| Challenger Ochsenhausen | 2022/07/28 10:30 | Kenan Hrnic v Damian Zech | L | 2-3 |
| Challenger Ochsenhausen | 2021/12/14 12:00 | Kenan Hrnic v Damian Zech | W | 3-1 |
| Challenger Series TT | 2023/02/02 13:30 | Kenan Hrnic v Kirill Fadeev | L | 1-3 |
| Challenger Series TT | 2023/02/02 10:10 | Dennis Klein v Kenan Hrnic | L | 3-0 |
| Challenger Series TT | 2023/02/02 08:10 | Kenan Hrnic v Anton Limonov | L | 0-3 |
| Challenger Series TT | 2023/01/17 08:50 | Andrei Putuntica v Kenan Hrnic | L | 3-0 |
| Challenger Series TT | 2023/01/17 08:10 | Amirreza Abbasi v Kenan Hrnic | L | 3-0 |
| Challenger Series TT | 2023/01/16 15:30 | Dauud Cheaib v Kenan Hrnic | L | 3-0 |
| Challenger Series TT | 2023/01/16 14:10 | Yannick Vostes v Kenan Hrnic | L | 3-2 |
| Challenger Series TT | 2023/01/16 12:10 | Florian Bluhm v Kenan Hrnic | L | 3-0 |
| Challenger Series TT | 2023/02/02 12:50 | Dennis Klein v Damian Zech | L | 3-0 |
| Challenger Series TT | 2023/02/02 10:50 | Damian Zech v Anton Limonov | L | 0-3 |
| Challenger Series TT | 2023/02/02 08:50 | Damian Zech v Dillon Chambers | L | 1-3 |
| Challenger Series TT | 2023/01/31 10:10 | Damian Zech v Albert Vilardell | L | 0-3 |
| Challenger Series TT | 2023/01/30 20:50 | Damian Zech v Josip Huzjak | L | 1-3 |
| Challenger Series TT | 2023/01/30 18:10 | Damian Zech v Samuel Amann | W | 3-0 |
| Challenger Series TT | 2023/01/30 15:30 | Makoto Nogami v Damian Zech | L | 3-2 |
| Challenger Series TT | 2023/01/30 12:50 | Florian Bluhm v Damian Zech | L | 3-0 |