| Challenger Ochsenhausen | 2021/06/17 10:30 | Sven Happek v Miguel Chamorro | L | 2-3 |
| Challenger Ochsenhausen | 2021/02/25 09:30 | Sven Happek v Miguel Chamorro | L | 2-3 |
| Challenger Ochsenhausen | 2021/02/12 08:10 | Sven Happek v Miguel Chamorro | L | 1-3 |
| Challenger Ochsenhausen | 2020/10/08 10:30 | Sven Happek v Miguel Chamorro | W | 3-2 |
| Challenger Ochsenhausen | 2020/07/03 10:30 | Miguel Chamorro v Sven Happek | L | 3-2 |
| Challenger Ochsenhausen | 2020/06/24 08:40 | Sven Happek v Miguel Chamorro | L | 1-4 |
| Challenger Ochsenhausen | 2020/06/12 08:40 | Sven Happek v Miguel Chamorro | L | 1-4 |
| Challenger Ochsenhausen | 2020/05/22 08:40 | Miguel Chamorro v Sven Happek | W | 3-4 |
| Challenger Ochsenhausen | 2021/07/16 11:40 | Sven Happek v Evgueni Chtchetinine | L | 1-3 |
| Challenger Ochsenhausen | 2021/07/16 10:05 | Andrei Putuntica v Sven Happek | L | 3-0 |
| Challenger Ochsenhausen | 2021/07/16 09:10 | Sven Happek v Andrei Putuntica | L | 0-3 |
| Challenger Ochsenhausen | 2021/07/16 07:10 | Sven Happek v Alexander Valuch | L | 1-3 |
| Challenger Ochsenhausen | 2021/07/15 10:30 | Sven Happek v Evgueni Chtchetinine | L | 2-3 |
| Challenger Ochsenhausen | 2021/07/14 11:50 | Sven Happek v Josip Huzjak | W | 3-1 |
| Challenger Ochsenhausen | 2021/07/14 09:10 | Sven Happek v Dauud Cheaib | L | 2-3 |
| Challenger Ochsenhausen | 2021/07/14 06:30 | Sven Happek v Dennis Klein | W | 3-2 |
| Challenger Ochsenhausen | 2021/06/18 08:30 | Miguel Chamorro v Christopher Ligocki | W | 3-0 |
| Challenger Ochsenhausen | 2021/06/18 06:30 | Samuel Amann v Miguel Chamorro | W | 0-3 |
| Challenger Ochsenhausen | 2021/06/17 10:30 | Sven Happek v Miguel Chamorro | W | 2-3 |
| Challenger Ochsenhausen | 2021/06/17 08:30 | Henning Zeptner v Miguel Chamorro | L | 3-2 |
| Challenger Ochsenhausen | 2021/06/16 13:10 | Miguel Chamorro v Dauud Cheaib | L | 0-3 |
| Challenger Ochsenhausen | 2021/06/16 10:30 | Miguel Chamorro v Fedor Kuzmin | L | 2-3 |
| Challenger Ochsenhausen | 2021/06/16 08:30 | Miguel Chamorro v Harmeet Desai | L | 1-3 |
| Challenger Ochsenhausen | 2021/06/11 12:50 | Andrey Semenov v Miguel Chamorro | L | 3-0 |