After failing to make the cut in each of his first five events this PGA Tour season, Hank Lebioda is alone atop the leaderboard after Thursday's opening round of the AT&T Pebble Beach Pro-Am.

Lebioda, 29, has never won on the PGA Tour before, but he looked right at home on the Monterey Peninsula Country Club course, collecting nine birdies and one bogey for an eight-under 63.

He shot to the top of the leaderboard after a blistering stretch to open his back-nine, with five birdies and two pars from seven holes.

Unfortunately for Lebioda, that will be the only time he plays at Monterey Peninsula as the tournament is spread across three courses. Every player will also get a round at Spyglass Hill and the Pebble Beach Golf Links, with the latter hosting the final round after a cut at the end of Saturday's action.

Of the seven players to shoot six under or better, six of them played at Monterey Peninsula, which makes Chad Ramey's seven-under 64 at Pebble Beach stand out.

Ramey is joined in a tie for second with fellow American Kurt Kitayama and England's Harry Hall, while France's Martin Trainer and Australia's Aaron Baddeley are joined by the USA's Eric Cole one further stroke back at six under.

The big names were quiet on the opening day, with world number 11 Viktor Hovland the best performer of the rankings' top-40 at two under.

Jordan Spieth is joined by fellow major champions Danny Willett and Matt Fitzpatrick at one under, while Kevin Kisner shot himself out of contention at four over.