| TT Cup | 2022/02/17 12:00 | Kostiuk, Oleksandr v Roman Vashchuk | W | 1-3 |
| TT Cup | 2022/02/04 10:15 | Kostiuk, Oleksandr v Roman Vashchuk | W | 2-3 |
| TT Cup | 2022/02/04 06:45 | Roman Vashchuk v Kostiuk, Oleksandr | W | 3-1 |
| TT Cup | 2022/01/29 00:15 | Roman Vashchuk v Kostiuk, Oleksandr | L | 2-3 |
| TT Cup | 2022/01/18 10:50 | Roman Vashchuk v Kostiuk, Oleksandr | W | 3-1 |
| TT Cup | 2022/01/17 13:45 | Kostiuk, Oleksandr v Roman Vashchuk | W | 0-3 |
| TT Cup | 2022/01/17 13:10 | Kostiuk, Oleksandr v Roman Vashchuk | W | 0-3 |
| TT Cup | 2022/01/17 06:45 | Kostiuk, Oleksandr v Roman Vashchuk | L | 3-1 |
| TT Cup | 2022/01/15 22:45 | Kostiuk, Oleksandr v Roman Vashchuk | W | 0-3 |
| TT Cup | 2022/01/15 17:15 | Roman Vashchuk v Kostiuk, Oleksandr | L | 2-3 |
| TT Cup | 2022/01/03 10:15 | Kostiuk, Oleksandr v Roman Vashchuk | L | 3-1 |
| TT Cup | 2022/01/03 06:45 | Roman Vashchuk v Kostiuk, Oleksandr | W | 3-0 |
| TT Cup | 2021/12/28 20:45 | Roman Vashchuk v Kostiuk, Oleksandr | L | 2-3 |
| TT Cup | 2021/12/28 17:15 | Kostiuk, Oleksandr v Roman Vashchuk | L | 3-0 |
| TT Cup | 2021/12/27 17:50 | Roman Vashchuk v Kostiuk, Oleksandr | W | 3-0 |
| TT Cup | 2021/12/27 14:20 | Kostiuk, Oleksandr v Roman Vashchuk | L | 3-2 |
| TT Cup | 2021/12/21 12:00 | Kostiuk, Oleksandr v Roman Vashchuk | L | 3-0 |
| TT Cup | 2021/12/21 09:05 | Kostiuk, Oleksandr v Roman Vashchuk | W | 1-3 |
| TT Cup | 2021/12/04 11:25 | Roman Vashchuk v Kostiuk, Oleksandr | L | 1-3 |
| TT Cup | 2021/12/04 07:20 | Roman Vashchuk v Kostiuk, Oleksandr | L | 0-3 |
| TT Cup | 2021/11/26 22:45 | Kostiuk, Oleksandr v Roman Vashchuk | W | 0-3 |
| TT Cup | 2021/11/08 12:35 | Kostiuk, Oleksandr v Roman Vashchuk | L | 3-2 |
| TT Cup | 2021/11/08 08:30 | Kostiuk, Oleksandr v Roman Vashchuk | W | 0-3 |
| TT Cup | 2021/11/06 07:55 | Kostiuk, Oleksandr v Roman Vashchuk | L | 3-2 |
| TT Cup | 2021/10/27 08:40 | Kostiuk, Oleksandr v Roman Vashchuk | L | 3-1 |
| TT Cup | 2021/10/26 11:00 | Roman Vashchuk v Kostiuk, Oleksandr | L | 0-3 |
| TT Cup | 2021/10/26 08:05 | Roman Vashchuk v Kostiuk, Oleksandr | L | 2-3 |
| TT Cup | 2021/10/25 09:15 | Roman Vashchuk v Kostiuk, Oleksandr | W | 3-1 |
| TT Cup | 2021/10/25 05:45 | Kostiuk, Oleksandr v Roman Vashchuk | L | 3-2 |
| TT Cup | 2021/07/10 11:00 | Roman Vashchuk v Kostiuk, Oleksandr | L | 2-3 |