| Challenger Series TT | 2022/02/24 18:50 | Sven Happek v Dillon Chambers | W | 1-3 |
| Challenger Ochsenhausen | 2021/04/01 09:10 | Dillon Chambers v Sven Happek | W | 3-2 |
| Challenger Ochsenhausen | 2021/03/11 10:50 | Sven Happek v Dillon Chambers | L | 3-2 |
| Challenger Ochsenhausen | 2021/01/28 07:30 | Sven Happek v Dillon Chambers | W | 0-3 |
| Challenger Ochsenhausen | 2022/05/12 08:30 | Florian Bluhm v Dillon Chambers | L | 3-0 |
| Challenger Ochsenhausen | 2022/03/25 10:10 | Josip Huzjak v Dillon Chambers | W | 0-3 |
| Challenger Ochsenhausen | 2022/03/25 08:10 | Dillon Chambers v Kirill Fadeev | L | 0-3 |
| Challenger Ochsenhausen | 2022/03/24 20:10 | Simon Berglund v Dillon Chambers | L | 3-0 |
| Challenger Ochsenhausen | 2022/03/24 17:30 | Dennis Klein v Dillon Chambers | L | 3-1 |
| Challenger Ochsenhausen | 2022/03/24 14:50 | Dillon Chambers v Elias Ranefur | L | 0-3 |
| Challenger Ochsenhausen | 2022/03/24 11:30 | Dillon Chambers v Irvin Bertrand | L | 0-3 |
| Challenger Ochsenhausen | 2022/03/24 09:30 | Dillon Chambers v Sushmit Sriram | L | 2-3 |
| Challenger Ochsenhausen | 2022/05/12 06:30 | Sudhanshu Grover v Sven Happek | L | 3-1 |
| Challenger Series TT | 2022/02/25 07:30 | Sven Happek v Josip Huzjak | W | 3-2 |
| Challenger Series TT | 2022/02/24 18:50 | Sven Happek v Dillon Chambers | L | 1-3 |
| Challenger Ochsenhausen | 2022/02/24 17:30 | Sven Happek v Alexander Valuch | L | 0-3 |
| Challenger Series TT | 2022/02/24 12:50 | Sven Happek v Amirreza Abbasi | L | 1-3 |
| Challenger Series TT | 2022/02/24 10:10 | Sven Happek v Matteo Mutti | L | 1-3 |
| Challenger Series TT | 2022/02/24 07:30 | Sven Happek v Daniel Rinderer | L | 1-3 |
| Challenger Ochsenhausen | 2022/02/11 08:50 | Jakub Seibert v Sven Happek | W | 2-3 |