Stadium: Court 4 Round: 26 Ground: Hardcourt outdoor
| Zhangjiagang, China | 2017/09/05 08:00 | Sekiguchi, Shuichi v Takeuchi, Kento (1987) | 6-4,6-3 |
| Hong Kong F4, Simples | 2016/12/22 23:00 | Sekiguchi, Shuichi v Takeuchi, Kento (1987) | 5-7,6-3,6-2 |
| ITF Thailand F9 | 2015/06/20 03:00 | Takeuchi, Kento (1987) v Sekiguchi, Shuichi | 1-6,2-6 |
| ITF Japan F2 | 2014/03/21 01:30 | Takeuchi, Kento (1987) v Sekiguchi, Shuichi | 1-6,3-6 |
| ITF M25 Tay Ninh | 2019/10/08 06:35 | Takeuchi, Kento (1987) v Lo, Chien Hsun | 6-4,6-4 |
| Nanchang, Singles M-ITF-CHN-16A | 2019/10/02 03:55 | Takeuchi, Kento (1987) v Ye Cong Mo | 3-6,2-6 |
| Nanchang, Singles M-ITF-CHN-16A | 2019/09/26 02:00 | Park, Uisung v Takeuchi, Kento (1987) | 6-3,6-4 |
| Nanchang, Singles M-ITF-CHN-16A | 2019/09/25 02:00 | Xia, Zihao v Takeuchi, Kento (1987) | 4-6,4-6 |
| Hua Hin, Singles M-ITF-THA-07A | 2019/09/05 03:00 | Ajeet Rai v Takeuchi, Kento (1987) | 7-5,6-2 |
| Hua Hin, Singles M-ITF-THA-07A | 2019/09/04 08:30 | Credit Chaiyarin v Takeuchi, Kento (1987) | 2-6,5-7 |
| Baotou, Chine | 2019/08/27 03:30 | Takeuchi, Kento (1987) v Miljan Zekic | 6-4,3-6,4-6 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2019/08/15 04:35 | Takeuchi, Kento (1987) v Goveas, Aryan | 3-6,4-6 |
| ITF M25 Tay Ninh | 2019/10/08 05:45 | Sidharth Rawat v Sekiguchi, Shuichi | 0-6,1-6 |
| Challenger Kaohsiung | 2019/09/17 12:15 | Sekiguchi, Shuichi v Gunneswaran, Prajnesh | 3-6,2-6 |
| Challenger Kaohsiung | 2019/09/16 06:05 | Ray Ho v Sekiguchi, Shuichi | 6-7,3-6 |
| Challenger Shanghai | 2019/09/12 06:30 | Yasutaka Uchiyama v Sekiguchi, Shuichi | 6-4,6-3 |
| Challenger Shanghai | 2019/09/11 06:45 | Sekiguchi, Shuichi v Myneni, Saketh | 4-6,6-3,7-6 |
| Challenger Shanghai | 2019/09/09 06:05 | Grills, Jacob v Sekiguchi, Shuichi | 6-3,1-6,1-6 |
| Jinan, China | 2019/09/04 06:30 | Akira Santillan v Sekiguchi, Shuichi | 6-1,6-2 |
| Jinan, China | 2019/09/03 04:55 | Mukund Sasikumar v Sekiguchi, Shuichi | 3-6,3-6 |