| Challenger Ochsenhausen | 2021/05/24 18:00 | Henning Zeptner v Dennis Klein | L | 0-3 |
| Challenger Ochsenhausen | 2021/05/24 15:20 | Ahmed El-Mahdy v Henning Zeptner | L | 3-1 |
| Challenger Ochsenhausen | 2021/05/24 11:50 | Daniel Rinderer v Henning Zeptner | L | 3-1 |
| Challenger Ochsenhausen | 2021/05/24 09:50 | Henning Zeptner v Dillon Chambers | L | 1-3 |
| Challenger Ochsenhausen | 2021/05/24 07:50 | Henning Zeptner v Christopher Ligocki | W | 3-1 |
| Challenger Ochsenhausen | 2021/05/07 11:30 | Florian Bluhm v Henning Zeptner | L | 3-2 |
| Challenger Ochsenhausen | 2021/05/07 10:45 | Carlos Muhlbach v Henning Zeptner | L | 3-0 |
| Challenger Ochsenhausen | 2021/05/07 08:25 | Henning Zeptner v Florian Saljani | W | 3-0 |
| Challenger Ochsenhausen | 2021/05/24 18:40 | Daniel Rinderer v Ali Gozubuyuk | L | 3-0 |
| Challenger Ochsenhausen | 2021/05/24 16:40 | Ali Gozubuyuk v Dillon Chambers | L | 0-3 |
| Challenger Ochsenhausen | 2021/05/24 14:00 | Ali Gozubuyuk v Christopher Ligocki | W | 3-1 |
| Challenger Ochsenhausen | 2021/05/24 11:10 | Ali Gozubuyuk v Dennis Klein | L | 2-3 |
| Challenger Ochsenhausen | 2021/05/24 08:30 | Josip Huzjak v Ali Gozubuyuk | 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 |