Stadium: Court 3 Round: 62 Ground: Clay
| ITF M15 Antalya | 2021/06/27 06:30 | Vladimir Korolev v Credit Chaiyarin | 7-5,6-3 |
| ITF M15 Antalya | 2021/06/23 13:40 | Mircea-Alexandru Jecan v Vladimir Korolev | 6-2,6-2 |
| ITF M15 Antalya | 2021/06/22 07:00 | Vladimir Korolev v Filip Duda | 6-3,2-6,10-4 |
| ITF M15 Antalya | 2021/06/21 11:25 | Vladimir Korolev v Egor Matvievici | 6-4,6-2 |
| ITF M15 Antalya | 2021/06/20 07:00 | Vladimir Korolev v Adil Karimov | 6-2,6-1 |
| ITF M15 Antalya | 2021/05/17 07:00 | Thomas Deschamps v Vladimir Korolev | 6-4,4-6,10-7 |
| ITF M15 Antalya | 2021/05/12 08:40 | Vladimir Korolev v Timofey Skatov | 2-6,1-6 |
| ITF M15 Antalya | 2021/05/11 07:00 | Francisco Llanes v Vladimir Korolev | 3-6,5-7 |
| ITF M15 Antalya | 2021/06/27 06:30 | Nikolay Sysoev v Jason Janis | 6-3,6-4 |
| ITF M15 Antalya | 2021/06/20 07:00 | Fletcher Scott v Nikolay Sysoev | 6-1,7-5 |
| ITF M15 Antalya | 2021/06/14 07:30 | Nikolay Sysoev v Daniel Antonio Nunez | 2-6,3-6 |
| 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 |