Victoria Mboko, just 18 and ranked No. 85, stunned No. 1 seed Coco Gauff in straight sets to become the youngest Canadian quarterfinalist at the Omnium Banque Nationale in nearly four decades.

Elena Rybakina needed more than two-and-a-half hours to stop Dayana Yastremska in Montreal.

No. 24 seed Marta Kostyuk advanced to her third WTA 1000 quarterfinal of 2025, and first of her career in Canada, with a three-set win over No. 28 seed McCartney Kessler in the Omnium Banque Nationale ...