Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/01/13 14:30 | Bohdan Sinkevych v Sven Happek | L | 3-0 |
| Challenger Series TT | 2023/01/13 11:30 | Sven Happek v Bohdan Sinkevych | L | 2-3 |
| Challenger Series TT | 2024/01/08 08:50 | Sven Happek v Dauud Cheaib | L | 0-3 |
| Challenger Series TT | 2023/12/08 10:10 | Mike Hollo v Sven Happek | L | 3-1 |
| Challenger Series TT | 2023/12/08 08:50 | Sven Happek v Max Klink | W | 3-1 |
| Challenger Series TT | 2023/12/07 16:50 | Alvaro Gainza v Sven Happek | W | 2-3 |
| Challenger Series TT | 2023/12/07 13:30 | Alexander Valuch v Sven Happek | L | 3-0 |
| Challenger Series TT | 2023/12/07 10:50 | Miguel Nunez v Sven Happek | L | 3-2 |
| Challenger Series TT | 2023/12/07 08:10 | Samuel Amann v Sven Happek | W | 0-3 |
| Challenger Series TT | 2023/11/14 09:30 | Liang Qiu v Sven Happek | L | 3-0 |
| Challenger Series TT | 2024/01/08 08:10 | Jeromy Loffler v Bohdan Sinkevych | W | 1-3 |
| Challenger Series TT | 2023/12/12 11:30 | Alexander Valuch v Bohdan Sinkevych | L | 3-0 |
| Challenger Series TT | 2023/12/12 07:30 | Dennis Klein v Bohdan Sinkevych | L | 3-1 |
| Challenger Series TT | 2023/12/11 19:30 | Kirill Fadeev v Bohdan Sinkevych | W | 2-3 |
| Challenger Series TT | 2023/12/11 16:10 | Bohdan Sinkevych v Liang Qiu | L | 1-3 |
| Challenger Series TT | 2023/12/11 14:10 | Jeromy Loffler v Bohdan Sinkevych | L | 3-1 |
| Challenger Series TT | 2023/12/11 11:30 | Lichen Wang v Bohdan Sinkevych | L | 3-0 |
| Challenger Series TT | 2023/12/11 08:50 | Mike Hollo v Bohdan Sinkevych | L | 3-0 |