| ITF M15 Tsukuba | 2025/03/25 01:00 | Ji Sung Nam v Ryo Tabata | 6-7,4-6 |
| ITF M15 Nishi-Tokyo | 2025/03/22 01:30 | Ji Sung Nam v Takuya Kumasaka | 1-6,6-2,3-5 |
| ITF M15 Nishi-Tokyo | 2025/03/21 01:00 | Ji Sung Nam v Ryo Tabata | 6-4,6-4 |
| ITF M15 Nishi-Tokyo | 2025/03/20 01:00 | Ji Sung Nam v Junhyun Lee | 6-1,6-2 |
| ITF M15 Nishi-Tokyo | 2025/03/19 04:00 | Ji Sung Nam v Issei Okamura | 6-1,6-1 |
| ITF M15 Hinode | 2025/03/14 01:00 | Tai Leonard Sach v Ji Sung Nam | 3-6,6-2,7-5 |
| ITF M25 Launceston | 2025/02/27 00:00 | Ji Sung Nam v Yu Hsiou Hsu | 2-6,1-6 |
| ITF M25 Launceston | 2025/02/24 23:00 | Issei Okamura v Ji Sung Nam | 6-7,3-6 |
| ITF M25 Changwon | 2024/06/17 04:55 | Seung Woo Cho v Finley Hall | 5-7,2-6 |
| ITF M15 Daegu | 2024/06/04 01:00 | Jae Hwan Kim v Seung Woo Cho | 6-4,6-2 |
| ITF M15 Daegu | 2024/06/03 01:00 | Seung Woo Cho v Hyun Woo Cho | 6-3,7-5 |
| ITF M25 Anseong | 2023/06/19 05:25 | Seung Woo Cho v Hiroki Sakagawa | 6-1,1-6,6-10 |
| ITF M25 Anseong | 2023/06/18 01:00 | Seonyong Han v Seung Woo Cho | 5-7,3-6 |