Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| Sapporo, Singles Main, M-ITF-JPN-02A | 2022/09/04 02:00 | Rio Noguchi v Sekiguchi, Shuichi | 4-6,7-5,6-2 |
| Sapporo, Singles Main, M-ITF-JPN-02A | 2022/09/03 01:00 | Yuki Mochizuki v Sekiguchi, Shuichi | 6-0,2-6,3-6 |
| Sapporo, Singles Main, M-ITF-JPN-02A | 2022/09/02 01:00 | Sekiguchi, Shuichi v Daisuke Sumizawa | 7-6,7-6 |
| 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 |
| Sapporo, Singles Main, M-ITF-JPN-02A | 2022/08/30 03:30 | Taketo Takamisawa v Masamichi Imamura | 6-3,4-6,6-2 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2022/08/16 05:50 | Kazuki Nishiwaki v Masamichi Imamura | 6-3,3-6,6-1 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2022/08/11 02:00 | Mukund Sasikumar v Masamichi Imamura | 6-4,6-3 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2022/08/10 02:00 | Shuannon Tricerri v Masamichi Imamura | 2-6,1-6 |
| ITF M15 Cancun | 2022/07/23 13:30 | Masamichi Imamura v Enzo Wallart | 3-6,4-6 |
| ITF M15 Cancun | 2022/07/21 14:00 | Masamichi Imamura v Kousuke Ogura | 7-5,6-3 |
| ITF M15 Cancun | 2022/07/16 14:00 | Masamichi Imamura v Adam Walton | 3-6,3-6 |
| ITF M15 Cancun | 2022/07/15 14:00 | Masamichi Imamura v Mwendwa Mbithi | 6-2,6-2 |