Stadium: Court 9 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Anseong | 2024/06/09 06:30 | Ethan Cook v Sungbeen Sim | 6-7,4-6 |
| ITF M15 Harmon | 2024/06/06 04:15 | Kenta Miyoshi v Sungbeen Sim | 6-2,6-0 |
| ITF M15 Harmon | 2024/06/05 05:30 | Sungbeen Sim v Yamato Sueoka | 6-4,6-3 |
| ITF M15 Harmon | 2024/06/03 01:00 | Ethan Cook v Sungbeen Sim | 3-6,7-5,4-10 |
| ITF M15 Harmon | 2024/06/02 05:00 | Aidan Schembari v Sungbeen Sim | 2-6,0-6 |
| ITF M15 Karuizawa | 2024/05/30 01:00 | Sungbeen Sim v Tomohiro Masabayashi | 6-2,3-6,1-6 |
| ITF M15 Karuizawa | 2024/05/29 02:00 | Makoto Ochi v Sungbeen Sim | 6-3,3-6,5-10 |
| ITF M15 Karuizawa | 2024/05/27 01:00 | Taketo Takamisawa v Sungbeen Sim | 6-7,1-6 |
| ITF M15 Anseong | 2024/06/10 03:30 | Hangyeom Kim v Junhyun Lee | 1-6,4-6 |
| ITF M15 Anseong | 2024/06/09 06:30 | Woohyuk Sim v Junhyun Lee | 3-6,3-6 |
| 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 |