| TT Cup | 2021/01/17 08:45 | Tsybulin, Sergey v Boiko, Serhii | L | 3-1 |
| TT Cup | 2021/01/16 05:50 | Boiko, Serhii v Tsybulin, Sergey | L | 1-3 |
| TT Cup | 2021/01/08 00:05 | Tsybulin, Sergey v Boiko, Serhii | W | 1-3 |
| TT Cup | 2021/01/07 00:05 | Boiko, Serhii v Tsybulin, Sergey | L | 2-3 |
| TT Cup | 2021/01/03 06:25 | Tsybulin, Sergey v Boiko, Serhii | W | 0-3 |
| TT Cup | 2021/01/02 14:00 | Boiko, Serhii v Tsybulin, Sergey | L | 0-3 |
| TT Cup | 2020/12/27 09:20 | Tsybulin, Sergey v Boiko, Serhii | L | 3-1 |
| TT Cup | 2020/12/26 06:25 | Boiko, Serhii v Tsybulin, Sergey | L | 1-3 |
| TT Cup | 2021/02/13 11:40 | Pismenniy, Evgeniy v Boiko, Serhii | L | 3-2 |
| TT Cup | 2021/02/13 10:30 | Roman Cherevko v Boiko, Serhii | L | 3-2 |
| TT Cup | 2021/02/13 09:20 | Boiko, Serhii v Pismenniy, Evgeniy | L | 0-3 |
| TT Cup | 2021/02/13 08:10 | Boiko, Serhii v Anton Molochko | L | 1-3 |
| TT Cup | 2021/02/13 07:00 | Boiko, Serhii v Levadniy, Aleksandr | W | 3-1 |
| TT Cup | 2021/02/07 02:30 | Boiko, Serhii v Krutko, Aleksey | W | 3-2 |
| TT Cup | 2021/02/07 01:00 | Boiko, Serhii v Krutko, Aleksey | W | 3-2 |
| TT Cup | 2021/02/07 00:00 | Boiko, Serhii v Shkurupii, A. | L | 0-3 |
| TT Cup | 2021/02/13 12:50 | Tsybulin, Sergey v Roman Cherevko | L | 0-3 |
| Ukraine Win Cup | 2021/02/12 11:00 | Lev Kats v Tsybulin, Sergey | L | 3-1 |
| Ukraine Win Cup | 2021/02/12 10:00 | Malov, Oleksandr v Tsybulin, Sergey | W | 1-3 |
| Ukraine Win Cup | 2021/02/12 09:00 | Nazar Tretiak v Tsybulin, Sergey | L | 3-1 |
| Ukraine Win Cup | 2021/02/12 08:00 | Tsybulin, Sergey v Lev Kats | W | 3-1 |
| Ukraine Win Cup | 2021/02/12 07:00 | Tsybulin, Sergey v Malov, Oleksandr | L | 2-3 |
| Ukraine Win Cup | 2021/02/12 06:00 | Tsybulin, Sergey v Nazar Tretiak | L | 2-3 |
| TT Cup | 2021/02/11 12:10 | Mykyta Ruban v Tsybulin, Sergey | L | 3-0 |