Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| 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 |
| ITF - M25 New Delhi | 2023/03/16 05:30 | Yunseok Jang v Shuichi Sekiguchi | 2-6,7-5,6-3 |
| ITF - M25 New Delhi | 2023/03/15 09:55 | Woobin Shin v Shuichi Sekiguchi | 7-5,5-7,3-6 |
| ITF M15 - Aktobe | 2023/03/02 09:25 | Federico Bertuccioli v Shuichi Sekiguchi | 7-6,4-6,4-4 |
| ITF - M25 Nakhon Si Thammarat | 2023/06/12 06:30 | Pawit Sornlaksup v Credit Chaiyarin | 6-4,7-5 |
| ITF - M25 Nakhon Si Thammarat | 2023/06/11 07:50 | Nishith Naveen v Credit Chaiyarin | 2-6,2-6 |
| ITF - M15 Nakhon Si Thammarat | 2023/06/08 08:50 | Blake Ellis v Credit Chaiyarin | 6-2,6-4 |
| ITF - M15 Nakhon Si Thammarat | 2023/06/06 02:00 | Thanapet Chanta v Credit Chaiyarin | 6-4,3-6,5-7 |
| ITF - M15 Nakhon Si Thammarat | 2023/06/01 02:00 | Chase Ferguson v Credit Chaiyarin | 6-3,6-3 |
| ITF - M15 Nakhon Si Thammarat | 2023/05/31 01:55 | Credit Chaiyarin v Arjun Mahadevan | 6-3,6-2 |
| ITF - M15 Nakhon Si Thammarat | 2023/05/29 04:10 | Siwanat Auytayakul v Credit Chaiyarin | 0-6,2-6 |
| ITF - M15 Nakhon Si Thammarat | 2023/05/28 04:15 | Zhao Zhao v Credit Chaiyarin | 4-6,1-6 |