Talk:2023-07-17 Amersfoort (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| 🇦🇷 ARG Facundo Díaz Acosta (Quarterfinals, Retired)
 * align=left| 🇧🇷 BRA Felipe Meligeni Alves (First Round)
 * align=left| 🇬🇧 GBR Jan Choinski (Second Round)
 * align=left| NED Jelle Sels (First Round)
 * align=left| 🇩🇪 GER Maximilian Marterer (Champion)
 * align=left| NED Jesper de Jong (First Round)
 * align=left| 🇷🇴 ROU Nicholas David Ionel (Second Round)
 * align=left| 🇫🇷 FRA Titouan Droguet (Final)
 * align=left| 🇬🇧 GBR Jan Choinski (Second Round)
 * align=left| NED Jelle Sels (First Round)
 * align=left| 🇩🇪 GER Maximilian Marterer (Champion)
 * align=left| NED Jesper de Jong (First Round)
 * align=left| 🇷🇴 ROU Nicholas David Ionel (Second Round)
 * align=left| 🇫🇷 FRA Titouan Droguet (Final)
 * align=left| 🇩🇪 GER Maximilian Marterer (Champion)
 * align=left| NED Jesper de Jong (First Round)
 * align=left| 🇷🇴 ROU Nicholas David Ionel (Second Round)
 * align=left| 🇫🇷 FRA Titouan Droguet (Final)
 * align=left| NED Jesper de Jong (First Round)
 * align=left| 🇷🇴 ROU Nicholas David Ionel (Second Round)
 * align=left| 🇫🇷 FRA Titouan Droguet (Final)
 * align=left| 🇷🇴 ROU Nicholas David Ionel (Second Round)
 * align=left| 🇫🇷 FRA Titouan Droguet (Final)
 * align=left| 🇫🇷 FRA Titouan Droguet (Final)
 * align=left| 🇫🇷 FRA Titouan Droguet (Final)

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| 🇫🇷 FRA Manuel Guinard 🇫🇷 FRA Grégoire Jacq (Champions)
 * align=left| SUI Luca Margaroli 🇩🇪 GER Tim Sandkaulen (Quarterfinals)
 * align=left| 🇬🇧 GBR Joshua Paris 🇬🇧 GBR Marcus Willis (First Round)
 * align=left| 🇦🇷 ARG Santiago Rodríguez Taverna 🇺🇦 UKR Volodymyr Uzhylovskyi (Quarterfinals)
 * align=left| SUI Luca Margaroli 🇩🇪 GER Tim Sandkaulen (Quarterfinals)
 * align=left| 🇬🇧 GBR Joshua Paris 🇬🇧 GBR Marcus Willis (First Round)
 * align=left| 🇦🇷 ARG Santiago Rodríguez Taverna 🇺🇦 UKR Volodymyr Uzhylovskyi (Quarterfinals)
 * align=left| 🇬🇧 GBR Joshua Paris 🇬🇧 GBR Marcus Willis (First Round)
 * align=left| 🇦🇷 ARG Santiago Rodríguez Taverna 🇺🇦 UKR Volodymyr Uzhylovskyi (Quarterfinals)
 * align=left| 🇬🇧 GBR Joshua Paris 🇬🇧 GBR Marcus Willis (First Round)
 * align=left| 🇦🇷 ARG Santiago Rodríguez Taverna 🇺🇦 UKR Volodymyr Uzhylovskyi (Quarterfinals)
 * align=left| 🇦🇷 ARG Santiago Rodríguez Taverna 🇺🇦 UKR Volodymyr Uzhylovskyi (Quarterfinals)
 * align=left| 🇦🇷 ARG Santiago Rodríguez Taverna 🇺🇦 UKR Volodymyr Uzhylovskyi (Quarterfinals)

Singles

 * Seeds
 * Draw

Doubles

 * Seeds
 * Draw