| 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 | 2021/08/25 08:05 | Samvel Melkumian v Andrey Kaptanovsky | L | 2-3 |
| TT Cup Ukraine | 2021/08/25 06:55 | Samvel Melkumian v Illya Semeniuk | L | 2-3 |
| TT Cup Ukraine | 2021/08/24 19:45 | Samvel Melkumian v Igor Demchuk | W | 3-2 |
| TT Cup Ukraine | 2021/08/24 16:50 | Viktor Bosak v Samvel Melkumian | W | 2-3 |
| TT Cup Ukraine | 2021/08/24 16:15 | Samvel Melkumian v Igor Vatsyn | W | 3-0 |
| TT Cup Ukraine | 2021/08/24 15:05 | Volodymyr Tuchkevych v Samvel Melkumian | W | 2-3 |
| TT Cup Ukraine | 2021/08/24 13:55 | Samvel Melkumian v Igor Demchuk | W | 3-1 |
| TT Cup Ukraine | 2021/08/21 01:45 | Volodymyr Tuchkevych v Samvel Melkumian | W | 0-3 |
| TT Cup Ukraine | 2021/08/25 08:40 | Oleksandr Kostiuk v Illya Semeniuk | L | 2-3 |
| TT Cup Ukraine | 2021/08/25 07:30 | Roman Pinchuk v Oleksandr Kostiuk | W | 0-3 |
| TT Cup Ukraine | 2021/08/25 06:20 | Oleksandr Kostiuk v Andrey Kaptanovsky | L | 1-3 |
| TT Cup Ukraine | 2021/08/22 11:35 | Mykola Tovkach v Oleksandr Kostiuk | W | 1-3 |
| TT Cup Ukraine | 2021/08/22 11:00 | Oleksandr Kostiuk v Volodymyr Tuchkevych | W | 3-0 |
| TT Cup Ukraine | 2021/08/22 09:50 | Andrey Tsikhotskiy v Oleksandr Kostiuk | L | 3-1 |
| TT Cup Ukraine | 2021/08/22 08:05 | Mykola Tovkach v Oleksandr Kostiuk | L | 3-2 |
| TT Cup Ukraine | 2021/08/22 06:20 | Illya Semeniuk v Oleksandr Kostiuk | L | 3-0 |