| Challenger Ochsenhausen | 2021/03/23 15:40 | Dennis Klein v Fedor Kuzmin | W | 3-0 |
| Challenger Ochsenhausen | 2021/03/22 17:00 | Dennis Klein v Fedor Kuzmin | W | 3-2 |
| Challenger Ochsenhausen | 2021/02/09 09:20 | Fedor Kuzmin v Dennis Klein | W | 0-3 |
| Challenger Ochsenhausen | 2021/01/26 08:00 | Dennis Klein v Fedor Kuzmin | L | 1-3 |
| Challenger Ochsenhausen | 2021/05/10 17:20 | Dennis Klein v Carlo Rossi | L | 0-3 |
| Challenger Ochsenhausen | 2021/05/10 11:50 | Dennis Klein v Michael Engelhardt | W | 3-2 |
| Challenger Ochsenhausen | 2021/05/10 09:10 | Dennis Klein v Juri Grauer | W | 3-0 |
| Challenger Ochsenhausen | 2021/05/10 06:30 | Dennis Klein v Florian Bluhm | W | 3-1 |
| Challenger Ochsenhausen | 2021/04/20 14:40 | Francisco Sanchi v Dennis Klein | L | 3-2 |
| Challenger Ochsenhausen | 2021/04/20 13:15 | Dennis Klein v Dauud Cheaib | W | 3-2 |
| Challenger Ochsenhausen | 2021/04/20 10:20 | Dennis Klein v Jiri Martinko | L | 1-3 |
| Challenger Ochsenhausen | 2021/04/20 07:00 | Dennis Klein v Francisco Sanchi | W | 3-1 |
| Challenger Ochsenhausen | 2021/05/10 16:40 | Fedor Kuzmin v Samuel Amann | W | 3-0 |
| Challenger Ochsenhausen | 2021/05/10 14:00 | Fedor Kuzmin v Josip Huzjak | L | 0-3 |
| Challenger Ochsenhausen | 2021/05/10 11:10 | Fedor Kuzmin v Florian Bluhm | L | 0-3 |
| Challenger Ochsenhausen | 2021/05/10 08:30 | Carlo Rossi v Fedor Kuzmin | W | 0-3 |
| Russia Championship | 2021/04/15 09:55 | Fedor Kuzmin v Aleksey Kaulik | L | 1-3 |
| Challenger Ochsenhausen | 2021/04/02 07:50 | Fedor Kuzmin v Jiri Martinko | L | 0-3 |
| Challenger Ochsenhausen | 2021/04/01 11:50 | Fedor Kuzmin v Dillon Chambers | W | 3-2 |
| Challenger Ochsenhausen | 2021/04/01 08:30 | Fedor Kuzmin v Dauud Cheaib | W | 3-2 |