Stadium: Court 1 Round: 27 Ground: Hardcourt outdoor
| ITF China F9 | 2018/07/05 03:00 | Min-Kyu Song v Jie Cui | 7-5,6-0 |
| ITF China F9 | 2018/07/03 09:10 | Yuya Kibi v Min-Kyu Song | 5-7,2-6 |
| ITF Korea F3 | 2018/06/20 02:30 | Yunseong Chung v Min-Kyu Song | 7-6,7-6 |
| ITF Korea F3 | 2018/06/18 01:00 | Min-Kyu Song v Michael Zhu | 6-4,6-2 |
| ITF Korea F2 | 2018/06/13 04:55 | Takuto Niki v Min-Kyu Song | 3-6,7-5,6-3 |
| ITF Korea F1 | 2018/06/06 03:20 | Yong-Kyu Lim v Min-Kyu Song | 4-6,6-4,6-1 |
| ITF Vietnam F3 | 2018/05/16 06:00 | Takashi Saito v Min-Kyu Song | 6-1,6-0 |
| ITF Vietnam F3 | 2018/05/14 03:00 | Quang T Tran v Min-Kyu Song | 1-6,1-6 |
| ITF China F9 | 2018/07/05 04:35 | Chenhe Li v Shuichi Sekiguchi | 2-6,5-7 |
| ITF China F9 | 2018/07/03 07:00 | Lingxi Zhao v Shuichi Sekiguchi | 2-6,0-6 |
| Challenger Fergana | 2018/06/19 07:55 | Rubin Statham v Shuichi Sekiguchi | 6-1,6-7,2-6 |
| Challenger Fergana Qual | 2018/06/18 05:00 | Roman Safiullin v Shuichi Sekiguchi | 4-6,6-2,4-6 |
| Challenger Fergana Qual | 2018/06/17 06:25 | Altug Celikbilek v Shuichi Sekiguchi | 2-6,1-6 |
| Challenger Fergana Qual | 2018/06/16 09:40 | Shuichi Sekiguchi v Gerard Granollers-Pujol | 6-1,6-4 |
| Challenger Almaty Qual | 2018/06/10 04:30 | Shuichi Sekiguchi v Joao Menezes | 6-3,3-6,6-7 |
| Challenger Almaty Qual | 2018/06/09 04:00 | Shuichi Sekiguchi v Timur Maulenov | 7-5,6-3 |