Potter holed a chip from behind the green for birdie on the par-3 seventh hole to build a two-shot lead over Dustin Johnson, and he didn't make another mistake the rest of a breezy afternoon at Pebble Beach.
He closed with a 3-under 69 for a three-shot victory over Johnson, Phil Mickelson, Jason Day and Chez Reavie.
Johnson lost a share of the lead with a tee shot that sailed over the cliff on the par-3 fifth and never caught up. Johnson completes one full year at No. 1 in the world next week.
