| 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 | 2021/02/15 13:30 | Pekka Pelz v Dennis Klein | W | 1-3 |
| Challenger Ochsenhausen | 2021/02/15 12:10 | Nicolas Burgos v Dennis Klein | W | 0-3 |