| TT Cup | 2021/05/12 08:20 | Lev Kats v Boiko, Serhii | W | 1-3 |
| TT Cup | 2021/05/02 10:05 | Boiko, Serhii v Lev Kats | L | 1-3 |
| TT Cup | 2021/05/01 12:25 | Boiko, Serhii v Lev Kats | L | 2-3 |
| TT Cup | 2021/04/11 05:25 | Lev Kats v Boiko, Serhii | L | 3-0 |
| TT Cup | 2021/04/10 13:00 | Lev Kats v Boiko, Serhii | L | 3-0 |
| TT Cup | 2021/04/01 07:45 | Boiko, Serhii v Lev Kats | L | 0-3 |
| TT Cup | 2021/03/31 11:50 | Boiko, Serhii v Lev Kats | L | 1-3 |
| TT Cup | 2021/01/14 15:15 | Lev Kats v Boiko, Serhii | L | 3-2 |
| TT Cup | 2021/05/13 04:50 | Boiko, Serhii v Shkurupii, A. | L | 0-3 |
| TT Cup | 2021/05/12 13:00 | Boiko, Serhii v Shkurupii, A. | W | 3-1 |
| TT Cup | 2021/05/12 10:40 | Tsybulin, Sergey v Boiko, Serhii | W | 1-3 |
| TT Cup | 2021/05/12 08:20 | Lev Kats v Boiko, Serhii | W | 1-3 |
| TT Cup | 2021/05/12 07:10 | Boiko, Serhii v Krutko, Aleksey | W | 3-1 |
| TT Cup | 2021/05/12 06:00 | Levadniy, Aleksandr v Boiko, Serhii | W | 1-3 |
| TT Cup | 2021/05/09 14:45 | Gogenko, Sergiy v Boiko, Serhii | L | 3-0 |
| TT Cup | 2021/05/09 11:50 | Krutko, Aleksey v Boiko, Serhii | W | 0-3 |
| TT Cup | 2021/05/13 05:25 | Krutko, Aleksey v Lev Kats | L | 3-2 |
| TT Cup | 2021/05/12 11:50 | Lev Kats v Tsybulin, Sergey | W | 3-1 |
| TT Cup | 2021/05/12 10:05 | Lev Kats v Levadniy, Aleksandr | W | 3-1 |
| TT Cup | 2021/05/12 08:20 | Lev Kats v Boiko, Serhii | L | 1-3 |
| TT Cup | 2021/05/12 06:35 | Lev Kats v Shkurupii, A. | W | 3-1 |
| TT Cup | 2021/05/12 04:50 | Lev Kats v Krutko, Aleksey | W | 3-1 |
| Ukraine Win Cup | 2021/05/04 10:00 | Lev Kats v Horbanenko, Oleksii | L | 0-3 |
| Ukraine Win Cup | 2021/05/04 09:30 | Kibka, Evgenii v Lev Kats | W | 1-3 |