Stadium: Court 10 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Cancun | 2021/09/28 17:00 | Michael Zhu v Siddhant Banthia | 6-4,6-3 |
| ITF M15 Monastir | 2021/08/09 07:30 | Alan F R Fierros v Siddhant Banthia | 7-6,6-2 |
| ITF M15 Monastir | 2021/08/08 09:30 | Bharath Nishok Kumaran v Siddhant Banthia | 1-6,7-5,6-10 |
| ITF M15 Monastir | 2021/08/05 07:30 | Siddhant Banthia v Erik Crepaldi | 3-6,2-6 |
| ITF M15 Monastir | 2021/08/04 07:30 | Davide Innocenti v Siddhant Banthia | 1-6,5-7 |
| ITF M15 Monastir | 2021/08/03 07:30 | Siddhant Banthia v Takuya Kumasaka | 6-3,5-7,13-11 |
| ITF M15 Monastir | 2021/08/02 08:30 | Siddhant Banthia v Preston Connor | 6-0,6-0 |
| ITF M15 Monastir | 2021/08/01 10:00 | Siddhant Banthia v Christian Kuehne | 6-4,7-5 |
| ITF M15 Cancun | 2021/10/05 14:00 | Seita Watanabe v Julian Cundom | 6-0,6-0 |
| ITF M15 Cancun | 2021/10/04 14:00 | Seita Watanabe v Enzo Frances Tessari | 6-0,6-0 |
| 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 Cairo | 2021/09/09 08:00 | Seita Watanabe v Maxime Mora | 5-7,2-6 |
| ITF M15 Cairo | 2021/09/08 08:00 | Seita Watanabe v Elbert Barr | 6-0,6-0 |