Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2022/12/20 07:30 | Samuel Amann v Sven Happek | W | 1-3 |
| Challenger Series TT | 2022/11/17 18:10 | Sven Happek v Samuel Amann | W | 3-0 |
| Challenger Series TT | 2022/10/24 09:10 | Sven Happek v Samuel Amann | W | 3-1 |
| Challenger Series TT | 2022/09/12 08:30 | Sven Happek v Samuel Amann | L | 1-3 |
| Challenger Series TT | 2022/07/11 07:10 | Samuel Amann v Sven Happek | W | 1-3 |
| Challenger Ochsenhausen | 2022/06/27 09:10 | Samuel Amann v Sven Happek | W | 2-3 |
| Challenger Ochsenhausen | 2022/01/27 08:10 | Sven Happek v Samuel Amann | W | 3-0 |
| Challenger Ochsenhausen | 2022/01/20 12:50 | Samuel Amann v Sven Happek | W | 0-3 |
| Challenger Series TT | 2023/06/22 07:50 | Sven Happek v Ihor Zavadskyi | L | 1-3 |
| Challenger Series TT | 2023/06/20 12:50 | Jose Guillot v Sven Happek | L | 3-1 |
| Challenger Series TT | 2023/06/20 12:05 | Carlo Rossi v Sven Happek | L | 3-1 |
| Challenger Series TT | 2023/06/20 10:30 | Sven Happek v Carlo Rossi | W | 3-1 |
| Challenger Series TT | 2023/06/20 07:50 | Sven Happek v Akito Itagaki | W | 3-0 |
| Challenger Series TT | 2023/06/19 19:10 | Sven Happek v Aljaz Godec | W | 3-2 |
| Challenger Series TT | 2023/06/19 14:30 | Sven Happek v Marco Stefanidis | W | 3-1 |
| Challenger Series TT | 2023/06/19 12:30 | Sven Happek v Johannes Willeke | W | 3-1 |
| Challenger Series TT | 2023/06/22 07:10 | Dennis Klein v Samuel Amann | L | 3-0 |
| Challenger Series TT | 2023/04/11 07:50 | Bohdan Sinkevych v Samuel Amann | L | 3-0 |
| Challenger Series TT | 2023/04/10 19:50 | Peter Hribar v Samuel Amann | L | 3-0 |
| Challenger Series TT | 2023/04/10 17:50 | Alvaro Gainza v Samuel Amann | L | 3-2 |
| Challenger Series TT | 2023/04/10 15:50 | Samuel Amann v Dauud Cheaib | L | 0-3 |
| Challenger Series TT | 2023/04/10 13:10 | Samuel Amann v Louis Price | L | 0-3 |
| Challenger Series TT | 2023/04/10 11:10 | Samuel Amann v Miguel Nunez | L | 0-3 |
| Challenger Series TT | 2023/04/10 08:30 | Florian Bluhm v Samuel Amann | L | 3-0 |