Stadium: Court 6 Round: 45 Ground: Hardcourt outdoor
| Challenger Zhuhai | 2023/08/22 07:00 | Dominik Palan v Shuichi Sekiguchi | 7-6,5-7,6-2 |
| Challenger Zhuhai | 2023/08/21 03:00 | Shuichi Sekiguchi v Markos Kalovelonis | 7-6,2-6,6-4 |
| ITF M25 Astana | 2023/08/05 07:45 | Yusuke Takahashi v Shuichi Sekiguchi | 6-4,6-4 |
| ITF M25 Astana | 2023/08/04 08:45 | Shuichi Sekiguchi v Egor Agafonov | 7-6,6-1 |
| ITF M25 Astana | 2023/08/03 07:15 | Shuichi Sekiguchi v S D Prajwal Dev | 6-7,7-5,6-0 |
| ITF M25 Astana | 2023/08/02 05:40 | Ajeet Rai v Shuichi Sekiguchi | 2-6,1-6 |
| Challenger Astana | 2023/07/24 08:30 | Khumoyun Sultanov v Shuichi Sekiguchi | 7-6,6-4 |
| ITF M15 Nakhon Si Thammarat | 2023/07/07 03:40 | Shuichi Sekiguchi v Maximus Jones | 4-6,7-6,5-7 |
| ITF M25 Jakarta | 2023/06/06 06:15 | Francis Casey Alcantara v Digvijay Pratap Singh | 3-6,4-6 |
| ITF M25 Jakarta | 2023/04/17 02:25 | Derek Pham v Francis Casey Alcantara | 6-1,2-6,10-2 |
| ITF M25 Jakarta Qual | 2023/04/16 05:30 | Francis Casey Alcantara v Aldhito R Dwi Kurniawan | 6-3,6-3 |
| ITF M25 New Delhi | 2023/03/13 03:55 | Mitsuki Wei Kang Leong v Francis Casey Alcantara | 6-4,7-5 |
| ITF M25 New Delhi | 2023/03/12 04:00 | Suraj R Prabodh v Francis Casey Alcantara | 6-3,3-6,5-10 |
| ITF M15 Jakarta | 2022/08/07 08:00 | Pol Wattanakul v Francis Casey Alcantara | 7-6,3-6,15-13 |
| ITF M15 Cairo | 2022/04/18 08:00 | Francis Casey Alcantara v Samuele Pieri | 3-6,3-6 |
| ITF M15 Sharm El Sheikh | 2022/04/06 14:05 | Francis Casey Alcantara v Marat Sharipov | 3-6,3-6 |