Round: 1
| Challenger Ochsenhausen | 2021/03/22 09:50 | Andrey Semenov v Evgueni Chtchetinine | W | 1-3 |
| Challenger Ochsenhausen | 2021/04/12 10:30 | Evgueni Chtchetinine v Miguel Chamorro | W | 3-1 |
| Challenger Ochsenhausen | 2021/04/12 08:30 | Evgueni Chtchetinine v Josip Huzjak | W | 3-1 |
| Challenger Ochsenhausen | 2021/04/09 09:10 | Carlos Muhlbach v Evgueni Chtchetinine | L | 3-0 |
| Challenger Ochsenhausen | 2021/04/09 07:10 | Dauud Cheaib v Evgueni Chtchetinine | L | 3-0 |
| Challenger Ochsenhausen | 2021/04/08 11:50 | Miguel Chamorro v Evgueni Chtchetinine | W | 0-3 |
| Challenger Ochsenhausen | 2021/04/08 09:10 | Evgueni Chtchetinine v Dennis Klein | W | 3-1 |
| Challenger Ochsenhausen | 2021/04/08 06:30 | Evgueni Chtchetinine v Dimitrije Levajac | L | 2-3 |
| Challenger Ochsenhausen | 2021/04/07 11:10 | Evgueni Chtchetinine v Dillon Chambers | W | 3-0 |
| Challenger Ochsenhausen | 2021/04/12 09:50 | Dauud Cheaib v Andrey Semenov | L | 3-0 |
| Challenger Ochsenhausen | 2021/04/12 07:10 | Dennis Klein v Andrey Semenov | W | 1-3 |
| Challenger Ochsenhausen | 2021/03/23 12:00 | Andrey Semenov v Florian Bluhm | L | 0-3 |
| Challenger Ochsenhausen | 2021/03/23 08:40 | Andrey Semenov v Dennis Klein | L | 1-3 |
| Challenger Ochsenhausen | 2021/03/22 19:40 | Andrey Semenov v Miguel Chamorro | W | 3-1 |
| Challenger Ochsenhausen | 2021/03/22 18:20 | Andrey Semenov v Francisco Sanchi | W | 3-2 |
| Challenger Ochsenhausen | 2021/03/22 12:50 | Andrey Semenov v Peter Hribar | W | 3-0 |
| Challenger Ochsenhausen | 2021/03/22 09:50 | Andrey Semenov v Evgueni Chtchetinine | L | 1-3 |