| Challenger Shenzhen - Kval | 2017/03/12 09:00 | Kuan-Yi Lee v Shuichi Sekiguchi | 6-3,6-4 |
| Challenger Astana | 2017/07/20 07:40 | Shuichi Sekiguchi v Alexander Bublik | 3-6,5-7 |
| Challenger Astana | 2017/07/18 05:00 | Dzmitry Zhyrmont v Shuichi Sekiguchi | 2-6,6-1,3-6 |
| Challenger Fergana | 2017/06/21 06:30 | Ilya Ivashka v Shuichi Sekiguchi | 6-2,6-2 |
| Challenger Fergana | 2017/06/19 06:00 | Shuichi Sekiguchi v Vladyslav Manafov | 6-4,3-6,7-5 |
| ITF Chinese Taipei F1 | 2017/06/13 03:25 | Tung-Lin Wu v Shuichi Sekiguchi | 6-4,6-2 |
| ITF Japan F7 | 2017/06/09 01:00 | Yosuke Watanuki v Shuichi Sekiguchi | 6-4,5-7,6-0 |
| ITF Japan F7 | 2017/06/07 06:40 | Yuki Matsuo v Shuichi Sekiguchi | 4-6,2-6 |
| ITF Japan F7 | 2017/06/05 04:10 | Hiroyasu Ehara v Shuichi Sekiguchi | 2-6,1-6 |
| ITF China F13 | 2017/07/21 04:00 | Kuan-Yi Lee v Sora Fukuda | 4-6,6-1,4-6 |
| ITF China F13 | 2017/07/20 02:00 | Kuan-Yi Lee v Cing-Yang Meng | 6-2,6-2 |
| ITF China F13 | 2017/07/18 06:40 | Kuan-Yi Lee v Hao Wu | 6-0,6-2 |
| ITF Chinese Taipei F2 | 2017/06/22 02:55 | Kuan-Yi Lee v Yosuke Watanuki | 4-6,6-7 |
| ITF Chinese Taipei F2 | 2017/06/20 03:00 | Kuan-Yi Lee v Richard Yang | 6-2,6-0 |
| ITF Women Taipei | 2017/06/19 01:30 | Kuan-Yi Lee v Ya-Hsin Lee | 2-6,1-6 |
| ITF Chinese Taipei F1 | 2017/06/15 03:50 | Tyler Lu v Kuan-Yi Lee | 6-4,6-3 |
| ITF Chinese Taipei F1 | 2017/06/13 02:00 | Chih-Jen Ho v Kuan-Yi Lee | 0-6,1-6 |