2025 Ostra Group Open

The 2025 Ostra Group Open was a professional tennis tournament played on clay courts. It was the 22nd edition of the tournament which was part of the 2025 ATP Challenger Tour. It took place in Ostrava, Czech Republic between 28 April and 4 May 2025.^[1][2]

2025 Ostra Group Open
Date	28 April – 4 May
Edition	22nd
Surface	Clay
Location	Ostrava, Czech Republic
Champions
Singles
Zsombor Piros
Doubles
Jan Jermář / Stefan Latinović

Singles main-draw entrants

Seeds

Country	Player	Rank1	Seed
CZE	Vít Kopřiva	95	1
DEN	Elmer Møller	114	2
FRA	Adrian Mannarino	124	3
CZE	Dalibor Svrčina	127	4
FRA	Harold Mayot	160	5
HKG	Coleman Wong	169	6
SVK	Lukáš Klein	173	7
LIB	Hady Habib	174	8

• ¹ Rankings are as of 21 April 2025.^[3]

Other entrants

The following players received wildcards into the singles main draw:

• Jan Jermář
• Jan Kumstát
• Maxim Mrva

The following players received entry from the qualifying draw:

• Petr Brunclík
• Norbert Gombos
• Max Houkes
• Àlex Martínez
• Rudolf Molleker
• Jelle Sels

The following player received entry as a lucky loser:

• Vitaliy Sachko

Champions

Singles

Main article: 2025 Ostra Group Open – Singles

• Zsombor Piros def. Hady Habib 6–3, 6–2.

Doubles

Main article: 2025 Ostra Group Open – Doubles

• Jan Jermář / Stefan Latinović def. Finn Reynolds / James Watt 7–5, 6–3.