Talk:2023-07-10 Braunschweig (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| 🇩🇪 GER Daniel Altmaier (Quarterfinals)
 * align=left| 🇸🇰 SVK Alex Molčan (First Round)
 * align=left| 🇮🇹 ITA Marco Cecchinato (First Round)
 * align=left| 🇦🇷 ARG Federico Coria (First Round)
 * align=left| 🇷🇺 RUS Pavel Kotov (Final)
 * align=left| 🇯🇵 JPN Taro Daniel (Second Round)
 * align=left| 🇪🇸 ESP Jaume Munar (First Round)
 * align=left| 🇪🇸 ESP Pedro Martínez (Second Round)
 * align=left| 🇮🇹 ITA Marco Cecchinato (First Round)
 * align=left| 🇦🇷 ARG Federico Coria (First Round)
 * align=left| 🇷🇺 RUS Pavel Kotov (Final)
 * align=left| 🇯🇵 JPN Taro Daniel (Second Round)
 * align=left| 🇪🇸 ESP Jaume Munar (First Round)
 * align=left| 🇪🇸 ESP Pedro Martínez (Second Round)
 * align=left| 🇷🇺 RUS Pavel Kotov (Final)
 * align=left| 🇯🇵 JPN Taro Daniel (Second Round)
 * align=left| 🇪🇸 ESP Jaume Munar (First Round)
 * align=left| 🇪🇸 ESP Pedro Martínez (Second Round)
 * align=left| 🇯🇵 JPN Taro Daniel (Second Round)
 * align=left| 🇪🇸 ESP Jaume Munar (First Round)
 * align=left| 🇪🇸 ESP Pedro Martínez (Second Round)
 * align=left| 🇪🇸 ESP Jaume Munar (First Round)
 * align=left| 🇪🇸 ESP Pedro Martínez (Second Round)
 * align=left| 🇪🇸 ESP Pedro Martínez (Second Round)
 * align=left| 🇪🇸 ESP Pedro Martínez (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| NED Sander Arends 🇪🇨 ECU Gonzalo Escobar (Quarterfinals)
 * align=left| 🇩🇪 GER Constantin Frantzen 🇩🇪 GER Hendrik Jebens (First Round)
 * align=left| 🇮🇳 IND Ramkumar Ramanathan 🇪🇸 ESP David Vega Hernández (Quarterfinals)
 * align=left| 🇪🇸 ESP Sergio Martos Gornés 🇨🇿 CZE Petr Nouza (First Round)
 * align=left| 🇩🇪 GER Constantin Frantzen 🇩🇪 GER Hendrik Jebens (First Round)
 * align=left| 🇮🇳 IND Ramkumar Ramanathan 🇪🇸 ESP David Vega Hernández (Quarterfinals)
 * align=left| 🇪🇸 ESP Sergio Martos Gornés 🇨🇿 CZE Petr Nouza (First Round)
 * align=left| 🇮🇳 IND Ramkumar Ramanathan 🇪🇸 ESP David Vega Hernández (Quarterfinals)
 * align=left| 🇪🇸 ESP Sergio Martos Gornés 🇨🇿 CZE Petr Nouza (First Round)
 * align=left| 🇮🇳 IND Ramkumar Ramanathan 🇪🇸 ESP David Vega Hernández (Quarterfinals)
 * align=left| 🇪🇸 ESP Sergio Martos Gornés 🇨🇿 CZE Petr Nouza (First Round)
 * align=left| 🇪🇸 ESP Sergio Martos Gornés 🇨🇿 CZE Petr Nouza (First Round)
 * align=left| 🇪🇸 ESP Sergio Martos Gornés 🇨🇿 CZE Petr Nouza (First Round)

Singles

 * Seeds
 * Draw

Doubles

 * Seeds
 * Draw