Round: 27 Ground: Hardcourt outdoor
| 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 |
| Hong Kong F4, Simples | 2016/12/21 23:00 | Sekiguchi, Shuichi v Wong, Hong Kit | 6-1,6-0 |
| Hong Kong F4, Simples | 2016/12/18 23:00 | Sekiguchi, Shuichi v Alberto Lim | 6-4,3-6,6-3 |
| Challenger Toyota | 2016/11/16 01:00 | Chung, Hyeon v Sekiguchi, Shuichi | 6-1,6-3 |
| Challenger Kobe | 2016/11/07 05:10 | Sekiguchi, Shuichi v Soeda, Go | 1-6,0-6 |
| Challenger Canberra 2 | 2016/11/02 02:15 | Sekiguchi, Shuichi v Marc Polmans | 1-6,2-6 |
| Challenger Canberra 2 | 2016/10/31 23:30 | Jenkins, Jarmere v Sekiguchi, Shuichi | 6-2,3-6,0-6 |
| Ningbo, China | 2016/10/19 04:25 | Sekiguchi, Shuichi v Soeda, Go | 3-6,0-6 |
| Ningbo, China | 2016/10/17 02:00 | Sekiguchi, Shuichi v Fajing Sun | 6-3,7-5 |
| Hong Kong F4, Simples | 2016/12/21 23:00 | Singh, Karunuday v Takeuchi, Kento (1987) | 3-6,4-6 |
| Hong Kong F4, Simples | 2016/12/19 23:00 | Harajchi, Aria v Takeuchi, Kento (1987) | 3-6,0-6 |
| ITF Indonesia F6 | 2016/12/18 05:00 | Enzo Couacaud v Takeuchi, Kento (1987) | 6-1,6-1 |
| ITF Indonesia F6 | 2016/12/17 04:00 | Hung, Jui-Chen v Takeuchi, Kento (1987) | 4-6,1-6 |
| ITF Indonesia F6 | 2016/12/16 03:00 | Takeuchi, Kento (1987) v Alcantara, Francis Casey | 6-4,6-2 |
| ITF Indonesia F6 | 2016/12/15 04:45 | Takeuchi, Kento (1987) v Sasongko, Aditya Hari | 6-4,6-2 |
| ITF Indonesia F6 | 2016/12/13 06:30 | Takeuchi, Kento (1987) v Rio Noguchi | 6-3,6-1 |
| ITF Indonesia F5 | 2016/12/09 04:45 | Yusuke Takahashi v Takeuchi, Kento (1987) | 6-0,6-3 |