| Challenger - Ochsenhausen | 2022/05/31 09:10 | Sven Happek v Carlo Rossi | L | 0-3 |
| Challenger - Ochsenhausen | 2021/09/30 11:50 | Sven Happek v Carlo Rossi | W | 3-1 |
| Challenger - Ochsenhausen | 2019/09/23 16:40 | Carlo Rossi v Sven Happek | L | 3-2 |
| 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 | 2023/06/19 09:10 | Dennis Klein v Sven Happek | L | 3-1 |
| Challenger Series TT | 2023/06/19 07:10 | Sven Happek v Jose Guillot | L | 1-3 |
| Challenger Series TT | 2023/06/15 09:10 | Norbert Tauler v Sven Happek | L | 3-1 |
| Challenger Series TT | 2023/06/15 07:10 | Sven Happek v Liang Qiu | L | 2-3 |
| Challenger Series TT | 2023/06/20 06:30 | Dennis Klein v Carlo Rossi | W | 0-3 |
| Challenger Series TT | 2023/06/19 18:30 | Carlo Rossi v Jose Guillot | L | 2-3 |
| Challenger Series TT | 2023/06/19 15:10 | Carlo Rossi v Johannes Willeke | W | 3-0 |
| Challenger Series TT | 2023/06/19 13:10 | Akito Itagaki v Carlo Rossi | W | 0-3 |
| Challenger Series TT | 2023/06/19 10:30 | Aljaz Godec v Carlo Rossi | W | 1-3 |
| Challenger Series TT | 2023/06/19 07:50 | Marco Stefanidis v Carlo Rossi | W | 1-3 |
| WTT Contender Lagos - Qual. | 2023/06/12 14:00 | Vincent Picard v Carlo Rossi | L | 3-0 |
| Challenger Series TT | 2023/05/30 11:30 | Anton Limonov v Carlo Rossi | L | 3-0 |