Stadium: Court 4 Round: 26 Ground: Hardcourt outdoor
| Challenger Zhangjiagang | 2017/09/05 08:00 | Shuichi Sekiguchi v Kento Takeuchi | 6-4,6-3 |
| ITF Hong Kong F4 | 2016/12/22 23:00 | Shuichi Sekiguchi v Kento Takeuchi | 5-7,6-3,6-2 |
| ITF Thailand F9 | 2015/06/20 03:00 | Kento Takeuchi v Shuichi Sekiguchi | 1-6,2-6 |
| ITF Japan F2 | 2014/03/21 01:30 | Kento Takeuchi v Shuichi Sekiguchi | 1-6,3-6 |
| ITF M25 Tay Ninh | 2019/10/08 06:35 | Kento Takeuchi v Chien Hsun Lo | 6-4,6-4 |
| ITF M15 Nanchang | 2019/10/02 03:55 | Kento Takeuchi v Ye Cong Mo | 3-6,2-6 |
| ITF M15 Nanchang | 2019/09/26 02:00 | Uisung Park v Kento Takeuchi | 6-3,6-4 |
| ITF M15 Nanchang | 2019/09/25 02:00 | Zihao Xia v Kento Takeuchi | 4-6,4-6 |
| ITF M15 Hua Hin | 2019/09/05 03:00 | Ajeet Rai v Kento Takeuchi | 7-5,6-2 |
| ITF M15 Hua Hin | 2019/09/04 08:30 | Credit Chaiyarin v Kento Takeuchi | 2-6,5-7 |
| Challenger Baotou | 2019/08/27 03:30 | Kento Takeuchi v Miljan Zekic | 6-4,3-6,4-6 |
| ITF M15 Jakarta | 2019/08/15 04:35 | Kento Takeuchi v Aryan Goveas | 3-6,4-6 |
| ITF M25 Tay Ninh | 2019/10/08 05:45 | Sidharth Rawat v Shuichi Sekiguchi | 0-6,1-6 |
| Challenger Kaohsiung | 2019/09/17 12:15 | Shuichi Sekiguchi v Prajnesh Gunneswaran | 3-6,2-6 |
| Challenger Kaohsiung | 2019/09/16 06:05 | Ray Ho v Shuichi Sekiguchi | 6-7,3-6 |
| Challenger Shanghai | 2019/09/12 06:30 | Yasutaka Uchiyama v Shuichi Sekiguchi | 6-4,6-3 |
| Challenger Shanghai | 2019/09/11 06:45 | Shuichi Sekiguchi v Saketh Myneni | 4-6,6-3,7-6 |
| Challenger Shanghai | 2019/09/09 06:05 | Jacob Grills v Shuichi Sekiguchi | 6-3,1-6,1-6 |
| Challenger Jinan | 2019/09/04 06:30 | Akira Santillan v Shuichi Sekiguchi | 6-1,6-2 |
| Challenger Jinan | 2019/09/03 04:55 | Mukund Sasikumar v Shuichi Sekiguchi | 3-6,3-6 |