Listowel's Corey Conners shot a 1-over-73 in the first round of the Memorial in Ohio.
Conners was 1-under after the first nine holes but three bogeys on the second nine of the day didn't improve the scorecard. He's the top Canadian and in a tie for 42nd.
American Tony Finau is the leader at 6-under.
And Tiger Woods is back, he shot a 1-under in his first round at a PGA tour event in five months.