After a disappointing final round, Weyburn’s Graham DeLaet finished tied for 22nd at 6-under par at Colonial.
Earlier in the tournament, DeLaet was just one shot behind the leader, Matt Kucher.
But DeLaet struggled with his short game on the back nine Saturday, and shot 4-over par Sunday.
Boo Weekley sunk a 22-foot putt for birdie to finish at 14 under for his first PGA Tour victory in five years.
With files from The Associated Press