Stadium: Center Court A Round: 26 Ground: Hardcourt outdoor
| ITF M15 Heraklion | 2022/05/21 10:20 | Shuichi Sekiguchi v Omar Jasika | 4-6,2-6 |
| ITF M15 Heraklion | 2022/05/20 07:00 | Hugo Pontico v Shuichi Sekiguchi | 1-6,0-6 |
| ITF M15 Heraklion | 2022/05/19 06:55 | Kelsey Stevenson v Shuichi Sekiguchi | 0-6,3-6 |
| ITF M15 Heraklion | 2022/05/18 07:00 | Matic Dimic v Shuichi Sekiguchi | 0-6,0-6 |
| ITF M15 Heraklion | 2022/05/13 07:00 | Shuichi Sekiguchi v Colin Markes | 3-6,6-3,3-6 |
| ITF M15 Heraklion | 2022/05/12 11:05 | Shuichi Sekiguchi v Sebastian Dominko | 7-6,6-1 |
| ITF M15 Heraklion | 2022/05/10 08:30 | Shuichi Sekiguchi v Matthew Dellavedova | 6-4,6-2 |
| ITF M15 Sharm El Sheikh | 2022/04/01 08:00 | Dominik Boehler v Shuichi Sekiguchi | 4-6,6-4,7-5 |