Listowel's Corey Conners was consistent at the Quicken Loans National, finishing at 2-under 278.
The 26-year-old PGA Tour rookie shot a 69 in his opening round; an even-par 70 in both his second and third rounds; and a 69 in his final round.
He finished tied for 41st along with David Hearn and together they were the low Canadian's at the event.
Francesco Molinari won the event with a 21-under 259.
Tiger Woods had his second best finish on the tour this year, tied for fourth at 11-under 269.