| WTT Star Contender - Doha | 2021/03/06 17:00 | Deni Kozul v Tristan Flore | W | 3-2 |
| Challenger - Ochsenhausen | 2020/11/20 13:50 | Dauud Cheaib v Deni Kozul | W | 2-3 |
| Challenger - Ochsenhausen | 2020/11/20 13:05 | Deni Kozul v Evgueni Chtchetinine | W | 3-2 |
| Challenger - Ochsenhausen | 2020/11/20 09:30 | Deni Kozul v Liang Qiu | W | 3-1 |
| Challenger - Ochsenhausen | 2020/11/20 07:30 | Dauud Cheaib v Deni Kozul | W | 1-3 |
| Challenger - Ochsenhausen | 2020/11/19 11:30 | Sven Happek v Deni Kozul | W | 0-3 |
| Challenger - Ochsenhausen | 2020/11/19 09:30 | Florian Bluhm v Deni Kozul | W | 1-3 |
| Challenger - Ochsenhausen | 2020/11/18 14:10 | Deni Kozul v Carlos Ishida | W | 3-0 |
| Ukrajina - Win Cup | 2021/06/04 10:30 | Roman Derypaska v Lev Katsman | L | 3-2 |
| Ukrajina - Win Cup | 2021/06/04 08:30 | Lev Katsman v Valentyn Yunchyk | L | 0-3 |
| Russia Championship | 2021/04/17 14:30 | Maksim Grebnev v Lev Katsman | L | 3-2 |
| Russia Championship | 2021/04/16 16:30 | Aleksei Zhukov v Lev Katsman | L | 3-2 |
| Russia Team Championships | 2021/04/14 14:50 | Lev Katsman v Saadi Ismailov | W | 3-1 |
| Russia Team Championships | 2021/04/14 07:00 | Lev Katsman v Viacheslav Burov | W | 3-1 |
| Russia Team Championships | 2021/04/13 09:20 | Lev Katsman v Artur Atskanov | W | 3-0 |
| Oman Open - U21 - ženy | 2020/03/06 12:30 | Samuel Kulczycki v Lev Katsman | W | 1-4 |