2026 Ostra Group Open

2026 Ostra Group Open
Date	27 April – 3 May
Edition	23rd
Surface	Clay
Location	Ostrava, Czech Republic
Champions
Singles
Nikolás Sánchez Izquierdo
Doubles
Sergio Martos Gornés / Szymon Walków

The 2026 Ostra Group Open was a professional tennis tournament played on clay courts. It was the 23rd edition of the tournament which was part of the 2026 ATP Challenger Tour. It took place in Ostrava, Czech Republic between 27 April and 3 May 2026.

Singles main-draw entrants

Seeds

Country	Player	Rank1	Seed
CZE	Dalibor Svrčina	127	1
GBR	Jack Pinnington Jones	135	2
HUN	Zsombor Piros	148	3
GBR	Toby Samuel	163	4
FRA	Ugo Blanchet	166	5
CZE	Zdeněk Kolář	182	6
ITA	Marco Cecchinato	188	7
UKR	Vitaliy Sachko	191	8

• ¹ Rankings are as of 20 April 2026.

Other entrants

The following players received wildcards into the singles main draw:

• Hynek Bartoň
• Jan Jermář
• Maxim Mrva

The following player received entry into the singles main draw through the Junior Accelerator programme:

• Max Schönhaus

The following players received entry into the singles main draw as alternates:

• Filip Cristian Jianu
• Daniel Michalski
• Nikolás Sánchez Izquierdo

The following players received entry from the qualifying draw:

• Jonáš Forejtek
• Norbert Gombos
• Garrett Johns
• Rudolf Molleker
• Carlos Sánchez Jover
• Daniel Siniakov

Champions

Singles

Main article: 2026 Ostra Group Open – Singles

• Nikolás Sánchez Izquierdo def. Zdeněk Kolář 6–4, 7–6^(7–4).

Doubles

Main article: 2026 Ostra Group Open – Doubles

• Sergio Martos Gornés / Szymon Walków def. Karol Drzewiecki / Piotr Matuszewski 6–7^(3–7), 7–5, [10–8].