Stadium: Court 7 Round: 25 Ground: Hardcourt indoor
| ITF M15 Novomoskovsk | 2021/06/04 12:30 | Danylo Kalenichenko v Alexander Zgirovsky | 6-2,6-3 |
| ITF M15 Novomoskovsk | 2021/06/03 11:45 | Alexander Zgirovsky v Gabriel Donev | 6-2,3-6,10-8 |
| ITF M15 Novomoskovsk | 2021/05/31 13:45 | Alexander Zgirovsky v Piotr Pawlak | 6-3,6-1 |
| ITF M15 Novomoskovsk | 2021/05/31 06:15 | Alexander Zgirovsky v Dmitrii Vasilev | 6-1,6-1 |
| ITF M15 Novomoskovsk | 2021/05/30 06:15 | Alexander Zgirovsky v Inaki Cabrera Bello | 6-0,6-4 |
| ITF M15 Novomoskovsk | 2021/05/25 08:45 | Gabriel Donev v Alexander Zgirovsky | 6-4,6-2 |
| ITF M15 Novomoskovsk | 2021/05/24 12:00 | Olexiy Kolisnyk v Alexander Zgirovsky | 7-6,2-6,8-10 |
| ITF M15 Novomoskovsk | 2021/05/23 08:00 | Egor Matvievici v Alexander Zgirovsky | 1-6,3-6 |
| 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 | 2021/05/10 07:00 | Gabriel Roveri Sidney v Vladimir Korolev | 4-6,2-6 |