Jason Day made a strong start to the AT&T Pebble Beach Pro-Am in California today, but the eye-catching Australians were Cameron Percy and Adam Scott.
Day had five birdies and two bogeys in his opening 69 at SpyGlass Hill course, three-under par, to sit in a tie for 31st after the first round.
The Queenslander is coming off a win in the Farmers Insurance Open at Torrey Pines that vaulted him back into the world's top 10 players.
Percy, who has limited status on the United States PGA Tour, opened with a brilliant, seven-birdie 66 at Monterey Peninsula Country Club to be tied-fifth after the first round.
The 43-year-old Victorian is just two shots from the lead held at seven-under by Americans Kevin Streelman and Beau Hossler.
Scott's return to tournament golf was rusty to say the least, the former world No. 1 shooting five-over par 77 on the Spyglass Hill course to be tied-150th overall. It is the first tournament of the calendar year for Scott, who used a conventional putter having tried his old long putter at the Australian PGA Championship late last year.
Among the big names ominously poised were Dustin Johnson (five-under), Rory McIlroy (four-under) and John Rahm (four-under).