Stadium: Court 17 Round: 54 Ground: Clay
| ITF M15 Lubbock | 2021/09/29 19:30 | Demetris Azoides v Parth Aggarwal | 7-5,6-1 |
| ITF M15 Lubbock | 2021/09/27 15:00 | Vittar, Francisco v Parth Aggarwal | 7-6,4-6,10-5 |
| Fayetteville, AR, Singles Qualifying, M-ITF-USA-31 | 2021/09/20 17:00 | Sander Jong v Parth Aggarwal | 6-0,6-3 |
| ITF M25 Champaign | 2021/09/13 17:00 | Gregg, Perry v Parth Aggarwal | 6-2,5-7,10-2 |
| UTR Pro Tennis Series Florida | 2021/09/11 15:00 | Parth Aggarwal v Kotan, Patrick | 2-3 |
| UTR Pro Tennis Series Florida | 2021/09/10 18:00 | Parth Aggarwal v Dusty Boyer | 3-6,4-5 |
| UTR Pro Tennis Series Florida | 2021/09/08 15:00 | Parth Aggarwal v Kiranpal Pannu | 6-7,6-4,0-5 |
| UTR Pro Tennis Series Florida | 2021/09/07 15:00 | Parth Aggarwal v Postolka, Roman | 1-6,1-6 |
| UTR Pro Tennis Series Florida | 2021/09/19 15:30 | Sysoev, Nikolay v Phung, Timothy | 7-5,1-6,5-3 |
| UTR Pro Tennis Series Florida | 2021/09/18 18:30 | Noureldin Adam v Sysoev, Nikolay | 3-6,5-6 |
| UTR Pro Tennis Series Florida | 2021/09/16 19:30 | Sysoev, Nikolay v Muniz Hidalgo, Antonio | 6-3,7-5 |
| UTR Pro Tennis Series Florida | 2021/09/15 12:00 | Sysoev, Nikolay v Postolka, Roman | 2-6,2-6 |
| UTR Pro Tennis Series Florida | 2021/09/14 13:30 | Sysoev, Nikolay v Schmid, Michal | 6-7,2-5 |
| UTR Pro Tennis Series Florida | 2021/09/13 12:00 | Sysoev, Nikolay v Omar Maldonado | 7-6,6-4 |
| ITF - M15 Monastir | 2021/08/01 09:00 | Baird, Drew v Sysoev, Nikolay | 6-1,6-2 |
| ITF - M15 Monastir | 2021/07/25 08:00 | Sysoev, Nikolay v Ansari, Austin Ansari | 2-6,0-6 |