Katie Boulter vs Antonia Ruzic Preview & Prediction | 2026 Japan Women’s Open | Quarter-Final

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Katie Boulter meets Antonia Ruzic in the quarter-finals at the 2026 Japan Women’s Open at the Utsubo Tennis Center in Osaka, Japan.

Ranking points: WTA 250

Start date/time: 23 October 2026 at 3:00 am

Venue: Utsubo Tennis Center, Osaka, Japan

Surface: Outdoor hard

How to watch on TV: UK – Sky Sports Tennis / USA – Tennis Channel

How to watch online: UK – Sky Go / USA – Tennis Channel

Tickets: Visit this link for the latest Katie Boulter vs Antonia Ruzic ticket information

Katie Boulter vs Antonia Ruzic prediction

Katie Boulter scored back-to-back wins for the first time since June to power into the last eight in Osaka.

The Brit was aggressive and ruthless in her 6-2 6-1 demolition of Viktorija Golubic. 

The world number 58 will now meet Antonia Ruzic after the Croatian progressed when Kayla Day retired trailing 4-6. 

This will be their first encounter and eighth seed Boulter will like her chances given her sudden return to form.

World number 91, Ruzic has also been way off her best in recent months, but did beat Paula Badosa here, making this a tricky one to call as both players have been so inconsistent in the second part of 2026. 

Katie Boulter vs Antonia Ruzic tip: No bet