| TT Cup | 2020/09/16 06:35 | Kovalchuk, Nazar v Oleskevych, Olexander | W | 3-1 |
| TT Cup | 2020/09/03 11:25 | Kovalchuk, Nazar v Oleskevych, Olexander | L | 1-3 |
| TT Cup | 2020/09/03 08:30 | Oleskevych, Olexander v Kovalchuk, Nazar | W | 2-3 |
| TT Cup | 2020/09/02 09:05 | Oleskevych, Olexander v Kovalchuk, Nazar | W | 0-3 |
| Ukraine Win Cup | 2020/09/01 15:30 | Oleskevych, Olexander v Kovalchuk, Nazar | L | 3-2 |
| Ukraine Win Cup | 2020/09/01 12:30 | Kovalchuk, Nazar v Oleskevych, Olexander | L | 1-3 |
| TT Cup | 2020/08/30 04:50 | Kovalchuk, Nazar v Oleskevych, Olexander | W | 3-2 |
| TT Cup | 2020/08/29 13:00 | Kovalchuk, Nazar v Oleskevych, Olexander | W | 3-2 |
| TT Cup | 2020/09/17 04:50 | Kovalchuk, Nazar v Tsybulin, Sergey | W | 3-2 |
| TT Cup | 2020/09/16 11:50 | Kovalchuk, Nazar v Krutko, Aleksey | L | 1-3 |
| TT Cup | 2020/09/16 10:05 | Kovalchuk, Nazar v Didukh, Viktor | L | 0-3 |
| TT Cup | 2020/09/16 08:20 | Kovalchuk, Nazar v Boiko, Serhii | L | 0-3 |
| TT Cup | 2020/09/16 06:35 | Kovalchuk, Nazar v Oleskevych, Olexander | W | 3-1 |
| TT Cup | 2020/09/16 04:50 | Kovalchuk, Nazar v Tsybulin, Sergey | L | 2-3 |
| TT Cup | 2020/09/14 11:05 | Danilyuk, Nazar v Kovalchuk, Nazar | L | 3-0 |
| TT Cup | 2020/09/14 08:45 | Verbyany, Vasily v Kovalchuk, Nazar | L | 3-0 |
| TT Cup | 2020/09/17 05:25 | Boiko, Serhii v Oleskevych, Olexander | L | 3-2 |
| TT Cup | 2020/09/16 13:00 | Boiko, Serhii v Oleskevych, Olexander | L | 3-0 |
| TT Cup | 2020/09/16 11:15 | Oleskevych, Olexander v Tsybulin, Sergey | L | 2-3 |
| TT Cup | 2020/09/16 08:55 | Didukh, Viktor v Oleskevych, Olexander | L | 3-1 |
| TT Cup | 2020/09/16 06:35 | Kovalchuk, Nazar v Oleskevych, Olexander | L | 3-1 |
| TT Cup | 2020/09/16 05:25 | Krutko, Aleksey v Oleskevych, Olexander | W | 1-3 |
| TT Cup | 2020/09/10 13:00 | Krutko, Aleksey v Oleskevych, Olexander | L | 3-0 |
| TT Cup | 2020/09/10 11:15 | Oleskevych, Olexander v Yevhen Masko | L | 2-3 |