The No. 6-seeded Gauff blamed her footwork, mindset, and defensive gameplay in the second set for her loss.
Doha was also Swiatek's first title last year, and the start of a 37-match winning streak, which comprised her second French Open title win.
Victoria Azarenka beat No. 3 seed Jessica Pegula 6-4, 6-1 to return to the semifinals at Melbourne Park for the first time since those triumphs in 2012 and 2013.
The 26-year-old Garin improved to 3-1 lifetime against Ruud, a two-time Grand Slam finalist, since they first met on tour in 2019 at Sao Paulo, Brazil.
Jessica Pegula detailed for the first time the medical crisis that abruptly removed her mother from the public eye and suggested that she may not resume the same level of involvement in the family’s sports franchises.
Wimbledon champion Elena Rybakina has advanced to the Australian Open semifinals with a 6-2, 6-4 win over former French Open champion Jelena Ostapenko on Tuesday.
The three-time Grand Slam champion improved to 6-0 against the 18-year-old Gauff, and each victory has been in straight sets.
Pegula's had a winding journey in professional tennis and, at the Australian Open, she is hoping to add by far her most significant trophy yet.
Fifth-seeded Aryna Sabalenka defeated Belinda Bencic 7-5, 6-2 on Monday to reach the quarterfinals of the Australian Open for the first time.
The third-seeded Pegula needed 65 minutes for a 6-0 6-2 victory over Marta Kostyuk. Seventh-seeded Gauff beat Bernarda Pera 6-3 6-2 to reach the last 16.
Novak Djokovic was placed on the opposite side of the draw to defending champion and top-seeded Rafael Nadal at the Australian Open on Thursday, meaning they...
Taylor Fritz gave the U.S. an unassailable 3-0 lead in the best-of-five matchup when edging former Wimbledon finalist Matteo Berrettini 7-6 (4), 7-6 (7).
Lucia Bronzetti clinched the finals berth for Italy by beating Valentini Grammatikopoulou 6-2 6-3 to give her nation an unassailable 3-1 lead.
Pitted against fellow top 10-ranked rival Hurkacz, the 25-year-old Fritz prevailed 7-6(5) 7-6(5) to give the Americans an unassailable 3-0 lead in the...
World number 4 Coco Gauff lost out to Daria Kasatkina whereas the number one seed, Iga Swiatek cruised into the semi-finals of the WTA Finals event.
Frances Tiafoe managed the tricky task of following up the biggest win of his career, against Rafael Nadal in the fourth round, with a win over Andrey Rublev.
The other women's semifinal is No. 5 Ons Jabeur against No. 17 Caroline Garcia, who eliminated 18-year-old American Coco Gauff.
Simona Halep, 15th seeded, won the tournament in Montreal in 2016 and 2018. She will play Beatriz Haddad Maia in the final.
Caroline Garcia and Kristina Mladenovic defeated the pair of Coco Gauff and Jessica Pegula in three sets in the final.
Sania Mirza and Lucie Hradecka produced some high-quality tennis but lost 4-6 3-6 to Coco Gauff and Jessica Pegula in the third round.
After losing the first set 6-1 to Madison Keys, Veronika Kudermetova made a superb comeback and won the remaining two sets 6-3, 6-1.
Japanese Naomi Osaka is in a championship match for the first time since the 2021 Australian Open. Osaka will meet 2 Iga Swiatek in the final.
Ashleigh Barty, who defeated Jessica Pegula in straight sets on Tuesday, will face Madison Keys in the semifinal of Australian Open 2022.