Canadian Brayden Schnur was the Canadian with the best chance at qualifying for the Rogers Cup men's singles tournament after a straight-sets victory over Germany's Ruben Bemelmans on Saturday.
The Toronto native dispatched Bemelmans 6-4, 6-3 in 1 hour 19 minutes 49 seconds in qualifying action in Montreal.
Unfortunately, he lost to Taiwan's Yen-Hsun Lu in the second qualifying match on Sunday.
Other Canadians also didn't fare so well.
Toronto's Peter Polansky lost 7-6 (4), 7-6 (5) to American Rajeev Ram, firing just three aces to Ram's 16.
David Volfson fell 6-1, 6-1 to Lu.
Kelsey Stevenson dropped a 6-2, 6-1 decision to Hyeon Chung.
Isade Juneau lost 6-1, 7-5 to France's Nicolas Mahut.
On the women's side in Toronto, Croatia's Mirjana Lucic-Baroni topped the hometown Katherine Sebov 6-4, 6-1.
Colombia's Mariana Duque-Marino got past Montreal's Charlotte Robillard-Millette 6-4, 6-3.
Australia's Jarmila Gajdosova beat Toronto's Heidi el-Tabakh 6-4, 6-2.
Olga Govortsova defeated Bianca Andreescu of Mississauga 7-5, 6-0.
Slovakia's Polona Hercog beat Canadian Natasha Irani 6-2, 6-1.
American Irina Falconi topped Toronto's Sharon Fichman 6-3, 6-1.