| Olympic Qualification | 2021/04/23 10:40 | Aliaksandr Khanin v Samuel Kulczycki | W | 3-4 |
| Olympic Qualification | 2021/04/22 15:00 | Lubomir Pistej v Samuel Kulczycki | W | 0-4 |
| Olympic Qualification | 2021/04/21 19:00 | Luka Mladenovic v Samuel Kulczycki | W | 3-4 |
| Olympic Qualification | 2021/04/21 14:00 | Niagol Stoyanov v Samuel Kulczycki | L | 4-1 |
| Olympic Qualification | 2021/03/14 08:30 | Samuel Kulczycki v Adam Szudi | L | 2-4 |
| Oman Open - női U21 | 2020/03/12 16:20 | Samuel Kulczycki v Raegan Albuquerque | W | 2-0 |
| Polish Open | 2020/03/11 17:00 | Alexandru Manole v Samuel Kulczycki | W | 1-3 |
| Oman Open - női U21 | 2020/03/06 12:30 | Samuel Kulczycki v Lev Katsman | L | 1-4 |
| Olympic Qualification | 2021/04/23 11:40 | Cedric Nuytinck v Lei Kou | W | 0-4 |
| Olympic Qualification | 2021/03/16 14:30 | Kirill Skachkov v Lei Kou | L | 4-1 |
| Olympic Qualification | 2021/03/16 07:00 | Lubomir Jancarik v Lei Kou | L | 4-0 |
| Olympic Qualification | 2021/03/15 12:00 | Lei Kou v Niagol Stoyanov | W | 4-1 |
| Olympic Qualification | 2021/03/15 07:00 | Lei Kou v Marcelo Aguirre | W | 4-2 |
| WTT Star Contender Doha | 2021/03/07 08:45 | Daeseong Cho v Lei Kou | L | 3-2 |
| WTT Contender Doha | 2021/03/01 09:00 | Masaki Yoshida v Lei Kou | L | 3-2 |
| Challenger Ochsenhausen | 2021/01/22 17:20 | Piotr Michalski v Lei Kou | W | 0-3 |