Stadium: Court 7 Round: 27 Ground: Hardcourt outdoor
| Sapporo, Singles Main, M-ITF-JPN-02A | 2022/09/01 05:30 | Sekiguchi, Shuichi v Takeuchi, Kento (1987) | 6-2,6-4 |
| Sapporo, Singles Main, M-ITF-JPN-02A | 2022/09/01 01:00 | Sekiguchi, Shuichi v Yusuke Takahashi | 6-1,6-7,6-2 |
| ITF M15 Changwon | 2022/08/24 05:55 | Geni Inoue v Sekiguchi, Shuichi | 3-6,6-3,6-4 |
| ITF M15 Fountain Valley | 2022/07/09 19:40 | Zachary Svajda v Sekiguchi, Shuichi | 4-6,6-1,6-0 |
| ITF M15 Fountain Valley | 2022/07/08 16:50 | Yuta Kikuchi v Sekiguchi, Shuichi | 6-7,4-6 |
| ITF M15 Fountain Valley | 2022/07/07 16:55 | Ansari, Austin Ansari v Sekiguchi, Shuichi | 6-2,1-6,1-6 |
| ITF M15 Fountain Valley | 2022/07/06 18:45 | Jacob Bullard v Sekiguchi, Shuichi | 3-6,3-6 |
| Dallas, Singles Main, M-ITF-USA-18A | 2022/07/01 15:00 | Omni Kumar v Sekiguchi, Shuichi | 7-6,7-6 |
| Sapporo, Singles Main, M-ITF-JPN-02A | 2022/09/01 04:35 | Daisuke Sumizawa v Shintaro Imai | 6-2,2-6,6-1 |
| Sapporo, Singles Main, M-ITF-JPN-02A | 2022/08/30 02:55 | Keisuke Saitoh v Daisuke Sumizawa | 5-7,6-3,4-6 |
| Kuching, Singles Main, M-ITF-MAS-03A | 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 |
| ITF M15 Seremban | 2022/07/23 02:00 | Daisuke Sumizawa v Uisung Park | 6-3,7-6 |
| ITF M15 Seremban | 2022/07/22 01:00 | Takeuchi, Kento (1987) v Daisuke Sumizawa | 1-6,4-6 |
| ITF M15 Seremban | 2022/07/21 01:30 | Daisuke Sumizawa v Jie Cui | 7-6,6-2 |