Stadium: Court 3 Round: 19 Ground: Hardcourt outdoor
| 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 |
| Challenger Zhangjiagang | 2024/08/25 04:30 | Ji Sung Nam v Ajeet Rai | 4-6,0-6 |
| Challenger Jinan | 2024/08/21 04:25 | Keegan Smith v Ji Sung Nam | 7-6,7-5 |
| Challenger Jinan | 2024/08/20 03:50 | Dominik Palan v Ji Sung Nam | 3-6,7-6,3-6 |
| Challenger Yokohama | 2024/11/17 04:50 | Yusuke Takahashi v Naoki Nakagawa | 4-6,4-6 |
| Challenger Kobe | 2024/11/11 08:00 | Matej Dodig v Naoki Nakagawa | 6-4,6-7,7-5 |
| Challenger Knoxville | 2024/11/04 19:00 | Naoki Nakagawa v Alexander Kotzen | 3-6,6-7 |
| Challenger Knoxville | 2024/11/03 22:35 | Naoki Nakagawa v Andres Urrea | 6-4,6-3 |
| Challenger Charlottesville | 2024/10/29 18:45 | Naoki Nakagawa v Alexis Galarneau | 4-6,1-6 |
| Challenger Charlottesville | 2024/10/28 17:00 | Naoki Nakagawa v Bruno Kuzuhara | 6-1,7-6 |
| Challenger Charlottesville | 2024/10/28 01:20 | Naoki Nakagawa v Ozan Baris | 6-7,7-6,7-6 |
| Challenger Charleston | 2024/09/27 19:00 | Bernard Tomic v Naoki Nakagawa | 6-1,6-3 |