Victoria Mboko def. Naomi Osaka 2-6, 6-4, 6-1

Victoria Mboko, an 18-year-old Canadian wild card, won the National Bank Open title on Thursday night, completing another comeback to defeat four-time Grand Slam champion Naomi Osaka in three sets. The win capped a dream run for the teenager, who began the year ranked No. 333. Over the past two weeks on home soil, Mboko has developed a reputation for resilience, coming from a set down to win on three separate occasions.

Against Osaka, Mboko struggled to find her rhythm early, committing 22 unforced errors as the Japanese star wrapped up the opening set in just 38 minutes. The second set was chaotic, with 7 breaks of serve, but Mboko seized control with a break to lead 5–2. Serving for the set, she faltered with 3 double faults to hand the break back, but quickly regrouped to hold in her next service game and force a decider. In the third set, leading 2–1 in what became the most important game of the night, Mboko saved four break points to keep her advantage and never looked back.

The match featured 13 service breaks in 25 games, with Mboko converting an impressive 8 of her 9 break-point chances. Even more remarkably, she did it while playing with a stiff and swollen wrist after falling in her semifinal match the previous day—a fall that sent her to the hospital for X-rays and an MRI.

In her run to the title, Mboko defeated four major champions, including a dominant 6–1, 6–4 win over top seed Coco Gauff, as well as victories over Osaka, Sofia Kenin, and Elena Rybakina. With her first WTA Tour title, she will rise from No. 85 to No. 25 in the world rankings, joining Faye Urban (1969) and Bianca Andreescu (2019) as the only Canadians to win the Montreal event in the Open era.