Stadium: Court 4 Round: 19 Ground: Hardcourt outdoor
| Challenger Yokohama | 2022/10/30 02:45 | Ji Sung Nam v Taisei Ichikawa | 6-7,5-7 |
| ITF M25 Kashiwa | 2022/09/27 01:00 | Taisei Ichikawa v Shintaro Imai | 6-7,6-4,2-6 |
| ITF M25 Sapporo | 2022/09/07 02:40 | Ryota Tanuma v Taisei Ichikawa | 6-0,6-0 |
| ITF M25 Sapporo | 2022/09/01 01:00 | Yuki Mochizuki v Taisei Ichikawa | 6-0,6-7,6-2 |
| ITF M15 Cancun | 2022/08/25 13:30 | Taisei Ichikawa v Alejandro H Franco | 6-7,6-1,3-6 |
| ITF M15 Cancun | 2022/08/16 14:00 | Taisei Ichikawa v Marco Brugnerotto | 5-7,6-2,5-7 |
| ITF M15 Cancun | 2022/08/11 16:30 | Jaimee Floyd Angele v Taisei Ichikawa | 6-1,4-6,6-3 |
| ITF M15 Cancun | 2022/08/10 14:00 | Arman Zamani v Taisei Ichikawa | 0-6,1-6 |
| Challenger Yokohama | 2022/10/30 02:35 | Seiya Nakanishi v Daisuke Sumizawa | 3-6,0-6 |
| Challenger Busan | 2022/10/16 04:35 | Daisuke Sumizawa v Naoki Nakagawa | 7-6,4-6,1-6 |
| ITF M25 Sapporo | 2022/09/02 01:00 | Shuichi Sekiguchi v Daisuke Sumizawa | 7-6,7-6 |
| ITF M25 Sapporo | 2022/09/01 04:35 | Daisuke Sumizawa v Shintaro Imai | 6-2,2-6,6-1 |
| ITF M25 Sapporo | 2022/08/30 02:55 | Keisuke Saitoh v Daisuke Sumizawa | 5-7,6-3,4-6 |
| ITF M15 Kuching | 2022/08/03 01:00 | Daisuke Sumizawa v Ji Hoon Son | 1-6,2-6 |
| ITF M15 Kuala Lumpur | 2022/07/27 02:45 | Kazuma Kawachi v Daisuke Sumizawa | 4-6,7-5,6-3 |
| ITF M15 Seremban | 2022/07/24 01:00 | Shinji Hazawa v Daisuke Sumizawa | 0-6,2-6 |