| Ukraine Win Cup | 2021/09/07 12:15 | Kubrak, Serhii v Rubtsov, Sergey | W | 0-3 |
| Ukraine Win Cup | 2021/09/01 16:15 | Kubrak, Serhii v Rubtsov, Sergey | L | 3-1 |
| TT Cup | 2021/05/21 16:00 | Kubrak, Serhii v Rubtsov, Sergey | W | 2-3 |
| Ukraine Win Cup | 2021/04/13 14:15 | Kubrak, Serhii v Rubtsov, Sergey | W | 2-3 |
| Ukraine Win Cup | 2021/03/24 17:15 | Kubrak, Serhii v Rubtsov, Sergey | W | 0-3 |
| TT Cup | 2021/03/19 18:10 | Kubrak, Serhii v Rubtsov, Sergey | W | 0-3 |
| TT Cup | 2021/03/19 17:00 | Kubrak, Serhii v Rubtsov, Sergey | L | 3-0 |
| Ukraine Win Cup | 2021/03/17 14:15 | Kubrak, Serhii v Rubtsov, Sergey | W | 1-3 |
| Ukraine Win Cup | 2021/09/14 11:45 | Gulevskiy, Rodion v Rubtsov, Sergey | L | 3-1 |
| Ukraine Win Cup | 2021/09/12 11:00 | Rubtsov, Sergey v Stasevskyi, O. | W | 3-2 |
| Ukraine Win Cup | 2021/09/12 10:00 | Rubtsov, Sergey v Cherednichenko, P. | W | 3-2 |
| Ukraine Win Cup | 2021/09/12 08:30 | Rubtsov, Sergey v Gimadeev, Ruslan | W | 3-0 |
| Ukraine Win Cup | 2021/09/12 08:00 | Stasevskyi, O. v Rubtsov, Sergey | W | 2-3 |
| Ukraine Win Cup | 2021/09/12 07:00 | Cherednichenko, P. v Rubtsov, Sergey | W | 2-3 |
| Ukraine Win Cup | 2021/09/12 05:30 | Gimadeev, Ruslan v Rubtsov, Sergey | L | 3-0 |
| Ukraine Win Cup | 2021/09/08 17:45 | Rubtsov, Sergey v Bogdan Doroshenko | L | 1-3 |
| Ukraine Win Cup | 2021/09/14 12:45 | Kubrak, Serhii v Medvedev, Yuriy | L | 2-3 |
| Ukraine Win Cup | 2021/09/14 12:15 | Gulevskiy, Rodion v Kubrak, Serhii | W | 2-3 |
| TT Cup | 2021/09/13 20:05 | Kubrak, Serhii v Brezitskiy, Aleksandr | W | 3-2 |
| TT Cup | 2021/09/13 19:25 | Derevianko, Artem v Kubrak, Serhii | W | 0-3 |
| TT Cup | 2021/09/13 18:55 | Kubrak, Serhii v Tytyunnik, O. | W | 3-1 |
| TT Cup | 2021/09/13 17:45 | Kubrak, Serhii v Brezitskiy, Aleksandr | W | 3-1 |
| TT Cup | 2021/09/13 17:05 | Kubrak, Serhii v Pugach, Prokhor | W | 3-2 |
| TT Cup | 2021/09/10 17:05 | Oleksiy Shindel v Kubrak, Serhii | L | 3-1 |