| Challenger Ochsenhausen | 2021/12/02 10:50 | Dennis Klein v Dauud Cheaib | W | 3-0 |
| Challenger Ochsenhausen | 2021/12/02 08:10 | Liang Qiu v Dennis Klein | W | 2-3 |
| Challenger Ochsenhausen | 2021/12/01 12:50 | Sven Happek v Dennis Klein | W | 0-3 |
| Challenger Ochsenhausen | 2021/12/01 10:50 | Dennis Klein v Alexander Valuch | W | 3-1 |
| Challenger Ochsenhausen | 2021/12/01 08:50 | Dennis Klein v Josip Huzjak | W | 3-0 |
| Challenger Ochsenhausen | 2021/11/16 15:00 | Evgueni Chtchetinine v Dennis Klein | W | 1-3 |
| Challenger Ochsenhausen | 2021/11/16 14:15 | Dauud Cheaib v Dennis Klein | L | 3-0 |
| Challenger Ochsenhausen | 2021/11/16 10:00 | Adam Klajber v Dennis Klein | W | 0-3 |
| Challenger Ochsenhausen | 2021/12/02 11:30 | Liang Qiu v Tugay Yilmaz | L | 3-1 |
| Challenger Ochsenhausen | 2021/12/02 09:30 | Sven Happek v Tugay Yilmaz | L | 3-0 |
| Challenger Ochsenhausen | 2021/12/01 14:10 | Tugay Yilmaz v Alexander Valuch | L | 1-3 |
| Challenger Ochsenhausen | 2021/12/01 11:30 | Tugay Yilmaz v Josip Huzjak | L | 2-3 |
| Challenger Ochsenhausen | 2021/12/01 09:30 | Tugay Yilmaz v Miguel Chamorro | W | 3-1 |
| European Team Championships | 2021/09/29 11:30 | Joao Monteiro v Tugay Yilmaz | L | 3-1 |
| Qatar Open Women | 2018/12/04 17:01 | Jakub Dyjas v Tugay Yilmaz | L | 3-1 |