Stadium: Court C Round: 14 Ground: Hardcourt indoor
| Challenger Gwangju | 2019/05/15 03:40 | Duckhee Lee v Yunseong Chung | 4-6,2-6 |
| Challenger Yokohama | 2022/11/02 03:25 | Yunseong Chung v Kaichi Uchida | 6-7,3-6 |
| Challenger Yokohama | 2022/11/01 02:55 | Masamichi Imamura v Yunseong Chung | 3-6,4-6 |
| Challenger Busan | 2022/10/20 02:00 | Seong Chan Hong v Yunseong Chung | 6-3,7-5 |
| Challenger Busan | 2022/10/18 06:35 | Yunseong Chung v Chun Hsin Tseng | 7-5,7-5 |
| Challenger Gwangju | 2022/10/04 05:30 | Yunseong Chung v Ji Sung Nam | 6-1,3-6,5-7 |
| Challenger Gwangju | 2022/10/03 04:00 | Yunseong Chung v Seita Watanabe | 6-2,7-6 |
| ATP Seoul | 2022/09/27 10:00 | Soonwoo Kwon v Yunseong Chung | 7-6,6-7,6-1 |
| ATP Seoul | 2022/09/25 03:50 | Shintaro Mochizuki v Yunseong Chung | 5-7,4-6 |
| Challenger Busan | 2022/10/16 03:05 | Mukund Sasikumar v Duckhee Lee | 6-1,6-4 |
| Challenger Gwangju | 2022/10/04 03:00 | Duckhee Lee v Maximilian Neuchrist | 6-4,0-6,3-6 |
| Challenger Gwangju | 2022/10/03 03:20 | Keegan Smith v Duckhee Lee | 2-6,1-6 |
| Challenger Gwangju | 2022/10/02 03:55 | Se Hyuk Cho v Duckhee Lee | 1-6,0-6 |
| ATP Seoul | 2022/09/24 04:05 | Duckhee Lee v Tung-Lin Wu | 6-4,4-6,5-7 |
| ITF M15 - Daegu | 2022/09/03 01:45 | Duckhee Lee v Cheong-Eui Kim | 5-7,1-6 |
| ITF M15 - Daegu | 2022/09/02 02:00 | Duckhee Lee v Geun Jun Kim | 6-3,6-2 |
| ITF M15 - Daegu | 2022/09/01 02:00 | Duckhee Lee v Ryuki Matsuda | 7-6,6-2 |