Stadium: Court 4 Round: 62 Ground: Clay
| ITF M15 Antalya | 2021/06/13 07:30 | Suleyman Deniz Gursoy v Nikolay Sysoev | 2-6,4-6 |
| ITF M15 Cancun | 2020/03/08 20:00 | Jose Olivares v Nikolay Sysoev | 6-3,6-2 |
| ITF M25 Naples | 2020/02/09 15:00 | Nikolay Sysoev v Daniel Vrba | 1-6,3-6 |
| ITF M15 Cancun | 2020/01/26 19:00 | Osgar O'Hoisin v Nikolay Sysoev | 6-0,6-1 |
| ITF M15 Cancun | 2020/01/19 15:30 | Alexander Lebedev v Nikolay Sysoev | 6-2,6-2 |
| ITF M15 Cancun | 2020/01/12 17:30 | Yeudy Villar v Nikolay Sysoev | 6-3,6-2 |
| ITF M15 Cancun | 2020/01/12 14:00 | Nikolay Sysoev v Joao Victor Ortega | 6-1,6-0 |
| ITF M25 Naples | 2019/10/27 14:00 | Mehdi Laalej v Nikolay Sysoev | 6-2,6-1 |
| ITF M15 Antalya | 2021/06/13 07:30 | Caspar Schuetze v Daniel Antonio Nunez | 2-6,1-6 |
| ITF M15 Antalya | 2021/06/08 09:40 | Daniel Antonio Nunez v Buvaysar Gadamauri | 4-6,2-6 |
| ITF M15 Antalya | 2021/06/07 13:25 | Daniel Antonio Nunez v Dmitrii Vasilev | 6-1,6-1 |
| ITF M15 Antalya | 2021/06/06 07:30 | Daniel Antonio Nunez v Elbert Barr | 6-1,6-1 |
| ITF M15 Antalya | 2021/06/02 12:35 | Ignacio Carou v Daniel Antonio Nunez | 6-1,6-3 |
| ITF M15 Antalya | 2021/06/01 07:00 | Daniel Antonio Nunez v Stefan Loncar | 3-6,6-4,10-3 |
| ITF M15 Antalya | 2021/05/31 08:30 | Daniel Antonio Nunez v John Sperle | 6-4,7-5 |
| ITF M15 Antalya | 2021/05/30 07:30 | Daniel Antonio Nunez v Burak Bilgin | 6-2,6-0 |