Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Jablonec Nad Nisou | 2023/06/02 09:00 | Khumoyun Sultanov v Sebastian Fanselow | 5-7,5-7 |
| ITF M25 Jablonec Nad Nisou | 2023/06/01 07:55 | Khumoyun Sultanov v Buvaysar Gadamauri | 6-2,6-1 |
| ITF M25 Jablonec Nad Nisou | 2023/05/31 08:00 | Khumoyun Sultanov v Sandro Kopp | 6-4,6-1 |
| ITF M15 Warmbad-Villach | 2023/05/25 13:00 | Khumoyun Sultanov v Alex Barrena | 6-7,6-3,2-6 |
| ITF M15 Warmbad-Villach | 2023/05/25 08:25 | Khumoyun Sultanov v Liam Gavrielides | 6-7,6-2,6-4 |
| ITF M15 Warmbad-Villach | 2023/05/23 11:50 | Khumoyun Sultanov v Filippo Speziali | 6-1,6-2 |
| ITF M25 Praha | 2023/05/18 11:35 | Michael Vrbensky v Khumoyun Sultanov | 6-7,7-6,6-2 |
| ITF M25 Praha | 2023/05/17 10:50 | Jeremy Jahn v Khumoyun Sultanov | 3-6,3-6 |
| ITF M15 Nakhon Si Thammarat | 2023/07/07 03:40 | Shuichi Sekiguchi v Maximus Jones | 4-6,7-6,5-7 |
| ITF M15 Nakhon Si Thammarat | 2023/07/06 03:00 | Shuichi Sekiguchi v Taisei Ichikawa | 6-2,6-2 |
| ITF M15 Nakhon Si Thammarat | 2023/07/05 06:20 | Shuichi Sekiguchi v Credit Chaiyarin | 6-2,6-4 |
| ITF M15 Jakarta | 2023/06/28 05:45 | Moerani Bouzige v Shuichi Sekiguchi | 7-5,6-3 |
| ITF M15 Jakarta | 2023/06/23 02:00 | Fitriadi M Rifqi v Shuichi Sekiguchi | 0-6,6-3,7-6 |
| ITF M15 Jakarta | 2023/06/21 04:25 | Tegar A S Wibowo v Shuichi Sekiguchi | 0-6,0-6 |
| ITF M25 Kashiwa | 2023/04/05 04:30 | Shuichi Sekiguchi v Tatsuma Ito | 4-6,6-3,7-5 |
| ITF M25 Lucknow | 2023/03/22 04:00 | Shuichi Sekiguchi v Karan Singh | 3-6,4-6 |