Talk:2023-04-24 Ostrava (c)

The   (known as for sponsorship reasons) was a wo/men's tennis tournament played on outdoor  courts in Tokyo, Japan, that was part of the Championship series of tournaments on the  ATP Tour. It was the 22nd edition of the and was held.

Singles
{| class="wikitable" style="text-align:center;font-size:90%" !width=40| Seed !width=150| Country !width=150| Player !width=60| Result !width=190| Playing against }}
 * align=left| 🇬🇧 GBR Ryan Peniston (First Round)
 * align=left| 🇷🇺 RUS Ivan Gakhov (Second Round)
 * align=left| 🇨🇿 CZE Vít Kopřiva (Second Round)
 * align=left| 🇫🇷 FRA Geoffrey Blancaneaux (Second Round)
 * align=left| CHI Alejandro Tabilo (withdrew)
 * align=left| 🇮🇹 ITA Riccardo Bonadio (Semifinals)
 * align=left| 🇺🇦 UKR Oleksii Krutykh (Second Round)
 * align=left| 🇧🇦 BIH Damir Džumhur (Quarterfinals)
 * align=left| 🇨🇿 CZE Dalibor Svrčina (Second Round)
 * align=left| 🇨🇿 CZE Vít Kopřiva (Second Round)
 * align=left| 🇫🇷 FRA Geoffrey Blancaneaux (Second Round)
 * align=left| CHI Alejandro Tabilo (withdrew)
 * align=left| 🇮🇹 ITA Riccardo Bonadio (Semifinals)
 * align=left| 🇺🇦 UKR Oleksii Krutykh (Second Round)
 * align=left| 🇧🇦 BIH Damir Džumhur (Quarterfinals)
 * align=left| 🇨🇿 CZE Dalibor Svrčina (Second Round)
 * align=left| 🇮🇹 ITA Riccardo Bonadio (Semifinals)
 * align=left| 🇺🇦 UKR Oleksii Krutykh (Second Round)
 * align=left| 🇧🇦 BIH Damir Džumhur (Quarterfinals)
 * align=left| 🇨🇿 CZE Dalibor Svrčina (Second Round)
 * align=left| 🇺🇦 UKR Oleksii Krutykh (Second Round)
 * align=left| 🇧🇦 BIH Damir Džumhur (Quarterfinals)
 * align=left| 🇨🇿 CZE Dalibor Svrčina (Second Round)
 * align=left| 🇧🇦 BIH Damir Džumhur (Quarterfinals)
 * align=left| 🇨🇿 CZE Dalibor Svrčina (Second Round)
 * align=left| 🇨🇿 CZE Dalibor Svrčina (Second Round)
 * align=left| 🇨🇿 CZE Dalibor Svrčina (Second Round)
 * align=left| 🇨🇿 CZE Dalibor Svrčina (Second Round)

Doubles
{| class="wikitable" style="text-align:center;font-size:90%" !width=40| Seed !width=150| Country !width=150| Player !width=60| Result !width=190| Playing against }}
 * align=left| 🇺🇸 USA Robert Galloway 🇲🇽 MEX Miguel Ángel Reyes-Varela (Champions)
 * align=left| 🇦🇷 ARG Guido Andreozzi 🇦🇷 ARG Guillermo Durán (Final)
 * align=left| 🇨🇿 CZE Roman Jebavý 🇦🇹 AUT Philipp Oswald (Quarterfinals)
 * align=left| 🇷🇸 SRB Ivan Sabanov 🇷🇸 SRB Matej Sabanov (First Round)
 * align=left| 🇦🇷 ARG Guido Andreozzi 🇦🇷 ARG Guillermo Durán (Final)
 * align=left| 🇨🇿 CZE Roman Jebavý 🇦🇹 AUT Philipp Oswald (Quarterfinals)
 * align=left| 🇷🇸 SRB Ivan Sabanov 🇷🇸 SRB Matej Sabanov (First Round)
 * align=left| 🇨🇿 CZE Roman Jebavý 🇦🇹 AUT Philipp Oswald (Quarterfinals)
 * align=left| 🇷🇸 SRB Ivan Sabanov 🇷🇸 SRB Matej Sabanov (First Round)
 * align=left| 🇨🇿 CZE Roman Jebavý 🇦🇹 AUT Philipp Oswald (Quarterfinals)
 * align=left| 🇷🇸 SRB Ivan Sabanov 🇷🇸 SRB Matej Sabanov (First Round)
 * align=left| 🇷🇸 SRB Ivan Sabanov 🇷🇸 SRB Matej Sabanov (First Round)
 * align=left| 🇷🇸 SRB Ivan Sabanov 🇷🇸 SRB Matej Sabanov (First Round)

Singles

 * Seeds
 * Draw

Doubles

 * Seeds
 * Draw