Listowel's Corey Conners shot a 1-under 70 in his opening round at the OHL Classic at Mayakoba in Playa del Carmen, Mexico.
The 25-year-old is tied for 56th at the PGA Tour event.
Nick Taylor and Ben Silverman are the low Canadians at 3-under 68 and tied for 21st.
Patton Kizzire leads the tournament at 9-under 62.