| Czech TT Star Series | 2020/10/09 10:45 | Antonin Gavlas v Boguslav Koszyk | L | 3-0 |
| Czech TT Star Series | 2020/10/09 08:15 | Petr David v Boguslav Koszyk | L | 3-2 |
| Czech TT Star Series | 2020/10/09 06:35 | Horacio Cifuentes v Boguslav Koszyk | L | 3-1 |
| Czech TT Star Series | 2020/10/08 13:45 | Boguslav Koszyk v Michal Obeslo | L | 2-3 |
| Czech TT Star Series | 2020/10/08 11:45 | Boguslav Koszyk v Dmitrij Prokopcov | L | 1-3 |
| Czech TT Star Series | 2020/10/08 09:15 | Boguslav Koszyk v Andrei Putuntica | L | 1-3 |
| Czech TT Star Series | 2020/10/08 07:45 | Daniele Pinto v Boguslav Koszyk | W | 1-3 |
| Czech TT Star Series | 2020/10/06 11:45 | Boguslav Koszyk v Tomas Tregler | L | 0-3 |
| Challenger Ochsenhausen | 2020/03/05 17:58 | Konrad Kulpa v Daniel Bak | L | 3-0 |
| Challenger Ochsenhausen | 2020/02/23 15:40 | Piotr Chodorski v Daniel Bak | L | 3-0 |
| Challenger Ochsenhausen | 2020/02/06 17:40 | Michal Lysakowski v Daniel Bak | W | 0-3 |
| Challenger Ochsenhausen | 2019/11/08 17:20 | Jeongwoo Park v Daniel Bak | L | 2-0 |
| Challenger Ochsenhausen | 2019/11/08 16:24 | Marco Golla v Daniel Bak | W | 0-3 |
| Challenger Ochsenhausen | 2019/10/25 17:00 | Youngyin Li v Daniel Bak | L | 2-0 |
| Challenger Ochsenhausen | 2019/10/25 16:26 | Przemyslaw Walaszek v Daniel Bak | W | 0-3 |
| Challenger Ochsenhausen | 2019/09/26 17:39 | Patrik Hoinovski v Daniel Bak | L | 2-0 |