Four-time major champion Naomi Osaka powered into the U.S. Open fourth round on Saturday with a 6-0, 4-6, 6-3 win over 15th seed Daria Kasatkina to continue her best Grand Slam run since 2021.

Osaka lit up Louis Armstrong Stadium in broad daylight, turning her third-round clash into a showcase of power and composure.

The Japanese star dominated early, absorbed a brief second-set wobble, and closed out the win to set up a fourth-round showdown with American third seed Coco Gauff.

¡°Honestly, I was trying to tell myself to stay calm. I was so shaky today but I¡¯m glad that it was an entertaining match,¡± Osaka said.

¡°Whenever I come here it feels like home and you guys are very involved and I feel grateful, thank you.¡±

Osaka looked sharp from the start, putting pressure on Kasatkina with an early break gifted to her by a double fault before racing into a 3-0 lead.

Kasatkina¡¯s delivery deserted her in the first set with eight double faults and only 25% of first serves landing as Osaka coolly dished out a bagel in 22 minutes.

Kasatkina, however, forced a decider after a scrappy second set riddled with breaks. Errors crept in on both sides and Kasatkina steadied herself enough to level the match.

Osaka hits a backhand during her win over Kasatkina on Saturday.
Osaka hits a backhand during her win over Kasatkina on Saturday. | REUTERS

Osaka, however, regained her composure in the third set.

She saved a break point with two blistering winners and surged into a 3-1 lead before closing out the match to stay on course for a third U.S. Open title.

The 23rd seed admitted the win had felt more like a battle than a display of perfect tennis.

¡°I don¡¯t think I played that well, but I think mentally I was just trying to fight for everything,¡± she told reporters. ¡°I know that it was a little bit of an emotional roller coaster.¡±

In reaching the fourth round of a major for the first time since her 2021 Australian Open title, Osaka reflected on the patience it has taken to rebuild.

¡°After Wimbledon I just tried not to think about results anymore and focus on each match,¡± she said.

¡°I¡¯m pleased. It¡¯s not a journey I pictured, but I¡¯m glad to be living it.¡±

Looking ahead to a her clash with 2023 champion Gauff, Osaka could not help but remember their first meeting at Flushing Meadows six years ago.

¡°I knew she was going to be a great player, which I was right,¡± she said. ¡°She was 15 at the time and handled herself so well. To be playing her again now feels really special.¡±