| TT Cup Ukraine | 2021/06/21 08:05 | Samvel Melkumian v Oleksandr Kostiuk | W | 0-3 |
| TT Cup (2021) | 2021/01/26 21:10 | Samvel Melkumian v Oleksandr Kostiuk | L | 3-1 |
| TT Cup Ukraine | 2021/01/26 18:15 | Oleksandr Kostiuk v Samvel Melkumian | W | 3-0 |
| TT Cup Ukraine | 2021/01/06 11:25 | Samvel Melkumian v Oleksandr Kostiuk | L | 3-2 |
| TT Cup Ukraine | 2020/12/19 16:40 | Samvel Melkumian v Oleksandr Kostiuk | W | 1-3 |
| TT Cup Ukraine | 2020/12/15 22:15 | Samvel Melkumian v Oleksandr Kostiuk | L | 3-2 |
| TT Cup Ukraine | 2020/12/12 18:25 | Samvel Melkumian v Oleksandr Kostiuk | W | 2-3 |
| TT Cup Ukraine | 2020/12/11 14:20 | Oleksandr Kostiuk v Samvel Melkumian | L | 2-3 |
| TT Cup Ukraine | 2021/06/27 23:45 | Oleksandr Kostiuk v Volodymyr Tuchkevych | W | 3-1 |
| TT Cup Ukraine | 2021/06/27 22:45 | Oleksandr Kostiuk v Roman Vashchuk | L | 1-3 |
| TT Cup Ukraine | 2021/06/27 21:45 | Oleksandr Kostiuk v Bogdan Stasiuk | L | 1-3 |
| TT Cup Ukraine | 2021/06/24 01:15 | Andrey Tsikhotskiy v Oleksandr Kostiuk | L | 3-2 |
| TT Cup Ukraine | 2021/06/24 00:15 | Sergey Gilitukha v Oleksandr Kostiuk | L | 3-0 |
| TT Cup Ukraine | 2021/06/23 23:45 | Oleksandr Kostiuk v Igor Demchuk | L | 2-3 |
| TT Cup Ukraine | 2021/06/23 22:45 | Andrey Tsikhotskiy v Oleksandr Kostiuk | L | 3-0 |
| TT Cup Ukraine | 2021/06/23 21:45 | Sergey Gilitukha v Oleksandr Kostiuk | L | 3-0 |
| TT Cup Ukraine | 2021/06/28 00:15 | Samvel Melkumian v Roman Vashchuk | L | 2-3 |
| TT Cup Ukraine | 2021/06/27 22:15 | Samvel Melkumian v Volodymyr Tuchkevych | W | 3-2 |
| TT Cup Ukraine | 2021/06/27 20:45 | Samvel Melkumian v Bogdan Stasiuk | W | 3-1 |
| TT Cup Ukraine | 2021/06/21 11:35 | Sergey Gilitukha v Samvel Melkumian | L | 3-0 |
| TT Cup Ukraine | 2021/06/21 10:25 | Samvel Melkumian v Andrey Tsikhotskiy | L | 2-3 |
| TT Cup Ukraine | 2021/06/21 09:15 | Samvel Melkumian v Bogdan Stasiuk | W | 3-2 |
| TT Cup Ukraine | 2021/06/21 08:05 | Samvel Melkumian v Oleksandr Kostiuk | L | 0-3 |
| TT Cup Ukraine | 2021/06/21 06:55 | Samvel Melkumian v Sergey Gilitukha | L | 1-3 |