Katie Boulter vs Marta Kostyuk Preview & Prediction | 2025 US Open | First Round

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An out-of-form Katie Boulter looks to reignite her season at the US Open, starting with victory against seeded opposition in Marta Kostyuk.
Start date/time:
Venue: USTA Billie Jean King National Tennis Center, New York, USA
Surface: Outdoor hard
How to watch on TV: UK – Sky Sports Tennis / US – ESPN
How to watch online: UK – Sky Go / US – ESPN+
Tickets: Visit this link for the latest Katie Boulter vs Marta Kostyuk ticket information
Katie Boulter vs Marta Kostyuk prediction
Katie Boulter has endured a really difficult spell of tennis over the past month or so and has been knocked out in three of her last four WTA events without winning a match. This after following up such an impressive first round victory at Wimbledon over Paula Badosa with a hugely underwhelming defeat at the hands of Solana Sierra, who is ranked outside of the top 50.
Marta Kostyuk enters the competition seeded 27th but there may be question marks over her fitness with this being her first match back after being forced to withdraw from the Cincinnati Open ahead of her third round clash with eventual winner Iga Swiatek. Kostyuk is very good on the hard court but it’s hard to gauge how high her performance levels will be.
These two players are very well matched, particularly on this surface. Therefore, this has all the makings of being a long-drawn-out battle and backing over 21.5 total games should be seriously considered.
Katie Boulter vs Marta Kostyuk tip: Over 21.5 total games