Stadium: Court 7 Round: 44 Ground: Hardcourt outdoor
| ITF M15 - Cancun | 2021/10/03 15:30 | Seita Watanabe v Fernando A. Z. Cantillana | 6-2,6-0 |
| ITF M15 - Cancun | 2021/09/30 14:30 | Christian Langmo v Seita Watanabe | 6-2,6-4 |
| ITF M15 - Cancun | 2021/09/28 17:00 | Alejandro Mendoza v Seita Watanabe | 6-7,0-6 |
| ITF M15 - Cancun | 2021/09/21 14:00 | Seita Watanabe v Leonardo Civita-Telles | 3-6,6-4,5-7 |
| ITF M15 - Caïro | 2021/09/09 08:00 | Seita Watanabe v Maxime Mora | 5-7,2-6 |
| ITF M15 - Caïro | 2021/09/08 08:00 | Seita Watanabe v Elbert Barr | 6-0,6-0 |
| ITF M15 - Caïro | 2021/09/01 09:50 | Fares Zakaria v Seita Watanabe | 6-2,7-6 |
| ITF - M15 Monastir | 2021/08/24 07:30 | Seita Watanabe v Kai Lemstra | 1-6,1-6 |
| ITF M15 - Cancun | 2021/09/26 15:00 | Ricardo Reyna v Enzo Frances Tessari | 4-6,6-3,10-6 |
| ITF M15 - Cancun | 2021/09/19 14:00 | Colin Markes v Enzo Frances Tessari | 6-1,6-3 |
| ITF - M15 Heraklion | 2021/06/06 09:00 | Austin Ansari v Enzo Frances Tessari | 6-0,6-2 |
| ITF M15 - Marbella | 2021/05/26 07:30 | Fouad Behbehani v Enzo Frances Tessari | 6-3,6-3 |
| ITF M15 - Majadahonda | 2021/05/02 16:15 | Rishab Agarwal v Enzo Frances Tessari | 7-6,6-2 |
| ITF M25 - Vale Do Lobo | 2021/03/07 14:00 | Hugo Pontico v Enzo Frances Tessari | 6-1,6-1 |