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