| Challenger Ochsenhausen | 2021/01/27 13:30 | Dennis Klein v Liang Qiu | L | 2-3 |
| Challenger Ochsenhausen | 2021/01/25 12:50 | Liang Qiu v Dennis Klein | W | 1-3 |
| Challenger Ochsenhausen | 2021/02/22 10:10 | Felix Wetzel v Dennis Klein | W | 1-3 |
| Challenger Ochsenhausen | 2021/02/22 08:10 | Dennis Klein v Florian Bluhm | W | 3-2 |
| Challenger Ochsenhausen | 2021/02/16 13:40 | Dennis Klein v Eduardo Gonzales | W | 3-2 |
| Challenger Series TT | 2021/02/16 12:15 | Dennis Klein v Francisco Sanchi | L | 1-3 |
| Challenger Ochsenhausen | 2021/02/16 09:20 | Francisco Sanchi v Dennis Klein | L | 3-2 |
| Challenger Ochsenhausen | 2021/02/16 08:40 | Eduardo Gonzales v Dennis Klein | W | 0-3 |
| Challenger Ochsenhausen | 2021/02/15 18:20 | Josip Huzjak v Dennis Klein | W | 1-3 |
| Challenger Ochsenhausen | 2021/02/15 17:00 | Jiri Martinko v Dennis Klein | W | 2-3 |
| Challenger Ochsenhausen | 2021/02/22 12:10 | Evgueni Chtchetinine v Liang Qiu | W | 1-3 |
| Challenger Ochsenhausen | 2021/02/22 07:30 | Felix Wetzel v Liang Qiu | W | 1-3 |
| Challenger Ochsenhausen | 2021/02/02 15:00 | Dauud Cheaib v Liang Qiu | W | 2-3 |
| Challenger Ochsenhausen | 2021/02/02 14:15 | Liang Qiu v Simon Berglund | L | 1-3 |
| Challenger Ochsenhausen | 2021/02/02 11:20 | Liang Qiu v Dauud Cheaib | W | 3-1 |
| Challenger Ochsenhausen | 2021/02/02 08:00 | Liang Qiu v Kanak Jha | L | 0-3 |
| Challenger Ochsenhausen | 2021/02/01 19:00 | Liang Qiu v Miguel Chamorro | W | 3-0 |
| Challenger Ochsenhausen | 2021/02/01 16:20 | Nicolas Burgos v Liang Qiu | W | 2-3 |