Corey Conners finished the RSM Classic in Sea Island, Georgia in a tie for 23rd.
The Listowel native finished with a final score of 12-under 270 and was seven shots back of Charles Howell III and Patrick Rodgers who needed two playoff holes to determine the winner.
Howell won it with a birdie on the second playoff hole.
Conners final round of the tournament was his best; a six-under 64 that included six birdies.
David Hearn was the low Canadian at 13-under 269 and tied for 15th.