Stadium: Sub Court B Round: 28 Ground: Hardcourt outdoor
| ITF - M15 Karuizawa | 2023/06/01 00:30 | Sora Fukuda v Daisuke Sumizawa | 6-3,6-4 |
| ITF - M25 Sapporo | 2023/09/08 01:00 | Sora Fukuda v Ryotaro Matsumura | 4-6,6-3,6-4 |
| ITF - M25 Sapporo | 2023/09/07 02:40 | Sora Fukuda v Issei Okamura | 6-1,6-2 |
| ITF - M25 Sapporo | 2023/09/05 02:00 | Sora Fukuda v Yuta Kikuchi | 7-6,7-5 |
| UTR Pro Noda | 2023/08/27 02:30 | Sora Fukuda v Naoya Honda | 6-3,6-3 |
| UTR Pro Noda | 2023/08/26 03:17 | Sora Fukuda v Yuta Tomida | 6-2,5-1 |
| UTR Pro Noda | 2023/08/25 03:00 | Sora Fukuda v Ryoma Ishii | 6-0,5-0 |
| UTR Pro Noda | 2023/08/23 03:30 | Sora Fukuda v Christopher Kosei Ono | 6-1,6-1 |
| UTR Pro Noda | 2023/08/22 02:00 | Sora Fukuda v Yamato Yukawa | 6-2,6-2 |
| ITF - M25 Sapporo | 2023/09/08 04:45 | Daisuke Sumizawa v Ko Suzuki | 7-5,6-2 |
| ITF - M25 Sapporo | 2023/09/07 01:00 | Tomohiro Masabayashi v Daisuke Sumizawa | 3-6,3-6 |
| ITF M25 - Hongkong | 2023/08/30 04:10 | Egor Gerasimov v Daisuke Sumizawa | 4-6,6-3,7-5 |
| ITF M25 - Hongkong | 2023/08/28 02:00 | Daisuke Sumizawa v David Agung Susanto | 6-2,6-2 |
| ITF M25 - Hongkong | 2023/08/27 02:30 | Daisuke Sumizawa v Pengyu Lu | 3-6,6-1,10-5 |
| ITF - M15 Caloundra | 2023/08/04 04:20 | Daisuke Sumizawa v Luke Saville | 4-6,4-6 |
| ITF - M15 Caloundra | 2023/08/03 00:00 | Daisuke Sumizawa v Jeremy Zhang | 6-2,6-1 |
| ITF - M15 Caloundra | 2023/08/01 04:45 | Daisuke Sumizawa v Taiyo Yamanaka | 4-6,6-3,7-6 |