Antonia Ruzic vs Kayla Day Preview & Prediction | 2026 Japan Women’s Open | Round of 16

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Antonia Ruzic meets Kayla Day in the round of 16 at the 2026 Japan Women’s Open at the Utsubo Tennis Center in Osaka, Japan.

Ranking points: WTA 250

Start date/time: 21 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 Antonia Ruzic vs Kayla Day ticket information

Antonia Ruzic vs Kayla Day prediction

Antonia Ruzic thwarted Paula Badosa to book a spot in the round of 16 in Osaka.

The Croatian youngster flipped the form book to beat the Spaniard 3-6 6-4 6-3.

It was a first tour-level win for the world number 91 since August and has earned her a showdown with lucky loser Kayla Day.

The American saw off her compatriot and fellow lucky loser, Sofia Kenin by a 6-3 6-2 scoreline to claim just her third main draw victory of 2026.

Ruzic has the edge in terms of ranking and overall quality here, but she has not been at her best for a while. If that Badosa win can kick-start her form, she should win this comfortably. 

Antonia Ruzic vs Kayla Day tip: Antonia Ruiz to win