| Ukraine Win Cup | 2021/10/04 17:00 | Konstantyn Kirsanov v Nazar Kovalchuk | W | 0-3 |
| Ukraine Win Cup | 2021/05/09 09:00 | Konstantyn Kirsanov v Nazar Kovalchuk | W | 2-3 |
| Ukraine Win Cup | 2021/05/09 06:00 | Nazar Kovalchuk v Konstantyn Kirsanov | L | 0-3 |
| Ukraine Win Cup | 2021/05/08 08:30 | Nazar Kovalchuk v Konstantyn Kirsanov | W | 3-2 |
| Ukraine Win Cup | 2021/05/08 05:30 | Konstantyn Kirsanov v Nazar Kovalchuk | W | 2-3 |
| Ukraine Win Cup | 2021/05/05 09:30 | Nazar Kovalchuk v Konstantyn Kirsanov | L | 2-3 |
| Ukraine Win Cup | 2021/05/05 06:30 | Konstantyn Kirsanov v Nazar Kovalchuk | L | 3-2 |
| Ukraine Win Cup | 2021/05/03 17:00 | Konstantyn Kirsanov v Nazar Kovalchuk | W | 0-3 |
| Ukraine Win Cup | 2021/10/15 12:00 | Andrii Fedorchenko v Nazar Kovalchuk | W | 2-3 |
| TT Cup Ukraine | 2021/10/14 11:15 | Nazar Kovalchuk v Denys Shcherbak | W | 3-1 |
| TT Cup Ukraine | 2021/10/14 08:20 | Oleksandr Levadniy v Nazar Kovalchuk | L | 3-2 |
| TT Cup Ukraine | 2021/10/14 07:45 | Nazar Kovalchuk v Andrii Baklykov | W | 3-1 |
| TT Cup Ukraine | 2021/10/14 06:35 | Aleksey Krutko v Nazar Kovalchuk | W | 0-3 |
| TT Cup Ukraine | 2021/10/14 05:25 | Nazar Kovalchuk v Denys Shcherbak | W | 3-1 |
| TT Cup Ukraine | 2021/10/13 11:50 | Nazar Kovalchuk v Serhii Tsybulin | W | 3-0 |
| TT Cup Ukraine | 2021/10/13 10:05 | Nazar Kovalchuk v Denys Shcherbak | L | 2-3 |
| Ukraine Win Cup | 2021/10/15 12:00 | Konstantyn Kirsanov v Roman Derypaska | L | 0-3 |
| Ukraine Win Cup | 2021/10/12 09:00 | Konstantyn Kirsanov v Nikolay Kornienko | L | 1-3 |
| Ukraine Win Cup | 2021/10/12 08:30 | Konstantyn Kirsanov v Vadim Griban | L | 1-3 |
| Ukraine Win Cup | 2021/10/12 07:30 | Konstantyn Kirsanov v Mykola Halynskyi | L | 0-3 |
| Ukraine Win Cup | 2021/10/12 06:30 | Vadim Griban v Konstantyn Kirsanov | L | 3-0 |
| Ukraine Win Cup | 2021/10/12 06:00 | Nikolay Kornienko v Konstantyn Kirsanov | L | 3-1 |
| Ukraine Win Cup | 2021/10/12 05:00 | Mykola Halynskyi v Konstantyn Kirsanov | W | 2-3 |
| Ukraine Win Cup | 2021/10/11 10:30 | Konstantyn Kirsanov v Ilya Kutniy | W | 3-2 |