The 2025 WTA Canadian Open has seen a mix of surprising upsets and dominant performances, with Iga Swiatek's unexpected exit and Naomi Osaka's commanding victory grabbing headlines.
Iga Swiatek, the Wimbledon champion and world No. 3, was stunned by Clara Tauson in the fourth round, losing 7-6 (7/1), 6-3. Tauson, ranked 19th, secured her quarterfinal spot against Madison Keys after a challenging match against Swiatek, who struggled to find her rhythm. Swiatek, playing her first tournament after her Wimbledon victory, appeared "out of sorts from the start" on a breezy center court. She fell behind early and couldn't convert break chances in the eighth game, allowing Tauson to take a 5-3 lead in the first set. Although Swiatek rallied to win the next three games, Tauson held her nerve to force a tiebreaker, which she dominated, capitalizing on a Swiatek double fault to win the set. In the second set, another double fault from Swiatek gave Tauson a crucial break and a 5-3 lead, which she converted to secure the match. This victory marked Tauson's first win in four career meetings with Swiatek. Tauson's win snapped Swiatek's nine-match winning streak. This is Tauson's fifth win against a top-10 player and her third of the season.
Meanwhile, Naomi Osaka cruised into the Canadian Open quarterfinals with a dominant 6-1, 6-0 victory over Anastasija Sevastova in just 49 minutes. This was the second-fastest win of Osaka's career. After facing a break point in the opening game, Osaka won the next 11 games, defending two more break points in the first set. In the second set, she dropped just four points, with only one on her serve, completing the set in 21 minutes. Osaka's commanding performance included winning 72% of her service points and 71% of her return points, converting all five break opportunities. Osaka will face the winner of the match between American Amanda Anisimova and Ukrainian Elina Svitolina in the quarterfinal. This victory marked Osaka's first quarterfinal appearance at the WTA 1000 or Grand Slam level since Doha in 2024. It is the first time that Osaka has conceded just one game or fewer in a completed match since she defeated Danielle Collins 6-1 6-0 in the second round in Beijing 2018. Osaka is guaranteed to reach world No. 34, her best ranking since February 2022.
Madison Keys also secured a spot in the quarterfinals after a comeback win against Karolina Muchova, 4-6, 6-3, 7-5. Keys saved two match points en route to her victory. After losing the first set, Keys rallied to win the second and ultimately clinched the match in a hard-fought third set. Keys will face Clara Tauson in the quarterfinal.
In another notable result, Canadian teenager Victoria Mboko stunned top-seeded Coco Gauff with a 6-1, 6-4 victory to reach her first WTA 1000 quarterfinal. Mboko will face Jessica Bouzas Maneiro in the quarterfinal.
These results set the stage for exciting quarterfinal matchups at the Canadian Open, with Osaka's resurgence and Tauson's upset win highlighting the unpredictable nature of the tournament.