Naomi Osaka overpowers Japanese 17-year-old compatriot in first round of home tournament

Naomi Osaka made a commanding return to the Japan Open on Monday, defeating compatriot Wakana Sonobe 6-0, 6-4 to advance to the second round. The four-time Grand Slam champion, returning to her hometown tournament for the first time since 2017, demonstrated both power and precision in a performance that took just one hour and 16 minutes.

Osaka set the tone immediately, storming through the opening set 6-0 in just 26 minutes. Her dominance on serve and return was evident from the statistics. Osaka recorded five aces, dropping only one double fault, and won 100% of points on her first serve. The number one Japanese player even managed only to drop two points on serve during this first set. Despite a lower first-serve percentage (43%), she converted six of eight second-serve points, showing exceptional consistency under pressure.

Sonobe struggled to respond, managing just one ace and no breaks, while losing all three of her service games. Osaka’s return game was particularly impressive: she won 63% of return points overall, including 60% on Sonobe’s first serve, and broke three times in three opportunities.

The second set lasted 51 minutes and was more competitive, as Sonobe adjusted her tactics, improving her serve and holding three games. Osaka hit three aces and avoided double faults, winning 75% of first-serve points and 69% of second-serve points. On the return, she won 46% of points, enough to earn two return games and convert a crucial break in the sixth game.

The point-by-point progression reveals how the set unfolded. Both players held serve in the early games, trading points in close rallies. Osaka broke Sonobe in the fourth game to move 3-2 ahead and consolidated with a strong hold to go 4-2 up. Sonobe fought back to 4-3, but Osaka broke again to take a 5-3 lead. Sonobe’s persistence kept her in the match, winning the next service game to make it 5-4, but Osaka’s serve held under pressure to close out the set 6-4. Osaka also demonstrated resilience by winning six consecutive points at critical moments and facing no match points, whereas Sonobe saved two but could not extend the set further.

Osaka’s performance highlighted her strengths: a powerful, accurate serve; aggressive, consistent baseline strokes; and excellent tactical awareness. She moved Sonobe around the court, mixing deep shots with occasional drop shots to keep her opponent off balance. Her mental composure in key moments allowed her to convert break points efficiently and maintain momentum throughout both sets.

The match also marked a return to form for Osaka after a challenging Asian swing. While she recorded just one win across Beijing and Wuhan, strong performances in Montreal and the U.S. Open have helped her re-enter the world’s top 20. Monday’s performance shows her regaining confidence and rhythm, especially in crucial points under pressure.

Osaka will face defending champion Suzan Lamens of the Netherlands in the second round. The pair have met once before, with Osaka winning in straight sets on grass at ’s-Hertogenbosch last year. A victory over Lamens would mark Osaka’s first quarterfinal appearance in Osaka and signal a renewed momentum in her season.

For Osaka, Monday’s win represents more than a first-round victory, it is a statement of intent. As the top seed, she will definitely fancy her chances for a deep run. With her serve firing, baseline game consistent, and mental toughness intact, she is well-positioned to make a deep run in the Japan Open and potentially reignite her season as the WTA Tour moves toward its final tournaments.