Stadium: Court 15 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Daegu | 2023/06/09 00:50 | Yunseong Chung v Uisung Park | 6-7,3-6 |
| ITF M25 Daegu | 2023/06/07 03:55 | Yunseong Chung v Suk Hyun Choo | 6-3,6-1 |
| Challenger Busan | 2023/05/11 06:40 | Yunseong Chung v Gabriel Diallo | 6-7,6-7 |
| Challenger Busan | 2023/05/09 06:15 | Yunseong Chung v Tung-Lin Wu | 7-5,6-2 |
| Challenger Gwangju | 2023/05/05 04:45 | Yunseong Chung v Jason Jung | 6-3,3-6,4-6 |
| Challenger Gwangju | 2023/05/02 06:40 | Yunseong Chung v Kaichi Uchida | 7-6,6-3 |
| Challenger Seoul | 2023/04/29 06:00 | Yunseong Chung v Aleksandar Vukic | 6-7,1-6 |
| Challenger Seoul | 2023/04/28 04:00 | Rinky Hijikata v Yunseong Chung | 2-6,3-6 |
| ITF M25 Daegu | 2023/06/08 02:25 | Geun Jun Kim v Yeongseok Jeong | 6-1,2-6,6-4 |
| ITF M25 Daegu | 2023/06/06 01:05 | Yeongseok Jeong v Yunseok Jang | 7-5,4-6,6-1 |
| ITF M25 Jakarta | 2023/04/21 03:00 | Leo Borg v Yeongseok Jeong | 6-0,6-0 |
| ITF M25 Jakarta | 2023/04/20 03:50 | Yeongseok Jeong v Ray Ho | 6-4,6-4 |
| ITF M25 Jakarta | 2023/04/19 02:30 | Renta Tokuda v Yeongseok Jeong | 6-7,6-3,3-6 |
| ITF M25 Jakarta | 2023/04/18 02:00 | Yeongseok Jeong v Tegar A S Wibowo | 6-2,6-2 |
| ITF M25 Jakarta | 2023/04/17 04:30 | Yeongseok Jeong v Andrei Duarte | 6-4,6-4 |
| ITF M25 Jakarta | 2023/04/11 04:05 | Yeongseok Jeong v Sanhui Shin | 6-4,3-6,8-10 |