Stadium: Court 12 Round: 19 Ground: Hardcourt outdoor
| ITF M25 Changwon | 2023/06/12 02:35 | Lee, Junhyun v Dohyun Kim | 6-2,6-1 |
| ITF M25 Changwon | 2023/06/11 08:20 | Lee, Junhyun v Christopher Heck | 6-2,3-6,10-6 |
| Canberra, Singles M-ITF-AUS-06A | 2023/03/19 23:00 | Jiayang Dong v Lee, Junhyun | 4-6,6-4,10-8 |
| Canberra, Singles M-ITF-AUS-06A | 2023/03/13 23:00 | Alexander Klintcharov v Lee, Junhyun | 6-2,6-1 |
| Canberra, Singles M-ITF-AUS-06A | 2023/03/13 01:30 | Cooper Errey v Lee, Junhyun | 4-6,2-6 |
| ITF M25 Mumbai | 2022/11/13 05:30 | Rajan, Guhan v Lee, Junhyun | 5-7,6-3,10-7 |
| ITF M25 Indore | 2022/11/07 05:00 | Chirag Duhan v Lee, Junhyun | 6-2,6-4 |
| ITF M25 Indore | 2022/11/06 04:00 | Aaron Raj v Lee, Junhyun | 1-6,0-6 |
| ITF M25 Changwon | 2023/06/12 05:30 | Woohyuk Sim v Kim, Dong Ju | 6-3,3-6,11-13 |
| ITF M25 Changwon | 2023/06/11 08:30 | Kim, Ki Bum v Kim, Dong Ju | 6-4,1-6,10-12 |
| ITF M25 Daegu | 2023/06/08 01:00 | Kim, Dong Ju v Jeamoon Lee | 3-6,3-6 |
| ITF M25 Daegu | 2023/06/07 02:40 | Keisuke Saitoh v Kim, Dong Ju | 1-6,2-6 |
| ITF M25 Daegu | 2023/06/05 06:40 | Kim, Dong Ju v Song , Woodam | 6-1,6-2 |
| ITF M25 Daegu | 2023/06/05 02:50 | Kim, Dong Ju v Kim, Byeonghun | 6-2,6-2 |
| ITF M25 Daegu | 2023/06/04 01:00 | Kim, Dong Ju v Lee, Young Seok | 6-2,3-6,10-7 |
| ITF M15 Daegu | 2022/09/01 02:00 | Kazuma Kawachi v Kim, Dong Ju | 6-7,6-0,6-4 |