Talk:2023-06-19 Poznań (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| 🇷🇺 RUS Alexander Shevchenko (First Round)
 * align=left| 🇦🇷 ARG Federico Coria (First Round)
 * align=left| 🇨🇿 CZE Tomáš Macháč (First Round)
 * align=left| 🇦🇷 ARG Facundo Díaz Acosta (Quarterfinals)
 * align=left| CHI Tomás Barrios Vera (Final)
 * align=left| 🇫🇷 FRA Geoffrey Blancaneaux (First Round, Retired)
 * align=left| 🇧🇦 BIH Damir Džumhur (First Round)
 * align=left| 🇨🇿 CZE Dalibor Svrčina (First Round)
 * align=left| 🇨🇿 CZE Tomáš Macháč (First Round)
 * align=left| 🇦🇷 ARG Facundo Díaz Acosta (Quarterfinals)
 * align=left| CHI Tomás Barrios Vera (Final)
 * align=left| 🇫🇷 FRA Geoffrey Blancaneaux (First Round, Retired)
 * align=left| 🇧🇦 BIH Damir Džumhur (First Round)
 * align=left| 🇨🇿 CZE Dalibor Svrčina (First Round)
 * align=left| CHI Tomás Barrios Vera (Final)
 * align=left| 🇫🇷 FRA Geoffrey Blancaneaux (First Round, Retired)
 * align=left| 🇧🇦 BIH Damir Džumhur (First Round)
 * align=left| 🇨🇿 CZE Dalibor Svrčina (First Round)
 * align=left| 🇫🇷 FRA Geoffrey Blancaneaux (First Round, Retired)
 * align=left| 🇧🇦 BIH Damir Džumhur (First Round)
 * align=left| 🇨🇿 CZE Dalibor Svrčina (First Round)
 * align=left| 🇧🇦 BIH Damir Džumhur (First Round)
 * align=left| 🇨🇿 CZE Dalibor Svrčina (First Round)
 * align=left| 🇨🇿 CZE Dalibor Svrčina (First Round)
 * align=left| 🇨🇿 CZE Dalibor Svrčina (First 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| URU Ariel Behar 🇨🇿 CZE Adam Pavlásek (Final)
 * align=left| GRE Petros Tsitsipas  NED Sem Verbeek (Semifinals)
 * align=left| 🇧🇾 BLR Ivan Liutarevich 🇺🇦 UKR Vladyslav Manafov (Semifinals)
 * align=left| 🇵🇱 POL Karol Drzewiecki 🇨🇿 CZE Petr Nouza (Champions)
 * align=left| GRE Petros Tsitsipas  NED Sem Verbeek (Semifinals)
 * align=left| 🇧🇾 BLR Ivan Liutarevich 🇺🇦 UKR Vladyslav Manafov (Semifinals)
 * align=left| 🇵🇱 POL Karol Drzewiecki 🇨🇿 CZE Petr Nouza (Champions)
 * align=left| 🇧🇾 BLR Ivan Liutarevich 🇺🇦 UKR Vladyslav Manafov (Semifinals)
 * align=left| 🇵🇱 POL Karol Drzewiecki 🇨🇿 CZE Petr Nouza (Champions)
 * align=left| 🇧🇾 BLR Ivan Liutarevich 🇺🇦 UKR Vladyslav Manafov (Semifinals)
 * align=left| 🇵🇱 POL Karol Drzewiecki 🇨🇿 CZE Petr Nouza (Champions)
 * align=left| 🇵🇱 POL Karol Drzewiecki 🇨🇿 CZE Petr Nouza (Champions)
 * align=left| 🇵🇱 POL Karol Drzewiecki 🇨🇿 CZE Petr Nouza (Champions)

Singles

 * Seeds
 * Draw

Doubles

 * Seeds
 * Draw