Phil Mickelson on Thursday did something he had not managed in more than two decades when he hit every fairway in the first round at the Pebble Beach Pro-Am.

The unusually accurate driving helped the five-time major champion to a six-under-par 65 at Monterey Peninsula, one of three courses used at the event.

Mickelson trailed American leaders Brian Gay and Scott Langley, who also played at Monterey, by one stroke.