Stadium: Court 1 Round: 62
| ITF Korea F1 Qual | 2016/06/12 03:00 | Kim, Seong Kwan v Kim, Sung Hun | 6-0,6-3 |
| ITF Korea F5 | 2018/08/21 05:15 | Kim, Sung Hun v Yu Hsiou Hsu | 2-6,2-6 |
| ITF Korea F5 | 2018/08/20 01:00 | Kim, Sung Hun v Lee, Dae-Hee | 6-1,6-1 |
| ITF Korea F5 | 2018/08/19 02:00 | Kim, Sung Hun v Kang, Dong Woon | 6-1,6-1 |
| ITF Korea F5 | 2018/08/18 02:00 | Sin, Dong-Hak v Kim, Sung Hun | 5-7,1-6 |
| ITF Korea F4 | 2018/08/13 03:00 | Kim, Sung Hun v Choi, Jae-Won | 4-6,6-7 |
| Korea F3, Singles Qualifying | 2018/06/16 03:30 | Kang, Ku Keon v Kim, Sung Hun | 6-4,7-5 |
| ITF Korea F2 | 2018/06/10 05:00 | Kim, Sung Hun v Ratsaratany, Loic | 4-6,6-4,3-6 |
| ITF Korea F2 | 2018/06/09 01:00 | Jang, Woo Hyeok v Kim, Sung Hun | 2-6,2-6 |
| ITF Korea F6 | 2018/08/25 01:00 | Kim, Seong Kwan v Kim, Yu-Seob | 6-4,6-3 |
| Korea F3, Singles Qualifying | 2018/06/16 02:00 | Yoon, Jaeheon v Kim, Seong Kwan | 6-4,6-4 |
| ITF Korea F2 | 2018/06/10 02:00 | Park, Sung Jun v Kim, Seong Kwan | 7-6,6-1 |
| ITF Thailand F12 Qual | 2017/12/10 03:00 | Kim, Seong Kwan v Li, Yuanfeng | 1-6,3-6 |
| ITF Thailand F12 Qual | 2017/12/09 06:30 | Kim, Seong Kwan v Rakpuangchon, Vorachon | 7-5,6-1 |
| ITF Thailand F11 Qual | 2017/12/02 05:00 | Roberts, Charles v Kim, Seong Kwan | 6-2,7-6 |
| ITF Korea F4 | 2017/06/19 04:00 | Chung, Hong v Kim, Seong Kwan | 6-1,6-2 |
| ITF Korea F3 | 2017/06/13 02:50 | Kim, Seong Kwan v Moon, Ju-Hae | 1-6,1-6 |