Stadium: Court 4 Round: 26 Ground: Hardcourt outdoor
| ITF M25 Anseong | 2023/06/21 02:00 | Sanhui Shin v Issei Okamura | 6-2,6-3 |
| ITF M25 Changwon | 2023/06/18 02:00 | Yuki Mochizuki v Sanhui Shin | 3-6,3-6 |
| ITF M25 Changwon | 2023/06/17 01:50 | Sanhui Shin v Dominik Palan | 7-6,6-7,6-3 |
| ITF M25 Changwon | 2023/06/16 01:00 | Makoto Ochi v Sanhui Shin | 3-6,3-6 |
| ITF M25 Changwon | 2023/06/15 04:35 | Sanhui Shin v Geun Jun Kim | 6-0,6-4 |
| ITF M25 Changwon | 2023/06/13 01:00 | Sanhui Shin v Woobin Shin | 6-2,6-3 |
| ITF M15 Karuizawa | 2023/06/03 07:30 | Sanhui Shin v Yuta Kawahashi | 3-6,6-3,6-7 |
| ITF M15 Karuizawa | 2023/06/03 03:30 | Sanhui Shin v Jumpei Yamasaki | 6-3,7-6 |
| ITF M25 Anseong | 2023/06/21 02:00 | Jae Hwan Kim v Jeamoon Lee | 1-6,3-6 |
| ITF M25 Changwon | 2023/06/16 01:00 | Renta Tokuda v Jeamoon Lee | 6-4,6-3 |
| ITF M25 Changwon | 2023/06/15 01:55 | Jangjun Kim v Jeamoon Lee | 0-6,1-6 |
| ITF M25 Changwon | 2023/06/14 03:50 | Yeonsu Jeong v Jeamoon Lee | 6-7,3-6 |
| ITF M25 Daegu | 2023/06/11 02:00 | Uisung Park v Jeamoon Lee | 6-3,7-5 |
| ITF M25 Daegu | 2023/06/10 00:55 | Jeamoon Lee v Dominik Palan | 7-6,6-4 |
| ITF M25 Daegu | 2023/06/09 00:50 | Geun Jun Kim v Jeamoon Lee | 0-6,1-6 |
| ITF M25 Daegu | 2023/06/08 01:00 | Dong Ju Kim v Jeamoon Lee | 3-6,3-6 |