Adam Hadwin atop the leaderboard.
Hadwin, who became just the eighth player in PGA Tour history to shoot a 59 last week at the CareerBuilder Challenge, holed an impressive six-under 66 on the more difficult South Course.
The Canadian had seven birdies and one bogey.
Charles Howell III, Gary Woodland, Brad Fritsch, Beau Hossler and Trey Mullinax are a shot further back.
Meanwhile, Woods capitulated late as he left himself with plenty of work to do.
Woods opened his Farmers Insurance Open campaign with a four-over-par 76 on Thursday, after holing four bogeys and a double-bogey on the back nine as the heralded group of himself, Jason Day and Dustin Johnson failed to impressed.
It wasn't their best day ...-- PGA TOUR (@PGATOUR) January 27, 2017
But they enjoyed the 18th hole.
Birdie. Birdie. Birdie. pic.twitter.com/X7mMGts888
World number one Day carded a one-over-par 3 with a plethora of missed puts insight eight feet, while Johnson posted a first-round 72 to be alongside Rickie Fowler.
Elsewhere, Phil Mickelson and Hideki Matsuyama - who bogeyed three of his last four holes - finished one under.