Karolina Muchova will face off against Marta Kostyuk at the U.S. Open on Monday at 1:00 pm on Grandstand.
How and when to watch the match on live stream and for free
The match between Muchova and Kostyuk can be watched with online streaming on bet365 (for free with a funded account).
In the United States, the match can be enjoyed on ESPN3, ESPN+. In both Czech Republic and Ukraine the match is broadcasted by Eurosport. Click here to see at what time the match
should be broadcasted live in your country.To be able to watch in live streaming bet365, a funded account is required or you need to have placed a bet in the last 24 hours. 18+ BeGambleAware. Here is where top tennis tournaments are broadcasted or streamed online (ATP, WTA).
The H2H stats
Muchova and Kostyuk have never played against each other so far on the main tour.
Muchova at the U.S. Open, ranking, and results in 2025
Ranked world no.13, the Czech owns a compiled 19-12 win-loss record in 2025. The Czech is now having a run at the U.S. Open where she defeated Venus Williams 6-3 2-6 6-1, Sorana Cirstea 7-6(0) 6-7(3) 6-4 and Linda Noskova 6-7(5) 6-4 6-2.
Karolina Muchova will square off with the world no.28 Marta Kostyuk in the 4th round on Monday at 1:00 pm on Grandstand. They have never played each other till now on the main tour.
Kostyuk at the U.S. Open, ranking, and results in 2025
Currently ranked no.28, the Ukrainian achieved a composed 24-17 record in 2025. Kostyuk is playing at the moment at the U.S. Open where she defeated Katie Boulter 6-4 6-4, Zeynep Sonmez 7-5 6-7(5) 6-3 and Diane Parry 3-6 6-4 6-2.
Marta Kostyuk will square off with the world no.13 Karolina Muchova in the 4th round on Monday at 1:00 pm on Grandstand. They have never played each other so far in top competitions.