| TT Cup (2022) | 2022/03/21 10:50 | Nazar Kovalchuk v Alexander Tkachenko | L | 3-2 |
| TT Cup Ukraine | 2021/12/23 13:00 | Nazar Kovalchuk v Alexander Tkachenko | L | 3-0 |
| TT Cup Ukraine | 2021/12/23 07:45 | Alexander Tkachenko v Nazar Kovalchuk | L | 1-3 |
| TT Cup Ukraine | 2021/12/22 11:50 | Nazar Kovalchuk v Alexander Tkachenko | W | 1-3 |
| TT Cup Ukraine | 2021/03/07 17:05 | Alexander Tkachenko v Nazar Kovalchuk | W | 3-1 |
| TT Cup Ukraine | 2021/03/06 17:05 | Alexander Tkachenko v Nazar Kovalchuk | L | 1-3 |
| TT Cup (2020) | 2020/11/12 12:25 | Alexander Tkachenko v Nazar Kovalchuk | L | 1-3 |
| TT Cup Ukraine | 2020/11/12 11:50 | Alexander Tkachenko v Nazar Kovalchuk | W | 3-0 |
| TT Cup (2022) | 2022/03/22 06:50 | Alexander Tkachenko v David Simonchuk | L | 2-3 |
| TT Cup (2022) | 2022/03/21 10:50 | Nazar Kovalchuk v Alexander Tkachenko | L | 3-2 |
| TT Cup (2022) | 2022/03/21 10:20 | Alexander Tkachenko v David Simonchuk | L | 0-3 |
| TT Cup (2022) | 2022/03/21 08:20 | Alexander Tkachenko v Volodymyr Plishylo | L | 0-3 |
| TT Cup (2022) | 2022/03/21 06:50 | Alexander Tkachenko v Anton Molochko | L | 0-3 |
| TT Cup Ukraine | 2022/02/23 12:25 | Andrii Baklykov v Alexander Tkachenko | W | 1-3 |
| TT Cup Ukraine | 2022/02/23 10:05 | Yuryi Shchepanskyi v Alexander Tkachenko | L | 3-2 |
| TT Cup Ukraine | 2022/02/23 09:30 | Alexander Tkachenko v Vladislav Kalugin | W | 3-2 |
| TT Cup (2022) | 2022/03/22 07:20 | Nazar Kovalchuk v Anton Molochko | L | 1-3 |
| TT Cup (2022) | 2022/03/21 11:50 | Nazar Kovalchuk v David Simonchuk | L | 2-3 |
| TT Cup (2022) | 2022/03/21 10:50 | Nazar Kovalchuk v Alexander Tkachenko | W | 3-2 |
| TT Cup (2022) | 2022/03/21 09:50 | Nazar Kovalchuk v Volodymyr Plishylo | L | 1-3 |
| TT Cup (2022) | 2022/03/21 08:50 | Nazar Kovalchuk v David Simonchuk | W | 3-1 |
| TT Cup (2022) | 2022/03/21 07:50 | Nazar Kovalchuk v Anton Molochko | L | 1-3 |
| TT Cup (2022) | 2022/03/18 17:50 | Nazar Kovalchuk v Vladislav Kalugin | W | 3-0 |
| TT Cup (2022) | 2022/03/18 17:20 | Nazar Kovalchuk v Vladislav Kalugin | W | 3-2 |