Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| Challenger Astana | 2023/07/25 05:55 | Ajeet Rai v Denis Yevseyev | 4-6,1-6 |
| Challenger Granby | 2023/07/17 01:00 | Blake Ellis v Ajeet Rai | 5-7,6-4,7-5 |
| Challenger - Busan | 2023/05/08 07:05 | Jason Jung v Ajeet Rai | 7-5,6-1 |
| Challenger - Busan | 2023/05/08 02:00 | Jeamoon Lee v Ajeet Rai | 4-6,1-6 |
| Challenger - Gwangju | 2023/04/30 01:30 | Nam, Ji Sung v Ajeet Rai | 5-7,6-1,6-2 |
| Challenger Seoul | 2023/04/23 02:00 | Shinji Hazawa v Ajeet Rai | 4-6,6-3,6-4 |
| Challenger - Morelos | 2023/04/16 19:50 | Daniil Glinka v Ajeet Rai | 7-5,6-2 |
| Challenger Leon | 2023/04/09 19:30 | Ajeet Rai v Nick Chappell | 4-6,7-5,2-6 |
| Challenger Astana | 2023/07/24 08:30 | Khumoyun Sultanov v Sekiguchi, Shuichi | 7-6,6-4 |
| ITF - M15 Nakhon Si Thammarat | 2023/07/07 03:40 | Sekiguchi, Shuichi v Maximus Jones | 4-6,7-6,5-7 |
| ITF - M15 Nakhon Si Thammarat | 2023/07/06 03:00 | Sekiguchi, Shuichi v Taisei Ichikawa | 6-2,6-2 |
| ITF - M15 Nakhon Si Thammarat | 2023/07/05 06:20 | Sekiguchi, Shuichi v Credit Chaiyarin | 6-2,6-4 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2023/06/28 05:45 | Moerani Bouzige v Sekiguchi, Shuichi | 7-5,6-3 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2023/06/23 02:00 | M Rifqi, Fitriadi v Sekiguchi, Shuichi | 0-6,6-3,7-6 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2023/06/21 04:25 | Tegar A S Wibowo v Sekiguchi, Shuichi | 0-6,0-6 |
| Kashiwa, Singles Main, M-ITF-JPN-03A | 2023/04/05 04:30 | Sekiguchi, Shuichi v Tatsuma Ito | 4-6,6-3,7-5 |