| TT Cup | 2021/03/11 12:15 | Krutko, Aleksey v Kovalchuk, Nazar | W | 2-3 |
| TT Cup | 2021/03/10 14:00 | Kovalchuk, Nazar v Krutko, Aleksey | L | 1-3 |
| TT Cup | 2021/03/04 13:25 | Kovalchuk, Nazar v Krutko, Aleksey | L | 1-3 |
| TT Cup | 2021/03/04 05:50 | Krutko, Aleksey v Kovalchuk, Nazar | W | 1-3 |
| TT Cup | 2021/03/03 06:25 | Kovalchuk, Nazar v Krutko, Aleksey | L | 2-3 |
| TT Cup | 2021/02/06 21:00 | Krutko, Aleksey v Kovalchuk, Nazar | W | 2-3 |
| TT Cup | 2021/02/06 00:50 | Kovalchuk, Nazar v Krutko, Aleksey | L | 2-3 |
| Ukraine Win Cup | 2020/12/25 17:30 | Krutko, Aleksey v Kovalchuk, Nazar | L | 3-0 |
| TT Cup | 2021/04/07 23:35 | Kovalchuk, Nazar v Tsybulin, Sergey | W | 3-2 |
| TT Cup | 2021/04/07 22:35 | Kovalchuk, Nazar v Levadniy, Aleksandr | W | 3-1 |
| TT Cup | 2021/04/07 21:35 | Kovalchuk, Nazar v Shkurupii, A. | L | 1-3 |
| TT Cup | 2021/04/06 11:40 | Kovalchuk, Nazar v Plishilo, Volodymyr | W | 3-0 |
| TT Cup | 2021/04/06 11:05 | Danilyuk, Nazar v Kovalchuk, Nazar | L | 3-2 |
| TT Cup | 2021/04/06 08:45 | Gordiy, Andrey v Kovalchuk, Nazar | W | 2-3 |
| TT Cup | 2021/04/06 07:00 | Verbyany, Vasily v Kovalchuk, Nazar | L | 3-1 |
| TT Cup | 2021/04/06 05:50 | Plishilo, Volodymyr v Kovalchuk, Nazar | W | 2-3 |
| TT Cup | 2021/04/08 00:05 | Krutko, Aleksey v Levadniy, Aleksandr | L | 2-3 |
| TT Cup | 2021/04/07 22:05 | Krutko, Aleksey v Tsybulin, Sergey | W | 3-1 |
| TT Cup | 2021/04/07 20:35 | Krutko, Aleksey v Shkurupii, A. | L | 2-3 |
| TT Cup | 2021/04/01 11:50 | Krutko, Aleksey v Boiko, Serhii | L | 2-3 |
| TT Cup | 2021/04/01 10:05 | Krutko, Aleksey v Lev Kats | W | 3-2 |
| TT Cup | 2021/04/01 08:20 | Krutko, Aleksey v Levadniy, Aleksandr | L | 1-3 |
| TT Cup | 2021/04/01 06:35 | Krutko, Aleksey v Tsybulin, Sergey | W | 3-2 |
| TT Cup | 2021/04/01 04:50 | Krutko, Aleksey v Shkurupii, A. | W | 3-0 |