| ITF M25 Carrara | 2024/11/27 04:35 | Issei Okamura v Thomas Braithwaite | 3-6,1-6 |
| ITF M25 Carrara | 2024/11/26 00:00 | Naoki Tajima v Issei Okamura | 6-4,6-3 |
| ITF M25 Carrara | 2024/11/25 00:00 | Adrian Arcon v Issei Okamura | 4-6,1-6 |
| ITF M25 Caloundra | 2024/11/18 23:55 | Sam Ryan Ziegann v Issei Okamura | 3-6,6-4,10-4 |
| ITF M25 Caloundra | 2024/11/18 01:30 | Noah Brownrigg v Issei Okamura | 4-6,2-6 |
| ITF M15 Yanagawa | 2024/10/30 00:25 | Issei Okamura v Shunsuke Nakagawa | 5-7,3-6 |
| ITF M15 Tanagura | 2024/10/26 01:00 | Ryotaro Matsumura v Issei Okamura | 6-2,6-2 |
| ITF M15 Tanagura | 2024/10/25 00:30 | Issei Okamura v Yuichiro Inui | 6-4,6-7,6-3 |
| Challenger Yokkaichi | 2024/11/24 04:30 | Ji Sung Nam v Keisuke Saitoh | 1-6,3-6 |
| Challenger Yokohama | 2024/11/19 01:00 | Ji Sung Nam v Shintaro Mochizuki | 2-6,2-6 |
| Challenger Yokohama | 2024/11/18 02:30 | Ji Sung Nam v Naoki Nakagawa | 6-3,6-3 |
| Challenger Yokohama | 2024/11/17 05:10 | Philip Henning v Ji Sung Nam | 6-7,6-3,5-7 |
| Challenger Taipei | 2024/10/20 07:05 | Ji Sung Nam v Reese Stalder | 5-7,5-7 |
| Challenger Nonthaburi | 2024/09/25 03:00 | Ji Sung Nam v Gabriel Diallo | 6-7,0-6 |
| Challenger Nonthaburi | 2024/09/24 06:55 | Andre Ilagan v Ji Sung Nam | 4-6,4-6 |
| Challenger Nonthaburi | 2024/09/23 05:40 | Thantub Suksumrarn v Ji Sung Nam | 6-7,3-6 |