| TT Cup | 2022/05/04 07:05 | Tsybulin, Sergey v Kovalchuk, Nazar | W | 3-0 |
| TT Cup | 2022/04/30 14:35 | Tsybulin, Sergey v Kovalchuk, Nazar | L | 2-3 |
| TT Cup | 2022/04/28 16:50 | Kovalchuk, Nazar v Tsybulin, Sergey | L | 3-0 |
| TT Cup | 2022/04/28 14:20 | Tsybulin, Sergey v Kovalchuk, Nazar | W | 3-2 |
| TT Cup | 2022/04/27 12:20 | Kovalchuk, Nazar v Tsybulin, Sergey | W | 2-3 |
| TT Cup | 2022/04/24 05:50 | Kovalchuk, Nazar v Tsybulin, Sergey | L | 3-1 |
| TT Cup | 2022/04/23 08:20 | Kovalchuk, Nazar v Tsybulin, Sergey | W | 2-3 |
| TT Cup | 2022/03/26 15:50 | Kovalchuk, Nazar v Tsybulin, Sergey | L | 3-0 |
| TT Cup | 2022/03/25 12:50 | Kovalchuk, Nazar v Tsybulin, Sergey | L | 3-2 |
| TT Cup | 2021/10/27 08:20 | Kovalchuk, Nazar v Tsybulin, Sergey | L | 3-2 |
| TT Cup | 2021/10/13 11:50 | Kovalchuk, Nazar v Tsybulin, Sergey | L | 3-0 |
| TT Cup | 2021/04/07 23:35 | Kovalchuk, Nazar v Tsybulin, Sergey | L | 3-2 |
| TT Cup | 2021/03/18 08:10 | Tsybulin, Sergey v Kovalchuk, Nazar | W | 3-0 |
| TT Cup | 2021/03/17 07:40 | Tsybulin, Sergey v Kovalchuk, Nazar | W | 3-0 |
| TT Cup | 2021/03/11 08:10 | Tsybulin, Sergey v Kovalchuk, Nazar | L | 2-3 |
| TT Cup | 2021/03/10 08:10 | Kovalchuk, Nazar v Tsybulin, Sergey | L | 3-0 |
| TT Cup | 2021/03/04 08:45 | Tsybulin, Sergey v Kovalchuk, Nazar | L | 1-3 |
| TT Cup | 2021/03/03 10:30 | Kovalchuk, Nazar v Tsybulin, Sergey | L | 3-1 |
| TT Cup | 2020/12/11 03:05 | Kovalchuk, Nazar v Tsybulin, Sergey | L | 3-0 |
| TT Cup | 2020/12/11 00:05 | Tsybulin, Sergey v Kovalchuk, Nazar | L | 1-3 |
| TT Cup | 2020/12/09 23:35 | Tsybulin, Sergey v Kovalchuk, Nazar | W | 3-2 |
| TT Cup | 2020/09/27 11:15 | Tsybulin, Sergey v Kovalchuk, Nazar | W | 3-1 |
| TT Cup | 2020/09/26 11:50 | Tsybulin, Sergey v Kovalchuk, Nazar | L | 1-3 |
| TT Cup | 2020/09/17 04:50 | Kovalchuk, Nazar v Tsybulin, Sergey | L | 3-2 |
| TT Cup | 2020/09/16 04:50 | Kovalchuk, Nazar v Tsybulin, Sergey | W | 2-3 |
| TT Cup | 2020/08/14 01:05 | Tsybulin, Sergey v Kovalchuk, Nazar | W | 3-1 |
| TT Cup | 2020/08/13 22:05 | Tsybulin, Sergey v Kovalchuk, Nazar | L | 1-3 |
| TT Cup | 2020/08/12 23:35 | Kovalchuk, Nazar v Tsybulin, Sergey | W | 0-3 |
| TT Cup | 2020/08/12 20:35 | Kovalchuk, Nazar v Tsybulin, Sergey | L | 3-0 |
| TT Cup | 2020/06/30 15:25 | Tsybulin, Sergey v Kovalchuk, Nazar | W | 3-2 |