| Challenger Series TT | 2022/02/25 07:30 | Sven Happek v Josip Huzjak | L | 3-2 |
| Challenger Ochsenhausen | 2021/12/15 10:10 | Sven Happek v Josip Huzjak | W | 2-3 |
| Challenger Ochsenhausen | 2021/12/03 08:50 | Sven Happek v Josip Huzjak | L | 3-2 |
| Challenger Ochsenhausen | 2021/07/14 11:50 | Sven Happek v Josip Huzjak | L | 3-1 |
| Challenger Ochsenhausen | 2021/03/31 09:50 | Josip Huzjak v Sven Happek | L | 2-3 |
| Challenger Ochsenhausen | 2021/03/10 10:50 | Sven Happek v Josip Huzjak | L | 3-1 |
| Challenger Ochsenhausen | 2021/01/29 08:50 | Sven Happek v Josip Huzjak | W | 1-3 |
| Challenger Ochsenhausen | 2020/04/29 10:30 | Sven Happek v Josip Huzjak | L | 4-0 |
| Challenger Ochsenhausen | 2022/06/23 19:10 | Daniel Rinderer v Josip Huzjak | L | 3-2 |
| Challenger Ochsenhausen | 2022/06/23 16:30 | Dennis Klein v Josip Huzjak | L | 3-0 |
| Challenger Ochsenhausen | 2022/06/23 13:50 | Josip Huzjak v Simon Berglund | L | 0-3 |
| Challenger Ochsenhausen | 2022/06/23 10:30 | Josip Huzjak v Mohammadali Rouintanesfahani | W | 3-2 |
| Challenger Ochsenhausen | 2022/06/23 08:30 | Josip Huzjak v Albert Vilardell | L | 1-3 |
| Challenger Ochsenhausen | 2022/05/27 07:50 | Daniel Rinderer v Josip Huzjak | L | 3-0 |
| Challenger Ochsenhausen | 2022/05/26 18:30 | Dillon Chambers v Josip Huzjak | W | 1-3 |
| Challenger Ochsenhausen | 2022/05/26 17:10 | Dennis Klein v Josip Huzjak | L | 3-1 |
| Challenger Ochsenhausen | 2022/06/23 17:10 | Amirreza Abbasi v Sven Happek | L | 3-0 |
| Challenger Ochsenhausen | 2022/06/23 15:10 | Mohammadali Rouintanesfahani v Sven Happek | W | 1-3 |
| Challenger Ochsenhausen | 2022/06/23 12:30 | Daniel Rinderer v Sven Happek | L | 3-1 |
| Challenger Ochsenhausen | 2022/06/23 11:10 | Albert Vilardell v Sven Happek | L | 3-1 |
| Challenger Ochsenhausen | 2022/06/23 06:30 | Dennis Klein v Sven Happek | L | 3-0 |
| Challenger Ochsenhausen | 2022/06/21 08:30 | Kirill Fadeev v Sven Happek | L | 3-1 |
| Challenger Ochsenhausen | 2022/06/21 07:10 | Simon Berglund v Sven Happek | L | 3-0 |
| Challenger Ochsenhausen | 2022/06/20 17:10 | Damian Zech v Sven Happek | W | 2-3 |