2023 Ostra Group Open
{{TennisEventInfo|2023|Ostra Group Open|
| date=24 – 30 April
| edition=20th
| surface=Clay
| location=Ostrava, Czech Republic
| champs={{flagicon|CZE}} Zdeněk Kolář
| champd={{flagicon|USA}} Robert Galloway / {{flagicon|MEX}} Miguel Ángel Reyes-Varela
}}
The 2023 Ostra Group Open was a professional tennis tournament played on clay courts. It was the 20th edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Ostrava, Czech Republic between 24 and 30 April 2023.
Singles main-draw entrants
=Seeds=
| class="sortable wikitable" |
| width="70"| Country
! width="175"| Player ! Rank1 ! Seed |
|---|
| {{flag|GBR}}
|158 |1 |
| |Ivan Gakhov
|162 |2 |
| {{flag|CZE}}
|165 |3 |
| {{flag|FRA}}
|175 |4 |
| | |
| {{flag|ITA}}
|179 |6 |
| {{flag|UKR}}
|180 |7 |
| {{flag|BIH}}
|202 |8 |
| {{flag|CZE}}
|203 |9 |
- 1 Rankings are as of 17 April 2023.{{cite web|url=https://www.atptour.com/en/rankings/singles|title=Rankings – Singles – ATP Tour – Tennis|website=ATP Tour}}
=Other entrants=
The following players received wildcards into the singles main draw:
- {{flagicon|CZE}} Jakub Menšík
- {{flagicon|FRA}} Gaël Monfils
- {{flagicon|CZE}} Jiří Veselý
The following players received entry into the singles main draw as alternates:
- {{flagicon|JPN}} Shintaro Mochizuki
- {{flagicon|UKR}} Vitaliy Sachko
The following players received entry from the qualifying draw:
- {{flagicon|ARG}} Guido Andreozzi
- {{flagicon|ESP}} Àlex Martí Pujolràs
- {{flagicon|GER}} Rudolf Molleker
- {{flagicon|CZE}} Patrik Rikl
- {{flagicon|GER}} Henri Squire
- {{flagicon|UZB}} Khumoyun Sultanov
Champions
=Singles=
{{main|2023 Ostra Group Open – Singles}}
- {{flagicon|CZE}} Zdeněk Kolář def. {{flagicon|HUN}} Máté Valkusz 6–3, 6–2.
=Doubles=
{{main|2023 Ostra Group Open – Doubles}}
- {{flagicon|USA}} Robert Galloway / {{flagicon|MEX}} Miguel Ángel Reyes-Varela def. {{flagicon|ARG}} Guido Andreozzi / {{flagicon|ARG}} Guillermo Durán 7–5, 7–6(7–5).
References
{{reflist}}
{{2023 ATP Challenger Tour}}
{{DEFAULTSORT:Ostra Group Open, 2023}}