Stadium: Court 5 Round: 27 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/02/24 11:15 | Kazuma Kawachi v Renta Tokuda | 3-6,2-6 |
| ITF M15 Monastir | 2021/12/23 11:30 | Aziz Ouakaa v Kazuma Kawachi | 6-7,1-6 |
| ITF M15 Monastir | 2021/12/22 12:35 | Martin Breysach v Kazuma Kawachi | 6-7,4-6 |
| ITF M15 Monastir | 2021/09/22 10:35 | Kazuma Kawachi v Wissam Abderrahman | 6-3,6-2 |
| ITF M15 Monastir | 2021/09/21 08:00 | Kazuma Kawachi v Nicolo Pozzani | 7-6,6-4 |
| ITF M15 Monastir | 2021/09/19 09:00 | Kazuma Kawachi v Egor Tsarapkin | 6-1,6-1 |
| ITF M15 Monastir | 2021/07/21 08:30 | Kazuma Kawachi v Gabriele Bosio | 4-6,0-6 |
| ITF M15 Monastir | 2021/07/19 14:00 | Kazuma Kawachi v Joshua Sheehy | 7-5,7-5 |
| ITF M15 Monastir | 2021/07/19 09:00 | Kazuma Kawachi v Amaan Siddiqui | 6-2,6-2 |
| ITF M15 Monastir | 2021/12/23 12:00 | Matas Vasiliauskas v Renta Tokuda | 1-6,1-6 |
| ITF M15 Monastir | 2021/12/22 13:00 | Wissam Abderrahman v Renta Tokuda | 1-6,2-6 |
| ITF M25 Falun | 2021/09/28 14:55 | Renta Tokuda v Leandro Riedi | 4-6,2-6 |
| ITF M25 Jonkoping | 2021/09/23 09:30 | Renta Tokuda v Otto Virtanen | 4-6,3-6 |
| ITF M25 Jonkoping | 2021/09/22 08:00 | Yuta Shimizu v Renta Tokuda | 1-6,5-7 |
| ITF M25 Jonkoping | 2021/09/21 10:45 | Renta Tokuda v Sergey Fomin | 6-4,6-4 |
| ITF M25 Sintra | 2021/09/15 09:00 | Renta Tokuda v Pedro Araujo | 2-6,4-6 |
| ITF M25 Sintra | 2021/09/08 13:55 | Renta Tokuda v Govind Nanda | 2-6,1-6 |