| Challenger Ochsenhausen | 2019/09/23 16:40 | Carlo Rossi v Sven Happek | L | 3-2 |
| Challenger Ochsenhausen | 2021/09/30 08:30 | Sven Happek v Evgueni Chtchetinine | W | 3-2 |
| Challenger Ochsenhausen | 2021/09/29 11:50 | Sven Happek v Tal Israeli | W | 3-2 |
| Challenger Ochsenhausen | 2021/09/29 09:10 | Sven Happek v Miguel Vilchez | L | 0-3 |
| Challenger Ochsenhausen | 2021/09/29 06:30 | Sven Happek v Liang Qiu | L | 0-3 |
| 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 | 2021/09/30 09:10 | Carlo Rossi v Miguel Chamorro | W | 3-1 |
| Challenger Ochsenhausen | 2021/09/30 06:30 | Carlo Rossi v Dauud Cheaib | L | 0-3 |
| Challenger Ochsenhausen | 2021/09/29 11:10 | Carlo Rossi v Liang Qiu | L | 1-3 |
| Challenger Ochsenhausen | 2021/09/29 08:30 | Evgueni Chtchetinine v Carlo Rossi | W | 2-3 |
| Czech Open | 2021/08/23 14:20 | Andreas Levenko v Carlo Rossi | L | 4-0 |
| Challenger Ochsenhausen | 2021/05/11 14:00 | Carlo Rossi v Josip Huzjak | W | 3-1 |
| Challenger Ochsenhausen | 2021/05/11 12:35 | Carlo Rossi v Dennis Klein | L | 2-3 |
| Challenger Ochsenhausen | 2021/05/11 10:20 | Michael Engelhardt v Carlo Rossi | W | 0-3 |