Stadium: Court B Round: 19 Ground: Hardcourt outdoor
| ITF M25 Sapporo | 2024/09/08 02:00 | Kokoro Isomura v Naoki Nakagawa | 6-3,6-2 |
| ITF M25 Sapporo | 2023/09/08 01:00 | Naoki Nakagawa v Kokoro Isomura | 6-2,6-0 |
| Challenger Nonthaburi | 2025/01/05 03:00 | Naoki Nakagawa v Sanhui Shin | 3-6,6-4,6-3 |
| Challenger Yokkaichi | 2024/11/28 03:05 | Rei Sakamoto v Naoki Nakagawa | 7-6,6-3 |
| Challenger Yokkaichi | 2024/11/25 05:15 | Dane Sweeny v Naoki Nakagawa | 6-7,2-6 |
| Challenger Yokohama | 2024/11/18 02:30 | Ji Sung Nam v Naoki Nakagawa | 6-3,6-3 |
| 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 Nonthaburi | 2025/01/05 05:30 | Natthayut Nithithananont v Kokoro Isomura | 2-6,1-6 |
| Challenger Nonthaburi | 2024/12/30 06:00 | Clement Tabur v Kokoro Isomura | 6-2,6-1 |
| Challenger Nonthaburi | 2024/12/29 08:55 | Thanaphat Boosarawongse v Kokoro Isomura | 3-6,5-7 |
| Challenger Yokkaichi | 2024/11/25 03:55 | Kaichi Uchida v Kokoro Isomura | 6-0,6-1 |
| Challenger Yokohama | 2024/11/17 02:05 | Naoya Honda v Kokoro Isomura | 7-6,4-6,7-5 |
| Challenger Matsuyama | 2024/11/08 03:05 | Kokoro Isomura v Yosuke Watanuki | 0-6,5-7 |
| Challenger Matsuyama | 2024/11/07 04:45 | Kokoro Isomura v Elias Ymer | 6-3,5-7,6-3 |
| Challenger Matsuyama | 2024/11/05 02:30 | Kokoro Isomura v Jurij Rodionov | 6-4,6-3 |