Elmira's Garrett Rank put on a stellar performance at the RBC Canadian Open, shooting a 3-under 69 in his opening round.
Rank is playing in the tournament as an amateur and is in a tie for 11th place. World number one ranked golfer Jason Day is also in 11th place.
Amateur Jared du Toit is the highest ranking Canadian at the tournament with a 5-under 67.
Americans Luke List and Dustin Johnson share first place atop the leaderboard at 6-under 66.
Listowel's Corey Conners finished the day at 3-over 75. He is tied for 97th place.