| TT Cup Ukraine | 2021/12/23 07:45 | Alexander Tkachenko v Nazar Kovalchuk | W | 1-3 |
| TT Cup Ukraine | 2021/12/22 11:50 | Nazar Kovalchuk v Alexander Tkachenko | L | 1-3 |
| TT Cup Ukraine | 2021/03/07 17:05 | Alexander Tkachenko v Nazar Kovalchuk | L | 3-1 |
| TT Cup Ukraine | 2021/03/06 17:05 | Alexander Tkachenko v Nazar Kovalchuk | W | 1-3 |
| TT Cup (2020) | 2020/11/12 12:25 | Alexander Tkachenko v Nazar Kovalchuk | W | 1-3 |
| TT Cup Ukraine | 2020/11/12 11:50 | Alexander Tkachenko v Nazar Kovalchuk | L | 3-0 |
| TT Cup Ukraine | 2020/11/11 08:20 | Nazar Kovalchuk v Alexander Tkachenko | L | 1-3 |
| TT Cup Ukraine | 2020/07/30 10:50 | Alexander Tkachenko v Nazar Kovalchuk | W | 0-3 |
| TT Cup Ukraine | 2021/12/23 11:50 | Andrii Baklykov v Nazar Kovalchuk | L | 3-2 |
| TT Cup Ukraine | 2021/12/23 09:30 | Volodymir Maksuta v Nazar Kovalchuk | W | 1-3 |
| TT Cup Ukraine | 2021/12/23 07:45 | Alexander Tkachenko v Nazar Kovalchuk | W | 1-3 |
| TT Cup Ukraine | 2021/12/23 06:35 | Anatolii Lievshin v Nazar Kovalchuk | W | 1-3 |
| TT Cup Ukraine | 2021/12/22 11:50 | Nazar Kovalchuk v Alexander Tkachenko | L | 1-3 |
| TT Cup Ukraine | 2021/12/22 10:40 | Anatolii Lievshin v Nazar Kovalchuk | L | 3-2 |
| TT Cup Ukraine | 2021/12/22 08:55 | Andrii Baklykov v Nazar Kovalchuk | L | 3-0 |
| TT Cup Ukraine | 2021/12/22 07:10 | Volodymir Maksuta v Nazar Kovalchuk | L | 3-1 |
| TT Cup Ukraine | 2021/12/23 11:15 | Alexander Tkachenko v Anatolii Lievshin | L | 2-3 |
| TT Cup Ukraine | 2021/12/23 10:05 | Alexander Tkachenko v Volodymir Maksuta | W | 3-0 |
| TT Cup Ukraine | 2021/12/23 08:55 | Alexander Tkachenko v Andrii Baklykov | W | 3-1 |
| TT Cup Ukraine | 2021/12/23 07:45 | Alexander Tkachenko v Nazar Kovalchuk | L | 1-3 |
| TT Cup Ukraine | 2021/12/22 12:25 | Volodymir Maksuta v Alexander Tkachenko | W | 1-3 |
| TT Cup Ukraine | 2021/12/22 11:50 | Nazar Kovalchuk v Alexander Tkachenko | W | 1-3 |
| TT Cup Ukraine | 2021/12/22 09:30 | Volodymir Maksuta v Alexander Tkachenko | L | 3-2 |
| TT Cup Ukraine | 2021/12/22 07:45 | Andrii Baklykov v Alexander Tkachenko | W | 2-3 |