Stadium: Court 3 Round: 27 Ground: Hardcourt outdoor
| Challenger Kobe | 2022/11/13 05:30 | Yunseong Chung v Duckhee Lee | 6-2,6-0 |
| Challenger Gwangju | 2019/05/15 03:40 | Duckhee Lee v Yunseong Chung | 4-6,2-6 |
| ITF M15 Nishi-Tokyo | 2024/03/21 02:20 | Renta Tokuda v Duckhee Lee | 3-6,3-6 |
| ITF M15 Nishi-Tokyo | 2024/03/19 03:30 | Yi Zhou v Duckhee Lee | 6-7,1-6 |
| ITF M15 Hinode | 2024/03/14 01:00 | Ryotaro Taguchi v Duckhee Lee | 2-6,6-0,6-3 |
| ITF M15 Hinode | 2024/03/12 01:00 | Masamichi Imamura v Duckhee Lee | 2-6,6-2,2-6 |
| ITF M15 Nakhon Si Thammarat | 2024/02/21 04:35 | Stefanos Sakellaridis v Duckhee Lee | 3-6,6-1,6-4 |
| ITF M15 Nakhon Si Thammarat | 2024/02/15 06:00 | Duckhee Lee v Sander Jong | 5-7,4-6 |
| ITF M15 Nakhon Si Thammarat | 2024/02/14 03:25 | Duckhee Lee v Kasidit Samrej | 6-4,3-6,6-1 |
| ITF M15 Yanagawa | 2023/12/31 01:30 | Duckhee Lee v Sanhui Shin | 3-6,4-6 |
| ITF M15 Nishi-Tokyo | 2024/03/21 00:55 | Linang Xiao v Yunseong Chung | 2-6,4-6 |
| ITF M15 Nishi-Tokyo | 2024/03/20 02:30 | Masamichi Imamura v Yunseong Chung | 6-7,2-6 |
| Challenger Pune | 2024/02/19 05:30 | Alexey Zakharov v Yunseong Chung | 6-3,5-7,6-4 |
| Challenger Pune | 2024/02/18 08:15 | Yunseong Chung v Rio Noguchi | 7-5,7-6 |
| Challenger Bengaluru | 2024/02/12 06:20 | Chun Hsin Tseng v Yunseong Chung | 7-5,4-6,6-2 |
| Challenger Bengaluru | 2024/02/11 09:30 | Adil Kalyanpur v Yunseong Chung | 4-6,3-6 |
| Challenger Nonthaburi | 2024/01/08 05:40 | Yunseong Chung v Christian Langmo | 2-6,0-6 |
| Challenger Nonthaburi | 2024/01/07 07:20 | Yunseong Chung v Congsup Congcar | 7-5,6-1 |