Stadium: Center A Round: 27 Ground: Hardcourt outdoor
| ITF M25 Sapporo | 2023/09/15 00:55 | Naoki Nakagawa v Seita Watanabe | 6-3,6-2 |
| ITF M25 Sapporo | 2023/09/13 01:00 | Naoki Nakagawa v Yusuke Kusuhara | 6-2,7-6 |
| ITF M25 Sapporo | 2023/09/09 02:00 | Naoki Nakagawa v Shuichi Sekiguchi | 7-5,3-6,5-7 |
| ITF M25 Sapporo | 2023/09/08 01:00 | Naoki Nakagawa v Kokoro Isomura | 6-2,6-0 |
| ITF M25 Sapporo | 2023/09/07 00:55 | Naoki Nakagawa v Shunsuke Wakita | 4-6,6-2,6-0 |
| ITF M25 Sapporo | 2023/09/06 01:00 | Naoki Nakagawa v Naoya Honda | 7-6,6-4 |
| ITF M25 Hong Kong | 2023/09/03 02:00 | Naoki Nakagawa v Adam Moundir | 2-6,6-4,6-10 |
| ITF M25 Hong Kong | 2023/08/31 02:00 | Naoki Nakagawa v Keisuke Saitoh | 6-4,6-7,6-1 |
| ITF M25 Sapporo | 2023/09/15 00:55 | Koki Matsuda v Daisuke Sumizawa | 6-0,7-6 |
| ITF M25 Sapporo | 2023/09/12 05:40 | Takuya Kumasaka v Koki Matsuda | 0-6,2-6 |
| ITF M25 Sapporo | 2023/09/04 01:00 | Koki Matsuda v Ko Suzuki | 6-1,4-6,7-10 |
| ITF M25 Tainan | 2023/08/15 04:45 | Koki Matsuda v Makoto Ochi | 3-6,7-5,4-6 |
| ITF M25 Jakarta | 2023/08/09 05:30 | Koki Matsuda v Arthur Weber | 2-6,2-6 |
| UTR Pro Osaka | 2023/07/30 02:00 | Koki Matsuda v Rikuto Yamaguchi | 7-6,6-1 |
| UTR Pro Osaka | 2023/07/29 01:05 | Koki Matsuda v Min Soo Chae | 7-5,5-2 |
| UTR Pro Osaka | 2023/07/27 07:32 | Koki Matsuda v Jake Bhangdia | 6-2,6-4 |