Stadium: Court 2 Round: 26 Ground: Clay
| ITF - Naples M15 | 2021/10/06 13:30 | Nikolay Sysoev v Fletcher Scott | 6-4,6-4 |
| ITF - Naples M15 | 2021/10/05 13:30 | Jake Krug v Nikolay Sysoev | 6-4,2-6,6-10 |
| ITF - Naples M15 | 2021/10/04 14:00 | Parth Aggarwal v Nikolay Sysoev | 2-6,5-7 |
| UTR Pro Tennis Series - Floryda | 2021/09/19 15:30 | Nikolay Sysoev v Timothy Phung | 7-5,1-6,5-3 |
| UTR Pro Tennis Series - Floryda | 2021/09/18 18:30 | Noureldin Adam v Nikolay Sysoev | 3-6,5-6 |
| UTR Pro Tennis Series - Floryda | 2021/09/16 19:30 | Nikolay Sysoev v Antonio M-Hidalgo | 6-3,7-5 |
| UTR Pro Tennis Series - Floryda | 2021/09/15 12:00 | Nikolay Sysoev v Roman Postolka | 2-6,2-6 |
| UTR Pro Tennis Series - Floryda | 2021/09/14 13:30 | Nikolay Sysoev v Michal Schmid | 6-7,2-5 |
| ITF - Naples M15 | 2021/10/06 13:30 | Jorge Cavero v Juan Ignacio Galarza | 0-6,3-6 |
| ITF - Madryt M25 | 2021/09/16 07:55 | Carlos Lopez Montagud v Juan Ignacio Galarza | 2-6,6-1,6-4 |
| ITF - Eupen M25 | 2021/09/09 11:45 | Mariano Kestelboim v Juan Ignacio Galarza | 6-4,6-2 |
| ITF - Eupen M25 | 2021/09/08 15:40 | Yannik Reuter v Juan Ignacio Galarza | 2-6,6-3,2-6 |
| ITF - Eupen M25 | 2021/09/07 07:30 | Juan Ignacio Galarza v Jip Van Assendelft | 4-6,6-2,10-3 |
| ITF - Eupen M25 | 2021/09/06 09:45 | Juan Ignacio Galarza v Adrian Oetzbach | 7-6,6-3 |
| ITF - Allershausen M15 | 2021/09/03 12:35 | Guy Den Ouden v Juan Ignacio Galarza | 7-5,6-3 |
| ITF - Allershausen M15 | 2021/09/02 10:55 | Sandro Kopp v Juan Ignacio Galarza | 4-6,0-6 |