Stadium: Court 8 Round: 54 Ground: Hardcourt outdoor
| Gimcheon, Singles M-ITF-KOR-03A | 2019/06/12 04:00 | Sanhui Shin v Kim, Sung Hun | 6-4,6-3 |
| Gimcheon, Singles M-ITF-KOR-03A | 2019/06/11 02:55 | Wakita, Shunsuke v Kim, Sung Hun | 5-7,6-2,6-10 |
| Gimcheon, Singles M-ITF-KOR-03A | 2019/06/10 04:50 | Choi, Seungri v Kim, Sung Hun | 3-6,4-6 |
| ITF - M15 Daegu | 2019/06/05 01:00 | Kim, Sung Hun v Sora Fukuda | 2-6,3-6 |
| ITF - M15 Daegu | 2019/06/04 02:45 | Sookton-Eng, Chanchai v Kim, Sung Hun | 3-6,4-6 |
| ITF - M15 Daegu | 2019/06/03 01:25 | Jin, Hyun Bin v Kim, Sung Hun | 4-6,3-6 |
| ITF Korea F6 | 2018/08/29 03:00 | Kim, Sung Hun v Song, Min-Kyu | 2-6,2-6 |
| ITF Korea F6 | 2018/08/27 02:00 | Kim, Sung Hun v Kim, Seong Kwan | 4-6,6-7 |
| Gimcheon, Singles M-ITF-KOR-03A | 2019/06/12 02:25 | Kim, Young Seok v Uisung Park | 4-6,2-6 |
| ITF - M15 Daegu | 2019/06/08 01:00 | Oh, Seong-Gook v Kim, Young Seok | 6-2,6-2 |
| ITF - M15 Daegu | 2019/06/06 04:45 | Taisei Ichikawa v Kim, Young Seok | 3-6,6-3,5-7 |
| ITF - M15 Daegu | 2019/06/05 05:00 | Kim, Young Seok v Niki, Takuto | 6-4,6-3 |
| ITF - M15 Daegu | 2019/06/04 03:25 | Kim, Young Seok v Kim, Kangjae | 6-1,6-0 |
| ITF - M15 Daegu | 2019/06/03 01:00 | Kim, Young Seok v Han, Jin Sung | 6-4,6-4 |
| Challenger - Busan | 2019/05/07 02:00 | Kim, Young Seok v Luke Saville | 1-6,0-6 |
| ITF Thailand F7 | 2018/10/30 07:05 | Kim, Young Seok v Ehara, Hiroyasu | 6-7,1-6 |