| Challenger Ochsenhausen | 2021/02/26 10:10 | Dennis Klein v Francisco Sanchi | L | 3-2 |
| Challenger Series TT | 2021/02/16 12:15 | Dennis Klein v Francisco Sanchi | W | 1-3 |
| Challenger Ochsenhausen | 2021/02/16 09:20 | Francisco Sanchi v Dennis Klein | W | 3-2 |
| Challenger Ochsenhausen | 2021/01/28 11:30 | Dennis Klein v Francisco Sanchi | L | 3-0 |
| Challenger Ochsenhausen | 2021/01/25 08:50 | Dennis Klein v Francisco Sanchi | L | 3-0 |