ATP Challenger

Mazovia
Open

2–9 August 2026Kozerki, Poland

About the tournament.

Mazovia Open is the new edition of one of the most important ATP Challenger Tour tennis tournaments in Poland. Previously organized as Kozerki Open, the event is developing its international brand under a new name thanks to its partnership with the Mazovia Province, while maintaining its unique atmosphere and the highest level of sporting excitement.

The tournament is held at a modern sports complex in Kozerki, near Warsaw, and every year attracts top players, fans, and business partners from around the world.

64

64 players

€50,000

Prize money

4

4 editions

News.

Latest tournament updates

Silver VIP Stand is being built by the Centre Court at the Mazovia Open ATP Challenger

Silver VIP Stand is being built by the Centre Court at the Mazovia Open ATP Challenger

Next to the Centre Court, a covered Silver VIP Stand is being built, offering an excellent view of the main matches of the Mazovia Open ATP Challenger. Covered seating, high viewing comfort, and a lounge at the top of the stand are among the new features of this year's tournament edition.

The first step towards the main draw. The Mazovia Open ATP Challenger qualifying entry list announced

The first step towards the main draw. The Mazovia Open ATP Challenger qualifying entry list announced

We know the players who will start their fight for a spot in the main draw of the Mazovia Open ATP Challenger from the qualifying rounds. In Kozerki, we will see an international field, strong names, and Polish tennis players for whom every match will be another step towards the main draw.

Kamil Majchrzak invites you to the Mazovia Open ATP Challenger!

Kamil Majchrzak invites you to the Mazovia Open ATP Challenger!

The winner of the previous edition knows exactly what emotions await fans in Kozerki. Kamil Majchrzak invites you to the Mazovia Open ATP Challenger – eight days of international tennis, meetings with players, and attractions for the whole family. See you from August 2 to 9 in Kozerki near Grodzisk Mazowiecki.

Partners.

We thank our partners for their support

Red Mazowsze logo with the slogan serce Polski in black text on a white background.Coat of arms of Mazovia with a white eagle on a red background and the inscription Marshal of the Mazowieckie Voivodeship.Mazovia Open logo with a red geometric shape and black text reading International Tennis Tournament Kozerki.Kozerki Hotel logo with stylized "K" above the name and three stars below the word "HotelKozminski University logo with a stylized sailing ship and bold text reading KOZMINSKI UNIVERSITY.Mercedes-Benz logo with text: Mercedes-Benz Autotorino Warszawa, authorized dealer and service.Black and white illustration of a woman's head with the text Stowarzyszenie Sady Grójeckie in Polish.Mazovia Open logo with a stylized tennis ball and text reading Mazovia Open Kozerki.Festina logo with a crest, two horses, a crown, and the text Festina Watches since 1902.Peroni Nastro Azzurro 0.0% alcohol-free beer logo in black text on a white background.TOTU Restauracja logo with stylized brown "K" above navy and brown text on a white background.Black letters LS with a red accent above the L and two red lines underneath on a white background.Red Mazowsze logo with the slogan serce Polski in black text on a white background.Coat of arms of Mazovia with a white eagle on a red background and the inscription Marshal of the Mazowieckie Voivodeship.Mazovia Open logo with a red geometric shape and black text reading International Tennis Tournament Kozerki.Kozerki Hotel logo with stylized "K" above the name and three stars below the word "HotelKozminski University logo with a stylized sailing ship and bold text reading KOZMINSKI UNIVERSITY.Mercedes-Benz logo with text: Mercedes-Benz Autotorino Warszawa, authorized dealer and service.Black and white illustration of a woman's head with the text Stowarzyszenie Sady Grójeckie in Polish.Mazovia Open logo with a stylized tennis ball and text reading Mazovia Open Kozerki.Festina logo with a crest, two horses, a crown, and the text Festina Watches since 1902.Peroni Nastro Azzurro 0.0% alcohol-free beer logo in black text on a white background.TOTU Restauracja logo with stylized brown "K" above navy and brown text on a white background.Black letters LS with a red accent above the L and two red lines underneath on a white background.

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