Stadium: Court 12 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Anseong | 2023/06/20 02:00 | Woohyuk Sim v Shunsuke Mitsui | 0-6,2-6 |
| ITF M25 Changwon | 2023/06/12 05:30 | Woohyuk Sim v Dong Ju Kim | 6-3,3-6,11-13 |
| ITF M25 Changwon | 2023/06/11 07:25 | Hayeon Seong v Woohyuk Sim | 6-2,0-6,4-10 |
| Challenger Gwangju | 2023/04/30 03:50 | Tristan Schoolkate v Woohyuk Sim | 6-7,6-2,6-0 |
| ITF M15 Sharm El Sheikh | 2022/12/11 10:00 | Sergo Sikharulidze v Woohyuk Sim | 6-1,3-6,10-4 |
| ITF M15 Sharm El Sheikh | 2022/12/04 13:30 | Woohyuk Sim v Matteo Fondriest | 4-6,6-1,6-10 |
| ITF M15 Sharm El Sheikh | 2022/11/28 08:00 | Woohyuk Sim v Billy Blaydes | 4-6,4-6 |
| ITF M15 Sharm El Sheikh | 2022/11/27 11:30 | Edoardo L Cattaneo v Woohyuk Sim | 1-6,0-6 |
| ITF M15 Daegu | 2024/06/04 02:25 | Ji Hoon Son v Junhyun Lee | 6-2,6-0 |
| ITF M15 Karuizawa | 2024/05/27 01:00 | Sam Ryan Ziegann v Junhyun Lee | 6-3,3-6,11-9 |
| ITF M25 Luan | 2024/05/12 02:00 | Seon Yong Han v Junhyun Lee | 6-3,6-1 |
| ITF M25 Luan | 2024/05/12 02:00 | Junhyun Lee v You Du | 6-3,4-6,10-6 |
| ITF M25 Hammamet | 2024/02/19 12:00 | Manuel Mouilleron Salvo v Junhyun Lee | 7-5,6-2 |
| ITF M25 Hammamet | 2024/02/11 11:00 | Pietro Pampanin v Junhyun Lee | 6-4,6-3 |
| ITF M25 Hammamet | 2024/02/05 08:00 | Junhyun Lee v Omar Brigida | 2-6,7-5,8-10 |
| ITF M25 Hammamet | 2024/02/04 10:30 | Junhyun Lee v Gheorghe Claudiu Schinteie | 6-3,6-0 |