Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF China F5 | 2017/04/13 05:05 | Tsung-Hua Yang v Shuichi Sekiguchi | 2-6,4-6 |
| 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 Japan F6 | 2017/05/31 01:00 | Gengo Kikuchi v Shuichi Sekiguchi | 6-4,6-2 |
| ITF Japan F6 | 2017/05/29 05:55 | Yuki Mochizuki v Shuichi Sekiguchi | 3-6,4-6 |
| ITF Chinese Taipei F2 | 2017/06/23 02:00 | Shintaro Imai v Tsung-Hua Yang | 4-6,6-4,6-1 |
| ITF Chinese Taipei F2 | 2017/06/22 01:30 | Yu-Chang Wang v Tsung-Hua Yang | 2-6,1-6 |
| ITF Chinese Taipei F2 | 2017/06/21 03:35 | Ray Ho v Tsung-Hua Yang | 3-6,5-7 |
| Challenger Samarkand Qual | 2017/05/14 05:00 | Tsung-Hua Yang v Evgeny Karlovskiy | 4-6,6-7 |
| Challenger Karshi Qual | 2017/05/08 05:00 | Vladimir Ivanov v Tsung-Hua Yang | 6-2,4-6,6-3 |
| Challenger Karshi Qual | 2017/05/07 05:00 | Sharobiddin Abzalov v Tsung-Hua Yang | 2-6,1-6 |
| Challenger Karshi Qual | 2017/05/06 05:00 | Denis Yevseyev v Tsung-Hua Yang | 4-6,2-6 |
| Challenger Taipei | 2017/04/17 10:00 | Tsung-Hua Yang v Dudi Sela | 4-6,2-6 |