| TT Cup | 2022/02/09 10:15 | Kostiuk, Oleksandr v Demchuk, Igor | W | 2-3 |
| TT Cup | 2022/02/09 06:45 | Demchuk, Igor v Kostiuk, Oleksandr | L | 1-3 |
| TT Cup | 2022/01/18 12:35 | Kostiuk, Oleksandr v Demchuk, Igor | W | 2-3 |
| TT Cup | 2022/01/18 12:00 | Kostiuk, Oleksandr v Demchuk, Igor | L | 3-1 |
| TT Cup | 2022/01/17 10:50 | Kostiuk, Oleksandr v Demchuk, Igor | L | 3-1 |
| TT Cup | 2021/11/08 13:10 | Demchuk, Igor v Kostiuk, Oleksandr | L | 0-3 |
| TT Cup | 2021/11/08 09:40 | Kostiuk, Oleksandr v Demchuk, Igor | L | 3-2 |
| TT Cup | 2021/11/06 11:25 | Kostiuk, Oleksandr v Demchuk, Igor | L | 3-0 |
| TT Cup | 2021/10/27 06:20 | Kostiuk, Oleksandr v Demchuk, Igor | L | 3-0 |
| TT Cup | 2021/10/26 09:15 | Kostiuk, Oleksandr v Demchuk, Igor | L | 3-0 |
| TT Cup | 2021/10/26 05:45 | Demchuk, Igor v Kostiuk, Oleksandr | L | 0-3 |
| TT Cup | 2021/06/23 23:45 | Kostiuk, Oleksandr v Demchuk, Igor | W | 2-3 |
| TT Cup | 2021/06/23 20:45 | Demchuk, Igor v Kostiuk, Oleksandr | L | 0-3 |
| TT Cup | 2021/05/25 00:15 | Kostiuk, Oleksandr v Demchuk, Igor | W | 1-3 |