Oct 30 (Reuters) - PGA Tour rookie Cody Gribble blew away the field with a closing seven-under 65 to win the Sanderson Farms Championship by four strokes in Mississippi on Sunday.
Gribble, in his eighth start on tour, bolted clear of a tight leaderboard with a hat-trick of birdies from the 15th hole at the Country Club of Jackson.
The left-handed Texan finished at 20-under 268, with compatriots Chris Kirk (70) and Luke List (70) and Englishman Greg Owen (68) equal second on 16-under.
Gribble, 26, barely earned his card to play on the PGA Tour this season, after finishing 40th on the secondary tour ranking.