Coverage of tennis' US Open hard-court grand slam tournament on Warner Bros. Discovery (WBD) platforms across Europe delivered impressive viewing numbers for the media giant.

In total, the Eurosport 1 linear channel grew its US Open audience by 32% from the same New York tournament in 2024, as it broadcast exclusively to 45 countries across the continent.

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Eurosport provided 260 hours of live coverage in total from the hard-court slam, with Romania (50%) and the Netherlands (27%) two of the markets that recorded the most significant year-on-year growth in viewing numbers.

Other countries with notable viewing data include Poland – where a record number of viewers watched the tournament overall – and France, which attracted its biggest audience for the hard-court tournament in a decade.

This data has been unveiled with the tournament having finished over the weekend, with Spain's Carlos Alcaraz winning the men's singles final, and Belarusian Aryna Sabalenka winning the women's tournament.

WBD has also claimed that seven of the 10 most-watched Eurosport programmes over the last week – across Europe – have been US Open matches.

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In terms of coverage of the event via the HBO Max streaming platform, meanwhile, triple-digit growth took place in France, the Netherlands, and Poland, in addition to double-digit growth in Sweden, Finland, and Norway.

In addition, the number of HBO Max subscribers streaming US Open action increased by 86% from the 2024 figure.

WBD holds European rights to the US Open through 2027, in a five-edition deal unveiled in early 2023.

In terms of the media giant's other tennis rights on the continent, later this month, it will cover every match from the men's Laver Cup national teams tournament, between September 19 and 21. That agreement, made during WBD's former Discovery days in late 2021, runs through 2030.