The 2025 Kozerki Open was a professional tennis tournament played on hard courts. It was the fourth edition of the tournament which was part of the 2025 ATP Challenger Tour. It took place in Grodzisk Mazowiecki, Poland between 4 and 10 August 2025.
Singles main-draw entrants Seeds Country Player Rank1 SeedKamil Majchrzak811Dino Prižmić1272Harold Mayot1573Kyrian Jacquet1634Marc-Andrea Hüsler1745Francesco Maestrelli1786Calvin Hemery1817Hugo Grenier1928 1 Rankings were as of 28 July 2025.
Other entrants The following players received wildcards into the singles main draw: Tomasz Berkieta Maks Kaśnikowski Olaf Pieczkowski
The following player received entry into the singles main draw using a protected ranking: Ilya Ivashka
The following player received entry into the singles main draw as a special exempt: Alexandr Binda
The following player received entry into the singles main draw through the Next Gen Accelerator programme: Petr Brunclík
The following players received entry into the singles main draw as alternates: Cui Jie Giulio Zeppieri
The following players received entry from the qualifying draw: Radu Albot Daniil Glinka Rafael Jódar Maximus Jones Filip Pieczonka Abdullah Shelbayh
Champions Singles
Kamil Majchrzak def. Dino Prižmić 6–4, 6–3.
Doubles
Thijmen Loof / Arthur Reymond def. Nam Ji-sung / Takeru Yuzuki 6–4, 6–7(3–7), [16–14].
References