Canadian teenager Victoria Mboko upset top-seeded Coco Gauff 6-1, 6-4 on Saturday night to reach the National Bank Open quarterfinals.

This time last year, Mboko was ranked outside the top 300. Now, the 18-year-old Canadian is into the quarterfinals of her home tournament.

Victoria Mboko's stellar run at the National Bank Open hit a new level Saturday. The Canadian rolled to a 6-1, 6-4 victory over No. 1 seed Coco Gauff of the United States, winning the women's singles match in just 62 minutes to advance to the quarterfinals at the WTA 1000 tournament.