| TT Cup Ukraine | 2021/07/06 10:25 | Samvel Melkumian v Oleksandr Kostiuk | L | 0-3 |
| TT Cup Ukraine | 2021/06/28 00:45 | Oleksandr Kostiuk v Samvel Melkumian | W | 2-3 |
| TT Cup Ukraine | 2021/06/21 08:05 | Samvel Melkumian v Oleksandr Kostiuk | L | 0-3 |
| TT Cup (2021) | 2021/01/26 21:10 | Samvel Melkumian v Oleksandr Kostiuk | W | 3-1 |
| TT Cup Ukraine | 2021/01/26 18:15 | Oleksandr Kostiuk v Samvel Melkumian | L | 3-0 |
| TT Cup Ukraine | 2021/01/06 11:25 | Samvel Melkumian v Oleksandr Kostiuk | W | 3-2 |
| TT Cup Ukraine | 2020/12/19 16:40 | Samvel Melkumian v Oleksandr Kostiuk | L | 1-3 |
| TT Cup Ukraine | 2020/12/15 22:15 | Samvel Melkumian v Oleksandr Kostiuk | W | 3-2 |
| TT Cup Ukraine | 2021/08/11 01:35 | Samvel Melkumian v Serhii Kiilo | W | 3-2 |
| TT Cup Ukraine | 2021/08/11 01:05 | Sergey Matvienko v Samvel Melkumian | L | 3-2 |
| TT Cup Ukraine | 2021/08/10 23:05 | Ivan Fashchevskyi v Samvel Melkumian | W | 2-3 |
| TT Cup Ukraine | 2021/08/10 21:35 | Oleksandr Yarovoi v Samvel Melkumian | W | 1-3 |
| TT Cup Ukraine | 2021/08/10 20:35 | Serhii Kiilo v Samvel Melkumian | L | 3-1 |
| TT Cup Ukraine | 2021/08/10 01:05 | Samvel Melkumian v Oleksandr Yarovoi | L | 0-3 |
| TT Cup Ukraine | 2021/08/10 00:05 | Sergey Matvienko v Samvel Melkumian | L | 3-1 |
| TT Cup Ukraine | 2021/08/09 22:35 | Ivan Fashchevskyi v Samvel Melkumian | L | 3-2 |
| TT Cup Ukraine | 2021/08/11 12:10 | Oleksandr Kostiuk v Volodymyr Tuchkevych | W | 3-0 |
| TT Cup Ukraine | 2021/08/11 10:25 | Sergey Gilitukha v Oleksandr Kostiuk | L | 3-1 |
| TT Cup Ukraine | 2021/08/11 09:50 | Oleksandr Kostiuk v Roman Pinchuk | W | 3-1 |
| TT Cup Ukraine | 2021/08/11 07:30 | Oleksandr Kostiuk v Volodymyr Tuchkevych | W | 3-1 |
| TT Cup Ukraine | 2021/08/11 05:45 | Oleksandr Kostiuk v Andrey Tsikhotskiy | W | 3-0 |
| TT Cup Ukraine | 2021/08/10 12:10 | Oleksandr Kostiuk v Sergey Gilitukha | W | 3-1 |
| TT Cup (2021) | 2021/08/10 11:35 | Oleksandr Kostiuk v Sergey Gilitukha | W | 3-1 |
| TT Cup Ukraine | 2021/08/10 11:00 | Oleksandr Kostiuk v Volodymyr Tuchkevych | W | 3-1 |