| Challenger Ochsenhausen | 2021/04/13 09:00 | Dennis Klein v Josip Huzjak | L | 3-2 |
| Challenger Ochsenhausen | 2021/04/13 07:00 | Dauud Cheaib v Josip Huzjak | L | 3-1 |
| Challenger Ochsenhausen | 2021/04/12 18:40 | Florian Bluhm v Josip Huzjak | L | 3-0 |
| Challenger Ochsenhausen | 2021/04/12 16:40 | Josip Huzjak v Andrey Semenov | L | 2-3 |
| Challenger Ochsenhausen | 2021/04/12 14:00 | Josip Huzjak v Miguel Chamorro | W | 3-1 |
| Challenger Ochsenhausen | 2021/04/12 11:10 | Josip Huzjak v Marius Henninger | W | 3-2 |
| Challenger Ochsenhausen | 2021/04/12 08:30 | Evgueni Chtchetinine v Josip Huzjak | L | 3-1 |
| Challenger Ochsenhausen | 2021/04/06 11:40 | Carlos Muhlbach v Josip Huzjak | L | 3-0 |
| Dusseldorf Masters | 2020/08/14 17:20 | Cedric Meissner v Daniel Rinderer | L | 4-3 |