| Challenger Ochsenhausen | 2021/05/11 14:00 | Carlo Rossi v Josip Huzjak | L | 3-1 |
| Challenger Ochsenhausen | 2021/05/11 13:15 | Josip Huzjak v Fedor Kuzmin | L | 0-3 |
| Challenger Ochsenhausen | 2021/05/11 11:40 | Juri Grauer v Josip Huzjak | W | 0-3 |
| Challenger Ochsenhausen | 2021/05/11 07:40 | Dennis Klein v Josip Huzjak | L | 3-2 |
| Challenger Ochsenhausen | 2021/05/10 19:20 | Josip Huzjak v Samuel Amann | W | 3-0 |
| Challenger Ochsenhausen | 2021/05/10 16:00 | Josip Huzjak v Florian Bluhm | W | 3-1 |
| Challenger Ochsenhausen | 2021/05/10 14:00 | Fedor Kuzmin v Josip Huzjak | W | 0-3 |
| Challenger Ochsenhausen | 2021/05/10 10:30 | Carlo Rossi v Josip Huzjak | L | 3-1 |
| Challenger Ochsenhausen | 2021/05/18 09:40 | Evgueni Chtchetinine v Ali Gozubuyuk | L | 3-0 |
| Challenger Ochsenhausen | 2021/05/18 08:20 | Peter Hribar v Ali Gozubuyuk | L | 3-1 |
| Challenger Ochsenhausen | 2021/05/17 18:00 | Dauud Cheaib v Ali Gozubuyuk | L | 3-0 |
| Challenger Ochsenhausen | 2021/05/17 16:00 | Jonathan Thimon v Ali Gozubuyuk | W | 0-3 |
| Challenger Ochsenhausen | 2021/05/17 12:30 | Marius Henninger v Ali Gozubuyuk | L | 3-0 |
| Challenger Ochsenhausen | 2021/05/17 11:10 | Maciej Kubik v Ali Gozubuyuk | L | 3-1 |
| Challenger Ochsenhausen | 2021/05/17 06:30 | Carlos Muhlbach v Ali Gozubuyuk | L | 3-1 |